Vince, any ideas?
Nick
On Sun, Nov 29, 2009 at 10:42 AM, Valentin Pistol
<valentin.pis...@gmail.com> wrote:
> Hi,
>
> I am trying to use the bbv tool in Valgrind to look at block level
> similarity between threads.
> I am testing this with Valgrind 3.6.0 SVN together with Apache 2.2.14 with
> mpm_worker thread model.
>
> Although I use %p to tag the output files, something seems unusual. I get pc
> files which seem to have no corresponding bb files.
>
> To make this more clear the output looks like:
> apache_bb.out.11325
> apache_bb.out.11325.2
> apache_bb.out.11325.3
> apache_bb.out.11325.4
> apache_bb.out.11325.5
> apache_bb.out.11325.6
> [...]
> apache_pc.out.11325
> apache_pc.out.11328
> apache_pc.out.11329
> apache_pc.out.11330
> apache_pc.out.11331
> apache_pc.out.11495
> apache_pc.out.11630
> apache_pc.out.11631
> apache_pc.out.11828
> apache_pc.out.11832
> apache_pc.out.11839
> apache_pc.out.11845
> apache_pc.out.12089
> [...]
>
> So apache_bb.out.11325.2 I would assume is the 2nd thread in 11325 pid. If
> they share the same code segment (apache_pc.out.11325), then what are the
> other pc files for?
> Could the pc files be for each thread and %p prints the thread pid omitting
> the parent pid (11325)
>
> Here's a part of my bash script:
>
> VALGRIND_TARGET="$APACHE/bin/httpd"
> INTERVAL_SIZE=100000
>
> VALGRIND_CMD="$VALGRIND --tool=exp-bbv
> --bb-out-file=$RESULTS/%q{BENCH}_bb.out.%p
> --pc-out-file=$RESULTS/%q{BENCH}_pc.out.%p --interval-size=$INTERVAL_SIZE
> --time-stamp=yes --num-callers=30 --track-fds=yes --trace-children=no
> $VALGRIND_TARGET"
>
> Could someone offer a few pointers please?
>
> Thank you,
> V
>
> ------------------------------------------------------------------------------
> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day
> trial. Simplify your report design, integration and deployment - and focus
> on
> what you do best, core application coding. Discover what's new with
> Crystal Reports now. http://p.sf.net/sfu/bobj-july
> _______________________________________________
> Valgrind-users mailing list
> Valgrind-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/valgrind-users
>
>
------------------------------------------------------------------------------
Return on Information:
Google Enterprise Search pays you back
Get the facts.
http://p.sf.net/sfu/google-dev2dev
_______________________________________________
Valgrind-users mailing list
Valgrind-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/valgrind-users
