Displaying 4 results from an estimated 4 matches for "evaltime".
2009 Sep 09
10
dtrace overhead and proper measuring technique
I''m trying to time a function within Firefoxwith a pid$target probe
[2]. e.g
dtrace -Zqw -x dynvarsize=64m -x evaltime=preinit -p 13954 -s menu-
construct.d -s sigcont.d
elapsed: 12.7942481ms
cpu : 7.7911194ms
count : 40 times
I''m also measuring Firefox startup time by running it arguments like
this:
... file:///Users/joelr/work/mozilla/startup/startup.html#`python -c
''import time; pri...
2009 Oct 23
2
Using dapptrace. Can't seem to trace user functions with defaults or specifying -u<lib>
Hi Folks,
I''m trying to get to grips with dapptrace, running it on my Mac.
Everything seems pretty straightforward, except for - of course - what
I''m trying to do.
I want to focus in on my code but I can''t seem to be able to output
just the functions I want, i.e. user functions.
The -U option gives everything. Too much of course.
Leaving that blank means the
2006 Jun 03
8
dtrace causing sigtrap?
Just to let people know what my big picture is, I''m trying to write a script
that will let me run a program, and name a progeny of that program
that I want to debug. My script should find the first occurrence
of that progeny, and run it until it finishes initializing the
runtime linker, but stop it before it runs any shared library startup
routines. (Failing that, I''d be okay
2009 Aug 28
13
putting a running app into trace mode
Suppose I have a USDT probe in Firefox and that I''m trying to catch
the startup with a probe like this:
proc:::exec-success
/execname == "firefox-bin"/
{
start = timestamp;
}
and stop tracing when Firefox hits this USDT probe:
mozilla:::main-entry
{
exit(0);
}
How do I put the running firefox-bin into "trace mode" so that my USDT
probe fires?
Thanks, Joel