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Re: Disk performance issue - CVS on AIX
From: |
iain . mees |
Subject: |
Re: Disk performance issue - CVS on AIX |
Date: |
Fri, 26 Sep 2008 10:01:59 +0100 |
Bill,
We run a massive CVS repository here at British Airways on AIX5.3. I have
customised it significantly and it is running in a chroot jail rather than
native for security reasons.
Running from /tmp is not something I have ever heard of, or would
recommend (/tmp is for temporary files, not applications). CVS is not
really CPU bound, but can be rather i/o bound when it comes to checking a
number of items in/out. It also tends to use /tmp frequently as a
temporary storage area. As your repository is also in /tmp I would be
inclined to say that your i/o is out performing your disk capability.
If I remember correctly, you can change the cvs temp area (during compile
I think). but your most sensible thing would be to move your repository to
a proper filesystem, preferably on a different physical disk.
With regard to SSH being slow... If you are running OpenSSH, then try
making it running it as a daemon rather than via inetd. That way it
doesn't need to start for every connection as its already in storage.
Hope this helps
Iain
"Bill V Vickery" <wvvicke@regence.com>
Sent by: bug-cvs-bounces+iain.mees=ba.com@nongnu.org
26/09/2008 05:15
To
bug-cvs@nongnu.org
cc
Subject
Disk performance issue - CVS on AIX
Anyone aware of a disk performance issue with CVS in AIX 5.2, where
repository is located in /tmp and generating sufficient I/O load that it
brings rootvg disks to 100%, with essentially zero throughput. System
becomes unresponsive taking several minutes just to open a new ssh
session. Any comments/advice would be appreciated.
Kindest Regards,
Bill Vickery
RITS/UNIX Team lead
Office: (801) 333-5818
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