[PATCH] change output of htags --statistics
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[PATCH] change output of htags --statistics
by Hideki IWAMOTO
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Hi.
Currently, `htags --statistics' outputs elapsed times with the accuracy of second. It is preferable that the CPU time is output and the elapsed time is output by higher accuracy. This patch changes `htags --statistics' as follows. #if HAVE_GETRUSAGE && HAVE_GETTIMEOFDAY Use gettimeofday() to get elapsed time. Use getrusage() to get CPU time. #elif HAVE_TIMES #if HAVE_GETTIMEOFDAY Use gettimeofday() to get elapsed time. Use times() to get CPU time. #else Use times() to get elapsed time and CPU time. #endif #else #if HAVE_GETTIMEOFDAY Use gettimeofday() to get elapsed time. #else Use time() to get elapsed time. #endif #endif The output in each case is as follows. ======== Case 1 ============================================================= #define HAVE_GETRUSAGE 1 #define HAVE_GETTIMEOFDAY 1 $ htags --statistics period user[sec] system[sec] elapsed[sec] %CPU --------------------------------- --------- ----------- ------------ ----- Time of making duplicate entries 1.988 0.184 1.420 153.0 Time of making function index 0.272 0.036 0.281 109.7 Time of making file index 0.028 0.012 0.042 96.3 Time of making include file index 1.120 0.092 1.216 99.7 Time of making hypertext 18.701 1.888 15.474 133.1 The entire time 22.113 2.220 18.440 132.0 ======== Case 2 ============================================================= #undef HAVE_GETRUSAGE #define HAVE_GETTIMEOFDAY 1 #define HAVE_TIMES 1 $ htags --statistics period user[sec] system[sec] elapsed[sec] %CPU --------------------------------- --------- ----------- ------------ ----- Time of making duplicate entries 1.970 0.170 1.527 140.1 Time of making function index 0.290 0.020 0.278 111.6 Time of making file index 0.030 0.010 0.041 97.8 Time of making include file index 1.110 0.080 1.201 99.1 Time of making hypertext 18.060 1.980 15.221 131.7 The entire time 21.460 2.260 18.276 129.8 ======== Case 3 ============================================================= #undef HAVE_GETRUSAGE #undef HAVE_GETTIMEOFDAY #define HAVE_TIMES 1 $ htags --statistics period user[sec] system[sec] elapsed[sec] %CPU --------------------------------- --------- ----------- ------------ ----- Time of making duplicate entries 2.020 0.190 1.550 142.6 Time of making function index 0.260 0.040 0.280 107.1 Time of making file index 0.020 0.030 0.040 125.0 Time of making include file index 1.070 0.110 1.170 100.9 Time of making hypertext 18.580 2.190 15.310 135.7 The entire time 21.950 2.560 18.360 133.5 ======== Case 4 ============================================================= #undef HAVE_GETRUSAGE #define HAVE_GETTIMEOFDAY 1 #undef HAVE_TIMES $ htags --statistics period elapsed[sec] --------------------------------- ------------ Time of making duplicate entries 1.405 Time of making function index 0.294 Time of making file index 0.042 Time of making include file index 1.157 Time of making hypertext 15.555 The entire time 18.461 ======== Case 5 ============================================================= #undef HAVE_GETRUSAGE #undef HAVE_GETTIMEOFDAY #undef HAVE_TIMES $ htags --statistics period elapsed[sec] --------------------------------- ------------ Time of making duplicate entries 2.000 Time of making function index 0.000 Time of making file index 0.000 Time of making include file index 1.000 Time of making hypertext 15.000 The entire time 18.000 Diffstat: configure.ac | 2 htags/htags.c | 50 +---- libutil/Makefile.am | 4 libutil/global.h | 1 libutil/statistics.c | 493 +++++++++++++++++++++++++++++++++++++++++++++++++++ libutil/statistics.h | 84 ++++++++ libutil/strbuf.c | 15 + libutil/strbuf.h | 4 8 files changed, 616 insertions(+), 37 deletions(-) ---- Hideki IWAMOTO h-iwamoto@... _______________________________________________ Bug-global mailing list Bug-global@... http://lists.gnu.org/mailman/listinfo/bug-global |
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Re: [PATCH] change output of htags --statistics
by Hideki IWAMOTO
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Re: [PATCH] change output of htags --statistics
by Shigio YAMAGUCHI-2
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Re: [PATCH] change output of htags --statistics
by Hideki IWAMOTO
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> There might not be necessity of it.
The patch was simplified by dropping support of times. Attached is updated version. configure.ac | 2 htags/htags.c | 50 +---- libutil/Makefile.am | 4 libutil/global.h | 1 libutil/statistics.c | 436 +++++++++++++++++++++++++++++++++++++++++++++++++++ libutil/statistics.h | 98 +++++++++++ libutil/strbuf.c | 15 + libutil/strbuf.h | 4 8 files changed, 573 insertions(+), 37 deletions(-) On Wed, 04 Nov 2009 08:19:17 +0900, Shigio YAMAGUCHI wrote... > Hi > > > #elif HAVE_TIMES > > > > I don't know whether support of times(2) is needed. > > Is there anybody who is using the system that supports times > > and doesn't support gettimeofday and getrusage? > > There might not be necessity of it. > In FreeBSD, we can see the following description at the head of the DESCRIPTION of times(2). > > "This interface is obsoleted by getrusage(2) and gettimeofday(2)." > > As for either, those who should use times(2) is small number of people even in case of being. > -- > Shigio YAMAGUCHI <shigio@...> > PGP fingerprint: D1CB 0B89 B346 4AB6 5663 C4B6 3CA5 BBB3 57BE DDA3 Hideki IWAMOTO h-iwamoto@... _______________________________________________ Bug-global mailing list Bug-global@... http://lists.gnu.org/mailman/listinfo/bug-global |
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