Re: Very aggressive memory reclaim

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi John,

On Mon, Mar 28, 2011 at 10:50:56PM +0400, John Lepikhin wrote:
> 2011/3/28 Jeffrey Hundstad <jeffrey.hundstad@xxxxxxxx>:
> 
> > I'd take a look here:
> > http://www.linuxinsight.com/proc_sys_vm_hierarchy.html
> 
> Yes, I already played with dirty_*, min_free_kbytes (3000kb),
> swappiness (0..100), vfs_cache_pressure (1..200) and zone_reclaim_mode
> (currently 0). Other parameters are set to defaults.
> 
> By the way, there is no swap enabled. Instead of just dropping 50% of
> page caches, kernel was intensively swapping then there was a swap
> device.

Is your memory usage balanced across the nodes? You can check it via
/sys/devices/system/node/node*/meminfo.

Are there lots of high-order memory allocations?  /proc/buddyinfo will
disclose some of them.

Thanks,
Fengguang
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux