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DateSat, 27 Mar 2010 18:20:37 -0700 (PDT)
FromBen Gamari <>
SubjectRe: Poor interactive performance with I/O loads with fsync()ing
Hey all,

I have posted another profile[1] from an incident yesterday. As you can see,
both swapper and init (strange?) show up prominently in the profile. Moreover,
most processes seem to be in blk_peek_request a disturbingly large percentage
of the time. Both of these profiles were taken with 2.6.34-rc kernels.

Anyone have any ideas on how to proceed? Is more profile data necessary? Are
the existing profiles at all useful? Thanks,

- Ben


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