From: Wu Fengguang <wfg@mail.ustc.edu.cn>
To: linux-kernel@vger.kernel.org
Cc: Andrew Morton <akpm@osdl.org>,
Christoph Lameter <christoph@lameter.com>,
Rik van Riel <riel@redhat.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>
Subject: [PATCH 00/16] Balancing the scan rate of major caches V3
Date: Wed, 07 Dec 2005 18:47:55 +0800 [thread overview]
Message-ID: <20051207104755.177435000@localhost.localdomain> (raw)
Changes since V2:
- fix divide error in shrink_slab()
- more debug/accounting code
- fine grained priority/scan quantity
- reluctant to reclaim lowest zone if it is out of sync with highest zone
Changes since V1:
- better broken up of patches
- replace pages_more_aged with age_ge/age_gt
- expanded shrink_slab interface
- rewrite kswapd rebalance logic to be simple and robust
This patch balances the aging rates of active_list/inactive_list/slab.
It started out as an effort to enable the adaptive read-ahead to handle large
number of concurrent readers. Then I found it envolves much more stuffs, and
deserves a standalone patchset to address the balancing problem as a whole.
The whole picture of balancing:
- In each node, inactive_list scan rates are synced with each other
It is done in the direct/kswapd reclaim path.
- In each zone, active_list scan rate always follows that of inactive_list
- Slab cache scan rates always follow that of the current node.
Since shrink_slab() can be called from different CPUs, that effectly sync
slab cache scan rates with that of the most scanned node.
The patches is grouped as follows:
- balancing stuffs
mm-revert-vmscan-balancing-fix.patch
mm-simplify-kswapd-reclaim-code.patch
mm-balance-zone-aging-supporting-facilities.patch
mm-balance-zone-aging-in-direct-reclaim.patch
mm-balance-zone-aging-in-kswapd-reclaim.patch
mm-balance-slab-aging.patch
mm-balance-active-inactive-list-aging.patch
mm-fine-grained-scan-priority.patch
- pure code cleanups
mm-remove-unnecessary-variable-and-loop.patch
mm-remove-swap-cluster-max-from-scan-control.patch
mm-accumulate-nr-scanned-reclaimed-in-scan-control.patch
mm-fold-bool-variables-into-flags-in-scan-control.patch
- minor fix
mm-scan-accounting-fix.patch
- debug code
mm-account-zone-aging-rounds.patch
mm-page-reclaim-debug-traces.patch
mm-kswapd-reclaim-debug-trace.patch
Thanks,
Wu Fengguang
--
Dept. Automation University of Science and Technology of China
next reply other threads:[~2005-12-07 10:22 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-12-07 10:47 Wu Fengguang [this message]
2005-12-07 10:47 ` [PATCH 01/16] mm: restore sc.nr_to_reclaim Wu Fengguang
2005-12-07 10:47 ` [PATCH 02/16] mm: simplify kswapd reclaim code Wu Fengguang
2005-12-07 10:47 ` [PATCH 03/16] mm: supporting variables and functions for balanced zone aging Wu Fengguang
2005-12-11 22:36 ` Marcelo Tosatti
2005-12-12 2:53 ` Wu Fengguang
2005-12-07 10:47 ` [PATCH 04/16] mm: balance zone aging in direct reclaim path Wu Fengguang
2005-12-07 10:48 ` [PATCH 05/16] mm: balance zone aging in kswapd " Wu Fengguang
2005-12-07 10:58 ` Wu Fengguang
2005-12-07 13:32 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 06/16] mm: balance slab aging Wu Fengguang
2005-12-07 11:08 ` Wu Fengguang
2005-12-07 11:34 ` Nick Piggin
2005-12-07 12:59 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 07/16] mm: balance active/inactive list scan rates Wu Fengguang
2005-12-07 10:48 ` [PATCH 08/16] mm: fine grained scan priority Wu Fengguang
2005-12-07 10:48 ` [PATCH 09/16] mm: remove unnecessary variable and loop Wu Fengguang
2006-01-05 19:21 ` Marcelo Tosatti
2006-01-06 8:58 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 10/16] mm: remove swap_cluster_max from scan_control Wu Fengguang
2005-12-07 10:48 ` [PATCH 11/16] mm: let sc.nr_scanned/sc.nr_reclaimed accumulate Wu Fengguang
2005-12-07 10:48 ` [PATCH 12/16] mm: fold sc.may_writepage and sc.may_swap into sc.flags Wu Fengguang
2005-12-07 10:36 ` Nick Piggin
2005-12-07 11:11 ` Wu Fengguang
2005-12-07 11:12 ` Nick Piggin
2005-12-07 13:01 ` Wu Fengguang
2005-12-07 11:15 ` Wu Fengguang
2005-12-07 17:02 ` Martin Hicks
2005-12-07 23:15 ` Andrew Morton
2005-12-07 10:48 ` [PATCH 13/16] mm: fix minor scan count bugs Wu Fengguang
2005-12-07 10:32 ` Nick Piggin
2005-12-07 11:02 ` Wu Fengguang
2005-12-07 10:48 ` [PATCH 14/16] mm: zone aging rounds accounting Wu Fengguang
2005-12-07 10:48 ` [PATCH 15/16] mm: add page reclaim debug traces Wu Fengguang
2005-12-07 10:48 ` [PATCH 16/16] mm: kswapd reclaim debug trace Wu Fengguang
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