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From: Wu Fengguang <fengguang.wu@intel.com>
To: jack marrow <jackmarrow2@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: Memory usage per memory zone
Date: Thu, 12 Mar 2009 20:06:49 +0800	[thread overview]
Message-ID: <20090312120649.GA20854@localhost> (raw)
In-Reply-To: <e2dc2c680903120448q386f84a4t5667e22751002ae9@mail.gmail.com>

On Thu, Mar 12, 2009 at 01:48:50PM +0200, jack marrow wrote:
> >> Sure, but something is unreclaimable... Maybe some process is taking a
> >> lot of shared memory(shm)? What's the output of `lsof`?
> >
> > I can't paste that, but I expect oracle is using it.
> 
> Maybe this is helpful:
> 
> #  ipcs |grep oracle
> 0x00000000 2293770    oracle    640        4194304    22
> 0x00000000 2326539    oracle    640        536870912  22
> 0x880f3334 2359308    oracle    640        266338304  22
> 0x0f9b5efc 1933312    oracle    640        44

Up to 800M shm...

http://lwn.net/Articles/286485/
http://feedblog.org/2009/01/25/splitlru-patch-in-kernel-2628-must-have-for-mysql-and-innodb/

which reads: 

        If you’re running MySQL with InnoDB and an in-memory buffer pool, and
        having paging issues, you probably should upgrade to 2.6.28 ASAP.


Thanks,
Fengguang

WARNING: multiple messages have this Message-ID (diff)
From: Wu Fengguang <fengguang.wu@intel.com>
To: jack marrow <jackmarrow2@gmail.com>
Cc: LKML <linux-kernel@vger.kernel.org>,
	"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: Memory usage per memory zone
Date: Thu, 12 Mar 2009 20:06:49 +0800	[thread overview]
Message-ID: <20090312120649.GA20854@localhost> (raw)
In-Reply-To: <e2dc2c680903120448q386f84a4t5667e22751002ae9@mail.gmail.com>

On Thu, Mar 12, 2009 at 01:48:50PM +0200, jack marrow wrote:
> >> Sure, but something is unreclaimable... Maybe some process is taking a
> >> lot of shared memory(shm)? What's the output of `lsof`?
> >
> > I can't paste that, but I expect oracle is using it.
> 
> Maybe this is helpful:
> 
> #  ipcs |grep oracle
> 0x00000000 2293770    oracle    640        4194304    22
> 0x00000000 2326539    oracle    640        536870912  22
> 0x880f3334 2359308    oracle    640        266338304  22
> 0x0f9b5efc 1933312    oracle    640        44

Up to 800M shm...

http://lwn.net/Articles/286485/
http://feedblog.org/2009/01/25/splitlru-patch-in-kernel-2628-must-have-for-mysql-and-innodb/

which reads: 

        If youa??re running MySQL with InnoDB and an in-memory buffer pool, and
        having paging issues, you probably should upgrade to 2.6.28 ASAP.


Thanks,
Fengguang

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  reply	other threads:[~2009-03-12 12:08 UTC|newest]

Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-11 10:41 Memory usage per memory zone jack marrow
2009-03-11 11:43 ` Wu Fengguang
2009-03-11 11:43   ` Wu Fengguang
2009-03-11 11:51   ` jack marrow
2009-03-11 11:51     ` jack marrow
2009-03-11 12:11     ` Wu Fengguang
2009-03-11 12:11       ` Wu Fengguang
2009-03-11 12:16       ` jack marrow
2009-03-11 12:16         ` jack marrow
2009-03-11 12:26         ` Wu Fengguang
2009-03-11 12:26           ` Wu Fengguang
2009-03-12  7:53           ` jack marrow
2009-03-12  7:53             ` jack marrow
2009-03-12  7:59             ` Wu Fengguang
2009-03-12  7:59               ` Wu Fengguang
     [not found]               ` <e2dc2c680903120104h4d19a3f6j57ad045bc06f9a90@mail.gmail.com>
     [not found]                 ` <20090312081113.GA19506@localhost>
2009-03-12  8:48                   ` jack marrow
2009-03-12  8:48                     ` jack marrow
2009-03-12 11:14                     ` Wu Fengguang
2009-03-12 11:14                       ` Wu Fengguang
2009-03-12 11:39                       ` jack marrow
2009-03-12 11:39                         ` jack marrow
     [not found]                   ` <e2dc2c680903120117j7be962b2xd63f3296f8f65a46@mail.gmail.com>
2009-03-12 10:38                     ` Wu Fengguang
2009-03-12 10:38                       ` Wu Fengguang
2009-03-12 11:38                       ` jack marrow
2009-03-12 11:38                         ` jack marrow
2009-03-12 11:48                         ` jack marrow
2009-03-12 11:48                           ` jack marrow
2009-03-12 12:06                           ` Wu Fengguang [this message]
2009-03-12 12:06                             ` Wu Fengguang
2009-03-12 11:51                         ` Wu Fengguang
2009-03-12 11:51                           ` Wu Fengguang
2009-03-12 12:01                           ` jack marrow
2009-03-12 12:01                             ` jack marrow
2009-03-11 13:39 ` Thomas Schoebel-Theuer
2009-03-11 15:06   ` jack marrow

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