store: use fast C implementation of encodedir() if it's available
For a netbeans clone on Windows 7 x64:
Encoding all paths in the fncache:
Before:
$ hg perffncacheencode
! wall 3.639000 comb 3.634823 user 3.634823 sys 0.000000 (best of 3)
After:
$ hg perffncacheencode
! wall 3.470000 comb 3.463222 user 3.463222 sys 0.000000 (best of 3)
Writing fncache:
Before:
$ hg perffncachewrite
! wall 0.103000 comb 0.093601 user 0.093601 sys 0.000000 (best of 95)
After:
$ hg perffncachewrite
! wall 0.081000 comb 0.078001 user 0.062400 sys 0.015600 (best of 100)
pathencode: new C module with fast encodedir() function
Not yet used (will be enabled in a later patch).
This patch is a stripped down version of patches originally created by
Bryan O'Sullivan <bryano@fb.com>
store: add multiline doctest case for encodedir()
a followup to
64c6a0d4d4bd
store: optimize fncache._load a bit by dirdecoding the contents in one go
For a netbeans clone on Windows 7 x64:
Before:
$ hg perffncacheload
! wall 0.124000 comb 0.124801 user 0.124801 sys 0.000000 (best of 76)
After:
$ hg perffncacheload
! wall 0.096000 comb 0.093601 user 0.078001 sys 0.015600 (best of 97)