linux-kernel - Re: [PATCH 02/09] memcg: make inactive_anon_is

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20081130122554.GA12552@localhost>
Date:	Sun, 30 Nov 2008 15:25:54 +0300
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Cc:	LKML <linux-kernel@...r.kernel.org>, linux-mm <linux-mm@...ck.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Balbir Singh <balbir@...ux.vnet.ibm.com>,
	KAMEZAWA Hiroyuki <kamezawa.hiroyu@...fujitsu.com>,
	Rik van Riel <riel@...hat.com>
Subject: Re: [PATCH 02/09] memcg: make inactive_anon_is_low()

[KOSAKI Motohiro - Sun, Nov 30, 2008 at 07:56:37PM +0900]
| make inactive_anon_is_low for memcgroup.
| it improve active_anon vs inactive_anon ratio balancing.
| 
| 
| Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
| ---
...
| +static void mem_cgroup_set_inactive_ratio(struct mem_cgroup *memcg)
| +{
| +	unsigned int gb, ratio;
| +
| +	gb = res_counter_read_u64(&memcg->res, RES_LIMIT) >> 30;
| +	ratio = int_sqrt(10 * gb);
| +	if (!ratio)
| +		ratio = 1;

Hi Kosaki,

maybe better would be

	gb = ...;
	if (gb) {
		ratio = int_sqrt(10 * gb);
	} else
		ratio = 1;

| +
| +	memcg->inactive_ratio = ratio;
| +
| +}
| +
...

		- Cyrill -
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/