[cvsnt] High server load on update!

Terris Linenbach noreply at nowhere.nwh
Tue Oct 22 23:49:37 BST 2002

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One more bit of info:  We've tried both ntserver and sspi protocols.
Doesn't make a difference.

"Terris Linenbach" <noreply at nowhere.nwh> wrote in message
news:ap4htl$sn6$1 at sisko.nodomain.org...
> The same thing happens to me regularly.  The CPU gets pegged to 100% when
> updating a folder that contains sub-folders.  Which specific file it
> to hang on is random (i.e., the last file output in the WinCVS window).
> There are no dangling locks prior to the update and only one client is
> the server.  Disk has gigabytes of free space, more than the raw CVS files
> occupy.  I'm using hardware RAID (basic two-drive mirroring).
> The cvs.exe process never completes and has to be killed using kill.exe.
> I have tried using WinCVS and Tortoise as clients without compression.
> I'm using 57j on the server.
> "Tony Hoyle" <tmh at nodomain.org> wrote in message
> news:pan.2002. at nodomain.org...
> > On Tue, 22 Oct 2002 13:28:44 +0200, Anders Truelsen wrote:
> >
> >
> > > Updates on the other hand really pull the teeth out.
> > > - A single update of a large workspace pushes the CPU to 100% for up
> > > 30 seconds.
> > > Why is that? - I never observed that behavior on the old machine.
> >
> > Update is a two-step operation.  In the simplest case the names &
> > datestamps of the files in each client directory are sent and the server
> > then decides what (if anything) to send to a client.  If the client
> > something has changed on its side it sends the suspect file for
> > diff/collision detection, which is stored temporarily on the server.
> >
> > This can use up a fair bit of temporary drive space in the worst case
> > (such as all files appearing modified).
> >
> > It shouldn't affect CPU much though.  I'd check that your IDE interface
> > has DMA enabled - if it's on PIO it'll be using up all the CPU accessing
> > the disk.
> >
> > Tony
> >

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