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parsers: inline fields of dirstate values in C version...
parsers: inline fields of dirstate values in C version Previously, while unpacking the dirstate we'd create 3-4 new CPython objects for most dirstate values: - the state is a single character string, which is pooled by CPython - the mode is a new object if it isn't 0 due to being in the lookup set - the size is a new object if it is greater than 255 - the mtime is a new object if it isn't -1 due to being in the lookup set - the tuple to contain them all In some cases such as regular hg status, we actually look at all the objects. In other cases like hg add, hg status for a subdirectory, or hg status with the third-party hgwatchman enabled, we look at almost none of the objects. This patch eliminates most object creation in these cases by defining a custom C struct that is exposed to Python with an interface similar to a tuple. Only when tuple elements are actually requested are the respective objects created. The gains, where they're expected, are significant. The following tests are run against a working copy with over 270,000 files. parse_dirstate becomes significantly faster: $ hg perfdirstate before: wall 0.186437 comb 0.180000 user 0.160000 sys 0.020000 (best of 35) after: wall 0.093158 comb 0.100000 user 0.090000 sys 0.010000 (best of 95) and as a result, several commands benefit: $ time hg status # with hgwatchman enabled before: 0.42s user 0.14s system 99% cpu 0.563 total after: 0.34s user 0.12s system 99% cpu 0.471 total $ time hg add new-file before: 0.85s user 0.18s system 99% cpu 1.033 total after: 0.76s user 0.17s system 99% cpu 0.931 total There is a slight regression in regular status performance, but this is fixed in an upcoming patch.
Alexander Plavin - - Load All Authors

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filelog.tmpl
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{header}
<title>{repo|escape}: {file|escape} history</title>
<link rel="alternate" type="application/atom+xml"
href="{url|urlescape}atom-log/tip/{file|urlescape}" title="Atom feed for {repo|escape}:{file}" />
<link rel="alternate" type="application/rss+xml"
href="{url|urlescape}rss-log/tip/{file|urlescape}" title="RSS feed for {repo|escape}:{file}" />
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<div class="container">
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<a href="{logourl}">
<img src="{staticurl|urlescape}{logoimg}" alt="mercurial" /></a>
</div>
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<img class="atom-logo" src="{staticurl|urlescape}feed-icon-14x14.png" alt="atom feed"></a>
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