Is there a reason to use `top` over `perf top`?

[guy keren]

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 11/11/2013 07:25 AM, Elazar Leibovich wrote:
> 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 top's user is identical to the goal of perf's user - to find
> bottleneck in a live system.
>
>
> On Sun, Nov 10, 2013 at 9:30 PM, Tzafrir Cohen <tzafrir at cohens.org.il
> <mailto:tzafrir at cohens.org.il>> wrote:
>
>     A. Apples are better than oranges.
>
>     B. perf top cannot be run by a non-root user.
>
>
>     --
>     Tzafrir Cohen         | tzafrir at jabber.org
>     <mailto:tzafrir at jabber.org> | VIM is
>     http://tzafrir.org.il |                    | a Mutt's
>     tzafrir at cohens.org.il <mailto:tzafrir at cohens.org.il> |
>           |  best
>     tzafrir at debian.org <mailto:tzafrir at debian.org>    |
>         | friend
>
>     _______________________________________________
>     Linux-il mailing list
>     Linux-il at cs.huji.ac.il <mailto:Linux-il at cs.huji.ac.il>
>     http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>
>
>
>
> _______________________________________________
> Linux-il mailing list
> Linux-il at cs.huji.ac.il
> http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il
>