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Re: [PATCH 0/9] Make git-svn fetch ~1.7x faster

From
Adam Roben <aroben@apple.com>
Date
Oct 23, 2007, 06:13 UTC
Message-ID
<471D911C.6070704@apple.com>
In-Reply-To
<20071023060812.GA30978@glandium.org>
Mike Hommey wrote:
Show 12 quoted lines
> On Mon, Oct 22, 2007 at 10:46:28PM -0700, Adam Roben wrote:
>   
>> This patch series makes git-svn fetch about 1.7x faster by reducing the number
>> of forks/execs that occur for each file retrieved from Subversion. To do so, a
>> few new options are added to git-cat-file and git-hash-object to allow
>> continuous input on stdin and continuous output on stdout, so that one instance
>> of each of these commands can be kept running for the duration of the fetch.
>>     
>
> You don't need to do this to avoid forks. Just use git-fast-import
> instead.
>

I agree that fast-import is probably ultimately a better solution for this, but given that git-svn currently uses the output of every command it forks off and that fast-import doesn't seem to give the same output, changing git-svn to use fast-import would be a fairly sweeping change that I didn't feel comfortable making without a better understanding of git-svn.

-Adam
Previous: Mike HommeyNext: Sam Vilain
Message 23 of 24 in “Make git-svn fetch ~1.7x faster”
  1. 0/9 Make git-svn fetch ~1.7x fasterAdam Roben, Oct 23, 2007
  2. 1/9 Add tests for git cat-fileAdam Roben, Oct 23, 2007
  3. 2/9 git-cat-file: Small refactor of cmd_cat_fileAdam Roben, Oct 23, 2007
  4. 3/9 git-cat-file: Make option parsing a little more flexibleAdam Roben, Oct 23, 2007
  5. 4/9 git-cat-file: Add --stdin optionAdam Roben, Oct 23, 2007
  6. 5/9 git-cat-file: Add --separator optionAdam Roben, Oct 23, 2007
  7. 6/9 Add tests for git hash-objectAdam Roben, Oct 23, 2007
  8. 7/9 git-hash-object: Add --stdin-paths optionAdam Roben, Oct 23, 2007
  9. 8/9 Git.pm: Add command_bidi_pipe and command_close_bidi_pipeAdam Roben, Oct 23, 2007
  10. 9/9 git-svn: Make fetch ~1.7x fasterAdam Roben, Oct 23, 2007
  11. Johannes SixtOct 23, 2007
  12. Eric WongOct 24, 2007
  13. Adam RobenOct 24, 2007
  14. Shawn O. PearceOct 23, 2007
  15. Adam RobenOct 23, 2007
  16. Shawn O. PearceOct 23, 2007
  17. Eric WongOct 24, 2007
  18. Johannes SixtOct 23, 2007
  19. Brian DowningOct 24, 2007
  20. Adam RobenOct 24, 2007
  21. Johannes SixtOct 23, 2007
  22. Mike HommeyOct 23, 2007
  23. Adam RobenOct 23, 2007
  24. Sam VilainOct 24, 2007

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