Re: [Valgrind-users] oprofile and kcachegrind

2013-04-23 Thread Mark Wielaard
On Tue, Apr 23, 2013 at 01:22:31PM +0800, Ice Frog wrote: I use oprofile for performance profiling. I noticed that kcachegrind(more specifically, op2callgrind or kcachegrind-converters) is able to analyze information generated by oprofile. Please give me a hint where I can find the install

Re: [Valgrind-users] oprofile and kcachegrind

2013-04-23 Thread Josef Weidendorfer
Am 23.04.2013 09:35, schrieb Mark Wielaard: On Tue, Apr 23, 2013 at 01:22:31PM +0800, Ice Frog wrote: I use oprofile for performance profiling. I noticed that kcachegrind(more specifically, op2callgrind or kcachegrind-converters) is able to analyze information generated by oprofile. Please

Re: [Valgrind-users] multiple cores being used?

2013-04-23 Thread Philippe Waroquiers
On Thu, 2013-04-18 at 08:50 -0700, Brian Budge wrote: Hi Paul. I am at 20% of memory use. I should also note that I followed Julian's advice for increasing vg_n_segments and memory size to 128 GB. Does valgrind itself do anything multithreaded? My program uses all cores on the machine at

Re: [Valgrind-users] multiple cores being used?

2013-04-23 Thread Brian Budge
On Tue, Apr 23, 2013 at 1:04 PM, Philippe Waroquiers philippe.waroqui...@skynet.be wrote: Some prototyping was done of a non serialised valgrind. See https://bugs.kde.org/show_bug.cgi?id=301830 and the MTV branch in svn. This prototype is not usable in its current state: only the none tool

Re: [Valgrind-users] multiple cores being used?

2013-04-23 Thread Philippe Waroquiers
On Tue, 2013-04-23 at 13:08 -0700, Brian Budge wrote: Some prototyping was done of a non serialised valgrind. See https://bugs.kde.org/show_bug.cgi?id=301830 and the MTV branch in svn. This prototype is not usable in its current state: only the none

[Valgrind-users] Fwd: __malloc_initialize_hook is deprecatedco. warnings while building ast-open.2013-04-22 ...

2013-04-23 Thread Roland Mainz
Hi! Does valgrind provide any replacements for glibc's |__malloc_initialize_hook()| ? It seems this call and it's |*hook*()| siblings are depreciated now (at least in SuSE =12.3) ... Bye, Roland -- Forwarded message -- From: Roland Mainz roland.ma...@nrubsig.org

Re: [Valgrind-users] Fwd: __malloc_initialize_hook is deprecatedco. warnings while building ast-open.2013-04-22 ...

2013-04-23 Thread John Reiser
Does valgrind provide any replacements for glibc's |__malloc_initialize_hook()| ? It seems this call and it's |*hook*()| siblings are depreciated now (at least in SuSE =12.3) ... There is no glibc replacement. [And the reasoning is correct.] There is no valgrind replacement. You must change

[Valgrind-users] Performance profiling in VM using Valgrind

2013-04-23 Thread Liu James
Dear all, I used Valgrind(callgrind) to profile database cache performance, and the host machine is a VM guest with XEON CPU. Without instrumentation, the performance of dbms with cache-on is 20% higher than cache-off. With callgrind, the call graph shows there is a 5x performance improvement.

Re: [Valgrind-users] Performance profiling in VM using Valgrind

2013-04-23 Thread John Reiser
I appreciate you could recommend some other profile tools. Get a recent AMD CPU and investigate this work: [Valgrind-developers] Believed to be complete: LWP support for Valgrind (feature request 317441) Rick Gorton rcgorton verizon net 04/07/2013 --