On Tue, 8 Nov 2011, Arnaldo Carvalho de Melo wrote:
Em Tue, Nov 08, 2011 at 01:07:55PM +0100, Ingo Molnar escreveu:
* Vince Weaver vi...@deater.net wrote:
as mentioned before I have my own perf_event test suite with 20+ tests.
http://web.eecs.utk.edu/~vweaver1/projects/perf-events
On Mon, 7 Nov 2011, Pekka Enberg wrote:
I've never heard ABI incompatibility used as an argument for perf. Ingo?
Never overtly. They're too clever for that.
In any case, as a primary developer of a library (PAPI) that uses the
perf_events ABI I have to say that having perf in the kernel has
On Mon, 7 Nov 2011, Ingo Molnar wrote:
I think we needed to do only one revert along the way in the past two
years, to fix an unintended ABI breakage in PowerTop. Considering the
total complexity of the perf ABI our compatibility track record is
*very* good.
There have been more breakages,
On Sat, 6 Nov 2010, Stefan Hajnoczi wrote:
On Thu, Nov 4, 2010 at 7:20 PM, Vince Weaver vi...@csl.cornell.edu wrote:
This is mostly a proof of concept, I'm not sure if anyone is interested in
this. It could in theory be useful for tracking down performance problems
from iside of Qemu
Hello
The following patch enables simulated perf event support inside of Qemu
for x86_64 systems. It enables support for the AMD performance MSRs enough
to return values for the retired_instructions (both user and kernel) and
cpu_clk_unhalted events.
This is mostly a proof of concept, I'm
Hello
have you tried older versions of qemu, in an attempt to see if this is a
recent problem?
As of about a year ago I had qemu-sparc32plus running most of SPEC2006
properly, validated against hardware perf counters.
gcc definitely worked. I had issues with calculix, dealII, soplex, wrf,
happen again, as they are part of the TB instruction stream.
Did you get correct values for your counters in bbvs[bb] ?
yes. And the resuts match valgrind, pin, and hardware performance
counters.
Vince
De: Vince Weaver vi...@csl.cornell.edu
Para: Boris Cámara
I think the correct way to get the full instruction trace on a MIPS
emulated processor is:
the way you describe is slow because you are constantly re-generating the
TBs. The best way to do this is to add your instrumentation to the TBs.
I have code that does that for a recent version of
On Sun, 7 Feb 2010, Richard Henderson wrote:
I imagine that QEMU's VDSO would not have the complicated bits that the
kernel's version does, where it arranges to read the clock without going into
kernel space. I imagine QEMU would simply stuff a normal syscall sequence in
there, which would
for me, although it might not be the cleanest
fix.
This issue keeps sixtrack and fma3d spec2k benchmarks from running.
Vince
Signed-off-by: Vince Weaver vi...@csl.cornell.edu
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 1acf1f5..f2dd39e 100644
--- a/linux-user/syscall.c
+++ b
On Mon, 14 Dec 2009, Richard Henderson wrote:
On 12/14/2009 04:31 PM, Richard Henderson wrote:
Hmph. One more patch for correctness. With this 183.equake runs correctly.
I just finished running all of spec2k Alpha through Qemu.
With these patches installed (the 4 fpu ones, and the 5 from
Hello
The 0.9.1 release segfaults on certain benchmarks under linux-user
emulation (x86 on x86).
Specifically facerec from the SPEC2000 benchmarks, and over half of the
SPEC2006 benchmarks.
I tracked this down to a problem in the mmap() code in linux-user.
I've attached a patch that reverts
I think this patch is needed for proper implementation of
the sh4 mov.b @(disp,Rm),R0 instruction.
and of course, I managed to send a reversed patch. That will teach me to
send out things like that late at night. Here's the proper patch.
Vince
---
Hello
I think this patch is needed for proper implementation of
the sh4 mov.b @(disp,Rm),R0 instruction.
Vince
--- ./qemu-snapshot-2007-08-14_05/target-sh4/translate.c2007-08-24
01:48:47.0 -0400
+++ ./qemu-snapshot-2007-08-14_05/target-sh4/translate.c.orig 2007-08-24
to
be a bit harder.
Thanks for any help,
Vince Weaver
[EMAIL PROTECTED]
___
Qemu-devel mailing list
Qemu-devel@nongnu.org
http://lists.nongnu.org/mailman/listinfo/qemu-devel
15 matches
Mail list logo
