From: shaohua.li@intel.com
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, cl@linux.com, tj@kernel.org,
eric.dumazet@gmail.com
Subject: [patch v2 0/4] percpu_counter: cleanup and fix
Date: Wed, 13 Apr 2011 15:57:15 +0800 [thread overview]
Message-ID: <20110413075715.090406229@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
50x faster (please see patch 4 for detail).
patch 1&2: clean up
patch 3: fix bug of percpu_counter for 32-bit systems.
patch 4: convert percpu_counter to use atomic64
next reply other threads:[~2011-04-13 8:05 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-13 7:57 shaohua.li [this message]
2011-04-13 7:57 ` [patch v2 1/4] percpu_counter: change return value and add comments shaohua.li
2011-04-13 19:05 ` Tejun Heo
2011-04-13 7:57 ` [patch v2 2/4] percpu_counter: delete dead code shaohua.li
2011-04-13 18:59 ` Tejun Heo
2011-04-18 0:12 ` Ted Ts'o
2011-04-13 7:57 ` [patch v2 3/4] percpu_counter: fix code for 32bit systems shaohua.li
2011-04-13 19:04 ` Tejun Heo
2011-04-13 7:57 ` [patch v2 4/4] percpu_counter: use atomic64 for counter shaohua.li
2011-04-13 19:07 ` Tejun Heo
2011-04-13 14:08 ` [patch v2 0/4] percpu_counter: cleanup and fix Christoph Lameter
2011-04-14 1:04 ` Shaohua Li
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=20110413075715.090406229@sli10-conroe.sh.intel.com \
--to=shaohua.li@intel.com \
--cc=akpm@linux-foundation.org \
--cc=cl@linux.com \
--cc=eric.dumazet@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=tj@kernel.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: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).