When collecting network traces to solve performance problems, we need to balance the need to capture enough data to re-construct the upper protocols with the need to limit the amount of trace data collected overall. When capturing NFS traffic, the packet size can grow to be quite large, since the NFS packets will...
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Posts Tagged ‘ Performance ’
10GbE
asm
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Collecting NFS trace data for performance tasks.
Presentation to RTP OpenSolaris group on Filebench.
On Janurary 5th 2010 I gave a short presentation on the FileBench workload modeling tool to the RTP OpenSolaris group. Click on the slide to advance. The “Slides” link will take you to an HTML version.
Slides
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Analysing NetApp sysstat PT1: The CP columns
The CP type is displayed in the CP/ty column in the output of sysstat. The CP type column contains two pieces of data. The cause of the CP (the CP type) – the first character, and the ‘phase’. The second character. In the output below, the first row shows a...
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