My Firewall where I don't care haw fast the HD is:
CSGate:~# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 2.86 seconds =44.76
MB/sec
Timing buffered disk reads: 64 MB in 4.21 seconds =15.20
MB/sec
My file server (I'm hoping will replace our NW4.11 someday):
csmule:~# hdparm -tT /dev/hda
/dev/hda:
Timing buffer-cache reads: 128 MB in 7.93 seconds = 16.14
MB/sec
Timing buffered disk reads: 64 MB in 6.18 seconds = 10.36
MB/sec
Hmm.. suspicious results: probably not enough free memory for a
proper test.
/dev/hdb:
Timing buffer-cache reads: 128 MB in 7.82 seconds = 16.37
MB/sec
Timing buffered disk reads: 64 MB in 6.65 seconds = 9.62
MB/sec
Hmm.. suspicious results: probably not enough free memory for a
proper test.
csmule:~# free
total used free shared buffers
cached
Mem: 160252 156112 4140 32752 118264
8412
-/+ buffers/cache: 29436 130816
Swap: 224896 2152 222744
I've heard this stuff is tweak-able. How do I? Where do I
start?
>>> Cory Petkovsek <[EMAIL PROTECTED]> 12/2/2000 9:13:14
PM >>>
<snip>
What kind of rates do you guys get with various hardware?
Controllers, Raid, IDE, mdma/udma 33/66/100...
Test your read speed under linux:
ide only: (tests cache and disk reads, independently)
hdparm -tT /dev/hda
any drive:
time dd if=/dev/sda of=/dev/null bs=1024 count=102400
(returns minutes and seconds)
bc
100/(minutes*60+seconds)
<snip>
Cory
