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mach_absolute_time
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