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Subject: Re: Memory pressure handling with iSCSI
From: Badari Pulavarty <pbadari@us.ibm.com>
To: Andrew Morton <akpm@osdl.org>
Cc: lkml <linux-kernel@vger.kernel.org>, linux-mm <linux-mm@kvack.org>
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Date: Tue, 26 Jul 2005 14:45:00 -0700
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On Tue, 2005-07-26 at 14:24 -0700, Andrew Morton wrote:
> Badari Pulavarty <pbadari@us.ibm.com> wrote:
> >
> > ext2 is incredibly better. Machine is very responsive. 
> > 
> 
> OK.  Please, always monitor and send /proc/meminfo.  I assume that the
> dirty-memory clamping is working OK with ext2 and that perhaps it'll work
> OK with ext3/data=writeback.

Nope. Dirty is still very high..

# cat /proc/meminfo
MemTotal:      7143628 kB
MemFree:         33248 kB
Buffers:          8368 kB
Cached:        6789932 kB
SwapCached:          0 kB
Active:          51316 kB
Inactive:      6769144 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      7143628 kB
LowFree:         33248 kB
SwapTotal:     1048784 kB
SwapFree:      1048780 kB
Dirty:         6605704 kB
Writeback:      168452 kB
Mapped:          49724 kB
Slab:           252200 kB
CommitLimit:   4620596 kB
Committed_AS:   163524 kB
PageTables:       2284 kB
VmallocTotal: 34359738367 kB
VmallocUsed:      9888 kB
VmallocChunk: 34359728447 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Thanks,
Badari