[svn.haxx.se] · SVN Dev · SVN Users · SVN Org · TSVN Dev · TSVN Users · Subclipse Dev · Subclipse Users · this month's index

Re: general server performance (was Re: apache svn server memory usage?)

From: Branko Čibej <brane_at_xbc.nu>
Date: 2003-07-02 18:10:12 CEST

Mukund wrote:

>On Tue, Jul 01, 2003 at 10:42:43AM -0500, Ben Collins-Sussman wrote:
>| every 2 seconds!) There's been discusion about keeping the
>| repository open for the whole TCP/IP "connection session", and
>| Sander has experimented with this, but it didn't seem to do much.
>| Still need to investigate.
>Hi Sussman
>I am going to try this patch when Sander looks at Greg Stein's comments
>(in this thread) for his patch and releases a new one if he thinks
>modifications are due.
>I am not sure how keeping the repository open will not help, as the
>performance degradation is due to syncs of the accumulated
>transactions when the DB is closed at the end of every HTTP request.
>A checkout has the disk chugging like when an OS thrashes.
Let's just make one thing clear here -- the fsync that happens at every
BDB transaction commit has nothing to do with how many times you open
the database. Keeping the DB open will help, yes, but it won't
significantly decrease the number of fsyncs.

Brane Čibej   <brane_at_xbc.nu>   http://www.xbc.nu/brane/
To unsubscribe, e-mail: dev-unsubscribe@subversion.tigris.org
For additional commands, e-mail: dev-help@subversion.tigris.org
Received on Wed Jul 2 18:11:06 2003

This is an archived mail posted to the Subversion Dev mailing list.

This site is subject to the Apache Privacy Policy and the Apache Public Forum Archive Policy.