From: shaohua.li@intel.com
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, tj@kernel.org, cl@linux.com,
eric.dumazet@gmail.com
Subject: [patch v3 0/3] percpu_counter: cleanup and fix
Date: Thu, 14 Apr 2011 10:04:47 +0800 [thread overview]
Message-ID: <20110414020447.979946152@sli10-conroe.sh.intel.com> (raw)
Cleanup percpu_counter code and fix some bugs. The main purpose is to convert
percpu_counter to use atomic64, which is useful for workloads which cause
percpu_counter->lock contented. In a workload I tested, the atomic method is
7x faster (please see patch 3 for detail).
Note, patch 3 is against Christoph's 'percpu: preemptless __per_cpu_counter_add'
next reply other threads:[~2011-04-14 2:07 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-14 2:04 shaohua.li [this message]
2011-04-14 2:04 ` [patch v3 1/3] percpu_counter: change return value and add comments shaohua.li
2011-04-14 2:32 ` Eric Dumazet
2011-04-15 3:41 ` Tejun Heo
2011-04-14 2:04 ` [patch v3 2/3] percpu_counter: fix code for 32bit systems for UP shaohua.li
2011-04-14 2:35 ` Eric Dumazet
2011-04-14 2:44 ` Shaohua Li
2011-04-14 2:54 ` Eric Dumazet
2011-04-18 7:41 ` Shaohua Li
2011-04-14 2:04 ` [patch v3 3/3] percpu_counter: use atomic64 for counter in SMP shaohua.li
2011-04-15 4:15 ` Tejun Heo
2011-04-18 7:43 ` Shaohua Li
2011-04-18 14:25 ` Christoph Lameter
2011-04-20 1:04 ` Shaohua Li
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