linux-kernel - Re: [RFC][-mm] [2/2] Simple stats for memory resource controller

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] [day] [month] [year] [list]

Message-ID: <47EA9BF2.2060301@linux.vnet.ibm.com>
Date:	Thu, 27 Mar 2008 00:24:42 +0530
From:	Balbir Singh <balbir@...ux.vnet.ibm.com>
To:	Balaji Rao <balajirrao@...il.com>
CC:	linux-kernel@...r.kernel.org, containers@...ts.osdl.org,
	menage@...gle.com, balbir@...ibm.com, dhaval@...ux.vnet.ibm.com
Subject: Re: [RFC][-mm] [2/2] Simple stats for memory resource controller

Balaji Rao wrote:
> This patch implements trivial statistics for the memory resource controller.
> 
> Signed-off-by: Balaji Rao <balajirrao@...il.com>
> CC: Balbir Singh <balbir@...ux.vnet.ibm.com>
> CC: Dhaval Giani <dhaval@...ux.vnet.ibm.com>
> 
> 
> diff --git a/mm/memcontrol.c b/mm/memcontrol.c
> index eb681a6..84f3fe5 100644
> --- a/mm/memcontrol.c
> +++ b/mm/memcontrol.c
> @@ -45,6 +45,8 @@ enum mem_cgroup_stat_index {
>  	 */
>  	MEM_CGROUP_STAT_CACHE, 	   /* # of pages charged as cache */
>  	MEM_CGROUP_STAT_RSS,	   /* # of pages charged as rss */
> +	MEM_CGROUP_STAT_PGIN_COUNT,	/* # of pages paged in */
> +	MEM_CGROUP_STAT_PGOUT_COUNT,	/* # of pages paged out */
> 
>  	MEM_CGROUP_STAT_NSTATS,
>  };
> @@ -196,6 +198,13 @@ static void mem_cgroup_charge_statistics(struct mem_cgroup *mem, int flags,
>  		__mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_CACHE, val);
>  	else
>  		__mem_cgroup_stat_add_safe(stat, MEM_CGROUP_STAT_RSS, val);
> +
> +	if (charge)
> +		__mem_cgroup_stat_add_safe(stat,
> +				MEM_CGROUP_STAT_PGIN_COUNT, 1);
> +	else
> +		__mem_cgroup_stat_add_safe(stat,
> +				MEM_CGROUP_STAT_PGOUT_COUNT, 1);
>  }
> 
>  static struct mem_cgroup_per_zone *
> @@ -886,6 +895,8 @@ static const struct mem_cgroup_stat_desc {
>  } mem_cgroup_stat_desc[] = {
>  	[MEM_CGROUP_STAT_CACHE] = { "cache", PAGE_SIZE, },
>  	[MEM_CGROUP_STAT_RSS] = { "rss", PAGE_SIZE, },
> +	[MEM_CGROUP_STAT_PGIN_COUNT] = {"page_in_count", 1, },
> +	[MEM_CGROUP_STAT_PGOUT_COUNT] = {"page_out_count", 1, },
>  };
> 
>  static int mem_control_stat_show(struct cgroup *cont, struct cftype *cft,

Looks simple and nice. Please see Paul's mail on the suggested name change as well

Acked-by:  Balbir Singh <balbir@...ux.vnet.ibm.com>


-- 
	Warm Regards,
	Balbir Singh
	Linux Technology Center
	IBM, ISTL
--
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/