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  • 0 posts edited
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  • 29 votes cast
Jun
22
revised How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
HPCToolkit does not require perf userspace tool; it uses perf events via PAPI library
Jun
22
comment Fail to install perf on slackware 13.1
Thanks. This allowed me to solve my isse with perf as well (though on Gentoo rather than Slackware, with kernel2.6.36-gentoo-r4)... though instead of modifying Makefile I just ran make with NO_LIBPERL=1 (though I do have libperl.so; I don't know why those errors either).
Jun
13
accepted How / where to get sources for kernel-2.6.36-gentoo-r4 in Gentoo Linux distribution?
Jun
13
asked How to check if libfftw3_threads.so.3.2.4 shared library was compiled for pthreads or for OpenMP?
Jun
10
asked How / where to get sources for kernel-2.6.36-gentoo-r4 in Gentoo Linux distribution?
Jun
9
accepted Detect if an ELF binary was built with gprof instrumentation?
Jun
6
asked Detect if an ELF binary was built with gprof instrumentation?
Jun
2
comment Do I need root (admin) permissions to run userspace 'perf' tool? (perf events are enabled in Linux kernel)
Nice. cat /proc/sys/kernel/perf_event_paranoid returns 1, so it seems that I would be able to take at least some measurements (BTW. whats the difference betwen "kernel profiling data" and "CPU event data"? Reference is enough)
Jun
2
accepted Do I need root (admin) permissions to run userspace 'perf' tool? (perf events are enabled in Linux kernel)
Jun
2
awarded  Commentator
Jun
2
comment Do I need root (admin) permissions to run userspace 'perf' tool? (perf events are enabled in Linux kernel)
I am asking this question to decide whether it is worth trying to install (as ordinary user, in $HOME) userspace part of perf tool (which is/can be non-trivial).
Jun
2
asked Do I need root (admin) permissions to run userspace 'perf' tool? (perf events are enabled in Linux kernel)
Jun
1
accepted Installing Gentoo packages as an ordinary user (non-root)
May
29
comment Installing Gentoo packages as an ordinary user (non-root)
Unfortunately from first browsing they do require good konwledge of Gentoo... and I am just beginning to use computer with Gentoo installed. As far as I have checked they lack step by step instruction. Still, I'll be trying.
May
28
comment Installing Gentoo packages as an ordinary user (non-root)
Could you give me step by step instruction how to install given package locally?
May
28
comment How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
@cjm: Thanks, rechecked just in case, and fixed. (Its 'perf' not 'prof', but it is 'gprof' not 'gperf'...).
May
28
revised How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
it's perf, not prof
May
28
comment How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
This question should IMHO use perf_events tag... but it does not exists yet, and I don't have enough reputation to add it.
May
28
asked How to check that perf events are enabled in Linux kernel, and how to install perf userland as non-root?
May
28
revised How to find memory per core on multicore CPU?
note that app is used also on NUMA machines