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Re:Re: how to know ext cache hit rate?



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 mit edu> 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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