(i'll describe my situation first, the question is at the end)
I'm running a database server (MySQL) with quite a few connections:
[root@xxxx irq]# ps ax | grep mysqld | wc -l
67
[root@xxxx irq]#
I suspect the kernel spends a good deal of time in context switches.
There's also some SCSI activity and some network traffic.
The CPU usage is spent mostly in kernel space ("system"); the user space
is tipically not quite so busy.
Basically, the system receives data almost constantly over the network,
via a custom daemon that dispatches it and sends it to MySQL. The
database is doing plain INSERT DELAYED's most of the time (although some
occasional SELECT's are issued from Apache/PHP to spice up things every
now and then).
At this moment, the system runs on Red Hat 7.2 (actually, the SGI patch
with XFS).
My system is a 2xPIII/700, 1 GB RAM, 4x36GB SCSI in a RAID5, Mylex
DAC960.
Are there any serious reasons to upgrade to 7.3?
Does the kernel in 7.3 has some clear improvements over the 7.2 that
make a difference in my situation? If that's true, what are those
improvements?
--
Florin Andrei
"The world is full of bad security systems designed by people
who read 'Applied Cryptography'." - Bruce Schneier
--
redhat-list mailing list
unsubscribe mailto:[EMAIL PROTECTED]?subject=unsubscribe
https://listman.redhat.com/mailman/listinfo/redhat-list
