1. perf top - didn't know about this. interesting.
2. 'top' shows more then 'perf top' - it shows memory consumption, it
shows time spent waiting for I/O (which won't show on 'perf top'), it
shows the spread of processes and threads across the CPU cores.
i say - why not use both?
--guy
On
It seems that while top lists kernel provided statistics per process which
is somewhat interesting but not all that useful, perf is really sampling
the system, and gives a real picture of who's hogging your system, which is
usually why you've started top in the first place.
Let me give a trivial
On Sun, 10 Nov 2013 20:24:56 +0200
Elazar Leibovich elaz...@gmail.com wrote:
Here's one reason:
==
slitt@mydesk:~$ cat /etc/issue
Ubuntu 12.10 \n \l
slitt@mydesk:~$ uname -a
Linux mydesk 3.5.0-42-generic #65-Ubuntu SMP Tue Oct 1 23:38:22 UTC
2013 x86_64
A. Apples are better than oranges.
B. perf top cannot be run by a non-root user.
--
Tzafrir Cohen | tzaf...@jabber.org | VIM is
http://tzafrir.org.il || a Mutt's
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While the point of perf not being available to non-root out of the box are
valid (though, it's just apt-get install linux-tools + echo 0|sudo tee
/proc/sys/kernel/perf_event_paranoid away, and it's the best bargain you'll
ever make), IMHO this is indeed apple vs apple comparison.
The goal of
