Mercurial > hg
view tests/test-remotefilelog-gcrepack.t @ 43252:32187ae9eeb3
copies: simplify the handling of merges
Instead of stacking copies for both parent on the head, we move copies outside
of the heap into a dedicated dictionary. The two side of merge can we merged
sooner, making the algorithm simpler.
This simplicity reflect in the heap structure and speed up the execution for
copies involving a large amount of merges.
Here are timing for perfpathcopies of multiple revision pairs.
- filelog: timing using filelog (with the introrev condition dropped)
- base: this series base
- before: the parent of this changeset
- after: this changeset
revision: large amount; added files: large amount; rename small amount; c3b14617fbd7 9ba6ab77fd29
filelog: ! wall 3.679613 comb 3.680000 user 3.580000 sys 0.100000 (median of 3)
base: ! wall 8.884369 comb 8.880000 user 8.850000 sys 0.030000 (median of 3)
before: ! wall 8.443747 comb 8.420000 user 8.410000 sys 0.010000 (median of 3)
after: ! wall 4.697917 comb 4.690000 user 4.660000 sys 0.030000 (median of 3)
revision: large amount; added files: small amount; rename small amount; c3b14617fbd7 f650a9b140d2
filelog: ! wall 0.003357 comb 0.010000 user 0.010000 sys 0.000000 (median of 781)
base: ! wall 12.398524 comb 12.400000 user 12.330000 sys 0.070000 (median of 3)
before: ! wall 10.852593 comb 10.850000 user 10.800000 sys 0.050000 (median of 3)
after: ! wall 6.750832 comb 6.750000 user 6.640000 sys 0.110000 (median of 3)
revision: large amount; added files: large amount; rename large amount; 08ea3258278e d9fa043f30c0
filelog: ! wall 2.754687 comb 2.760000 user 2.650000 sys 0.110000 (median of 4)
base: ! wall 1.423166 comb 1.420000 user 1.400000 sys 0.020000 (median of 8)
before: ! wall 1.068041 comb 1.060000 user 1.050000 sys 0.010000 (median of 10)
after: ! wall 1.045916 comb 1.050000 user 1.040000 sys 0.010000 (median of 10)
revision: small amount; added files: large amount; rename large amount; df6f7a526b60 a83dc6a2d56f
filelog: ! wall 1.552293 comb 1.550000 user 1.510000 sys 0.040000 (median of 6
base: ! wall 0.022662 comb 0.020000 user 0.020000 sys 0.000000 (median of 128)
before: ! wall 0.021111 comb 0.020000 user 0.020000 sys 0.000000 (median of 139)
after: ! wall 0.021577 comb 0.020000 user 0.020000 sys 0.000000 (median of 138)
revision: small amount; added files: large amount; rename small amount; 4aa4e1f8e19a 169138063d63
filelog: ! wall 1.500983 comb 1.500000 user 1.420000 sys 0.080000 (median of 7)
base: ! wall 0.006956 comb 0.010000 user 0.010000 sys 0.000000 (median of 392)
before: ! wall 0.004356 comb 0.010000 user 0.010000 sys 0.000000 (median of 675)
after: ! wall 0.004329 comb 0.000000 user 0.000000 sys 0.000000 (median of 682)
revision: small amount; added files: small amount; rename small amount; 4bc173b045a6 964879152e2e
filelog: ! wall 0.011745 comb 0.020000 user 0.020000 sys 0.000000 (median of 250)
base: ! wall 0.000156 comb 0.000000 user 0.000000 sys 0.000000 (median of 17180)
before: ! wall 0.000100 comb 0.000000 user 0.000000 sys 0.000000 (median of 26912)
after: ! wall 0.000105 comb 0.000000 user 0.000000 sys 0.000000 (median of 25689)
revision: medium amount; added files: large amount; rename medium amount; c95f1ced15f2 2c68e87c3efe
filelog: ! wall 3.228230 comb 3.230000 user 3.110000 sys 0.120000 (median of 4)
base: ! wall 0.997640 comb 1.000000 user 0.980000 sys 0.020000 (median of 10)
before: ! wall 0.778291 comb 0.780000 user 0.780000 sys 0.000000 (median of 13)
after: ! wall 0.706594 comb 0.710000 user 0.710000 sys 0.000000 (median of 15)
revision: medium amount; added files: medium amount; rename small amount; d343da0c55a8 d7746d32bf9d
