[PATCH] Add --statistics option to gtags

[Hideki IWAMOTO]

Hi.

This patch add --statistics option to gtags.
The output is as follows.

$ foreach cpumask ( 1 3 )
foreach? foreach label ( gtags gtags-2pass )
foreach? echo ==== cpumask:$cpumask label:$label ====
foreach? rm -fr linux-2.6.31; tar xfj ~/download/linux/linux-2.6.31.tar.bz2; 
sync
foreach? (cd linux-2.6.31; env GTAGSLABEL=$label taskset $cpumask gtags 
--statistics)
foreach? end
foreach? end
==== cpumask:1 label:gtags ====
period                  user[sec] system[sec] elapsed[sec] %CPU
----------------------- --------- ----------- ------------ ----
Time of creating GTAGS     17.237       2.876       25.743 78.1
Time of creating GRTAGS    52.967       6.900       68.607 87.3
Time of creating GSYMS     46.519       6.328       57.816 91.4
----------------------- --------- ----------- ------------ ----
The entire time           116.723      16.105      152.166 87.3
==== cpumask:1 label:gtags-2pass ====
period                            user[sec] system[sec] elapsed[sec] %CPU
--------------------------------- --------- ----------- ------------ ----
Time of creating GTAGS               17.349       2.836       25.707 78.5
Time of creating GRTAGS and GSYMS    75.681       8.137       92.310 90.8
--------------------------------- --------- ----------- ------------ ----
The entire time                      93.030      10.973      118.018 88.1
==== cpumask:3 label:gtags ====
period                  user[sec] system[sec] elapsed[sec]  %CPU
----------------------- --------- ----------- ------------ -----
Time of creating GTAGS     16.909       2.868       24.126  82.0
Time of creating GRTAGS    51.471       6.768       58.139 100.2
Time of creating GSYMS     45.807       6.076       51.598 100.6
----------------------- --------- ----------- ------------ -----
The entire time           114.187      15.713      133.863  97.0
==== cpumask:3 label:gtags-2pass ====
period                            user[sec] system[sec] elapsed[sec]  %CPU
--------------------------------- --------- ----------- ------------ -----
Time of creating GTAGS               17.217       2.804       24.136  83.0
Time of creating GRTAGS and GSYMS    73.109       7.468       66.939 120.4
--------------------------------- --------- ----------- ------------ -----
The entire time                      90.326      10.273       91.074 110.5


Diffstat:
 gtags/gtags.c   |   12 +++++++++++-
 gtags/manual.in |    3 +++
 2 files changed, 14 insertions(+), 1 deletion(-)




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Hideki IWAMOTO  address@hidden

20091116-gtags-statistics.patch
Description: Binary data