From: Mel Gorman <mgorman@techsingularity.net>
To: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
LKML <linux-kernel@vger.kernel.org>,
Rik van Riel <riel@surriel.com>,
Thomas Gleixner <tglx@linutronix.de>
Subject: Re: [PATCH v2 14/19] sched/numa: Updation of scan period need not be in lock
Date: Thu, 21 Jun 2018 10:51:43 +0100 [thread overview]
Message-ID: <20180621095143.4a4ikeffphcz7ruw@techsingularity.net> (raw)
In-Reply-To: <1529514181-9842-15-git-send-email-srikar@linux.vnet.ibm.com>
On Wed, Jun 20, 2018 at 10:32:55PM +0530, Srikar Dronamraju wrote:
> The metrics for updating scan periods are local or task specific.
> Currently this updation happens under numa_group lock which seems
> unnecessary. Hence move this updation outside the lock.
>
> Running SPECjbb2005 on a 4 node machine and comparing bops/JVM
> JVMS LAST_PATCH WITH_PATCH %CHANGE
> 16 25355.9 25645.4 1.141
> 1 72812 72142 -0.92
>
> Reviewed-by: Rik van Riel <riel@surriel.com>
> Signed-off-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Acked-by: Mel Gorman <mgorman@techsingularity.net>
--
Mel Gorman
SUSE Labs
next prev parent reply other threads:[~2018-06-21 9:51 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-20 17:02 [PATCH v2 00/19] Fixes for sched/numa_balancing Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 01/19] sched/numa: Remove redundant field Srikar Dronamraju
2018-07-25 14:23 ` [tip:sched/core] " tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 02/19] sched/numa: Evaluate move once per node Srikar Dronamraju
2018-06-21 9:06 ` Mel Gorman
2018-07-25 14:24 ` [tip:sched/core] " tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 03/19] sched/numa: Simplify load_too_imbalanced Srikar Dronamraju
2018-07-25 14:24 ` [tip:sched/core] sched/numa: Simplify load_too_imbalanced() tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 04/19] sched/numa: Set preferred_node based on best_cpu Srikar Dronamraju
2018-06-21 9:17 ` Mel Gorman
2018-07-25 14:25 ` [tip:sched/core] " tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 05/19] sched/numa: Use task faults only if numa_group is not yet setup Srikar Dronamraju
2018-06-21 9:38 ` Mel Gorman
2018-07-25 14:25 ` [tip:sched/core] sched/numa: Use task faults only if numa_group is not yet set up tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 06/19] sched/debug: Reverse the order of printing faults Srikar Dronamraju
2018-07-25 14:26 ` [tip:sched/core] " tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 07/19] sched/numa: Skip nodes that are at hoplimit Srikar Dronamraju
2018-07-25 14:27 ` [tip:sched/core] sched/numa: Skip nodes that are at 'hoplimit' tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 08/19] sched/numa: Remove unused task_capacity from numa_stats Srikar Dronamraju
2018-07-25 14:27 ` [tip:sched/core] sched/numa: Remove unused task_capacity from 'struct numa_stats' tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 09/19] sched/numa: Modify migrate_swap to accept additional params Srikar Dronamraju
2018-07-25 14:28 ` [tip:sched/core] sched/numa: Modify migrate_swap() to accept additional parameters tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 10/19] sched/numa: Stop multiple tasks from moving to the cpu at the same time Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 11/19] sched/numa: Restrict migrating in parallel to the same node Srikar Dronamraju
2018-07-23 10:38 ` Peter Zijlstra
2018-07-23 11:16 ` Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 12/19] sched/numa: Remove numa_has_capacity Srikar Dronamraju
2018-07-25 14:28 ` [tip:sched/core] sched/numa: Remove numa_has_capacity() tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 13/19] mm/migrate: Use xchg instead of spinlock Srikar Dronamraju
2018-06-21 9:51 ` Mel Gorman
2018-07-23 10:54 ` Peter Zijlstra
2018-07-23 11:20 ` Srikar Dronamraju
2018-07-23 14:04 ` Peter Zijlstra
2018-06-20 17:02 ` [PATCH v2 14/19] sched/numa: Updation of scan period need not be in lock Srikar Dronamraju
2018-06-21 9:51 ` Mel Gorman [this message]
2018-07-25 14:29 ` [tip:sched/core] sched/numa: Update the scan period without holding the numa_group lock tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 15/19] sched/numa: Use group_weights to identify if migration degrades locality Srikar Dronamraju
2018-07-25 14:29 ` [tip:sched/core] " tip-bot for Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 16/19] sched/numa: Detect if node actively handling migration Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 17/19] sched/numa: Pass destination cpu as a parameter to migrate_task_rq Srikar Dronamraju
2018-06-20 17:02 ` [PATCH v2 18/19] sched/numa: Reset scan rate whenever task moves across nodes Srikar Dronamraju
2018-06-21 10:05 ` Mel Gorman
2018-07-04 11:19 ` Srikar Dronamraju
2018-06-20 17:03 ` [PATCH v2 19/19] sched/numa: Move task_placement closer to numa_migrate_preferred Srikar Dronamraju
2018-06-21 10:06 ` Mel Gorman
2018-07-25 14:30 ` [tip:sched/core] sched/numa: Move task_numa_placement() closer to numa_migrate_preferred() tip-bot for Srikar Dronamraju
2018-06-20 17:03 ` [PATCH v2 00/19] Fixes for sched/numa_balancing Srikar Dronamraju
2018-07-23 13:57 ` Peter Zijlstra
2018-07-23 15:09 ` Srikar Dronamraju
2018-07-23 15:21 ` Peter Zijlstra
2018-07-23 16:29 ` Srikar Dronamraju
2018-07-23 16:47 ` Peter Zijlstra
2018-07-23 15:33 ` Rik van Riel
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