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Re: XML and libsvn_wc performance

From: Branko Čibej <brane_at_xbc.nu>
Date: 2003-11-12 03:26:14 CET

Max Bowsher wrote:

>Branko Čibej wrote:
>
>
>>Jason Voegele wrote:
>>
>>
>>
>>>I've been browsing through the issues list looking for things I
>>>might be able to lend a hand toward, and performance of checkouts
>>>has piqued my interest.
>>>
>>>Issues #1429 and #1490 indicate that XML parsing in libsvn_wc has a
>>>fairly significant impact on performance. What seems to me an
>>>obvious (partial) solution has not yet been mentioned, perhaps
>>>because I am not seeing the whole picture, or the solution I'm
>>>proposing is too radical a change for this stage of Subversion
>>>development. What I'm getting at is why use XML for
>>>the .svn/entries files at all? Why not replace it with a simpler
>>>file format and a lex/yacc based parser?
>>>
>>>
>>>
>>>
>>Ouch. Let's stay away from lex or yacc, we have enough dependencies as
>>it is.
>>
>>
>
>Um... svn *already* uses bison or yacc. libsvn_subr/getdate.y
>
>
getdate.cw right back at you. Guess why.

-- 
Brane Čibej   <brane_at_xbc.nu>   http://www.xbc.nu/brane/
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Received on Wed Nov 12 03:29:02 2003

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