RedHat 7.1 performance/scalability tuning

Hubbard, David dhubbard at dino.hostasaurus.com
Wed Aug 29 08:44:01 CDT 2001


If tuning for performance, run qmail or postfix instead of sendmail.

Dave

-----Original Message-----
From: Jeppie Sumpter [mailto:Jeppie.Sumpter at wku.edu]
Sent: Wednesday, August 29, 2001 9:36 AM
To: linux poweredge
Subject: RedHat 7.1 performance/scalability tuning


I am working on a set of new mail servers and need to improve some of
the default characteristics.  I've already recompiled my glic to allow
the number of threads to be increased and now I am looking into some
file system tuning. I have found several references on increasing the
number of open files allowed but these are for 2.2.x kernels and not
2.4.x kernels.

The things I've seen to change are:
echo 128000 > /proc/sys/fs/inode-max
echo 64000 > /proc/sys/fs/file-max
ulimit -n 64000
or
editing the /etc/sysctl.conf file as sticking in some values.

The problem is that /proc/sys/fs/inode-max does not exist on these
systems and the MAX_INODE definitions do not exist in the source. Is
specifying the maximum number of inode no longer necessary in the 2.4.x
kernels?

Much Thanks,
-- 
Jeppie Sumpter              MCSE, MCNE
Network Specialist           CCNA, CCSE
Western Kentucky University    SCSA, RHCE



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