filelog: ! wall 1.052501 comb 1.060000 user 1.040000 sys 0.020000 (median of 10
base: ! wall 0.214519 comb 0.220000 user 0.220000 sys 0.000000 (median of 45)
before: ! wall 0.160804 comb 0.160000 user 0.160000 sys 0.000000 (median of 62)
after: ! wall 0.163736 comb 0.160000 user 0.160000 sys 0.000000 (median of 60)
Differential Revision: https://phab.mercurial-scm.org/D7069
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
---|---|
date | Wed, 02 Oct 2019 13:43:27 -0400 |
parents | f22131315791 |
children | fac25de8cbec |
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#require no-windows $ . "$TESTDIR/remotefilelog-library.sh" $ hg init master $ cd master $ cat >> .hg/hgrc <<EOF > [remotefilelog] > server=True > EOF $ echo x > x $ hg commit -qAm x $ echo y > y $ rm x $ hg commit -qAm DxAy $ echo yy > y $ hg commit -qAm y $ cd .. $ hgcloneshallow ssh://user@dummy/master shallow -q 1 files fetched over 1 fetches - (1 misses, 0.00% hit ratio) over *s (glob) # Set the prefetchdays config to zero so that all commits are prefetched # no matter what their creation date is. $ cd shallow $ cat >> .hg/hgrc <<EOF > [remotefilelog] > prefetchdays=0 > EOF $ cd .. # Prefetch all data and repack $ cd shallow $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=all() > EOF $ hg prefetch 2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob) $ hg repack $ sleep 0.5 $ hg debugwaitonrepack >/dev/null 2>%1 $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger) # Test garbage collection during repack $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=tip > gcrepack=True > nodettl=86400 > EOF $ hg repack $ sleep 0.5 $ hg debugwaitonrepack >/dev/null 2>%1 $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/a4e1d094ec2aee8a08a4d6d95a13c634cc7d7394.datapack # Ensure that file 'x' was garbage collected. It should be GCed because it is not in the keepset # and is old (commit date is 0.0 in tests). Ensure that file 'y' is present as it is in the keepset. $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/a4e1d094ec2aee8a08a4d6d95a13c634cc7d7394: y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 Total: 3 3 (0.0% bigger) # Prefetch all data again and repack for later garbage collection $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs=all() > EOF $ hg prefetch 2 files fetched over 1 fetches - (2 misses, 0.00% hit ratio) over *s (glob) $ hg repack $ sleep 0.5 $ hg debugwaitonrepack >/dev/null 2>%1 $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger) # Test garbage collection during repack. Ensure that new files are not removed even though they are not in the keepset # For the purposes of the test the TTL of a file is set to current time + 100 seconds. i.e. all commits in tests have # a date of 1970 and therefore to prevent garbage collection we have to set nodettl to be farther from 1970 than we are now. $ cat >> .hg/hgrc <<EOF > [remotefilelog] > bgprefetchrevs= > nodettl=$(($(date +%s) + 100)) > EOF $ hg repack $ sleep 0.5 $ hg debugwaitonrepack >/dev/null 2>%1 $ find $CACHEDIR | sort | egrep ".datapack|.histpack" $TESTTMP/hgcache/master/packs/7bcd2d90b99395ca43172a0dd24e18860b2902f9.histpack $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37.datapack # Ensure that all file versions were prefetched $ hg debugdatapack `ls -ct $TESTTMP/hgcache/master/packs/*.datapack | head -n 1` $TESTTMP/hgcache/master/packs/dc8f8fdc76690ce27791ce9f53a18da379e50d37: x: Node Delta Base Delta Length Blob Size 1406e7411862 000000000000 2 2 Total: 2 2 (0.0% bigger) y: Node Delta Base Delta Length Blob Size 50dbc4572b8e 000000000000 3 3 076f5e2225b3 50dbc4572b8e 14 2 Total: 17 5 (240.0% bigger)