On Friday 04 January 2008 09:49:22 Rob Landley wrote:
> On Thursday 03 January 2008 15:38:02 Clemens Kolbitsch wrote:
> > Does anyone have an idea on how I can measure performance in qemu to a
> > somewhat accurate level?
>
> hwclock --show > time1
> tar xvjf linux-2.6.23.tar.bz2 && cd linux-2.6.23
On Thursday 03 January 2008 15:38:02 Clemens Kolbitsch wrote:
> Does anyone have an idea on how I can measure performance in qemu to a
> somewhat accurate level?
hwclock --show > time1
tar xvjf linux-2.6.23.tar.bz2 && cd linux-2.6.23 && make allnoconfig && make
cd ..
hwclock --show > time2
Do th
On Thursday 03 January 2008 23:18:58 Paul Brook wrote:
> > Well, the measuring I had in mind partly concentrats on TLB misses, page
> > faults, etc. (in addition to the cycle measuring). guess i'll have to
> > implement something for myself in qemu :-/
>
> Be aware that the TLB qemu uses behaves ve
On Jan 3, 2008 11:11 PM, Clemens Kolbitsch <[EMAIL PROTECTED]> wrote:
>
> Well, the measuring I had in mind partly concentrats on TLB misses, page
> faults, etc. (in addition to the cycle measuring). guess i'll have to
> implement something for myself in qemu :-/
There's something not clear here:
> Well, the measuring I had in mind partly concentrats on TLB misses, page
> faults, etc. (in addition to the cycle measuring). guess i'll have to
> implement something for myself in qemu :-/
Be aware that the TLB qemu uses behaves very differently to a real CPU TLB. If
you want to get TLB miss s
On Thursday 03 January 2008 23:07:07 you wrote:
> > Does anyone have an idea on how I can measure performance in qemu to a
> > somewhat accurate level? I have modified qemu (the memory handling) and
> > the linux kernel and want to find out the penalty this introduced... does
> > anyone have any co
> Does anyone have an idea on how I can measure performance in qemu to a
> somewhat accurate level? I have modified qemu (the memory handling) and the
> linux kernel and want to find out the penalty this introduced... does
> anyone have any comments / ideas on this?
Short answer is you probably ca
On Thursday 03 January 2008 22:29:06 Paul Brook wrote:
> > ... Ok, to cut a long question short: Is there any hardware support im
> > qemu for doing monitoring (that goes deeper than using "time") and has
> > anyone ever tested something that could work?
>
> Probably your application wants the perf
> ... Ok, to cut a long question short: Is there any hardware support im qemu
> for doing monitoring (that goes deeper than using "time") and has anyone
> ever tested something that could work?
Probably your application wants the performance counters. Qemu doesn't emulate
those.
Besides which, q
hi!
has anyone ever used some "real" performance monitoring tools (like papiex,
perfex, pfmon, etc.) on qemu? i'm running a debian linux and would like to
time some applications inside qemu and have tried the perfmon2 kernel-patch
(http://perfmon2.sourceforge.net/) for testing.
sadly, it does n
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