##// END OF EJS Templates
perf: add command for measuring revlog chunk operations...
perf: add command for measuring revlog chunk operations Upcoming commits will teach revlogs to leverage the new compression engine API so that new compression formats can more easily be leveraged in revlogs. We want to be sure this refactoring doesn't regress performance. So this commit introduces "perfrevchunks" to explicitly test performance of reading, decompressing, and recompressing revlog chunks. Here is output when run on the mozilla-unified repo: $ hg perfrevlogchunks -c ! read ! wall 0.346603 comb 0.350000 user 0.340000 sys 0.010000 (best of 28) ! read w/ reused fd ! wall 0.337707 comb 0.340000 user 0.320000 sys 0.020000 (best of 30) ! read batch ! wall 0.013206 comb 0.020000 user 0.000000 sys 0.020000 (best of 221) ! read batch w/ reused fd ! wall 0.013259 comb 0.030000 user 0.010000 sys 0.020000 (best of 222) ! chunk ! wall 1.909939 comb 1.910000 user 1.900000 sys 0.010000 (best of 6) ! chunk batch ! wall 1.750677 comb 1.760000 user 1.740000 sys 0.020000 (best of 6) ! compress ! wall 5.668004 comb 5.670000 user 5.670000 sys 0.000000 (best of 3) $ hg perfrevlogchunks -m ! read ! wall 0.365834 comb 0.370000 user 0.350000 sys 0.020000 (best of 26) ! read w/ reused fd ! wall 0.350160 comb 0.350000 user 0.320000 sys 0.030000 (best of 28) ! read batch ! wall 0.024777 comb 0.020000 user 0.000000 sys 0.020000 (best of 119) ! read batch w/ reused fd ! wall 0.024895 comb 0.030000 user 0.000000 sys 0.030000 (best of 118) ! chunk ! wall 2.514061 comb 2.520000 user 2.480000 sys 0.040000 (best of 4) ! chunk batch ! wall 2.380788 comb 2.380000 user 2.360000 sys 0.020000 (best of 5) ! compress ! wall 9.815297 comb 9.820000 user 9.820000 sys 0.000000 (best of 3) We already see some interesting data, such as how much slower non-batched chunk reading is and that zlib compression appears to be >2x slower than decompression. I didn't have the data when I wrote this commit message, but I ran this on Mozilla's NFS-based Mercurial server and the time for reading with a reused file descriptor was faster. So I think it is worth testing both with and without file descriptor reuse so we can make informed decisions about recycling file descriptors.

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test-convert-svn-encoding.t
144 lines | 5.4 KiB | text/troff | Tads3Lexer
/ tests / test-convert-svn-encoding.t
#require svn svn-bindings
$ cat >> $HGRCPATH <<EOF
> [extensions]
> convert =
> EOF
$ svnadmin create svn-repo
$ svnadmin load -q svn-repo < "$TESTDIR/svn/encoding.svndump"
Convert while testing all possible outputs
$ hg --debug convert svn-repo A-hg --config progress.debug=1
initializing destination A-hg repository
reparent to file://*/svn-repo (glob)
run hg sink pre-conversion action
scanning source...
found trunk at 'trunk'
found tags at 'tags'
found branches at 'branches'
found branch branch\xc3\xa9 at 5 (esc)
found branch branch\xc3\xa9e at 6 (esc)
scanning: 1/4 revisions (25.00%)
reparent to file://*/svn-repo/trunk (glob)
fetching revision log for "/trunk" from 4 to 0
parsing revision 4 (2 changes)
parsing revision 3 (4 changes)
parsing revision 2 (3 changes)
parsing revision 1 (3 changes)
no copyfrom path, don't know what to do.
'/branches' is not under '/trunk', ignoring
'/tags' is not under '/trunk', ignoring
scanning: 2/4 revisions (50.00%)
reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
fetching revision log for "/branches/branch\xc3\xa9" from 5 to 0 (esc)
parsing revision 5 (1 changes)
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
found parent of branch /branches/branch\xc3\xa9 at 4: /trunk (esc)
scanning: 3/4 revisions (75.00%)
reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
fetching revision log for "/branches/branch\xc3\xa9e" from 6 to 0 (esc)
parsing revision 6 (1 changes)
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
found parent of branch /branches/branch\xc3\xa9e at 5: /branches/branch\xc3\xa9 (esc)
scanning: 4/4 revisions (100.00%)
scanning: 5/4 revisions (125.00%)
scanning: 6/4 revisions (150.00%)
sorting...
converting...
