<html><head></head><body bgcolor="#FFFFFF"><div>Check the slab usage of xfs_* might help .</div><div><br></div><div>$ sudo slabtop</div><div><br></div><div>Hope it help<br><br>從我的 iPhone 傳送</div><div><br>Jonathan Lu <<a href="mailto:jojokururu@gmail.com">jojokururu@gmail.com</a>> 於 2013/6/17 下午3:25 寫道：<br><br></div><div></div><blockquote type="cite"><div>
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Hi, all,
<br>
I'm facing the issue about the performance degradation, and once
I glanced that changing the value in /proc/sys/vm/vfs_cache_pressure
will do a favour.
<br>
<br>
Can anyone explain to me whether and why it is useful? I have
scanned the <a href="http://docs.openstack.org/developer/swift/deployment_guide.html#general-server-configuration">Deployment
Guide of OpenStack Swift</a> but cannot find anything about such
tuning.
<br>
<br>
Thanks,
<br>
Jonathan Lu
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