From: Chegu Vinod <chegu_vinod@hp.com>
To: linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/63] Basic scheduler support for automatic NUMA balancing V8
Date: Thu, 24 Oct 2013 04:32:24 +0000 (UTC) [thread overview]
Message-ID: <loom.20131024T062208-763@post.gmane.org> (raw)
In-Reply-To: 1380288468-5551-1-git-send-email-mgorman@suse.de
Mel Gorman <mgorman <at> suse.de> writes:
>
> Weighing in at 63 patches makes the term "basic" in the series title is
> a misnomer.
>
> This series still has roughly the same goals as previous versions. It
> reduces overhead of automatic balancing through scan rate reduction
> and the avoidance of TLB flushes. It selects a preferred node and moves
> tasks towards their memory as well as moving memory toward their task. It
> handles shared pages and groups related tasks together. Some problems
such
> as shared page interleaving and properly dealing with processes that are
> larger than a node are being deferred.
>
> It is still based on 3.11 because that's what I was testing against. If
> we can agree this should be merged to -tip for testing I'll rebase to
deal
> with any scheduler conflicts but for now I do not want to invalidate
other
> peoples testing. The only obvious thing that is missing is hotplug
handling.
> Peter is currently working on reducing [get|put]_online_cpus overhead so
> that it can be added to migrate_swap.
>
> Peter, some of your patches are missing signed-offs-by -- 4-5, 43 and 55.
>
> Changelog since V7
> o THP migration race and pagetable insertion fixes
> o Do no handle PMDs in batch
> o Shared page migration throttling
> o Various changes to how last nid/pid information is recorded
> o False pid match sanity checks when joining NUMA task groups
> o Adapt scan rate based on local/remote fault statistics
> o Period retry of migration to preferred node
> o Limit scope of system-wide search
> o Schedule threads on the same node as process that created them
> o Cleanup numa_group on exec
>
> Changelog since V6
> o Group tasks that share pages together
> o More scan avoidance of VMAs mapping pages that are not likely to
migrate
> o cpunid conversion, system-wide searching of tasks to balance with
>
> Changelog since V6
> o Various TLB flush optimisations
> o Comment updates
> o Sanitise task_numa_fault callsites for consistent semantics
> o Revert some of the scanning adaption stuff
> o Revert patch that defers scanning until task schedules on another node
> o Start delayed scanning properly
> o Avoid the same task always performing the PTE scan
> o Continue PTE scanning even if migration is rate limited
>
> Changelog since V5
> o Add __GFP_NOWARN for numa hinting fault count
> o Use is_huge_zero_page
> o Favour moving tasks towards nodes with higher faults
> o Optionally resist moving tasks towards nodes with lower faults
> o Scan shared THP pages
>
> Changelog since V4
> o Added code that avoids overloading preferred nodes
> o Swap tasks if nodes are overloaded and the swap does not impair
locality
>
> Changelog since V3
> o Correct detection of unset last nid/pid information
> o Dropped nr_preferred_running and replaced it with Peter's load
balancing
> o Pass in correct node information for THP hinting faults
> o Pressure tasks sharing a THP page to move towards same node
> o Do not set pmd_numa if false sharing is detected
>
> Changelog since V2
> o Reshuffle to match Peter's implied preference for layout
> o Reshuffle to move private/shared split towards end of series to make it
> easier to evaluate the impact
> o Use PID information to identify private accesses
> o Set the floor for PTE scanning based on virtual address space scan
rates
> instead of time
> o Some locking improvements
> o Do not preempt pinned tasks unless they are kernel threads
>
> Changelog since V1
> o Scan pages with elevated map count (shared pages)
> o Scale scan rates based on the vsz of the process so the sampling of the
> task is independant of its size
> o Favour moving towards nodes with more faults even if it's not the
> preferred node
> o Laughably basic accounting of a compute overloaded node when selecting
> the preferred node.
> o Applied review comments
>
> This series integrates basic scheduler support for automatic NUMA
balancing.
> It was initially based on Peter Ziljstra's work in "sched, numa, mm:
> Add adaptive NUMA affinity support" but deviates too much to preserve
> Signed-off-bys. As before, if the relevant authors are ok with it I'll
> add Signed-off-bys (or add them yourselves if you pick the patches up).
> There has been a tonne of additional work from both Peter and Rik van
Riel.
>
> Some reports indicate that the performance is getting close to manual
> bindings for some workloads but your mileage will vary. As before, the
> intention is not to complete the work but to incrementally improve
mainline
> and preserve bisectability for any bug reports that crop up.
>
> Patch 1 is a monolithic dump of patches thare are destined for upstream
that
> this series indirectly depends upon.
>
> Patches 2-3 adds sysctl documentation and comment fixlets
>
> Patch 4 avoids accounting for a hinting fault if another thread handled
the
> fault in parallel
>
> Patches 5-6 avoid races with parallel THP migration and THP splits.
>
> Patch 7 corrects a THP NUMA hint fault accounting bug
>
> Patches 8-9 avoids TLB flushes during the PTE scan if no updates are made
>
> Patch 10 sanitizes task_numa_fault callsites to have consist semantics
and
> always record the fault based on the correct location of the page.
>
> Patch 11 closes races between THP migration and PMD clearing.
>
> Patch 12 avoids trying to migrate the THP zero page
>
> Patch 13 avoids the same task being selected to perform the PTE scan
within
> a shared address space.
>
> Patch 14 continues PTE scanning even if migration rate limited
>
> Patch 15 notes that delaying the PTE scan until a task is scheduled on an
> alternative node misses the case where the task is only accessing
> shared memory on a partially loaded machine and reverts a patch.
>
> Patch 16 initialises numa_next_scan properly so that PTE scanning is
delayed
> when a process starts.
>
> Patch 17 sets the scan rate proportional to the size of the task being
> scanned.
>
> Patch 18 slows the scan rate if no hinting faults were trapped by an
idle task.
>
> Patch 19 tracks NUMA hinting faults per-task and per-node
>
> Patches 20-24 selects a preferred node at the end of a PTE scan based on
what
> node incurred the highest number of NUMA faults. When the balancer
> is comparing two CPU it will prefer to locate tasks on their
> preferred node. When initially selected the task is rescheduled on
> the preferred node if it is not running on that node already. This
> avoids waiting for the scheduler to move the task slowly.
>
> Patch 25 adds infrastructure to allow separate tracking of shared/private
> pages but treats all faults as if they are private accesses. Laying
> it out this way reduces churn later in the series when private
> fault detection is introduced
>
> Patch 26 avoids some unnecessary allocation
>
> Patch 27-28 kicks away some training wheels and scans shared pages and
> small VMAs.
>
> Patch 29 introduces private fault detection based on the PID of the
faulting
> process and accounts for shared/private accesses differently.
>
> Patch 30 avoids migrating memory immediately after the load balancer
moves
> a task to another node in case it's a transient migration.
>
> Patch 31 avoids scanning VMAs that do not migrate-on-fault which
addresses
> a serious regression on a database performance test.
>
> Patch 32 pick the least loaded CPU based on a preferred node based on
> a scheduling domain common to both the source and destination
> NUMA node.
>
> Patch 33 retries task migration if an earlier attempt failed
>
> Patch 34 will begin task migration immediately if running on its
preferred
> node
>
> Patch 35 will avoid trapping hinting faults for shared read-only library
> pages as these never migrate anyway
>
> Patch 36 avoids handling pmd hinting faults if none of the ptes below it
were
> marked pte numa
>
> Patches 37-38 introduce a mechanism for swapping tasks
>
> Patch 39 uses a system-wide search to find tasks that can be swapped
> to improve the overall locality of the system.
>
> Patch 40 notes that the system-wide search may ignore the preferred node
and
> will use the preferred node placement if it has spare compute
> capacity.
>
> Patch 41 will perform a global search if a node that should have had
capacity
> cannot have a task migrated to it
>
> Patches 42-43 use cpupid to track pages so potential sharing tasks can
> be quickly found
>
> Patch 44 reports the ID of the numa group a task belongs.
>
> Patch 45 copies the cpupid on page migration
>
> Patch 46 avoids grouping based on read-only pages
>
> Patch 47 stops handling pages within a PMD in batch as it distorts fault
> statistics and failed to flush TLBs correctly.
>
> Patch 48 schedules new threads on the same node as the parent.
>
> Patch 49 schedules tasks based on their numa group
>
> Patch 50 cleans up tasks numa_group on exec
>
> Patch 51 avoids parallel updates to group stats
>
> Patch 52 adds some debugging aids
>
> Patches 53-54 separately considers task and group weights when selecting
the node to
> schedule a task on
>
> Patch 56 checks if PID truncation may have caused false matches before
joining tasks
> to a NUMA grou
>
> Patch 57 uses the false shared detection information for scan rate
adaption later
>
> Patch 58 adapts the scan rate based on local/remote faults
>
> Patch 59 removes the period scan rate reset
>
> Patch 60-61 throttles shared page migrations
>
> Patch 62 avoids the use of atomics protects the values with a spinlock
>
> Patch 63 periodically retries migrating a task back to its preferred node
>
> Kernel 3.11 is the testing baseline.
>
> o account-v8 Patches 1-8
> o falsedetect-v8 Patches 1-57
> o skipshared-v8 Patches 1-61
> o noatomics-v8 Patches 1-62
> o periodretry-v8 PAtches 1-63
>
> This is SpecJBB running on a 4-socket machine with THP enabled and one
JVM
> running for the whole system.
>
> specjbb
> 3.11.0 3.11.0
3.11.0 3.11.0 3.11.0
> account-v8r20 falsedetect-v8r33 skipshared-
v8r33 noatomics-v8r33 periodretry-v8r33
> TPut 1 26137.00 ( 0.00%) 26879.00 ( 2.84%) 26296.00 (
0.61%) 26563.00 ( 1.63%) 26043.00 ( -0.36%)
> TPut 2 56027.00 ( 0.00%) 55871.00 ( -0.28%) 55336.00 ( -
1.23%) 56325.00 ( 0.53%) 53021.00 ( -5.37%)
> TPut 3 84375.00 ( 0.00%) 86268.00 ( 2.24%) 82832.00 ( -
1.83%) 86164.00 ( 2.12%) 82818.00 ( -1.85%)
> TPut 4 114968.00 ( 0.00%) 115229.00 ( 0.23%) 108632.00 ( -
5.51%) 110348.00 ( -4.02%) 106984.00 ( -6.94%)
> TPut 5 139786.00 ( 0.00%) 136641.00 ( -2.25%) 131027.00 ( -
6.27%) 139978.00 ( 0.14%) 139000.00 ( -0.56%)
> TPut 6 168084.00 ( 0.00%) 167331.00 ( -0.45%) 159409.00 ( -
5.16%) 164444.00 ( -2.17%) 157117.00 ( -6.52%)
> TPut 7 196709.00 ( 0.00%) 194751.00 ( -1.00%) 182849.00 ( -
7.05%) 192798.00 ( -1.99%) 184336.00 ( -6.29%)
> TPut 8 217119.00 ( 0.00%) 220303.00 ( 1.47%) 211978.00 ( -
2.37%) 215026.00 ( -0.96%) 213757.00 ( -1.55%)
> TPut 9 240359.00 ( 0.00%) 244058.00 ( 1.54%) 237005.00 ( -
1.40%) 240441.00 ( 0.03%) 236827.00 ( -1.47%)
> TPut 10 263615.00 ( 0.00%) 265787.00 ( 0.82%) 260203.00 ( -
1.29%) 260737.00 ( -1.09%) 261361.00 ( -0.86%)
> TPut 11 292052.00 ( 0.00%) 293012.00 ( 0.33%) 294855.00 (
0.96%) 295295.00 ( 1.11%) 288431.00 ( -1.24%)
> TPut 12 306763.00 ( 0.00%) 318380.00 ( 3.79%) 317420.00 (
3.47%) 317958.00 ( 3.65%) 310027.00 ( 1.06%)
> TPut 13 336282.00 ( 0.00%) 338831.00 ( 0.76%) 342010.00 (
1.70%) 339773.00 ( 1.04%) 334431.00 ( -0.55%)
> TPut 14 359216.00 ( 0.00%) 365707.00 ( 1.81%) 366968.00 (
2.16%) 371908.00 ( 3.53%) 354059.00 ( -1.44%)
> TPut 15 394379.00 ( 0.00%) 382206.00 ( -3.09%) 372864.00 ( -
5.46%) 389394.00 ( -1.26%) 378397.00 ( -4.05%)
> TPut 16 391503.00 ( 0.00%) 394595.00 ( 0.79%) 409349.00 (
4.56%) 410242.00 ( 4.79%) 396774.00 ( 1.35%)
> TPut 17 418193.00 ( 0.00%) 425690.00 ( 1.79%) 427327.00 (
2.18%) 411347.00 ( -1.64%) 418920.00 ( 0.17%)
> TPut 18 445409.00 ( 0.00%) 440833.00 ( -1.03%) 447030.00 (
0.36%) 451240.00 ( 1.31%) 440823.00 ( -1.03%)
> TPut 19 447209.00 ( 0.00%) 455059.00 ( 1.76%) 459879.00 (
2.83%) 464383.00 ( 3.84%) 455354.00 ( 1.82%)
> TPut 20 462761.00 ( 0.00%) 472095.00 ( 2.02%) 479006.00 (
3.51%) 473824.00 ( 2.39%) 471917.00 ( 1.98%)
> TPut 21 481207.00 ( 0.00%) 485035.00 ( 0.80%) 491456.00 (
2.13%) 487685.00 ( 1.35%) 489372.00 ( 1.70%)
> TPut 22 495510.00 ( 0.00%) 492799.00 ( -0.55%) 502316.00 (
1.37%) 500868.00 ( 1.08%) 484667.00 ( -2.19%)
> TPut 23 496669.00 ( 0.00%) 486543.00 ( -2.04%) 518198.00 (
4.33%) 507320.00 ( 2.14%) 507332.00 ( 2.15%)
> TPut 24 519722.00 ( 0.00%) 513153.00 ( -1.26%) 521337.00 (
0.31%) 524108.00 ( 0.84%) 516621.00 ( -0.60%)
> TPut 25 516030.00 ( 0.00%) 501461.00 ( -2.82%) 507013.00 ( -
1.75%) 519228.00 ( 0.62%) 522712.00 ( 1.29%)
> TPut 26 521824.00 ( 0.00%) 499423.00 ( -4.29%) 522584.00 (
0.15%) 529076.00 ( 1.39%) 512817.00 ( -1.73%)
> TPut 27 514817.00 ( 0.00%) 489511.00 ( -4.92%) 503722.00 ( -
2.16%) 520135.00 ( 1.03%) 524537.00 ( 1.89%)
> TPut 28 505838.00 ( 0.00%) 485151.00 ( -4.09%) 499372.00 ( -
1.28%) 514423.00 ( 1.70%) 525086.00 ( 3.81%)
> TPut 29 503231.00 ( 0.00%) 496580.00 ( -1.32%) 503838.00 (
0.12%) 520836.00 ( 3.50%) 526196.00 ( 4.56%)
> TPut 30 487832.00 ( 0.00%) 512245.00 ( 5.00%) 506440.00 (
3.81%) 521409.00 ( 6.88%) 526048.00 ( 7.83%)
> TPut 31 492896.00 ( 0.00%) 520700.00 ( 5.64%) 513648.00 (
4.21%) 514615.00 ( 4.41%) 525456.00 ( 6.61%)
> TPut 32 499692.00 ( 0.00%) 514756.00 ( 3.01%) 487157.00 ( -
2.51%) 510817.00 ( 2.23%) 518296.00 ( 3.72%)
> TPut 33 494054.00 ( 0.00%) 514193.00 ( 4.08%) 499706.00 (
1.14%) 509734.00 ( 3.17%) 508643.00 ( 2.95%)
> TPut 34 483213.00 ( 0.00%) 512204.00 ( 6.00%) 470473.00 ( -
2.64%) 495556.00 ( 2.55%) 510309.00 ( 5.61%)
> TPut 35 480068.00 ( 0.00%) 506472.00 ( 5.50%) 473011.00 ( -
1.47%) 481812.00 ( 0.36%) 513299.00 ( 6.92%)
> TPut 36 450114.00 ( 0.00%) 506894.00 ( 12.61%) 477324.00 (
6.05%) 469524.00 ( 4.31%) 486779.00 ( 8.15%)
> TPut 37 440154.00 ( 0.00%) 506266.00 ( 15.02%) 459718.00 (
4.44%) 484438.00 ( 10.06%) 508613.00 ( 15.55%)
> TPut 38 461536.00 ( 0.00%) 499960.00 ( 8.33%) 460417.00 ( -
0.24%) 473332.00 ( 2.56%) 514863.00 ( 11.55%)
> TPut 39 460596.00 ( 0.00%) 503353.00 ( 9.28%) 461793.00 (
0.26%) 468966.00 ( 1.82%) 498496.00 ( 8.23%)
> TPut 40 450746.00 ( 0.00%) 497059.00 ( 10.27%) 440518.00 ( -
2.27%) 446687.00 ( -0.90%) 497462.00 ( 10.36%)
> TPut 41 456565.00 ( 0.00%) 482549.00 ( 5.69%) 451770.00 ( -
1.05%) 444771.00 ( -2.58%) 491267.00 ( 7.60%)
> TPut 42 447258.00 ( 0.00%) 490184.00 ( 9.60%) 445414.00 ( -
0.41%) 452870.00 ( 1.25%) 469483.00 ( 4.97%)
> TPut 43 408979.00 ( 0.00%) 467385.00 ( 14.28%) 416133.00 (
1.75%) 448137.00 ( 9.57%) 486668.00 ( 19.00%)
> TPut 44 415774.00 ( 0.00%) 460710.00 ( 10.81%) 412956.00 ( -
0.68%) 445221.00 ( 7.08%) 479664.00 ( 15.37%)
> TPut 45 419682.00 ( 0.00%) 445293.00 ( 6.10%) 411016.00 ( -
2.06%) 426650.00 ( 1.66%) 464358.00 ( 10.65%)
> TPut 46 422698.00 ( 0.00%) 425270.00 ( 0.61%) 396870.00 ( -
6.11%) 430955.00 ( 1.95%) 460729.00 ( 9.00%)
> TPut 47 416622.00 ( 0.00%) 395166.00 ( -5.15%) 403654.00 ( -
3.11%) 397989.00 ( -4.47%) 463184.00 ( 11.18%)
> TPut 48 409081.00 ( 0.00%) 382490.00 ( -6.50%) 377057.00 ( -
7.83%) 391214.00 ( -4.37%) 462186.00 ( 12.98%)
>
> Mostly flat but it's interesting to note what a large impact the periodic
> migration of tasks to their preferred node is.
>
> specjbb Peaks
> 3.11.0
3.11.0 3.11.0 3.11.0
3.11.0
> account-v8r20 falsedetect-
v8r33 skipshared-v8r33 noatomics-v8r33 periodretry-
v8r33
> Expctd Warehouse 48.00 ( 0.00%) 48.00 (
0.00%) 48.00 ( 0.00%) 48.00 ( 0.00%) 48.00 (
0.00%)
> Expctd Peak Bops 416622.00 ( 0.00%) 395166.00 ( -5.15%)
403654.00 ( -3.11%) 397989.00 ( -4.47%) 463184.00
> ( 11.18%)
> Actual Warehouse 27.00 ( 0.00%) 32.00 (
18.52%) 27.00 ( 0.00%) 27.00 ( 0.00%) 30.00 (
11.11%)
> Actual Peak Bops 521824.00 ( 0.00%) 520700.00 ( -0.22%)
522584.00 ( 0.15%) 529076.00 ( 1.39%) 526196.00 ( 0.84%)
> SpecJBB Bops 8349.00 ( 0.00%) 7806.00 ( -
6.50%) 7695.00 ( -7.83%) 7984.00 ( -4.37%) 9432.00 (
12.97%)
> SpecJBB Bops/JVM 8349.00 ( 0.00%) 7806.00 ( -
6.50%) 7695.00 ( -7.83%) 7984.00 ( -4.37%) 9432.00 (
12.97%)
>
> Same.
>
> 3.11.0 3.11.0 3.11.0 3.11.0 3.11.0
> account-v8r20falsedetect-v8r33skipshared-v8r33noatomics-
v8r33periodretry-v8r33
> User 43797.04 44575.08 44571.62 44544.22 44591.39
> System 863.95 135.20 151.93 137.42 165.06
> Elapsed 1665.51 1665.06 1665.30 1665.22 1665.06
>
> Big reduction in system CPU usage.
>
> 3.11.0 3.11.0 3.11.0
3.11.0 3.11.0
> account-v8r20falsedetect-v8r33skipshared-
v8r33noatomics-v8r33periodretry-v8r33
> Compaction cost 135535 13678 17594
15600 13820
> NUMA PTE updates 19815264 697698 3495802
3195079 3668267
> NUMA hint faults 4029907 694556 3471637
3167057 3638629
> NUMA hint local faults 1109183 239859 985693
894926 1148882
> NUMA hint local percent 27 34 28
28 31
> NUMA pages migrated 130574018 13177453 16950408
15029583 13314876
> AutoNUMA cost 22769 3728 17704
16143 18471
>
> Big reduction in the number of PTE updates but similar-ish fault
statistics. We're getting roughly
> the same benefit for much less work.
>
> autonumabench
> 3.11.0
3.11.0 3.11.0 3.11.0 3.11.0
> account-v8r20 falsedetect-
v8r33 skipshared-v8r33 noatomics-v8r33 periodretry-v8r33
> User NUMA01 44031.89 ( 0.00%) 60916.77 (-38.35%)
62988.76 (-43.05%) 62187.81 (-41.23%) 35403.01 ( 19.60%)
> User NUMA01_THEADLOCAL 16956.40 ( 0.00%) 17665.21 ( -4.18%)
17809.92 ( -5.03%) 17605.32 ( -3.83%)
> 17238.74 ( -1.67%)
> User NUMA02 2044.83 ( 0.00%) 2054.14 ( -
0.46%) 2106.18 ( -3.00%) 2058.25 ( -0.66%) 2065.25 ( -1.00%)
> User NUMA02_SMT 982.52 ( 0.00%) 978.55 (
0.40%) 985.73 ( -0.33%) 975.96 ( 0.67%) 1001.48 ( -1.93%)
> System NUMA01 1038.02 ( 0.00%) 320.44 (
69.13%) 440.97 ( 57.52%) 179.55 ( 82.70%) 333.93 ( 67.83%)
> System NUMA01_THEADLOCAL 323.01 ( 0.00%) 125.90 (
61.02%) 132.59 ( 58.95%) 123.52 ( 61.76%) 171.04 ( 47.05%)
> System NUMA02 10.26 ( 0.00%) 11.34 (-
10.53%) 9.97 ( 2.83%) 9.07 ( 11.60%) 6.08 ( 40.74%)
> System NUMA02_SMT 3.34 ( 0.00%) 3.43 ( -
2.69%) 5.45 (-63.17%) 3.42 ( -2.40%) 3.40 ( -1.80%)
> Elapsed NUMA01 999.90 ( 0.00%) 1363.26 (-
36.34%) 1409.55 (-40.97%) 1386.34 (-38.65%) 792.81 ( 20.71%)
> Elapsed NUMA01_THEADLOCAL 374.82 ( 0.00%) 395.48 ( -
5.51%) 399.18 ( -6.50%) 393.90 ( -5.09%) 388.22 ( -3.58%)
> Elapsed NUMA02 48.66 ( 0.00%) 50.15 ( -
3.06%) 52.75 ( -8.41%) 50.81 ( -4.42%) 48.48 ( 0.37%)
> Elapsed NUMA02_SMT 46.17 ( 0.00%) 46.72 ( -
1.19%) 46.51 ( -0.74%) 45.98 ( 0.41%) 57.64 (-24.84%)
> CPU NUMA01 4507.00 ( 0.00%) 4491.00 (
0.36%) 4499.00 ( 0.18%) 4498.00 ( 0.20%) 4507.00 ( 0.00%)
> CPU NUMA01_THEADLOCAL 4609.00 ( 0.00%) 4498.00 (
2.41%) 4494.00 ( 2.50%) 4500.00 ( 2.36%) 4484.00 ( 2.71%)
> CPU NUMA02 4222.00 ( 0.00%) 4117.00 (
2.49%) 4011.00 ( 5.00%) 4068.00 ( 3.65%) 4272.00 ( -1.18%)
> CPU NUMA02_SMT 2135.00 ( 0.00%) 2101.00 (
1.59%) 2130.00 ( 0.23%) 2129.00 ( 0.28%) 1743.00 ( 18.36%)
>
> In general, the numa01 (adverse workload) is hurt by the series until the
> periodic retry patch is merged. In general that patch helps a lot except
> in the case of numa02_SMT where it punished severely. It's odd because
the
> amount of system CPU usage that workload incurs is tiny.
>
> This is SpecJBB running on a 4-socket machine with THP enabled and one
JVM
> running per node on the system.
