i think it is page cache.
my case is in virualization environment,
because vm's disk image is much larger than system's cache, i want to know when many vms are running if system cache hit rate is very low? if there is a need to seek for other way to suit virtualization.
system's default cache mechanism does not care about virtualization.
thanks
At 2013-12-26 02:00:43,"Theodore Ts'o" <tytso@xxxxxxx> wrote: >On Wed, Dec 25, 2013 at 09:32:50AM +0800, fsluck wrote: >> how to know ext cache hit rate? > >Which cache are you referring to, specifically? The page cache? The >inode cache? The dentry cache? > >What problem are you trying to solve, at a high level? > > - Ted
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