Hello,
Can anyone provide suggestions (from experience, preferably) for steps to take following an OS install to be sure that performance of the system is as expected?
I'm thinking of something like running IOZone or some similar tool to verify that a small subset of hardware is performing within expected bounds. This would only be a means of spotting unusual problems (such as cache being disabled or DMA being disabled) that impact performance in non-obvious ways before we pass the system on to an internal customer for applications.
I know I could just grab IOZone and run it myself -- I'm just hoping maybe someone will read this and have some experience from which to give advise on a simple, streamlined procedure.
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by: nociPosted on 2009-09-23 at 00:14:10ID: 25400626
Nothing to add in the hardware department except you may want to verify your network setup too.
Netio is a nice tool for this (http://www.ars.de/ars/ars
(if auto-negitiate allways works (replug the cable a few times and rerun tests).
If auto-negotiate fails then some equipment goes to default Full-Duplex and some goes to Half-Duplex
(arguably more correct). That combination will break any network connection except some very low traffic IO.