From: Peter Zijlstra <a.p.zijlstra@chello.nl> To: Rik van Riel <riel@redhat.com>, Andrea Arcangeli <aarcange@redhat.com>, Mel Gorman <mgorman@suse.de>, Johannes Weiner <hannes@cmpxchg.org>, Thomas Gleixner <tglx@linutronix.de>, Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org> Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@kernel.org> Subject: [PATCH 28/31] sched, numa, mm: Implement constant, per task Working Set Sampling (WSS) rate Date: Thu, 25 Oct 2012 14:16:45 +0200 [thread overview] Message-ID: <20121025124834.592333415@chello.nl> (raw) In-Reply-To: 20121025121617.617683848@chello.nl [-- Attachment #1: 0028-sched-numa-mm-Implement-constant-per-task-Working-Se.patch --] [-- Type: text/plain, Size: 6293 bytes --] Previously, to probe the working set of a task, we'd use a very simple and crude method: mark all of its address space PROT_NONE. That method has various (obvious) disadvantages: - it samples the working set at dissimilar rates, giving some tasks a sampling quality advantage over others. - creates performance problems for tasks with very large working sets - over-samples processes with large address spaces but which only very rarely execute Improve that method by keeping a rotating offset into the address space that marks the current position of the scan, and advance it by a constant rate (in a CPU cycles execution proportional manner). If the offset reaches the last mapped address of the mm then it then it starts over at the first address. The per-task nature of the working set sampling functionality in this tree allows such constant rate, per task, execution-weight proportional sampling of the working set, with an adaptive sampling interval/frequency that goes from once per 100 msecs up to just once per 1.6 seconds. The current sampling volume is 256 MB per interval. As tasks mature and converge their working set, so does the sampling rate slow down to just a trickle, 256 MB per 1.6 seconds of CPU time executed. This, beyond being adaptive, also rate-limits rarely executing systems and does not over-sample on overloaded systems. [ In AutoNUMA speak, this patch deals with the effective sampling rate of the 'hinting page fault'. AutoNUMA's scanning is currently rate-limited, but it is also fundamentally single-threaded, executing in the knuma_scand kernel thread, so the limit in AutoNUMA is global and does not scale up with the number of CPUs, nor does it scan tasks in an execution proportional manner. So the idea of rate-limiting the scanning was first implemented in the AutoNUMA tree via a global rate limit. This patch goes beyond that by implementing an execution rate proportional working set sampling rate that is not implemented via a single global scanning daemon. ] [ Dan Carpenter pointed out a possible NULL pointer dereference in the first version of this patch. ] Based-on-idea-by: Andrea Arcangeli <aarcange@redhat.com> Bug-Found-By: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Rik van Riel <riel@redhat.com> [ Wrote changelog and fixed bug. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> --- include/linux/mm_types.h | 1 + include/linux/sched.h | 1 + kernel/sched/fair.c | 43 ++++++++++++++++++++++++++++++------------- kernel/sysctl.c | 7 +++++++ 4 files changed, 39 insertions(+), 13 deletions(-) Index: tip/include/linux/mm_types.h =================================================================== --- tip.orig/include/linux/mm_types.h +++ tip/include/linux/mm_types.h @@ -405,6 +405,7 @@ struct mm_struct { #endif #ifdef CONFIG_SCHED_NUMA unsigned long numa_next_scan; + unsigned long numa_scan_offset; int numa_scan_seq; #endif