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9500s
2010 Sep 10
11
Large directory performance
...les/sec. That leaves me wondering 2 things. How can we get 5,000 files/sec for anything and why is our performance dropping off so suddenly at after 20k files?
Here is our setup:
All IO servers are Dell PowerEdge 2950s. 2 8-core sockets with X5355 @ 2.66GHz and 16Gb of RAM.
The data is on DDN S2A 9550s with 8+2 RAID configuration connected directly with 4Gb Fibre channel.
They are running RHEL 4.5, Lustre 6.7.2-ddn3, kernel 2.6.18-128.7.1.el5.ddn1.l1.6.7.2.ddn3smp
As a side note the users code is Parflow, developed at LLNL. The files are SILO files. We have as many as 1.4 million files in a sing...