423 reputation
316
bio website
location Torun, Poland
age 37
visits member for 3 years, 2 months
seen Apr 4 at 14:59

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
May
28
asked Installing Gentoo packages as an ordinary user (non-root)
May
28
awarded  Editor
May
28
comment How to find memory per core on multicore CPU?
I have added fragment of Makefile template of said app that talks about "memory per core". Your guess is as good as mine in what it mean; I think it might be total memory / number of cores (CPUs).
May
28
revised How to find memory per core on multicore CPU?
Insert Makefile template from said app that talks about "memory per core"
May
27
asked How to find memory per core on multicore CPU?
May
27
comment Set up password-less SSH tunneling from home computer behind NAT to inside computer behind gateway
That allows logging from home to gitrepo1; I was wondering about logging from gitepo1 to home.
May
27
asked Set up password-less SSH tunneling from home computer behind NAT to inside computer behind gateway