>
> specjbb
> 3.11.0 3.11.0
3.11.0 3.11.0 3.11.0
> account-v8r20 falsedetect-v8r33 skipshared-
v8r33 noatomics-v8r33 periodretry-v8r33
> Mean 1 31915.75 ( 0.00%) 30007.50 ( -5.98%) 29590.50 ( -
7.29%) 30562.75 ( -4.24%) 28888.75 ( -9.48%)
> Mean 2 61914.50 ( 0.00%) 60854.00 ( -1.71%) 62163.25 (
0.40%) 60594.25 ( -2.13%) 62521.75 ( 0.98%)
> Mean 3 89693.25 ( 0.00%) 91159.25 ( 1.63%) 91939.00 (
2.50%) 93235.50 ( 3.95%) 94956.75 ( 5.87%)
> Mean 4 115687.50 ( 0.00%) 117438.00 ( 1.51%) 119940.50 (
3.68%) 124273.75 ( 7.42%) 124600.75 ( 7.70%)
> Mean 5 142789.25 ( 0.00%) 141024.00 ( -1.24%) 146349.00 (
2.49%) 152133.25 ( 6.54%) 150575.00 ( 5.45%)
> Mean 6 153345.25 ( 0.00%) 160091.25 ( 4.40%) 160991.00 (
4.99%) 174128.50 ( 13.55%) 176533.50 ( 15.12%)
> Mean 7 153004.00 ( 0.00%) 160972.00 ( 5.21%) 180219.75 (
17.79%) 176605.25 ( 15.43%) 179010.25 ( 17.00%)
> Mean 8 151906.00 ( 0.00%) 161832.50 ( 6.53%) 164960.75 (
8.59%) 169345.25 ( 11.48%) 181374.75 ( 19.40%)
> Mean 9 154198.50 ( 0.00%) 148888.25 ( -3.44%) 167819.75 (
8.83%) 169039.75 ( 9.62%) 181401.75 ( 17.64%)
> Mean 10 153377.00 ( 0.00%) 143134.75 ( -6.68%) 155716.00 (
1.53%) 161498.25 ( 5.29%) 175450.50 ( 14.39%)
> Mean 11 138278.50 ( 0.00%) 139928.50 ( 1.19%) 149627.25 (
8.21%) 155845.75 ( 12.70%) 170797.75 ( 23.52%)
> Mean 12 128598.00 ( 0.00%) 134543.50 ( 4.62%) 142626.50 (
10.91%) 141966.75 ( 10.40%) 163766.50 ( 27.35%)
> Mean 13 130092.00 ( 0.00%) 134991.25 ( 3.77%) 137179.50 (
5.45%) 140382.75 ( 7.91%) 159106.00 ( 22.30%)
> Mean 14 121786.25 ( 0.00%) 134701.25 ( 10.60%) 134942.75 (
10.80%) 140522.50 ( 15.38%) 156676.25 ( 28.65%)
> Mean 15 121842.25 ( 0.00%) 134521.00 ( 10.41%) 134251.25 (
10.18%) 136963.50 ( 12.41%) 154455.50 ( 26.77%)
> Mean 16 120808.25 ( 0.00%) 130800.50 ( 8.27%) 136500.50 (
12.99%) 134488.50 ( 11.32%) 150137.75 ( 24.28%)
> Mean 17 118703.25 ( 0.00%) 130281.00 ( 9.75%) 134345.00 (
13.18%) 132618.75 ( 11.72%) 147027.50 ( 23.86%)
> Mean 18 116243.50 ( 0.00%) 128010.75 ( 10.12%) 130742.75 (
12.47%) 128031.25 ( 10.14%) 145852.50 ( 25.47%)
> Mean 19 116508.75 ( 0.00%) 127627.25 ( 9.54%) 127561.50 (
9.49%) 123765.25 ( 6.23%) 140879.25 ( 20.92%)
> Mean 20 117386.50 ( 0.00%) 133369.25 ( 13.62%) 126746.00 (
7.97%) 127327.75 ( 8.47%) 141559.25 ( 20.59%)
> Mean 21 118308.00 ( 0.00%) 129000.25 ( 9.04%) 127664.25 (
7.91%) 125308.50 ( 5.92%) 138110.75 ( 16.74%)
> Mean 22 116577.75 ( 0.00%) 130031.50 ( 11.54%) 127755.75 (
9.59%) 129445.75 ( 11.04%) 136937.50 ( 17.46%)
> Mean 23 117444.50 ( 0.00%) 125593.50 ( 6.94%) 125423.25 (
6.79%) 121178.50 ( 3.18%) 134960.25 ( 14.91%)
> Mean 24 108114.00 ( 0.00%) 121164.25 ( 12.07%) 117293.75 (
8.49%) 119736.25 ( 10.75%) 130200.25 ( 20.43%)
> Mean 25 114144.50 ( 0.00%) 118106.50 ( 3.47%) 118405.00 (
3.73%) 127544.75 ( 11.74%) 133198.50 ( 16.69%)
> Mean 26 111531.00 ( 0.00%) 120096.00 ( 7.68%) 124074.50 (
11.25%) 131079.50 ( 17.53%) 133463.50 ( 19.66%)
> Mean 27 113381.50 ( 0.00%) 121547.75 ( 7.20%) 121492.75 (
7.15%) 127801.25 ( 12.72%) 135127.25 ( 19.18%)
> Mean 28 111333.50 ( 0.00%) 118054.25 ( 6.04%) 121414.00 (
9.05%) 134754.00 ( 21.04%) 133270.00 ( 19.70%)
> Mean 29 108411.25 ( 0.00%) 119588.00 ( 10.31%) 123334.50 (
13.77%) 132048.25 ( 21.80%) 131892.50 ( 21.66%)
> Mean 30 110572.00 ( 0.00%) 119673.50 ( 8.23%) 118952.00 (
7.58%) 127541.50 ( 15.35%) 132982.00 ( 20.27%)
> Mean 31 114267.00 ( 0.00%) 117367.75 ( 2.71%) 119463.75 (
4.55%) 126795.75 ( 10.96%) 133970.00 ( 17.24%)
> Mean 32 112054.50 ( 0.00%) 115357.00 ( 2.95%) 111839.00 ( -
0.19%) 126267.00 ( 12.68%) 133289.00 ( 18.95%)
> Mean 33 113664.50 ( 0.00%) 115657.50 ( 1.75%) 119608.00 (
5.23%) 124996.50 ( 9.97%) 135356.00 ( 19.08%)
> Mean 34 110793.00 ( 0.00%) 115023.00 ( 3.82%) 122672.25 (
10.72%) 124025.50 ( 11.94%) 135818.00 ( 22.59%)
> Mean 35 116855.75 ( 0.00%) 118724.00 ( 1.60%) 115770.50 ( -
0.93%) 129668.50 ( 10.96%) 136327.00 ( 16.66%)
> Mean 36 112375.25 ( 0.00%) 121457.50 ( 8.08%) 116098.00 (
3.31%) 125627.25 ( 11.79%) 134052.25 ( 19.29%)
> Mean 37 109171.25 ( 0.00%) 119452.75 ( 9.42%) 119359.75 (
9.33%) 119926.25 ( 9.85%) 133200.75 ( 22.01%)
> Mean 38 105759.50 ( 0.00%) 124684.00 ( 17.89%) 117629.25 (
11.22%) 119691.25 ( 13.17%) 132992.75 ( 25.75%)
> Mean 39 110185.00 ( 0.00%) 125151.75 ( 13.58%) 112839.00 (
2.41%) 117929.00 ( 7.03%) 133400.75 ( 21.07%)
> Mean 40 110683.50 ( 0.00%) 122496.50 ( 10.67%) 118156.50 (
6.75%) 120739.00 ( 9.08%) 132520.25 ( 19.73%)
> Mean 41 102152.00 ( 0.00%) 123401.50 ( 20.80%) 114519.00 (
12.11%) 119549.00 ( 17.03%) 132827.00 ( 30.03%)
> Mean 42 105378.50 ( 0.00%) 115035.25 ( 9.16%) 110092.25 (
4.47%) 119086.75 ( 13.01%) 130747.75 ( 24.07%)
> Mean 43 107112.00 ( 0.00%) 112384.75 ( 4.92%) 110925.75 (
3.56%) 112715.75 ( 5.23%) 133097.00 ( 24.26%)
> Mean 44 105611.25 ( 0.00%) 118682.75 ( 12.38%) 106846.50 (
1.17%) 114581.25 ( 8.49%) 131913.25 ( 24.90%)
> Mean 45 105092.25 ( 0.00%) 116890.50 ( 11.23%) 110318.25 (
4.97%) 113010.00 ( 7.53%) 130818.00 ( 24.48%)
> Mean 46 111016.25 ( 0.00%) 111954.00 ( 0.84%) 106253.75 ( -
4.29%) 111746.00 ( 0.66%) 128427.25 ( 15.68%)
> Mean 47 106660.75 ( 0.00%) 116336.00 ( 9.07%) 110024.00 (
3.15%) 109703.50 ( 2.85%) 128223.50 ( 20.22%)
> Mean 48 103423.75 ( 0.00%) 115325.00 ( 11.51%) 108381.50 (
4.79%) 112662.50 ( 8.93%) 128536.75 ( 24.28%)
> Stddev 1 1309.96 ( 0.00%) 1796.84 (-37.17%) 1529.84 (-
16.78%) 725.83 ( 44.59%) 1207.28 ( 7.84%)
> Stddev 2 900.52 ( 0.00%) 954.05 ( -5.94%) 2856.62 (-
217.22%) 2730.12 (-203.17%) 2743.74 (-204.68%)
> Stddev 3 845.76 ( 0.00%) 778.56 ( 7.95%) 3350.11 (-
