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From: "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>
To: "Andrea Righi" <righi.andrea@gmail.com>
Cc: "KAMEZAWA Hiroyuki" <kamezawa.hiroyu@jp.fujitsu.com>,
	"Paul Menage" <menage@google.com>,
	"Balbir Singh" <balbir@linux.vnet.ibm.com>,
	"Gui Jianfeng" <guijianfeng@cn.fujitsu.com>,
	agk@sourceware.org, akpm@linux-foundation.org, axboe@kernel.dk,
	baramsori72@gmail.com, "Carl Henrik Lunde" <chlunde@ping.uio.no>,
	dave@linux.vnet.ibm.com, "Divyesh Shah" <dpshah@google.com>,
	eric.rannaud@gmail.com, fernando@oss.ntt.co.jp,
	"Hirokazu Takahashi" <taka@valinux.co.jp>,
	"Li Zefan" <lizf@cn.fujitsu.com>,
	matt@bluehost.com, dradford@bluehost.com, ngupta@google.com,
	randy.dunlap@oracle.com, roberto@unbit.it,
	"Ryo Tsuruta" <ryov@valinux.co.jp>,
	"Satoshi UCHIDA" <s-uchida@ap.jp.nec.com>,
	subrata@linux.vnet.ibm.com, yoshikawa.takuya@oss.ntt.co.jp,
	"Nauman Rafique" <nauman@google.com>,
	fchecconi@gmail.com, paolo.valente@unimore.it,
	containers@lists.linux-foundation.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/7] res_counter: introduce ratelimiting attributes
Date: Tue, 21 Apr 2009 19:19:39 +0900 (JST)	[thread overview]
Message-ID: <2fdd7e9df2c0b9380a0b1fcdedafecf7.squirrel@webmail-b.css.fujitsu.com> (raw)
In-Reply-To: <20090421095525.GA13699@linux>

Andrea Righi wrote:
> On Tue, Apr 21, 2009 at 09:15:34AM +0900, KAMEZAWA Hiroyuki wrote:

>> It's very bad if cacheline of spinlock is different from data field, in
>> future.
>
> Regarding the new attributes, policy can be surely an unsigned int or
> even less (now only 1 bit is used!), maybe we can just add an unsigned
> int flags, and encode also potential future informations there.
agreed.

>
> Moreover, are we sure we really need an unsigned long long for failcnt?
>
I think "int" is enough for failcnt.

Thanks,
-Kame


  parent reply	other threads:[~2009-04-21 10:19 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-04-18 21:38 [PATCH 0/7] cgroup: io-throttle controller (v14) Andrea Righi
2009-04-18 21:38 ` [PATCH 1/7] io-throttle documentation Andrea Righi
2009-04-18 21:38 ` [PATCH 2/7] res_counter: introduce ratelimiting attributes Andrea Righi
2009-04-21  0:15   ` KAMEZAWA Hiroyuki
2009-04-21  9:55     ` Andrea Righi
2009-04-21 10:16       ` Balbir Singh
2009-04-21 14:17         ` Andrea Righi
2009-04-21 10:19       ` KAMEZAWA Hiroyuki [this message]
2009-04-21 10:13   ` Balbir Singh
2009-04-21 11:16     ` Andrea Righi
2009-04-18 21:38 ` [PATCH 3/7] page_cgroup: provide a generic page tracking infrastructure Andrea Righi
2009-04-24  2:11   ` Gui Jianfeng
2009-04-24  8:31     ` Andrea Righi
2009-04-24  9:14       ` Gui Jianfeng
2009-04-26 17:19         ` Andrea Righi
2009-04-18 21:38 ` [PATCH 4/7] io-throttle controller infrastructure Andrea Righi
2009-04-20 17:59   ` Paul E. McKenney
2009-04-20 21:22     ` Andrea Righi
2009-04-21  4:15       ` Paul E. McKenney
2009-04-21 12:58         ` Andrea Righi
2009-04-21 14:03           ` Paul E. McKenney
2009-04-18 21:38 ` [PATCH 5/7] kiothrottled: throttle buffered (writeback) IO Andrea Righi
2009-04-23  7:53   ` Gui Jianfeng
2009-04-23 10:25     ` Andrea Righi
2009-04-24  6:36       ` Gui Jianfeng
2009-04-18 21:38 ` [PATCH 6/7] io-throttle instrumentation Andrea Righi
2009-04-18 21:38 ` [PATCH 7/7] export per-task io-throttle statistics to userspace Andrea Righi
2009-05-03 11:36 [PATCH 0/7] cgroup: io-throttle controller (v16) Andrea Righi
2009-05-03 11:36 ` [PATCH 2/7] res_counter: introduce ratelimiting attributes Andrea Righi

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