from a linux-admin page/post:
Mon Jul 3 14:22:45 PDT 2006
10 clients started
.......................+......+.......+++++....+*********
Throughput 182.083 MB/sec (NB=227.604 MB/sec 1820.83 MBit/sec) 10 procs
Mon Jul 3 14:22:52 PDT 2006
When the logbufs and logbsize options are added, throughput increases from
92.7404 MB/sec to 96.4556 MB/sec. When the log is moved to an external
device the throughput nearly doubles to 182.083 MB/sec. Clearly, the
external log increases file system performance under dbench, a program
that
has a large amount of metadata activity.
Tuning the I/O Scheduler
--
has anyone done any recent testing?
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