296.11%) 2794.68 (-230.43%) 1923.88 (-127.47%)
> Stddev 4 4988.11 ( 0.00%) 2321.83 ( 53.45%) 4635.26 (
7.07%) 867.46 ( 82.61%) 1288.21 ( 74.17%)
> Stddev 5 5969.57 ( 0.00%) 1605.41 ( 73.11%) 5415.52 (
9.28%) 2328.13 ( 61.00%) 1844.24 ( 69.11%)
> Stddev 6 12478.42 ( 0.00%) 3204.26 ( 74.32%) 4928.12 (
60.51%) 1908.73 ( 84.70%) 1109.97 ( 91.10%)
> Stddev 7 5975.15 ( 0.00%) 5954.29 ( 0.35%) 2558.42 (
57.18%) 2245.10 ( 62.43%) 894.47 ( 85.03%)
> Stddev 8 3404.47 ( 0.00%) 16525.39 (-385.40%) 8166.52 (-
139.88%) 6520.79 (-91.54%) 1233.67 ( 63.76%)
> Stddev 9 8811.92 ( 0.00%) 17373.77 (-97.16%) 8384.83 (
4.85%) 4511.21 ( 48.81%) 6092.53 ( 30.86%)
> Stddev 10 4050.40 ( 0.00%) 16781.65 (-314.32%) 9299.40 (-
129.59%) 7901.83 (-95.09%) 7086.69 (-74.96%)
> Stddev 11 9475.98 ( 0.00%) 22925.45 (-141.93%) 16135.16 (-
70.27%) 15935.55 (-68.17%) 12776.76 (-34.83%)
> Stddev 12 1961.27 ( 0.00%) 17661.49 (-800.51%) 12080.97 (-
515.98%) 13293.01 (-577.77%) 16113.60 (-721.59%)
> Stddev 13 2164.98 ( 0.00%) 20902.15 (-865.47%) 13747.72 (-
535.00%) 10093.27 (-366.21%) 17382.57 (-702.90%)
> Stddev 14 4186.32 ( 0.00%) 13552.26 (-223.73%) 15955.56 (-
281.14%) 9782.02 (-133.67%) 17469.49 (-317.30%)
> Stddev 15 1766.42 ( 0.00%) 14148.85 (-700.99%) 10003.01 (-
466.29%) 7777.42 (-340.29%) 17940.51 (-915.64%)
> Stddev 16 4116.25 ( 0.00%) 17131.59 (-316.19%) 9714.07 (-
135.99%) 9721.54 (-136.17%) 16802.13 (-308.19%)
> Stddev 17 4252.36 ( 0.00%) 14060.30 (-230.65%) 7048.48 (-
65.75%) 6797.22 (-59.85%) 14995.28 (-252.63%)
> Stddev 18 4421.47 ( 0.00%) 15675.15 (-254.52%) 6404.13 (-
44.84%) 8467.89 (-91.52%) 14654.80 (-231.45%)
> Stddev 19 1969.40 ( 0.00%) 13932.78 (-607.46%) 8825.82 (-
348.15%) 8576.52 (-335.49%) 14659.18 (-644.35%)
> Stddev 20 4204.79 ( 0.00%) 9151.72 (-117.65%) 6336.02 (-
50.69%) 4104.31 ( 2.39%) 13911.10 (-230.84%)
> Stddev 21 2319.45 ( 0.00%) 7818.64 (-237.09%) 5782.65 (-
149.31%) 9329.94 (-302.25%) 15425.22 (-565.04%)
> Stddev 22 1704.55 ( 0.00%) 8563.76 (-402.40%) 4382.12 (-
157.08%) 5264.66 (-208.86%) 14777.92 (-766.97%)
> Stddev 23 4454.10 ( 0.00%) 6454.89 (-44.92%) 10773.06 (-
141.87%) 8137.56 (-82.70%) 12067.61 (-170.93%)
> Stddev 24 3134.81 ( 0.00%) 9448.45 (-201.40%) 5911.90 (-
88.59%) 8289.99 (-164.45%) 19696.90 (-528.33%)
> Stddev 25 1946.32 ( 0.00%) 9054.46 (-365.21%) 5994.17 (-
207.98%) 5082.87 (-161.15%) 15444.45 (-693.52%)
> Stddev 26 6694.44 ( 0.00%) 8657.01 (-29.32%) 6814.85 ( -
1.80%) 3582.44 ( 46.49%) 15096.81 (-125.51%)
> Stddev 27 5159.46 ( 0.00%) 7280.85 (-41.12%) 4058.33 (
21.34%) 6129.48 (-18.80%) 14158.65 (-174.42%)
> Stddev 28 2665.79 ( 0.00%) 10345.52 (-288.08%) 2327.74 (
12.68%) 1748.34 ( 34.42%) 14139.33 (-430.40%)
> Stddev 29 6353.05 ( 0.00%) 7672.72 (-20.77%) 6876.07 ( -
8.23%) 4385.79 ( 30.97%) 13514.71 (-112.73%)
> Stddev 30 5378.33 ( 0.00%) 8665.82 (-61.12%) 6681.09 (-
24.22%) 7983.87 (-48.45%) 14576.47 (-171.02%)
> Stddev 31 10359.52 ( 0.00%) 10179.47 ( 1.74%) 5075.29 (
51.01%) 4198.25 ( 59.47%) 14020.78 (-35.34%)
> Stddev 32 9090.09 ( 0.00%) 17015.37 (-87.19%) 6124.63 (
32.62%) 5635.11 ( 38.01%) 14899.79 (-63.91%)
> Stddev 33 7143.20 ( 0.00%) 15988.55 (-123.83%) 7464.48 ( -
4.50%) 3019.97 ( 57.72%) 13049.06 (-82.68%)
> Stddev 34 4954.01 ( 0.00%) 8884.64 (-79.34%) 7827.59 (-
58.01%) 4385.45 ( 11.48%) 13382.51 (-170.14%)
> Stddev 35 6247.59 ( 0.00%) 9136.41 (-46.24%) 4600.77 (
26.36%) 3211.43 ( 48.60%) 11547.88 (-84.84%)
> Stddev 36 7325.84 ( 0.00%) 7969.69 ( -8.79%) 5746.70 (
21.56%) 6279.05 ( 14.29%) 13622.23 (-85.95%)
> Stddev 37 7952.43 ( 0.00%) 11648.76 (-46.48%) 6065.84 (
23.72%) 6666.17 ( 16.17%) 12860.81 (-61.72%)
> Stddev 38 6473.08 ( 0.00%) 6465.75 ( 0.11%) 4958.70 (
23.40%) 6539.37 ( -1.02%) 15220.62 (-135.14%)
> Stddev 39 2568.69 ( 0.00%) 5494.22 (-113.89%) 5649.24 (-
119.93%) 5527.10 (-115.17%) 13685.29 (-432.77%)
> Stddev 40 2823.65 ( 0.00%) 7118.16 (-152.09%) 1970.80 (
30.20%) 5372.43 (-90.27%) 13223.53 (-368.31%)
> Stddev 41 2145.41 ( 0.00%) 5532.78 (-157.89%) 3929.36 (-
83.15%) 6514.51 (-203.65%) 13346.51 (-522.10%)
> Stddev 42 2334.79 ( 0.00%) 7695.64 (-229.61%) 5361.91 (-
129.65%) 5845.25 (-150.35%) 13245.12 (-467.29%)
> Stddev 43 8940.43 ( 0.00%) 14286.16 (-59.79%) 9110.82 ( -
1.91%) 8481.12 ( 5.14%) 14413.92 (-61.22%)
> Stddev 44 6738.12 ( 0.00%) 10145.70 (-50.57%) 4789.94 (
28.91%) 7463.67 (-10.77%) 15134.45 (-124.61%)
> Stddev 45 3219.83 ( 0.00%) 6743.00 (-109.42%) 7629.10 (-
136.94%) 5441.27 (-68.99%) 13401.43 (-316.22%)
> Stddev 46 7925.89 ( 0.00%) 9956.81 (-25.62%) 9729.49 (-
22.76%) 10130.88 (-27.82%) 14020.22 (-76.89%)
> Stddev 47 7034.02 ( 0.00%) 12456.90 (-77.09%) 12705.68 (-
80.63%) 5117.46 ( 27.25%) 13224.66 (-88.01%)
> Stddev 48 11774.16 ( 0.00%) 8678.39 ( 26.29%) 11906.07 ( -
1.12%) 5293.32 ( 55.04%) 13968.76 (-18.64%)
> TPut 1 127663.00 ( 0.00%) 120030.00 ( -5.98%) 118362.00 ( -
7.29%) 122251.00 ( -4.24%) 115555.00 ( -9.48%)
> TPut 2 247658.00 ( 0.00%) 243416.00 ( -1.71%) 248653.00 (
0.40%) 242377.00 ( -2.13%) 250087.00 ( 0.98%)
> TPut 3 358773.00 ( 0.00%) 364637.00 ( 1.63%) 367756.00 (
2.50%) 372942.00 ( 3.95%) 379827.00 ( 5.87%)
> TPut 4 462750.00 ( 0.00%) 469752.00 ( 1.51%) 479762.00 (
3.68%) 497095.00 ( 7.42%) 498403.00 ( 7.70%)
> TPut 5 571157.00 ( 0.00%) 564096.00 ( -1.24%) 585396.00 (
2.49%) 608533.00 ( 6.54%) 602300.00 ( 5.45%)
> TPut 6 613381.00 ( 0.00%) 640365.00 ( 4.40%) 643964.00 (
4.99%) 696514.00 ( 13.55%) 706134.00 ( 15.12%)
> TPut 7 612016.00 ( 0.00%) 643888.00 ( 5.21%) 720879.00 (
17.79%) 706421.00 ( 15.43%) 716041.00 ( 17.00%)