5 init projA
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@1
converting: 0/6 revisions (0.00%)
committing changelog
4 hello
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@2
converting: 1/6 revisions (16.67%)
reparent to file://*/svn-repo/trunk (glob)
scanning paths: /trunk/\xc3\xa0 0/3 paths (0.00%) (esc)
scanning paths: /trunk/\xc3\xa0/e\xcc\x81 1/3 paths (33.33%) (esc)
scanning paths: /trunk/\xc3\xa9 2/3 paths (66.67%) (esc)
committing files:
\xc3\xa0/e\xcc\x81 (esc)
getting files: \xc3\xa0/e\xcc\x81 1/2 files (50.00%) (esc)
\xc3\xa9 (esc)
getting files: \xc3\xa9 2/2 files (100.00%) (esc)
committing manifest
committing changelog
3 copy files
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@3
converting: 2/6 revisions (33.33%)
scanning paths: /trunk/\xc3\xa0 0/4 paths (0.00%) (esc)
gone from -1
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/trunk (glob)
scanning paths: /trunk/\xc3\xa8 1/4 paths (25.00%) (esc)
copied to \xc3\xa8 from \xc3\xa9@2 (esc)
scanning paths: /trunk/\xc3\xa9 2/4 paths (50.00%) (esc)
gone from -1
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/trunk (glob)
scanning paths: /trunk/\xc3\xb9 3/4 paths (75.00%) (esc)
mark /trunk/\xc3\xb9 came from \xc3\xa0:2 (esc)
getting files: \xc3\xa0/e\xcc\x81 1/4 files (25.00%) (esc)
getting files: \xc3\xa9 2/4 files (50.00%) (esc)
committing files:
\xc3\xa8 (esc)
getting files: \xc3\xa8 3/4 files (75.00%) (esc)
\xc3\xa8: copy \xc3\xa9:6b67ccefd5ce6de77e7ead4f5292843a0255329f (esc)
\xc3\xb9/e\xcc\x81 (esc)
getting files: \xc3\xb9/e\xcc\x81 4/4 files (100.00%) (esc)
\xc3\xb9/e\xcc\x81: copy \xc3\xa0/e\xcc\x81:a9092a3d84a37b9993b5c73576f6de29b7ea50f6 (esc)
committing manifest
committing changelog
2 remove files
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/trunk@4
converting: 3/6 revisions (50.00%)
scanning paths: /trunk/\xc3\xa8 0/2 paths (0.00%) (esc)
gone from -1
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/trunk (glob)
scanning paths: /trunk/\xc3\xb9 1/2 paths (50.00%) (esc)
gone from -1
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/trunk (glob)
getting files: \xc3\xa8 1/2 files (50.00%) (esc)
getting files: \xc3\xb9/e\xcc\x81 2/2 files (100.00%) (esc)
committing files:
committing manifest
committing changelog
1 branch to branch?
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/branches/branch?@5
converting: 4/6 revisions (66.67%)
reparent to file://*/svn-repo/branches/branch%C3%A9 (glob)
scanning paths: /branches/branch\xc3\xa9 0/1 paths (0.00%) (esc)
committing changelog
0 branch to branch?e
source: svn:afeb9c47-92ff-4c0c-9f72-e1f6eb8ac9af/branches/branch?e@6
converting: 5/6 revisions (83.33%)
reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
scanning paths: /branches/branch\xc3\xa9e 0/1 paths (0.00%) (esc)
committing changelog
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
reparent to file://*/svn-repo (glob)
reparent to file://*/svn-repo/branches/branch%C3%A9e (glob)
updating tags
committing files:
.hgtags
committing manifest
committing changelog
run hg sink post-conversion action
$ cd A-hg
$ hg up
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
Check tags are in UTF-8
$ cat .hgtags
e94e4422020e715add80525e8f0f46c9968689f1 branch\xc3\xa9e (esc)
f7e66f98380ed1e53a797c5c7a7a2616a7ab377d branch\xc3\xa9 (esc)
$ cd ..