Messages in this thread |  | | | Date | Wed, 17 Oct 2007 17:11:30 -0400 | | From | "Lee Revell" <> | | Subject | Re: VM question - accounting of SysV SHM |
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On 10/17/07, Rik van Riel <riel@redhat.com> wrote: > On Wed, 17 Oct 2007 16:49:07 -0400 > "Lee Revell" <rlrevell@joe-job.com> wrote: > > > Sorry to ask this question on the list but I've Googled and found > > nothing. > > > > Is system V shared memory accounted for as Cached, or as normal > > application memory? > > Cached. > > Shared memory segments basically are tmpfs files.
Thanks!
Are there any plans to track it separately in a future kernel release?
I've also noticed that if huge pages are used for the shared memory, they are not accounted for as cached - I have a 56GB huge page pool but cached is only 6GB. Is this behavior specific to huge pages?
Finally, are these quirks documented anywhere?
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