Date: Fri, 29 Dec 1995 07:30:11 -0800 (PST) From: Bruce Evans <bde> To: CVS-committers, cvs-usrsbin Subject: cvs commit: src/usr.sbin/kgmon kgmon.8 kgmon.c Message-ID: <199512291530.HAA25575@freefall.freebsd.org>
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bde 95/12/29 07:30:09
Modified: lib/libc/gmon mcount.c
sys/i386/conf files.i386
sys/i386/include asmacros.h profile.h
sys/kern subr_prof.c
sys/libkern mcount.c
sys/sys gmon.h
usr.bin Makefile
usr.sbin/config config.8 mkmakefile.c
usr.sbin/kgmon kgmon.8 kgmon.c
Added: sys/i386/isa prof_machdep.c
usr.bin/gprof4 Makefile
Log:
Implemented non-statistical kernel profiling. This is based on
looking at a high resolution clock for each of the following events:
function call, function return, interrupt entry, interrupt exit,
and interesting branches. The differences between the times of
these events are added at appropriate places in a ordinary histogram
(as if very fast statistical profiling sampled the pc at those
places) so that ordinary gprof can be used to analyze the times.
gmon.h:
Histogram counters need to be 4 bytes for microsecond resolutions.
They will need to be larger for the 586 clock.
The comments were vax-centric and wrong even on vaxes. Does anyone
disagree?
gprof4.c:
The standard gprof should support counters of all integral sizes
and the size of the counter should be in the gmon header. This
hack will do until then. (Use gprof4 -u to examine the results
of non-statistical profiling.)
config/*:
Non-statistical profiling is configured with `config -pp'.
`config -p' still gives ordinary profiling.
kgmon/*:
Non-statistical profiling is enabled with `kgmon -B'. `kgmon -b'
still enables ordinary profiling (and distables non-statistical
profiling) if non-statistical profiling is configured.
Revision Changes Path
1.4 +148 -8 src/lib/libc/gmon/mcount.c
1.122 +2 -1 src/sys/i386/conf/files.i386
1.6 +64 -28 src/sys/i386/include/asmacros.h
1.5 +39 -15 src/sys/i386/include/profile.h
1.16 +90 -5 src/sys/kern/subr_prof.c
1.5 +3 -179 src/sys/libkern/mcount.c
1.8 +57 -9 src/sys/sys/gmon.h
1.64 +2 -1 src/usr.bin/Makefile
1.6 +5 -0 src/usr.sbin/config/config.8
1.14 +6 -2 src/usr.sbin/config/mkmakefile.c
1.3 +9 -2 src/usr.sbin/kgmon/kgmon.8
1.6 +27 -10 src/usr.sbin/kgmon/kgmon.c
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