struct uprobes_state uprobes_state; Index: tip/include/linux/sched.h =================================================================== --- tip.orig/include/linux/sched.h +++ tip/include/linux/sched.h @@ -2022,6 +2022,7 @@ extern enum sched_tunable_scaling sysctl extern unsigned int sysctl_sched_numa_scan_period_min; extern unsigned int sysctl_sched_numa_scan_period_max; +extern unsigned int sysctl_sched_numa_scan_size; extern unsigned int sysctl_sched_numa_settle_count; #ifdef CONFIG_SCHED_DEBUG Index: tip/kernel/sched/fair.c =================================================================== --- tip.orig/kernel/sched/fair.c +++ tip/kernel/sched/fair.c @@ -829,8 +829,9 @@ static void account_numa_dequeue(struct /* * numa task sample period in ms: 5s */ -unsigned int sysctl_sched_numa_scan_period_min = 5000; -unsigned int sysctl_sched_numa_scan_period_max = 5000*16; +unsigned int sysctl_sched_numa_scan_period_min = 100; +unsigned int sysctl_sched_numa_scan_period_max = 100*16; +unsigned int sysctl_sched_numa_scan_size = 256; /* MB */ /* * Wait for the 2-sample stuff to settle before migrating again @@ -904,6 +905,9 @@ void task_numa_work(struct callback_head unsigned long migrate, next_scan, now = jiffies; struct task_struct *p = current; struct mm_struct *mm = p->mm; + struct vm_area_struct *vma; + unsigned long offset, end; + long length; WARN_ON_ONCE(p != container_of(work, struct task_struct, numa_work)); @@ -930,18 +934,31 @@ void task_numa_work(struct callback_head if (cmpxchg(&mm->numa_next_scan, migrate, next_scan) != migrate) return; - ACCESS_ONCE(mm->numa_scan_seq)++; - { - struct vm_area_struct *vma; - - down_write(&mm->mmap_sem); - for (vma = mm->mmap; vma; vma = vma->vm_next) { - if (!vma_migratable(vma)) - continue; - change_protection(vma, vma->vm_start, vma->vm_end, vma_prot_none(vma), 0); - } - up_write(&mm->mmap_sem); + offset = mm->numa_scan_offset; + length = sysctl_sched_numa_scan_size; + length <<= 20; + + down_write(&mm->mmap_sem); + vma = find_vma(mm, offset); + if (!vma) { + ACCESS_ONCE(mm->numa_scan_seq)++; + offset = 0; + vma = mm->mmap; + } + for (; vma && length > 0; vma = vma->vm_next) { + if (!vma_migratable(vma)) + continue; + + offset = max(offset, vma->vm_start); + end = min(ALIGN(offset + length, HPAGE_SIZE), vma->vm_end); + length -= end - offset; + + change_prot_none(vma, offset, end); + + offset = end; } + mm->numa_scan_offset = offset; + up_write(&mm->mmap_sem); } /* Index: tip/kernel/sysctl.c =================================================================== --- tip.orig/kernel/sysctl.c +++ tip/kernel/sysctl.c @@ -367,6 +367,13 @@ static struct ctl_table kern_table[] = { .proc_handler = proc_dointvec, }, { + .procname = "sched_numa_scan_size_mb", + .data = &sysctl_sched_numa_scan_size, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { .procname = "sched_numa_settle_count", .data = &sysctl_sched_numa_settle_count, .maxlen = sizeof(unsigned int),
WARNING: multiple messages have this Message-ID (diff)
From: Peter Zijlstra <a.p.zijlstra@chello.nl> To: Rik van Riel <riel@redhat.com>, Andrea Arcangeli <aarcange@redhat.com>, Mel Gorman <mgorman@suse.de>, Johannes Weiner <hannes@cmpxchg.org>, Thomas Gleixner <tglx@linutronix.de>, Linus Torvalds <torvalds@linux-foundation.org>, Andrew Morton <akpm@linux-foundation.org> Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org, Peter Zijlstra <a.p.zijlstra@chello.nl>, Ingo Molnar <mingo@kernel.org> Subject: [PATCH 28/31] sched, numa, mm: Implement constant, per task Working Set Sampling (WSS) rate Date: Thu, 25 Oct 2012 14:16:45 +0200 [thread overview] Message-ID: <20121025124834.592333415@chello.nl> (raw) In-Reply-To: 20121025121617.617683848@chello.nl [-- Attachment #1: 0028-sched-numa-mm-Implement-constant-per-task-Working-Se.patch --] [-- Type: text/plain, Size: 6518 bytes --] Previously, to probe the working set of a task, we'd use a very simple and crude method: mark all of its address space PROT_NONE. That method has various (obvious) disadvantages: - it samples the working set at dissimilar rates, giving some tasks a sampling quality advantage over others. - creates performance problems for tasks with very large working sets - over-samples processes with large address spaces but which only very rarely execute Improve that method by keeping a rotating offset into the address space that marks the current position of the scan, and advance it by a constant rate (in a CPU cycles execution proportional manner). If the offset reaches the last mapped address of the mm then it then it starts over at the first address. The per-task nature of the working set sampling functionality in this tree allows such constant rate, per task, execution-weight proportional sampling of the working set, with an adaptive sampling interval/frequency that goes from once per 100 msecs up to just once per 1.6 seconds. The current sampling volume is 256 MB per interval. As tasks mature and converge their working set, so does the sampling rate slow down to just a trickle, 256 MB per 1.6 seconds of CPU time executed. This, beyond being adaptive, also rate-limits rarely executing systems and does not over-sample on overloaded systems. [ In AutoNUMA speak, this patch deals with the effective sampling rate of the 'hinting page fault'. AutoNUMA's scanning is currently rate-limited, but it is also fundamentally single-threaded, executing in the knuma_scand kernel thread, so the limit in AutoNUMA is global and does not scale up with the number of CPUs, nor does it scan tasks in an execution proportional manner. So the idea of rate-limiting the scanning was first implemented in the AutoNUMA tree via a global rate limit. This patch goes beyond that by implementing an execution rate proportional working set sampling rate that is not implemented via a single global scanning daemon. ] [ Dan Carpenter pointed out a possible NULL pointer dereference in the first version of this patch. ] Based-on-idea-by: Andrea Arcangeli <aarcange@redhat.com> Bug-Found-By: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Rik van Riel <riel@redhat.com> [ Wrote changelog and fixed bug. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> --- include/linux/mm_types.h | 1 + include/linux/sched.h | 1 + kernel/sched/fair.c | 43 ++++++++++++++++++++++++++++++------------- kernel/sysctl.c | 7 +++++++ 4 files changed, 39 insertions(+), 13 deletions(-) Index: tip/include/linux/mm_types.h =================================================================== --- tip.orig/include/linux/mm_types.h +++ tip/include/linux/mm_types.h @@ -405,6 +405,7 @@ struct mm_struct { #endif #ifdef CONFIG_SCHED_NUMA unsigned long numa_next_scan; + unsigned long numa_scan_offset; int numa_scan_seq; #endif struct uprobes_state uprobes_state; Index: tip/include/linux/sched.h =================================================================== --- tip.orig/include/linux/sched.h +++ tip/include/linux/sched.h @@ -2022,6 +2022,7 @@ extern enum sched_tunable_scaling sysctl extern unsigned int sysctl_sched_numa_scan_period_min; extern unsigned int sysctl_sched_numa_scan_period_max; +extern unsigned int sysctl_sched_numa_scan_size; extern unsigned int sysctl_sched_numa_settle_count; #ifdef CONFIG_SCHED_DEBUG Index: tip/kernel/sched/fair.c =================================================================== --- tip.orig/kernel/sched/fair.c +++ tip/kernel/sched/fair.c @@ -829,8 +829,9 @@ static void account_numa_dequeue(struct /* * numa task sample period in ms: 5s */ -unsigned int sysctl_sched_numa_scan_period_min = 5000; -unsigned int sysctl_sched_numa_scan_period_max = 5000*16; +unsigned int sysctl_sched_numa_scan_period_min = 100; +unsigned int sysctl_sched_numa_scan_period_max = 100*16; +unsigned int sysctl_sched_numa_scan_size = 256; /* MB */ /* * Wait for the 2-sample stuff to settle before migrating again @@ -904,6 +905,9 @@ void task_numa_work(struct callback_head unsigned long migrate, next_scan, now = jiffies; struct task_struct *p = current; struct mm_struct *mm = p->mm; + struct vm_area_struct *vma; + unsigned long offset, end; + long length; WARN_ON_ONCE(p != container_of(work, struct task_struct, numa_work)); @@ -930,18 +934,31 @@ void task_numa_work(struct callback_head if (cmpxchg(&mm->numa_next_scan, migrate, next_scan) != migrate) return; - ACCESS_ONCE(mm->numa_scan_seq)++; - { - struct vm_area_struct *vma; - - down_write(&mm->mmap_sem); - for (vma = mm->mmap; vma; vma = vma->vm_next) { - if (!vma_migratable(vma)) - continue; - change_protection(vma, vma->vm_start, vma->vm_end, vma_prot_none(vma), 0); - } - up_write(&mm->mmap_sem); + offset = mm->numa_scan_offset; + length = sysctl_sched_numa_scan_size; + length <<= 20; + + down_write(&mm->mmap_sem); + vma = find_vma(mm, offset); + if (!vma) { + ACCESS_ONCE(mm->numa_scan_seq)++; + offset = 0; + vma = mm->mmap; + } + for (; vma && length > 0; vma = vma->vm_next) { + if (!vma_migratable(vma)) + continue; + + offset = max(offset, vma->vm_start); + end = min(ALIGN(offset + length, HPAGE_SIZE), vma->vm_end); + length -= end - offset; + + change_prot_none(vma, offset, end); + + offset = end; } + mm->numa_scan_offset = offset; + up_write(&mm->mmap_sem); } /* Index: tip/kernel/sysctl.c =================================================================== --- tip.orig/kernel/sysctl.c +++ tip/kernel/sysctl.c @@ -367,6 +367,13 @@ static struct ctl_table kern_table[] = { .proc_handler = proc_dointvec, }, { + .procname = "sched_numa_scan_size_mb", + .data = &sysctl_sched_numa_scan_size, + .maxlen = sizeof(unsigned int), + .mode = 0644, + .proc_handler = proc_dointvec, + }, + { .procname = "sched_numa_settle_count", .data = &sysctl_sched_numa_settle_count, .maxlen = sizeof(unsigned int), -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2012-10-25 13:13 UTC|newest] Thread overview: 271+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-10-25 12:16 [PATCH 00/31] numa/core patches Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 01/31] sched, numa, mm: Make find_busiest_queue() a method Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 02/31] sched, numa, mm: Describe the NUMA scheduling problem formally Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 9:56 ` Mel Gorman 2012-11-01 9:56 ` Mel Gorman 2012-11-01 13:13 ` Rik van Riel 2012-11-01 13:13 ` Rik van Riel 2012-10-25 12:16 ` [PATCH 03/31] mm/thp: Preserve pgprot across huge page split Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 10:22 ` Mel Gorman 2012-11-01 10:22 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 04/31] x86/mm: Introduce pte_accessible() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 20:10 ` Linus Torvalds 2012-10-25 20:10 ` Linus Torvalds 2012-10-26 6:24 ` [PATCH 04/31, v2] " Ingo Molnar 2012-10-26 6:24 ` Ingo Molnar 2012-11-01 10:42 ` [PATCH 04/31] " Mel Gorman 2012-11-01 10:42 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 05/31] x86/mm: Reduce