> TPut 8 607624.00 ( 0.00%) 647330.00 ( 6.53%) 659843.00 (
8.59%) 677381.00 ( 11.48%) 725499.00 ( 19.40%)
> TPut 9 616794.00 ( 0.00%) 595553.00 ( -3.44%) 671279.00 (
8.83%) 676159.00 ( 9.62%) 725607.00 ( 17.64%)
> TPut 10 613508.00 ( 0.00%) 572539.00 ( -6.68%) 622864.00 (
1.53%) 645993.00 ( 5.29%) 701802.00 ( 14.39%)
> TPut 11 553114.00 ( 0.00%) 559714.00 ( 1.19%) 598509.00 (
8.21%) 623383.00 ( 12.70%) 683191.00 ( 23.52%)
> TPut 12 514392.00 ( 0.00%) 538174.00 ( 4.62%) 570506.00 (
10.91%) 567867.00 ( 10.40%) 655066.00 ( 27.35%)
> TPut 13 520368.00 ( 0.00%) 539965.00 ( 3.77%) 548718.00 (
5.45%) 561531.00 ( 7.91%) 636424.00 ( 22.30%)
> TPut 14 487145.00 ( 0.00%) 538805.00 ( 10.60%) 539771.00 (
10.80%) 562090.00 ( 15.38%) 626705.00 ( 28.65%)
> TPut 15 487369.00 ( 0.00%) 538084.00 ( 10.41%) 537005.00 (
10.18%) 547854.00 ( 12.41%) 617822.00 ( 26.77%)
> TPut 16 483233.00 ( 0.00%) 523202.00 ( 8.27%) 546002.00 (
12.99%) 537954.00 ( 11.32%) 600551.00 ( 24.28%)
> TPut 17 474813.00 ( 0.00%) 521124.00 ( 9.75%) 537380.00 (
13.18%) 530475.00 ( 11.72%) 588110.00 ( 23.86%)
> TPut 18 464974.00 ( 0.00%) 512043.00 ( 10.12%) 522971.00 (
12.47%) 512125.00 ( 10.14%) 583410.00 ( 25.47%)
> TPut 19 466035.00 ( 0.00%) 510509.00 ( 9.54%) 510246.00 (
9.49%) 495061.00 ( 6.23%) 563517.00 ( 20.92%)
> TPut 20 469546.00 ( 0.00%) 533477.00 ( 13.62%) 506984.00 (
7.97%) 509311.00 ( 8.47%) 566237.00 ( 20.59%)
> TPut 21 473232.00 ( 0.00%) 516001.00 ( 9.04%) 510657.00 (
7.91%) 501234.00 ( 5.92%) 552443.00 ( 16.74%)
> TPut 22 466311.00 ( 0.00%) 520126.00 ( 11.54%) 511023.00 (
9.59%) 517783.00 ( 11.04%) 547750.00 ( 17.46%)
> TPut 23 469778.00 ( 0.00%) 502374.00 ( 6.94%) 501693.00 (
6.79%) 484714.00 ( 3.18%) 539841.00 ( 14.91%)
> TPut 24 432456.00 ( 0.00%) 484657.00 ( 12.07%) 469175.00 (
8.49%) 478945.00 ( 10.75%) 520801.00 ( 20.43%)
> TPut 25 456578.00 ( 0.00%) 472426.00 ( 3.47%) 473620.00 (
3.73%) 510179.00 ( 11.74%) 532794.00 ( 16.69%)
> TPut 26 446124.00 ( 0.00%) 480384.00 ( 7.68%) 496298.00 (
11.25%) 524318.00 ( 17.53%) 533854.00 ( 19.66%)
> TPut 27 453526.00 ( 0.00%) 486191.00 ( 7.20%) 485971.00 (
7.15%) 511205.00 ( 12.72%) 540509.00 ( 19.18%)
> TPut 28 445334.00 ( 0.00%) 472217.00 ( 6.04%) 485656.00 (
9.05%) 539016.00 ( 21.04%) 533080.00 ( 19.70%)
> TPut 29 433645.00 ( 0.00%) 478352.00 ( 10.31%) 493338.00 (
13.77%) 528193.00 ( 21.80%) 527570.00 ( 21.66%)
> TPut 30 442288.00 ( 0.00%) 478694.00 ( 8.23%) 475808.00 (
7.58%) 510166.00 ( 15.35%) 531928.00 ( 20.27%)
> TPut 31 457068.00 ( 0.00%) 469471.00 ( 2.71%) 477855.00 (
4.55%) 507183.00 ( 10.96%) 535880.00 ( 17.24%)
> TPut 32 448218.00 ( 0.00%) 461428.00 ( 2.95%) 447356.00 ( -
0.19%) 505068.00 ( 12.68%) 533156.00 ( 18.95%)
> TPut 33 454658.00 ( 0.00%) 462630.00 ( 1.75%) 478432.00 (
5.23%) 499986.00 ( 9.97%) 541424.00 ( 19.08%)
> TPut 34 443172.00 ( 0.00%) 460092.00 ( 3.82%) 490689.00 (
10.72%) 496102.00 ( 11.94%) 543272.00 ( 22.59%)
> TPut 35 467423.00 ( 0.00%) 474896.00 ( 1.60%) 463082.00 ( -
0.93%) 518674.00 ( 10.96%) 545308.00 ( 16.66%)
> TPut 36 449501.00 ( 0.00%) 485830.00 ( 8.08%) 464392.00 (
3.31%) 502509.00 ( 11.79%) 536209.00 ( 19.29%)
> TPut 37 436685.00 ( 0.00%) 477811.00 ( 9.42%) 477439.00 (
9.33%) 479705.00 ( 9.85%) 532803.00 ( 22.01%)
> TPut 38 423038.00 ( 0.00%) 498736.00 ( 17.89%) 470517.00 (
11.22%) 478765.00 ( 13.17%) 531971.00 ( 25.75%)
> TPut 39 440740.00 ( 0.00%) 500607.00 ( 13.58%) 451356.00 (
2.41%) 471716.00 ( 7.03%) 533603.00 ( 21.07%)
> TPut 40 442734.00 ( 0.00%) 489986.00 ( 10.67%) 472626.00 (
6.75%) 482956.00 ( 9.08%) 530081.00 ( 19.73%)
> TPut 41 408608.00 ( 0.00%) 493606.00 ( 20.80%) 458076.00 (
12.11%) 478196.00 ( 17.03%) 531308.00 ( 30.03%)
> TPut 42 421514.00 ( 0.00%) 460141.00 ( 9.16%) 440369.00 (
4.47%) 476347.00 ( 13.01%) 522991.00 ( 24.07%)
> TPut 43 428448.00 ( 0.00%) 449539.00 ( 4.92%) 443703.00 (
3.56%) 450863.00 ( 5.23%) 532388.00 ( 24.26%)
> TPut 44 422445.00 ( 0.00%) 474731.00 ( 12.38%) 427386.00 (
1.17%) 458325.00 ( 8.49%) 527653.00 ( 24.90%)
> TPut 45 420369.00 ( 0.00%) 467562.00 ( 11.23%) 441273.00 (
4.97%) 452040.00 ( 7.53%) 523272.00 ( 24.48%)
> TPut 46 444065.00 ( 0.00%) 447816.00 ( 0.84%) 425015.00 ( -
4.29%) 446984.00 ( 0.66%) 513709.00 ( 15.68%)
> TPut 47 426643.00 ( 0.00%) 465344.00 ( 9.07%) 440096.00 (
3.15%) 438814.00 ( 2.85%) 512894.00 ( 20.22%)
> TPut 48 413695.00 ( 0.00%) 461300.00 ( 11.51%) 433526.00 (
4.79%) 450650.00 ( 8.93%) 514147.00 ( 24.28%)
>
> This is looking much better overall and again the impact of the continual
> retries of migration makes a big difference. It indicates that it would
> be worth investigating why the retries are even necessary. It would be
> unfortunate if NUMA scheduling was constantly battling the load balancer.
>
> specjbb Peaks
> 3.11.0
3.11.0 3.11.0 3.11.0
3.11.0
> account-v8r20 falsedetect-
v8r33 skipshared-v8r33 noatomics-v8r33 periodretry-
v8r33
> Expctd Warehouse 12.00 ( 0.00%) 12.00 (
0.00%) 12.00 ( 0.00%) 12.00 ( 0.00%) 12.00 (
0.00%)
> Expctd Peak Bops 553114.00 ( 0.00%) 559714.00 ( 1.19%)
598509.00 ( 8.21%) 623383.00 ( 12.70%) 683191.00 ( 23.52%)
> Actual Warehouse 10.00 ( 0.00%) 9.00 (-
10.00%) 8.00 (-20.00%) 8.00 (-20.00%) 10.00
( 0.00%)
> Actual Peak Bops 616794.00 ( 0.00%) 647330.00 ( 4.95%)
720879.00 ( 16.88%) 706421.00 ( 14.53%) 725607.00 ( 17.64%)
> SpecJBB Bops 477666.00 ( 0.00%) 521426.00 ( 9.16%)
524010.00 ( 9.70%) 523610.00 ( 9.62%) 584513.00 ( 22.37%)
> SpecJBB Bops/JVM 119417.00 ( 0.00%) 130357.00 ( 9.16%)
131003.00 ( 9.70%) 130903.00 ( 9.62%) 146128.00 ( 22.37%)
>
> Speaks for itself really, looks great.
