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annotate tests/test-mq-qsave.t @ 50400:95acba2c29f6

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encoding: avoid quadratic time complexity when json-encoding non-UTF8 strings Apparently the code uses "+=" with a bytes object, which is linear-time, so the whole encoding is quadratic-time. This patch makes us use a bytearray object, instead, which has a(n amortized-)constant-time append operation. The encoding is still not particularly fast, but at least a 10MB file takes tens of seconds, not many hours to encode.
author Arseniy Alekseyev <aalekseyev@janestreet.com>
date Mon, 06 Mar 2023 11:27:57 +0000
parents 55c6ebd11cb9
children
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12324
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
1 $ echo "[extensions]" >> $HGRCPATH
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
2 $ echo "mq=" >> $HGRCPATH
2817
ff3edd1c1e27 Add basic qsave/qrestore test.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
3
49621
55c6ebd11cb9 tests: run many tests in $TESTTMP/repo instead of $TESTTMP
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 12324
diff changeset
4 $ hg init repo
55c6ebd11cb9 tests: run many tests in $TESTTMP/repo instead of $TESTTMP
Arseniy Alekseyev <aalekseyev@janestreet.com>
parents: 12324
diff changeset
5 $ cd repo
2817
ff3edd1c1e27 Add basic qsave/qrestore test.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
6
12324
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
7 $ echo 'base' > base
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
8 $ hg ci -Ambase
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
9 adding base
2817
ff3edd1c1e27 Add basic qsave/qrestore test.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
10
12324
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
11 $ hg qnew -mmqbase mqbase
2817
ff3edd1c1e27 Add basic qsave/qrestore test.
Brendan Cully <brendan@kublai.com>
parents:
diff changeset
12
12324
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
13 $ hg qsave
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
14 $ hg qrestore 2
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
15 restoring status: hg patches saved state
b701610f6c56 tests: unify some of test-mq*
Adrian Buehlmann <adrian@cadifra.com>
parents: 2990
diff changeset
16