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t/perf/lib-pack: use fast-import checkpoint to create packs
We currently use fast-import only to create a large number of objects, and then run O(n) invocations of pack-objects to turn them into packs. We can do this faster by just asking fast-import to checkpoint and create a pack for each (after telling it not to turn loose tiny packs). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -9,15 +9,10 @@ create_packs () {
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print "data <<EOF";
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print "$_";
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print "EOF";
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print "checkpoint"
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}
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' "$@" |
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git fast-import &&
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git cat-file --batch-all-objects --batch-check='%(objectname)' |
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while read sha1
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do
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echo $sha1 | git pack-objects .git/objects/pack/pack
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done
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git fast-import
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}
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# create a large number of packs, disabling any gc which might
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@ -25,5 +20,6 @@ create_packs () {
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setup_many_packs () {
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git config gc.auto 0 &&
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git config gc.autopacklimit 0 &&
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git config fastimport.unpacklimit 0 &&
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create_packs 500
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}
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