Hi,
Can't you get Disk IO with a tool such as iostat or vmstat?
$ iostat
Linux 2.6.30-rc7-tip (quad) 06/11/09
avg-cpu: %user %nice %system %iowait %steal %idle
0.16 0.00 0.43 0.03 0.00 99.38
Device: tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
sda 0.65 5.94 21.69 2224333 8127432
sda1 0.65 5.93 21.69 2221820 8127432
sda2 0.00 0.00 0.00 1021 0
sda3 0.00 0.00 0.00 600 0
sda4 0.00 0.00 0.00 636 0
On Thu, Jun 11, 2009 at 6:35 AM, Andrej van der Zee <
andrejvander...@gmail.com> wrote:
> Hi,
>
> Thanks for your reply.
>
> >
> > The performance monitoring hardware isn't going to determine whether it
> is a
> > major or minor page fault. The software needs to do some examination of
> the data
> > structures to determine whether a simple fix up of the data structure if
> > required (minor) and an access to disk (major).
> >
>
> Do you think it is feasible to hack this distinction between minor and
> major page faults into perfmon2 without to much effort? I am not much
> of a kernel programmer, so sorry if it is a silly question. But if it
> is possible, I could delegate the work to one of my coworkers. I am
> targeting for Intel Dual Core / Xeon CPUs.
>
> Thank you,
> Andrej
>
>
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