>
> 3.11.0 3.11.0 3.11.0 3.11.0 3.11.0
> account-v8r20falsedetect-v8r33skipshared-v8r33noatomics-
v8r33periodretry-v8r33
> User 466719.69 478006.22 476399.23 476733.11 476517.65
> System 11049.55 913.00 1429.31 1317.87 994.02
> Elapsed 10381.80 10415.18 10384.39 10383.33 10393.91
>
> and system CPU usage is still way down so now we are seeing large
improvements for less work.
>
> 3.11.0 3.11.0 3.11.0
3.11.0 3.11.0
> account-v8r20falsedetect-v8r33skipshared-
v8r33noatomics-v8r33periodretry-v8r33
> Compaction cost 1432168 77123 127225
119169 66598
> NUMA PTE updates 505320169 9237242 44679605
40306037 40633804
> NUMA hint faults 67707706 9240325 44739890
40798082 40521421
> NUMA hint local faults 22183991 3313857 14359951
13135180 25014367
> NUMA hint local percent 32 35 32
32 61
> NUMA pages migrated 1379738662 74299705 122568192
114806428 64160571
> AutoNUMA cost 368290 47677 226341
206453 204110
>
> That migrate retry thing does wonders for the local fault percentage.
Really worth checking out
> why tasks are getting migrated off their preferred node.
>
> The NAS parallel benchmarks had not run at the time of writing but I
decided not to delay releasing
> this anyway.
>
> Overall this series is now looking much better. The hotplug handling part
> is still missing but hopefully with Peter overhead reduction efforts it
> will not impair the results much. The primary curiousity for me is why
> the period retry makes such a difference because in my mind it implies
> the load balancer and numa scheduler are working against each other for
> some reason. Even without that answer I think this should get some time
> in tip when the hotplug part is filled in.
>
> Documentation/sysctl/kernel.txt | 76 ++
> arch/x86/mm/numa.c | 6 +-
> fs/exec.c | 1 +
> fs/proc/array.c | 2 +
> include/linux/mempolicy.h | 1 +
> include/linux/migrate.h | 7 +-
> include/linux/mm.h | 118 ++-
> include/linux/mm_types.h | 17 +-
> include/linux/page-flags-layout.h | 28 +-
> include/linux/sched.h | 63 +-
> include/linux/sched/sysctl.h | 1 -
> include/linux/stop_machine.h | 1 +
> kernel/bounds.c | 4 +
> kernel/fork.c | 5 +-
> kernel/sched/core.c | 197 ++++-
> kernel/sched/debug.c | 60 +-
> kernel/sched/fair.c | 1608 +++++++++++++++++++++++++++++--
------
> kernel/sched/features.h | 19 +-
> kernel/sched/idle_task.c | 2 +-
> kernel/sched/rt.c | 5 +-
> kernel/sched/sched.h | 27 +-
> kernel/sched/stop_task.c | 2 +-
> kernel/stop_machine.c | 272 ++++---
> kernel/sysctl.c | 21 +-
> lib/vsprintf.c | 5 +
> mm/huge_memory.c | 119 ++-
> mm/memory.c | 158 ++--
> mm/mempolicy.c | 82 +-
> mm/migrate.c | 49 +-
> mm/mm_init.c | 18 +-
> mm/mmzone.c | 14 +-
> mm/mprotect.c | 65 +-
> mm/page_alloc.c | 4 +-
> 33 files changed, 2307 insertions(+), 750 deletions(-)
>
Hi Mel,
Attempts to boot large KVM guest with the host and the guest running V8
patch set (+ PeterZ's fix for race in migrate_swap_top) results in a
guest OS panic (below or the details). Sometimes the guest boots up but
dies within mins. (The problem doesn't happen if the guest is running the
base 3.11 kernel).
Smaller sized guests (i tried upto 40vcpus) boot up and seem to run fine.
Thanks
Vinod
/usr/local/bin/qemu-system-x86_64 \
-enable-kvm \
-cpu host \
-name vm1 \
-smp sockets=8,cores=10,threads=1 \
-numa node,nodeid=0,cpus=0-9,mem=128g \
-numa node,nodeid=1,cpus=10-19,mem=128g \
-numa node,nodeid=2,cpus=20-29,mem=128g \
-numa node,nodeid=3,cpus=30-39,mem=128g \
-numa node,nodeid=4,cpus=40-49,mem=128g \
-numa node,nodeid=5,cpus=50-59,mem=128g \
-numa node,nodeid=6,cpus=60-69,mem=128g \
-numa node,nodeid=7,cpus=70-79,mem=128g \
-m 1048576 \
-chardev
socket,id=charmonitor,path=/var/lib/libvirt/qemu/vm1.monitor,server,nowait
\
-mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc -no-
shutdown \
-drive file=/dev/libvirt_lvm2/vm1,if=none,id=drive-virtio-
disk0,format=raw,cache=none,aio=native \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x5,drive=drive-virtio-
disk0,id=virtio-disk0,bootindex=1 \
-serial stdio \
-monitor stdio \
-netdev tap,id=hostnet1,script=no,downscript=no,vhost=on,ifname=tap1 \
-device virtio-net-pci,netdev=hostnet1,id=net1,mac=52:54:00:71:01:01 \
-vnc :1
guest_panic
BUG: unable to handle kernel paging request at ffff890010e563a0
IP: [<ffffffff81293644>] ioread32_rep+0x44/0x60
PGD 1edf067 PUD 1ee0067 PMD 8000010010e001e3
Oops: 000b [#1] SMP
Modules linked in: ata_piix(F) dm_mirror(F) dm_region_hash(F) dm_log(F)
dm_mod(F)
CPU: 71 PID: 447 Comm: kworker/71:1 Tainted: GF W 3.11.0mg8+ #4
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
Workqueue: ata_sff ata_sff_pio_task
task: ffff890011ab3240 ti: ffff890011ab4000 task.ti: ffff890011ab4000
RIP: 0010:[<ffffffff81293644>] [<ffffffff81293644>] ioread32_rep+0x44/0x60
RSP: 0018:ffff890011ab5cc8 EFLAGS: 00000202
RAX: 0000000000000170 RBX: 0000000000000200 RCX: 0000000000000080
RDX: 0000000000000170 RSI: ffff890010e563a0 RDI: ffff890010e563a0
RBP: ffff890011ab5cc8 R08: 6db6db6db6db6db7 R09: dbff456b0e0540b8
R10: 0000000000000000 R11: 0000000000000000 R12: ffff890010e563a0
R13: 0000000000010170 R14: 0000000000000004 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff89001fc20000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: ffff890010e563a0 CR3: 0000010012918000 CR4: 00000000000007e0
Stack:
ffff890011ab5d28 ffffffff813e040a ffff890011ab5ce8 ffffffff8105060f
ffff890011ab5cf8 ffff890011ab3290 ffff89001fc34040 ffff890010e55b80
0000000000000000 ffffea03803b22d0 0000000000000004 0000000000000058
Call Trace:
[<ffffffff813e040a>] ata_sff_data_xfer32+0x7a/0x130
[<ffffffff8105060f>] ? kvm_clock_read+0x1f/0x30
[<ffffffff813df43e>] ata_pio_sector+0xbe/0x130
[<ffffffff813df52d>] ata_pio_sectors+0x7d/0xc0
[<ffffffff813e1487>] ata_sff_hsm_move+0x207/0x5e0
[<ffffffff813e1912>] ata_sff_pio_task+0xb2/0x190
[<ffffffff8107cc59>] process_one_work+0x189/0x490
^[%G [<ffffffff8107def0>] worker_thread+0x120/0x3a0
[<ffffffff8107ddd0>] ? manage_workers+0x170/0x170
[<ffffffff81083f9e>] kthread+0xce/0xe0
[<ffffffff81083ed0>] ? kthread_freezable_should_stop+0x70/0x70
[<ffffffff815895ac>] ret_from_fork+0x7c/0xb0
[<ffffffff81083ed0>] ? kthread_freezable_should_stop+0x70/0x70
Code: 54 96 04 0f 1f 40 00 8b 07 89 06 48 83 c6 04 48 39 d6 75 f3 c9 c3 90
48 81 ff 00 00 01 00 76 17 0f b7 c7 48 89 d1 48 89 f7 89 c2 <f3> 6d c9 c3
0f 1f 84 00 00 00 00 00 48 c7 c6 b5 46 80 81 e8 f4
RIP [<ffffffff81293644>] ioread32_rep+0x44/0x60
RSP <ffff890011ab5cc8>
CR2: ffff890010e563a0
---[ end trace e41683dcbc01154b ]---
BUG: unable to handle kernel paging request at ffffffffffffffd8
IP: [<ffffffff81083850>] kthread_data+0x10/0x20
PGD 1a0f067 PUD 1a11067 PMD 0
Oops: 0000 [#2] SMP
Modules linked in: ata_piix(F) dm_mirror(F) dm_region_hash(F) dm_log(F)
dm_mod(F)
CPU: 71 PID: 447 Comm: kworker/71:1 Tainted: GF D W 3.11.0mg8+ #4
Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
task: ffff890011ab3240 ti: ffff890011ab4000 task.ti: ffff890011ab4000
RIP: 0010:[<ffffffff81083850>] [<ffffffff81083850>] kthread_data+0x10/0x20
RSP: 0018:ffff890011ab58f8 EFLAGS: 00010092
RAX: 0000000000000000 RBX: 0000000000000047 RCX: ffffffff81d52fe0
RDX: 0000000000000000 RSI: 0000000000000047 RDI: ffff890011ab3240
RBP: ffff890011ab58f8 R08: 0000000000000000 R09: dead000000200200
R10: 0000000000031b59 R11: 0000000000000000 R12: 0000000000000047
R13: ffff890011ab3820 R14: 0000000000000001 R15: 000000000000000b
FS: 0000000000000000(0000) GS:ffff89001fc20000(0000)
knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000028 CR3: 0000010012918000 CR4: 00000000000007e0
Stack:
ffff890011ab5918 ffffffff8107a565 ffff890011ab5918 ffff89001fc34040
ffff890011ab59a8 ffffffff8157ea53 ffff890011ab5fd8 0000000000014040
ffff890011ab4010 0000000000014040 0000000000014040 0000000000014040
Call Trace:
[<ffffffff8107a565>] wq_worker_sleeping+0x15/0xa0
[<ffffffff8157ea53>] __schedule+0x5c3/0x710
[<ffffffff81063142>] ? release_task+0xc2/0x130
[<ffffffff8157ed79>] schedule+0x29/0x70
[<ffffffff81063f05>] do_exit+0x2d5/0x480
[<ffffffff81581a61>] oops_end+0xb1/0x100
[<ffffffff81055c3e>] no_context+0x11e/0x1f0
[<ffffffff81055e3d>] __bad_area_nosemaphore+0x12d/0x230
[<ffffffff81055f53>] bad_area_nosemaphore+0x13/0x20
[<ffffffff815847c9>] __do_page_fault+0xd9/0x480
[<ffffffff8110ab62>] ? __buffer_unlock_commit+0x12/0x20
[<ffffffff81584b7e>] do_page_fault+0xe/0x10
[<ffffffff81584228>] do_async_page_fault+0x28/0xa0
[<ffffffff81580ec8>] async_page_fault+0x28/0x30
[<ffffffff81293644>] ? ioread32_rep+0x44/0x60
[<ffffffff813e040a>] ata_sff_data_xfer32+0x7a/0x130
[<ffffffff8105060f>] ? kvm_clock_read+0x1f/0x30
[<ffffffff813df43e>] ata_pio_sector+0xbe/0x130
[<ffffffff813df52d>] ata_pio_sectors+0x7d/0xc0
[<ffffffff813e1487>] ata_sff_hsm_move+0x207/0x5e0
[<ffffffff813e1912>] ata_sff_pio_task+0xb2/0x190
[<ffffffff8107cc59>] process_one_work+0x189/0x490
