* perf top using /proc/kcore
@ 2013-10-15 2:09 Arnaldo Carvalho de Melo
2013-10-15 6:13 ` Adrian Hunter
0 siblings, 1 reply; 2+ messages in thread
From: Arnaldo Carvalho de Melo @ 2013-10-15 2:09 UTC (permalink / raw)
To: Adrian Hunter
Cc: David Ahern, Jiri Olsa, Namhyung Kim, Linux Kernel Mailing List
Hi Adrian,
While testing 'perf top -U' to reply a message in another thread
I noticed that ksm symbols appeared as '[kernel]', and only when I tried
'perf top -U -v' to look at the DSO long name I noticed that it was...
/proc/kcore.
Question is: since we have access to /proc/modules, can't we
parse that, as when we have access to vmlinux, and recreate the mmaps,
etc, and see:
[module] symbol
Instead of grouping everything into a single [kernel] bucket?
- Arnaldo
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: perf top using /proc/kcore
2013-10-15 2:09 perf top using /proc/kcore Arnaldo Carvalho de Melo
@ 2013-10-15 6:13 ` Adrian Hunter
0 siblings, 0 replies; 2+ messages in thread
From: Adrian Hunter @ 2013-10-15 6:13 UTC (permalink / raw)
To: Arnaldo Carvalho de Melo
Cc: David Ahern, Jiri Olsa, Namhyung Kim, Linux Kernel Mailing List
On 15/10/13 05:09, Arnaldo Carvalho de Melo wrote:
> Hi Adrian,
>
> While testing 'perf top -U' to reply a message in another thread
> I noticed that ksm symbols appeared as '[kernel]', and only when I tried
> 'perf top -U -v' to look at the DSO long name I noticed that it was...
> /proc/kcore.
>
> Question is: since we have access to /proc/modules, can't we
> parse that, as when we have access to vmlinux, and recreate the mmaps,
> etc, and see:
>
> [module] symbol
>
> Instead of grouping everything into a single [kernel] bucket?
I would suggest just splitting the maps and giving them names, rather than
splitting the dso as well. That would mean changing places that have:
map->dso->short_name
to
map->name ? map->name : map->dso->short_name
^ permalink raw reply [flat|nested] 2+ messages in thread
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