From: "Frank Ch. Eigler" <fche@elastic.org>
To: David Smith <dsmith@redhat.com>
Cc: systemtap@sources.redhat.com
Subject: Re: precompiled probing scenarios
Date: Fri, 20 Oct 2006 19:32:00 -0000 [thread overview]
Message-ID: <20061020193244.GC17981@elastic.org> (raw)
In-Reply-To: <453922E8.4000608@redhat.com>
Hi -
On Fri, Oct 20, 2006 at 02:26:32PM -0500, David Smith wrote:
> [...]
> Pass 4: compiled C into "stap_d833fd040735ddde57a23bebb4456542_201.ko"
Is that "_201" at the end the getuid()? I wonder if maybe that could
be hashed into the content instead.
> Copying /tmp/stapYrsXWC/stap_d833fd040735ddde57a23bebb4456542_201.ko to
> /home/dsmith/.stap_cache/d/8/stap_d833fd040735ddde57a23bebb4456542_201.ko
> Copying /tmp/stapYrsXWC/stap_d833fd040735ddde57a23bebb4456542_201.c to
> /home/dsmith/.stap_cache/d/8/stap_d833fd040735ddde57a23bebb4456542_201.c
These messages should probably show up only under -vv (verbosity 2)
or higher.
> [...]
> # stap -v -e 'probe begin { log("hi") }' [...]
> Pass 2: analyzed script: 1 probe(s), 1 function(s), 0 global(s) in
> 10usr/0sys/11real ms.
> Using cached result
> "/home/dsmith/.stap_cache/d/8/stap_d833fd040735ddde57a23bebb4456542_201.ko"
> as "/tmp/stapJFisJO/stap_d833fd040735ddde57a23bebb4456542_201.ko"
This "Using cached result" part could be rephrased as a pair:
Pass 3: skipped translation
Pass 4: reused cached module stap_deadbeef
> [...] A module (currently) gets pulled from the cache after pass 2,
> even if '-p3' or '-p4' was specified on the command line.
The translator would still need to spit out (regenerate) the C source
code for a -p3 run.
- FChE
next prev parent reply other threads:[~2006-10-20 19:32 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-10-20 18:44 Stone, Joshua I
2006-10-20 19:26 ` David Smith
2006-10-20 19:32 ` Frank Ch. Eigler [this message]
2006-10-20 19:50 ` David Smith
2006-10-20 20:13 ` Frank Ch. Eigler
2006-10-23 20:36 ` David Smith
-- strict thread matches above, loose matches on Subject: below --
2006-10-25 18:54 Stone, Joshua I
2006-10-26 1:07 ` Frank Ch. Eigler
2006-10-24 0:29 Stone, Joshua I
2006-10-24 15:16 ` David Smith
2006-10-20 20:51 Stone, Joshua I
2006-10-19 20:33 Stone, Joshua I
2006-10-19 20:41 ` David Smith
2006-10-06 19:08 Frank Ch. Eigler
2006-10-06 20:33 ` David Smith
2006-10-06 20:40 ` Frank Ch. Eigler
2006-10-19 19:49 ` David Smith
2006-10-19 21:53 ` Frank Ch. Eigler
2006-10-20 13:50 ` David Smith
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