[<ffffffff8107def0>] worker_thread+0x120/0x3a0
[<ffffffff8107ddd0>] ? manage_workers+0x170/0x170
[<ffffffff81083f9e>] kthread+0xce/0xe0
[<ffffffff81083ed0>] ? kthread_freezable_should_stop+0x70/0x70
[<ffffffff815895ac>] ret_from_fork+0x7c/0xb0
[<ffffffff81083ed0>] ? kthread_freezable_should_stop+0x70/0x70
Code: 88 05 00 00 48 8b 40 c8 c9 48 c1 e8 02 83 e0 01 c3 66 2e 0f 1f 84 00
00 00 00 00 55 48 89 e5 66 66 66 66 90 48 8b 87 88 05 00 00 <48> 8b 40 d8
c9 c3 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 66
RIP [<ffffffff81083850>] kthread_data+0x10/0x20
RSP <ffff890011ab58f8>
CR2: ffffffffffffffd8
---[ end trace e41683dcbc01154c ]---
Fixing recursive fault but reboot is needed!
prev parent reply other threads:[~2013-10-24 4:40 UTC|newest]
Thread overview: 136+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-27 13:26 [PATCH 0/63] Basic scheduler support for automatic NUMA balancing V8 Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 01/63] sched: monolithic code dump of what is being pushed upstream Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 02/63] mm: numa: Document automatic NUMA balancing sysctls Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 03/63] sched, numa: Comment fixlets Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 04/63] mm: numa: Do not account for a hinting fault if we raced Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 05/63] mm: Wait for THP migrations to complete during NUMA hinting faults Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 06/63] mm: Prevent parallel splits during THP migration Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 07/63] mm: Account for a THP NUMA hinting update as one PTE update Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 08/63] mm: Do not flush TLB during protection change if !pte_present && !migration_entry Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 09/63] mm: Only flush TLBs if a transhuge PMD is modified for NUMA pte scanning Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 10/63] mm: numa: Sanitize task_numa_fault() callsites Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 11/63] mm: Close races between THP migration and PMD numa clearing Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-30 8:52 ` Mel Gorman
2013-09-30 8:52 ` Mel Gorman
2013-09-30 14:10 ` Rik van Riel
2013-09-30 14:10 ` Rik van Riel
2013-09-30 15:18 ` Mel Gorman
2013-09-30 15:18 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 12/63] mm: numa: Do not migrate or account for hinting faults on the zero page Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 13/63] sched: numa: Mitigate chance that same task always updates PTEs Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:26 ` [PATCH 14/63] sched: numa: Continue PTE scanning even if migrate rate limited Mel Gorman
2013-09-27 13:26 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 15/63] Revert "mm: sched: numa: Delay PTE scanning until a task is scheduled on a new node" Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 16/63] sched: numa: Initialise numa_next_scan properly Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 17/63] sched: Set the scan rate proportional to the memory usage of the task being scanned Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 18/63] sched: numa: Slow scan rate if no NUMA hinting faults are being recorded Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 19/63] sched: Track NUMA hinting faults on per-node basis Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 20/63] sched: Select a preferred node with the most numa hinting faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 21/63] sched: Update NUMA hinting faults once per scan Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 22/63] sched: Favour moving tasks towards the preferred node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 23/63] sched: Resist moving tasks towards nodes with fewer hinting faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 24/63] sched: Reschedule task on preferred NUMA node once selected Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 25/63] sched: Add infrastructure for split shared/private accounting of NUMA hinting faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 26/63] sched: Check current->mm before allocating NUMA faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 27/63] mm: numa: Scan pages with elevated page_mapcount Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 28/63] sched: Remove check that skips small VMAs Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 29/63] sched: Set preferred NUMA node based on number of private faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-29 2:05 ` Figo.zhang
2013-09-27 13:27 ` [PATCH 30/63] sched: Do not migrate memory immediately after switching node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 31/63] mm: numa: only unmap migrate-on-fault VMAs Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 32/63] sched: Avoid overloading CPUs on a preferred NUMA node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 33/63] sched: Retry migration of tasks to CPU on a preferred node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 34/63] sched: numa: increment numa_migrate_seq when task runs in correct location Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 35/63] sched: numa: Do not trap hinting faults for shared libraries Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 36/63] mm: numa: Only trap pmd hinting faults if we would otherwise trap PTE faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 37/63] stop_machine: Introduce stop_two_cpus() Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 38/63] sched: Introduce migrate_swap() Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 39/63] sched: numa: Use a system-wide search to find swap/migration candidates Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 40/63] sched: numa: Favor placing a task on the preferred node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 41/63] sched: numa: fix placement of workloads spread across multiple nodes Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 42/63] mm: numa: Change page last {nid,pid} into {cpu,pid} Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 43/63] sched: numa: Use {cpu, pid} to create task groups for shared faults Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 44/63] sched: numa: Report a NUMA task group ID Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 45/63] mm: numa: copy cpupid on page migration Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 46/63] mm: numa: Do not group on RO pages Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 47/63] mm: numa: Do not batch handle PMD pages Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 48/63] sched: numa: stay on the same node if CLONE_VM Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 49/63] sched: numa: use group fault statistics in numa placement Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 50/63] sched: numa: call task_numa_free from do_execve Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 51/63] sched: numa: Prevent parallel updates to group stats during placement Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 52/63] sched: numa: add debugging Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 53/63] sched: numa: Decide whether to favour task or group weights based on swap candidate relationships Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 54/63] sched: numa: fix task or group comparison Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 55/63] sched: numa: Avoid migrating tasks that are placed on their preferred node Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 56/63] sched: numa: be more careful about joining numa groups Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 57/63] sched: numa: Take false sharing into account when adapting scan rate Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 58/63] sched: numa: adjust scan rate in task_numa_placement Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 59/63] sched: numa: Remove the numa_balancing_scan_period_reset sysctl Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 60/63] mm: numa: revert temporarily disabling of NUMA migration Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 61/63] sched: numa: skip some page migrations after a shared fault Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 62/63] sched: numa: use unsigned longs for numa group fault stats Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-09-27 13:27 ` [PATCH 63/63] sched: numa: periodically retry task_numa_migrate Mel Gorman
2013-09-27 13:27 ` Mel Gorman
2013-10-24 4:32 ` Chegu Vinod [this message]
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