upstream/mercurial-mirror Files · tests/test-mq-pull-from-bundle.t

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.

Klaus Koch - - Load All Authors

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        $ cat <<EOF >> $HGRCPATH

        > [extensions]

        > mq=

        > [alias]

        > tlog = log --template "{rev}: {desc}\\n"

        > theads = heads --template "{rev}: {desc}\\n"

        > tincoming = incoming --template "{rev}: {desc}\\n"

        > EOF

      Setup main:

        $ hg init base

        $ cd base

        $ echo "One" > one

        $ hg add

        adding one

        $ hg ci -m "main: one added"

        $ echo "++" >> one

        $ hg ci -m "main: one updated"

      Bundle main:

        $ hg bundle --base=null ../main.hg

        2 changesets found

        $ cd ..

      Incoming to fresh repo:

        $ hg init fresh

        $ hg -R fresh tincoming main.hg

        comparing with main.hg

        0: main: one added

        1: main: one updated

        $ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' || true

        $ hg -R fresh tincoming bundle:fresh+main.hg

        comparing with bundle:fresh+main.hg

        0: main: one added

        1: main: one updated

      Setup queue:

        $ cd base

        $ hg qinit -c

        $ hg qnew -m "patch: two added" two.patch

        $ echo two > two

        $ hg add

        adding two

        $ hg qrefresh

        $ hg qcommit -m "queue: two.patch added"

        $ hg qpop -a

        popping two.patch

        patch queue now empty

      Bundle queue:

        $ hg -R .hg/patches bundle --base=null ../queue.hgq

        1 changesets found

        $ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' || true

        $ cd ..

      Clone base:

        $ hg clone base copy

        updating to branch default

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cd copy

        $ hg qinit -c

      Incoming queue bundle:

        $ hg -R .hg/patches tincoming ../queue.hgq

        comparing with ../queue.hgq

        0: queue: two.patch added

        $ test -f .hg/hg-bundle* && echo 'temp. bundle file remained' || true

      Pull queue bundle:

        $ hg -R .hg/patches pull --update ../queue.hgq

        pulling from ../queue.hgq

        requesting all changes

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 3 changes to 3 files

        merging series

        2 files updated, 1 files merged, 0 files removed, 0 files unresolved

        $ test -f .hg/patches/hg-bundle* && echo 'temp. bundle file remained' || true

        $ hg -R .hg/patches theads

        0: queue: two.patch added

        $ hg -R .hg/patches tlog

        0: queue: two.patch added

        $ hg qseries

        two.patch

        $ cd ..

      Clone base again:

        $ hg clone base copy2

        updating to branch default

        1 files updated, 0 files merged, 0 files removed, 0 files unresolved

        $ cd copy2

        $ hg qinit -c

      Unbundle queue bundle:

        $ hg -R .hg/patches unbundle --update ../queue.hgq

        adding changesets

        adding manifests

        adding file changes

        added 1 changesets with 3 changes to 3 files

        merging series

        2 files updated, 1 files merged, 0 files removed, 0 files unresolved

        $ hg -R .hg/patches theads

        0: queue: two.patch added

        $ hg -R .hg/patches tlog

        0: queue: two.patch added

        $ hg qseries

        two.patch

        $ cd ..

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				$ cat <<EOF >> $HGRCPATH
				> [extensions]
				> mq=
				> [alias]
				> tlog = log --template "{rev}: {desc}\\n"
				> theads = heads --template "{rev}: {desc}\\n"
				> tincoming = incoming --template "{rev}: {desc}\\n"
				> EOF

				Setup main:

				$ hg init base
				$ cd base
				$ echo "One" > one
				$ hg add
				adding one
				$ hg ci -m "main: one added"
				$ echo "++" >> one
				$ hg ci -m "main: one updated"

				Bundle main:

				$ hg bundle --base=null ../main.hg
				2 changesets found

				$ cd ..

				Incoming to fresh repo:

				$ hg init fresh

				$ hg -R fresh tincoming main.hg
				comparing with main.hg
				0: main: one added
				1: main: one updated
				$ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' \|\| true

				$ hg -R fresh tincoming bundle:fresh+main.hg
				comparing with bundle:fresh+main.hg
				0: main: one added
				1: main: one updated


				Setup queue:

				$ cd base
				$ hg qinit -c
				$ hg qnew -m "patch: two added" two.patch
				$ echo two > two
				$ hg add
				adding two
				$ hg qrefresh
				$ hg qcommit -m "queue: two.patch added"
				$ hg qpop -a
				popping two.patch
				patch queue now empty

				Bundle queue:

				$ hg -R .hg/patches bundle --base=null ../queue.hgq
				1 changesets found
				$ test -f ./fresh/.hg/hg-bundle* && echo 'temp. bundle file remained' \|\| true

				$ cd ..


				Clone base:

				$ hg clone base copy
				updating to branch default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cd copy
				$ hg qinit -c

				Incoming queue bundle:

				$ hg -R .hg/patches tincoming ../queue.hgq
				comparing with ../queue.hgq
				0: queue: two.patch added
				$ test -f .hg/hg-bundle* && echo 'temp. bundle file remained' \|\| true

				Pull queue bundle:

				$ hg -R .hg/patches pull --update ../queue.hgq
				pulling from ../queue.hgq
				requesting all changes
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 3 changes to 3 files
				merging series
				2 files updated, 1 files merged, 0 files removed, 0 files unresolved
				$ test -f .hg/patches/hg-bundle* && echo 'temp. bundle file remained' \|\| true

				$ hg -R .hg/patches theads
				0: queue: two.patch added

				$ hg -R .hg/patches tlog
				0: queue: two.patch added

				$ hg qseries
				two.patch

				$ cd ..


				Clone base again:

				$ hg clone base copy2
				updating to branch default
				1 files updated, 0 files merged, 0 files removed, 0 files unresolved
				$ cd copy2
				$ hg qinit -c

				Unbundle queue bundle:

				$ hg -R .hg/patches unbundle --update ../queue.hgq
				adding changesets
				adding manifests
				adding file changes
				added 1 changesets with 3 changes to 3 files
				merging series
				2 files updated, 1 files merged, 0 files removed, 0 files unresolved

				$ hg -R .hg/patches theads
				0: queue: two.patch added

				$ hg -R .hg/patches tlog
				0: queue: two.patch added

				$ hg qseries
				two.patch

				$ cd ..