Greetings List,
I recently moved our squid installation from SuSE 8 to RHEL ES 3 and the performance
has decreased significantly. I am looking here for pointers of what you think may be
the difference. I attempted to keep the configuration largely the same, and the
hardware is 100% the same (same system).
The performance with SuSE:
peak median response time = .250 s
peak requests per minute = 930
Now on RHEL ES 3:
peak median response time > .800 s
same numbers of requests per minute
We are using a ton of memory, but I think we are in good shape:
Page faults with physical i/o: 553
Number of HTTP requests received: 2975409
[EMAIL PROTECTED] home]$ free -m
total used free shared buffers cached
Mem: 3778 3709 69 0 415 2209
-/+ buffers/cache: 1084 2694
Swap: 8997 5 8992
I am not running named on this system, so I am wondering if this is an area for
improvement. How do these DNS times look?:
DNS Lookups: 0.05313 0.06657
One thing that I know is different is the file system of the cache_dirs. They are now
ext3 while before they were reiserfs, store io type is aufs.
I did not attempt to preserve the cache_dirs so the cache before was 2 x 45 GB while
the cache now has grown to only 2 x 3,259 MB (online about 2 weeks now).
Does anyone have any suggestions for me?
Many thanks in advance,
Grant
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