[Linux-cluster] Low parallel write performance for GFS
Rongfeng Tang
rf_tang at ncic.ac.cn
Mon Nov 15 03:47:55 UTC 2004
Hello everyone:
I want to test the GFS-6.0 by myself, the configuration is as
follows:
2 GNBD server each with a dedicated SCSI disk, configured into one pool,
1 gulm lock server
10 clients
GE network
using iozone ran read and write testing on each client.
the aggregate write performance I got only about 20% of raw device peformance (10MB/s),
even much more lower than what one client can get (20MB/S), what's problem with it?
Thanks a lot.
trf
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