Re: Mercurial 0.3 vs git benchmarks

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Linus Torvalds wrote:
> On Mon, 25 Apr 2005, Matt Mackall wrote:
>
>>Here are the results of checking in the first 12 releases of Linux 2.6
>>into empty repositories for Mercurial v0.3 (hg) and git-pasky-0.7.
>>This is on my 512M Pentium M laptop. Times are in seconds.

One difference is probably - mercurial appears to be using zlib's *default* compression of 6....

using zlib compression of 9 really impacts git...

as per http://www.gelato.unsw.edu.au/archives/git/0504/1988.html

>On a 700MHz p3, UDMA33, freebsd 5.3, ffs (soft updates) I get:

>compressor | levels (size, time to compress, time to uncompress)
>-----------+-------------------------------------------------------------------
>gzip       | 9 (28M, 1:19, 30), 6 (28M, 31.7, 30), 3 (30M, 26.1,28.7)
>           | 1 (31M, 23.6, 29.8)
>bzip2      | 9 (27M, 2:14, 37.4) 6 (27M, 2:11, 38.8) 3 (27M, 2:10,38.3)
>lzop       | 9 (32M, 2:15, 35.4) 7 (32M, 57.9, 40.3) 3 (39M, 36.0,44.4)

as per setting GIT_COMPRESSION 3 rather than Z_BEST_COMPRESSION

http://www.gelato.unsw.edu.au/archives/git/0504/1478.html



                user         system       real        du -sh
ver    files   hg    git    hg    git    hg    git    hg   git

2.6.0  15007 19.949 35.526 3.171 2.264 25.138 87.994 145M   89M
2.6.1    998  5.906  4.018 0.573 0.464 10.267  5.937 146M   99M
2.6.2   2370  9.696 13.051 0.752 0.652 12.970 15.167 150M  117M
2.6.3   1906 10.528 11.509 0.816 0.639 18.406 14.318 152M  135M
2.6.4   3185 11.140  7.380 0.997 0.731 15.265 12.412 156M  158M
2.6.5   2261 10.961  6.939 0.843 0.640 20.564  8.522 158M  177M
2.6.6   2642 11.803 10.043 0.870 0.678 22.360 11.515 162M  197M
2.6.7   3772 18.411 15.243 1.189 0.915 32.397 21.498 165M  227M
2.6.8   4604 20.922 16.054 1.406 1.041 39.622 25.056 172M  262M
2.6.9   4712 19.306 12.145 1.421 1.102 35.663 24.958 179M  297M
2.6.10  5384 23.022 18.154 1.393 1.182 40.947 32.085 186M  338M
2.6.11  5662 27.211 19.138 1.791 1.253 42.605 31.902 193M  379M


--

Mike Taht


  "Imagination is more important than knowledge.
	-- Albert Einstein"
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