tlb flushes from ptep_set_access_flags() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 20:17 ` Linus Torvalds 2012-10-25 20:17 ` Linus Torvalds 2012-10-26 2:30 ` Rik van Riel 2012-10-26 2:30 ` Rik van Riel 2012-10-26 2:56 ` Linus Torvalds 2012-10-26 2:56 ` Linus Torvalds 2012-10-26 3:57 ` Rik van Riel 2012-10-26 3:57 ` Rik van Riel 2012-10-26 4:23 ` Linus Torvalds 2012-10-26 4:23 ` Linus Torvalds 2012-10-26 6:42 ` Ingo Molnar 2012-10-26 6:42 ` Ingo Molnar 2012-10-26 12:34 ` Michel Lespinasse 2012-10-26 12:34 ` Michel Lespinasse 2012-10-26 12:48 ` Andi Kleen 2012-10-26 12:48 ` Andi Kleen 2012-10-26 13:16 ` Rik van Riel 2012-10-26 13:16 ` Rik van Riel 2012-10-26 13:26 ` Ingo Molnar 2012-10-26 13:26 ` Ingo Molnar 2012-10-26 13:28 ` Ingo Molnar 2012-10-26 13:28 ` Ingo Molnar 2012-10-26 18:44 ` [PATCH 1/3] x86/mm: only do a local TLB flush in ptep_set_access_flags() Rik van Riel 2012-10-26 18:44 ` Rik van Riel 2012-10-26 18:49 ` Linus Torvalds 2012-10-26 18:49 ` Linus Torvalds 2012-10-26 19:16 ` Rik van Riel 2012-10-26 19:16 ` Rik van Riel 2012-10-26 19:18 ` Linus Torvalds 2012-10-26 19:18 ` Linus Torvalds 2012-10-26 19:21 ` Rik van Riel 2012-10-26 19:21 ` Rik van Riel 2012-10-29 15:23 ` Rik van Riel 2012-10-29 15:23 ` Rik van Riel 2012-12-21 9:57 ` trailing flush_tlb_fix_spurious_fault in handle_pte_fault (was Re: [PATCH 1/3] x86/mm: only do a local TLB flush in ptep_set_access_flags()) Vineet Gupta 2012-12-21 9:57 ` Vineet Gupta 2012-10-26 18:45 ` [PATCH 2/3] x86,mm: drop TLB flush from ptep_set_access_flags Rik van Riel 2012-10-26 18:45 ` Rik van Riel 2012-10-26 21:12 ` Alan Cox 2012-10-26 21:12 ` Alan Cox 2012-10-27 3:49 ` Rik van Riel 2012-10-27 3:49 ` Rik van Riel 2012-10-27 10:29 ` Ingo Molnar 2012-10-27 10:29 ` Ingo Molnar 2012-10-27 13:40 ` Rik van Riel 2012-10-27 13:40 ` Rik van Riel 2012-10-29 16:57 ` Borislav Petkov 2012-10-29 16:57 ` Borislav Petkov 2012-10-29 17:06 ` Linus Torvalds 2012-10-29 17:06 ` Linus Torvalds 2012-11-17 14:50 ` Borislav Petkov 2012-11-17 14:50 ` Borislav Petkov 2012-11-17 14:56 ` Linus Torvalds 2012-11-17 14:56 ` Linus Torvalds 2012-11-17 15:17 ` Borislav Petkov 2012-11-17 15:17 ` Borislav Petkov 2012-11-17 15:24 ` Rik van Riel 2012-11-17 15:24 ` Rik van Riel 2012-11-17 21:53 ` Shentino 2012-11-17 21:53 ` Shentino 2012-11-18 15:29 ` Michel Lespinasse 2012-11-18 15:29 ` Michel Lespinasse 2012-10-26 18:46 ` [PATCH 3/3] mm,generic: only flush the local TLB in ptep_set_access_flags Rik van Riel 2012-10-26 18:46 ` Rik van Riel 2012-10-26 18:48 ` Linus Torvalds 2012-10-26 18:48 ` Linus Torvalds 2012-10-26 18:53 ` Linus Torvalds 2012-10-26 18:53 ` Linus Torvalds 2012-10-26 18:57 ` Rik van Riel 2012-10-26 18:57 ` Rik van Riel 2012-10-26 19:16 ` Linus Torvalds 2012-10-26 19:16 ` Linus Torvalds 2012-10-26 19:33 ` [PATCH -v2 " Rik van Riel 2012-10-26 19:33 ` Rik van Riel 2012-10-26 13:23 ` [PATCH 05/31] x86/mm: Reduce tlb flushes from ptep_set_access_flags() Michel Lespinasse 2012-10-26 13:23 ` Michel Lespinasse 2012-10-26 17:01 ` Linus Torvalds 2012-10-26 17:01 ` Linus Torvalds 2012-10-26 17:54 ` Rik van Riel 2012-10-26 17:54 ` Rik van Riel 2012-10-26 18:02 ` Linus Torvalds 2012-10-26 18:02 ` Linus Torvalds 2012-10-26 18:14 ` Rik van Riel 2012-10-26 18:14 ` Rik van Riel 2012-10-26 18:41 ` Linus Torvalds 2012-10-26 18:41 ` Linus Torvalds 2012-10-25 12:16 ` [PATCH 06/31] mm: Only flush the TLB when clearing an accessible pte Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 07/31] sched, numa, mm, s390/thp: Implement pmd_pgprot() for s390 Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 10:49 ` Mel Gorman 2012-11-01 10:49 