* disk IO profiling in guest suing sar command
@ 2011-05-18 20:43 Steven
0 siblings, 0 replies; only message in thread
From: Steven @ 2011-05-18 20:43 UTC (permalink / raw)
To: xen-users, xen-devel
Hi,
I am trying to profiling disk IO caused by page miss in memory inside
a guest OS. Both guest and host OS are Fedora 13.
I am using the linux command sar which provide such number of major faults like
majflt/s:
Number of major faults the system has made per
second, those which have required loading a memory page from disk
Then I started a workloads on both the guest and host OS. As a result,
the guest reports about 1000 majfits, while the host reports only
around 80. So is 1000 majflt is the actual disk IO for that guest? Or
the number of host OS is what I want. Thanks.
- w
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2011-05-18 20:43 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2011-05-18 20:43 disk IO profiling in guest suing sar command Steven
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).