Thank you for the replies all. I have tried your suggestions and return with more data.
Nscd service was configured correctly, but wasn't running by default, so I started it.
Using dd I tested HD write speeds with syslog turned off. Depending on the block size, I got between 1 and 172 MB/s, with a 1k block being optimal. Using vmstat with syslogging turned on, I found we are writing an average of 750 blocks/s (< 1 MB/s) while it is running. This is very small compared to the tested maximum, so it seems like disk contention should not be an issue? Or am I reading my results wrong? I also tried turning off (ext3) journaling.
Load averages around 2, but it has dual quad cores so that should not matter either?
I am just confused because syslog is such a simple protocol, it seems like it should not be having this problem.
Received on Mon Feb 07 2011 - 20:24:50 CET
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