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A Scalable, User-Friendly Source Control System.
37d980f070
Our invert() function was too clever to not take length into account. I could fix the problem by appending '\xff' as a terminator (opposite to '\0'), but it turned out to be slower than simple multi-pass sorting. New implementation is pretty straightforward, which just calls sort() from the last key. We can do that since Python sort() is guaranteed to be stable. It doesn't sound nice to call sort() multiple times, but actually it is faster. That's probably because we have fewer Python codes in hot loop, and can avoid heavy string and list manipulation. revset #0: sort(0:10000, 'branch') 0) 0.412753 1) 0.393254 revset #1: sort(0:10000, '-branch') 0) 0.455377 1) 0.389191 85% revset #2: sort(0:10000, 'date') 0) 0.408082 1) 0.376332 92% revset #3: sort(0:10000, '-date') 0) 0.406910 1) 0.380498 93% revset #4: sort(0:10000, 'desc branch user date rev') 0) 0.542996 1) 0.486397 89% revset #5: sort(0:10000, '-desc -branch -user -date -rev') 0) 0.965032 1) 0.518426 53% |
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| contrib | ||
| doc | ||
| hgext | ||
| hgext3rd | ||
| i18n | ||
| mercurial | ||
| tests | ||
| .editorconfig | ||
| .hgignore | ||
| .hgsigs | ||
| CONTRIBUTORS | ||
| COPYING | ||
| hg | ||
| hgeditor | ||
| hgweb.cgi | ||
| Makefile | ||
| README | ||
| setup.py | ||
Mercurial ========= Mercurial is a fast, easy to use, distributed revision control tool for software developers. Basic install: $ make # see install targets $ make install # do a system-wide install $ hg debuginstall # sanity-check setup $ hg # see help Running without installing: $ make local # build for inplace usage $ ./hg --version # should show the latest version See https://mercurial-scm.org/ for detailed installation instructions, platform-specific notes, and Mercurial user information.