Date: Sat, 11 Feb 1995 00:11:54 -0800 From: hasty@netcom.com (Amancio Hasty Jr) To: hasty@netcom.com, julian@tfs.com Cc: FreeBSD-hackers@wcarchive.cdrom.com Subject: Re: My iozone results Message-ID: <199502110811.AAA23129@netcom14.netcom.com>
next in thread | raw e-mail | index | archive | help
Well, here is quick and simple disklabel:
bettina# disklabel -r sd1
# /dev/rsd1c:
type: SCSI
disk:
label: MBR based label
flags:
bytes/sector: 512
sectors/track: 4096
tracks/cylinder: 1
sectors/cylinder: 4096
cylinders: 1013
rpm: 5400
interleave: 1
trackskew: 0
cylinderskew: 0
headswitch: 0 # milliseconds
track-to-track seek: 0 # milliseconds
drivedata: 0
8 partitions:
# size offset fstype [fsize bsize bps/cpg]
a: 122880 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 29)
b: 81920 122880 swap # (Cyl. 30 - 49)
c: 4108600 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 1003*)
d: 4108600 0 unused 0 0 # (Cyl. 0 - 1003*)
e: 122880 204800 4.2BSD 1024 8192 16 # (Cyl. 50 - 79)
f: 3780608 327680 4.2BSD 1024 8192 16 # (Cyl. 80 - 1002)
The iozone results are for partition "a":
IOZONE: auto-test mode
MB reclen bytes/sec written bytes/sec read
1 512 2064888 3728270
1 1024 3355443 4473924
1 2048 3834792 4473924
1 4096 3947580 4793490
1 8192 4067203 4628197
2 512 2711469 3728270
2 1024 3627506 4628197
2 2048 4260880 4793490
2 4096 4473924 4793490
2 8192 4473924 4880644
4 512 2840586 3754342
4 1024 3754342 4836674
4 2048 4511520 5017485
4 4096 4793490 5017485
4 8192 4836674 5064819
8 512 2848121 2878664
8 1024 3848537 4925421
8 2048 4648233 5088823
8 4096 4948119 5113056
8 8192 5017485 5113056
16 512 2844349 3940336
16 1024 3747789 4982560
16 2048 4628197 5149840
16 4096 5064819 5149840
16 8192 5088823 5149840
Completed series of tests
Now if I can only get double of that performance...
Amancio
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199502110811.AAA23129>