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binary tracing
- From: Martin Hunt <hunt at redhat dot com>
- To: systemtap at sources dot redhat dot com
- Date: Fri, 31 Mar 2006 10:23:48 -0800
- Subject: binary tracing
- Organization: Red Hat Inc.
I am implementing step 1, just replacing the _stp_printf with one that
can write binary suing "%b". Numbers look good so far.
S : printf 5 integers 3926 2134 1633
S : printf 10 integers 5667 3054 2325
S : binary printf 5 integers 1937 1170 880
S : binary printf 10 integers 2031 1203 925
I hacked up another test which says using the translator optimization
Tom proposed could cut up to 150ns off the 5 integer results. Transport
optimizations should cut those a bit further. Keep in mind, these
include kprobe overhead which is
S : empty probe 1575 789 589
Martin