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Re: v1.5.x - Merging Very Slow

From: Mark Eichin <eichin_at_gmail.com>
Date: Wed, 28 Jan 2009 18:28:28 -0500

On Wed, Jan 28, 2009 at 10:15 AM, Dale Kinder <Dale.Kinder_at_civica.co.uk> wrote:
> After upgrading subversion from v1.4.4 to v1.5.4 merging is extremely slow.
> On v1.4.4 it was taking 3 seconds to merge 3 files with 1 line changes.
> Since upgrading, it now takes around 22 minutes to carry out the same
> merge. I've tried the same test against v1.5.5 and the issue is still
> present.

Take a look at how much memory it's using - I've been running into a
problem with 1.5.x (.4 and .5 definitely) where a not-very-large (but
flat and heavily merged) directory causes the client to use between 1G
and 3G of RAM - so on a machine with 1G, it starts swapping and takes
20m+ to cherry pick a 10-line change - the same change on a machine
with 4G finishes in under a minute. (We had one instance that failed
entirely, because you can only get 3G per process on a 32-bit
linux...) Unfortunately I haven't reproduced it from scratch.


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Received on 2009-01-29 00:29:17 CET

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