Date: Wed, 8 Nov 1995 16:12:23 -0600 (CST) From: faulkner@mpd.tandem.com (Boyd Faulkner) To: current@freebsd.org Subject: iozone and mount -o async Message-ID: <9511082212.AA25168@olympus>
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Can you test the fs mounted async with iozone? I am getting a slowdown
mounted async!
With my Maxtor 235M SCSI 1 drive mounted normally
iozone 32 gives
Writing the 32 Megabyte file, 'iozone.tmp'...41.687500 seconds
Reading the file...30.148438 seconds
IOZONE performance measurements:
804903 bytes/second for writing the file
1112974 bytes/second for reading the file
mounted with -o async
Writing the 32 Megabyte file, 'iozone.tmp'...46.992188 seconds
Reading the file...30.078125 seconds
IOZONE performance measurements:
714042 bytes/second for writing the file
1115575 bytes/second for reading the file
The drive is on an NCR SCSI controller on my ASUS PCI/SP3G 486 DX4 100 system.
Hmmm.
--
_______________________________________________________________________
Boyd Faulkner - faulkner@isd.tandem.com - http://cactus.org/~faulkner
_______________________________________________________________________
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