view tests/test-mq-subrepo-svn.t @ 23031:3c0983cc279e

i18n: cache the result of every gettext call

In looking at profiler output for 'hg log' on mozilla-central, I
noticed we spent a _huge_ amount of time in gettext relative to what
it's doing. Caching provides a roughly 15% performance improvement
even on repositories as small as hg.

== hg repo on linux ==

Before:
  %   cumulative      self
 time    seconds   seconds  name
  5.05      0.19      0.19  i18n.py:62:gettext
  4.84      0.18      0.18  revlog.py:88:decompress
  2.95      0.17      0.11  changelog.py:201:node
  2.32      0.09      0.09  ui.py:577:write
  2.11      0.08      0.08  i18n.py:72:gettext
  2.11      0.08      0.08  obsolete.py:196:_fm0readmarkers
  1.89      0.07      0.07  obsolete.py:569:_load
  1.68      0.63      0.06  localrepo.py:29:__get__

real	0m4.026s
user	0m3.993s
sys	0m0.034s

After:
  %   cumulative      self
 time    seconds   seconds  name
  8.05      0.26      0.26  revlog.py:88:decompress
  2.68      0.22      0.09  color.py:395:write
  2.20      0.07      0.07  obsolete.py:196:_fm0readmarkers
  1.95      0.06      0.06  obsolete.py:174:_fm0readmarkers
  1.95      0.06      0.06  ui.py:577:write
  1.95      0.06      0.06  util.py:1228:datestr
  1.71      0.06      0.06  utf_8.py:16:decode
  1.71      0.06      0.06  revlog.py:273:__len__

real	0m3.519s
user	0m3.447s
sys	0m0.073s


== mozilla-central repo on linux ==
Before:
  %   cumulative      self
 time    seconds   seconds  name
  7.72      2.35      2.35  revlog.py:88:decompress
  4.46      1.36      1.36  i18n.py:62:gettext
  2.22      0.67      0.67  i18n.py:72:gettext
  2.19      1.14      0.67  changelog.py:201:node
  2.16      0.66      0.66  ui.py:577:write
  1.96      0.60      0.60  utf_8.py:16:decode
  1.93      1.97      0.59  color.py:395:write
  1.85      0.81      0.56  changelog.py:136:tip

real	0m30.822s
user	0m30.660s
sys	0m0.149s

After:
  %   cumulative      self
 time    seconds   seconds  name
  9.82      2.49      2.49  revlog.py:88:decompress
  2.67      1.31      0.68  localrepo.py:29:__get__
  2.57      0.65      0.65  utf_8.py:16:decode
  2.48      1.01      0.63  changelog.py:201:node
  2.10      0.82      0.53  changelog.py:136:tip
  2.01      0.51      0.51  ui.py:577:write
  1.91      0.49      0.49  util.py:1232:datestr
  1.85      1.65      0.47  color.py:395:write

real	0m25.619s
user	0m25.446s
sys	0m0.166s

== cpython repo on os x =
Before:
  %   cumulative      self
 time    seconds   seconds  name
  5.05      1.35      1.35  cmdutil.py:982:_show
  4.59      1.22      1.22  revlog.py:274:__len__
  3.98      1.06      1.06  i18n.py:62:gettext
  3.91      1.04      1.04  revlog.py:1016:revision
  3.68      0.98      0.98  revlog.py:337:parents
  3.45      0.92      0.92  revlog.py:88:decompress
  2.91      0.78      0.78  revlog.py:309:rev
  2.62      0.70      0.70  revlog.py:1033:revision

real	0m30.414s
user	0m28.145s
sys	0m0.541s



After:
  %   cumulative      self
 time    seconds   seconds  name
  7.98      1.66      1.66  cmdutil.py:982:_show
  6.83      1.42      1.42  changelog.py:46:decodeextra
  5.18      1.08      1.08  revlog.py:274:__len__
  3.94      0.82      0.82  revlog.py:1016:revision
  3.41      0.71      0.71  revlog.py:309:rev
  3.32      0.69      0.69  revlog.py:88:decompress
  2.99      0.63      0.62  revlog.py:1033:revision
  2.69      0.56      0.56  revlog.py:341:start

real	0m22.811s
user	0m21.883s
sys	0m0.397s

#require svn13

  $ echo "[extensions]" >> $HGRCPATH
  $ echo "mq=" >> $HGRCPATH
  $ echo "[diff]" >> $HGRCPATH
  $ echo "nodates=1" >> $HGRCPATH

fn to create new repository, and cd into it
  $ mkrepo() {
  >     hg init $1
  >     cd $1
  >     hg qinit
  > }


handle svn subrepos safely

  $ svnadmin create svn-repo-2499

  $ SVNREPOPATH=`pwd`/svn-repo-2499/project
#if windows
  $ SVNREPOURL=file:///`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
#else
  $ SVNREPOURL=file://`$PYTHON -c "import urllib, sys; sys.stdout.write(urllib.quote(sys.argv[1]))" "$SVNREPOPATH"`
#endif

  $ mkdir -p svn-project-2499/trunk
  $ svn import -m 'init project' svn-project-2499 "$SVNREPOURL"
  Adding         svn-project-2499/trunk (glob)
  
  Committed revision 1.

qnew on repo w/svn subrepo
  $ mkrepo repo-2499-svn-subrepo
  $ svn co "$SVNREPOURL"/trunk sub
  Checked out revision 1.
  $ echo 'sub = [svn]sub' >> .hgsub
  $ hg add .hgsub
  $ hg status -S -X '**/format'
  A .hgsub
  $ hg qnew -m0 0.diff
  $ cd sub
  $ echo a > a
  $ svn add a
  A         a
  $ svn st
  A*    a (glob)
  $ cd ..
  $ hg status -S        # doesn't show status for svn subrepos (yet)
  $ hg qnew -m1 1.diff
  abort: uncommitted changes in subrepository sub
  [255]

  $ cd ..