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 08/31] sched, numa, mm, MIPS/thp: Add pmd_pgprot() implementation Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 09/31] mm/pgprot: Move the pgprot_modify() fallback definition to mm.h Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 10/31] mm/mpol: Remove NUMA_INTERLEAVE_HIT Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 20:58 ` Andi Kleen 2012-10-25 20:58 ` Andi Kleen 2012-10-26 7:59 ` Ingo Molnar 2012-10-26 7:59 ` Ingo Molnar 2012-10-25 12:16 ` [PATCH 11/31] mm/mpol: Make MPOL_LOCAL a real policy Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 10:58 ` Mel Gorman 2012-11-01 10:58 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 12/31] mm/mpol: Add MPOL_MF_NOOP Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 11:10 ` Mel Gorman 2012-11-01 11:10 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 13/31] mm/mpol: Check for misplaced page Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 14/31] mm/mpol: Create special PROT_NONE infrastructure Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 11:51 ` Mel Gorman 2012-11-01 11:51 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 15/31] mm/mpol: Add MPOL_MF_LAZY Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 12:01 ` Mel Gorman 2012-11-01 12:01 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 16/31] numa, mm: Support NUMA hinting page faults from gup/gup_fast Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 17/31] mm/migrate: Introduce migrate_misplaced_page() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 12:20 ` Mel Gorman 2012-11-01 12:20 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 18/31] mm/mpol: Use special PROT_NONE to migrate pages Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 19/31] sched, numa, mm: Introduce tsk_home_node() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 13:48 ` Mel Gorman 2012-11-01 13:48 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 20/31] sched, numa, mm/mpol: Make mempolicy home-node aware Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 13:58 ` Mel Gorman 2012-11-01 13:58 ` Mel Gorman 2012-11-01 14:10 ` Don Morris 2012-11-01 14:10 ` Don Morris 2012-10-25 12:16 ` [PATCH 21/31] sched, numa, mm: Introduce sched_feat_numa() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 14:00 ` Mel Gorman 2012-11-01 14:00 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 22/31] sched, numa, mm: Implement THP migration Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 14:16 ` Mel Gorman 2012-11-01 14:16 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 23/31] sched, numa, mm: Implement home-node awareness Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 15:06 ` Mel Gorman 2012-11-01 15:06 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 24/31] sched, numa, mm: Introduce last_nid in the pageframe Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 15:17 ` Mel Gorman 2012-11-01 15:17 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 25/31] sched, numa, mm/mpol: Add_MPOL_F_HOME Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 26/31] sched, numa, mm: Add fault driven placement and migration policy Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 20:53 ` Linus Torvalds 2012-10-25 20:53 ` Linus Torvalds 2012-10-26 7:15 ` Ingo Molnar 2012-10-26 7:15 ` Ingo Molnar 2012-10-26 13:50 ` Ingo Molnar 2012-10-26 13:50 ` Ingo Molnar 2012-10-26 14:11 ` Peter Zijlstra 2012-10-26 14:11 ` Peter Zijlstra 2012-10-26 14:14 ` Ingo Molnar 2012-10-26 14:14 ` Ingo Molnar 2012-10-26 16:47 ` Linus Torvalds 2012-10-26 16:47 ` Linus Torvalds 2012-10-30 19:23 ` Rik van Riel 2012-10-30 19:23 ` Rik van Riel 2012-11-01 15:40 ` Mel Gorman 2012-11-01 15:40 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 27/31] sched, numa, mm: Add credits for NUMA placement Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra [this message] 2012-10-25 12:16 ` [PATCH 28/31] sched, numa, mm: Implement constant, per task Working Set Sampling (WSS) rate Peter Zijlstra 2012-11-01 15:48 ` Mel Gorman 2012-11-01 15:48 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 29/31] sched, numa, mm: Add NUMA_MIGRATION feature flag Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-25 12:16 ` [PATCH 30/31] sched, numa, mm: Implement slow start for working set sampling Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-11-01 15:52 ` Mel Gorman 2012-11-01 15:52 ` Mel Gorman 2012-10-25 12:16 ` [PATCH 31/31] sched, numa, mm: Add memcg support to do_huge_pmd_numa_page() Peter Zijlstra 2012-10-25 12:16 ` Peter Zijlstra 2012-10-26 9:07 ` [PATCH 00/31] numa/core patches Zhouping Liu 2012-10-26 9:08 ` Peter Zijlstra 2012-10-26 9:08 ` Peter Zijlstra 2012-10-26 9:20 ` Ingo Molnar 2012-10-26 9:20 ` Ingo Molnar 2012-10-26 9:41 ` Zhouping Liu 2012-10-26 9:41 ` Zhouping Liu 2012-10-26 10:20 ` Zhouping Liu 2012-10-26 10:20 ` Zhouping Liu 2012-10-26 10:24 ` Ingo Molnar 2012-10-26 10:24 ` Ingo Molnar 2012-10-28 17:56 ` Johannes Weiner 2012-10-28 17:56 ` Johannes Weiner 2012-10-29 2:44 ` Zhouping Liu 2012-10-29 2:44 ` Zhouping Liu 2012-10-29 6:50 ` [PATCH] sched, numa, mm: Add memcg support to do_huge_pmd_numa_page() Ingo Molnar 2012-10-29 6:50 ` Ingo Molnar 2012-10-29 8:24 ` Johannes Weiner 2012-10-29 8:24 ` Johannes Weiner 2012-10-29 8:36 ` Zhouping Liu 2012-10-29 8:36 ` Zhouping Liu 2012-10-29 11:15 ` Ingo Molnar 2012-10-29 11:15 ` Ingo Molnar 2012-10-30 6:29 ` [PATCH 00/31] numa/core patches Zhouping Liu 2012-10-30 6:29 ` Zhouping Liu 2012-10-31 0:48 ` Johannes Weiner 2012-10-31 0:48 ` Johannes Weiner 2012-10-31 7:26 ` Hugh Dickins 2012-10-31 7:26 ` Hugh Dickins 2012-10-31 13:15 ` Zhouping Liu 2012-10-31 13:15 ` Zhouping Liu 2012-10-31 17:31 ` Hugh Dickins 2012-10-31 17:31 ` Hugh Dickins 2012-11-01 13:41 ` Hugh Dickins 2012-11-01 13:41 ` Hugh Dickins 2012-11-02 3:23 ` Zhouping Liu 2012-11-02 3:23 ` Zhouping Liu 2012-11-02 23:06 ` Hugh Dickins 2012-11-02 23:06 ` Hugh Dickins 2012-10-30 12:20 ` Mel Gorman 2012-10-30 12:20 ` Mel Gorman 2012-10-30 15:28 ` Andrew Morton 2012-10-30 15:28 ` Andrew Morton 2012-10-30 16:59 ` Mel Gorman 2012-10-30 16:59 ` Mel Gorman 2012-11-03 11:04 ` Alex Shi 2012-11-03 11:04 ` Alex Shi 2012-11-03 12:21 ` Mel Gorman 2012-11-03 12:21 ` Mel Gorman 2012-11-10 2:47 ` Alex Shi 2012-11-10 2:47 ` Alex Shi 2012-11-12 9:50 ` Mel Gorman 2012-11-12 9:50 ` Mel Gorman 2012-11-09 8:51 ` Rik van Riel 2012-11-09 8:51 ` Rik van Riel 2012-11-05 17:11 ` Srikar Dronamraju 2012-11-05 17:11 ` Srikar Dronamraju 2012-11-13 17:13 [PATCH 00/31] Latest numa/core patches, v15 Ingo Molnar 2012-11-13 17:13 ` [PATCH 28/31] sched, numa, mm: Implement constant, per task Working Set Sampling (WSS) rate Ingo Molnar 2012-11-13 17:13 ` Ingo Molnar
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=20121025124834.592333415@chello.nl \ --to=a.p.zijlstra@chello.nl \ --cc=aarcange@redhat.com \ --cc=akpm@linux-foundation.org \ --cc=hannes@cmpxchg.org \ --cc=linux-kernel@vger.kernel.org \ --cc=linux-mm@kvack.org \ --cc=mgorman@suse.de \ --cc=mingo@kernel.org \ --cc=riel@redhat.com \ --cc=tglx@linutronix.de \ --cc=torvalds@linux-foundation.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes, see mirroring instructions on how to clone and mirror all data and code used by this external index.