CFS Performance
From: Parkin Frank - fparki (fparki_at_acxiom.co.uk)
Date: 08/26/03
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Date: Tue, 26 Aug 2003 14:35:06 +0100 To: "'tru64-unix-managers@ornl.gov'" <tru64-unix-managers@ornl.gov>
TruCluster v5.1a / v5.1b
We are currently building and testing ES45 clusters utilising EVA storage.
We have noticed that a single "dd" can overwhelm the memory channel
inter-connect when reading/writing to a disk that is not locally served by
CFS e.g. a drop from 70mb/s to 20mb/s.
Has anyone performed any benchmarking and are willing to share?
We are particularly interested in AdvFS performance and whether more memory
will be required to buffer read/writes (when the IC is saturated) to
maintain disk performance.
Many thanks
Frank
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