Interesting speed benchmarks
Robert Huff
roberthuff at rcn.com
Wed Jan 31 06:25:17 UTC 2007
Ian FREISLICH writes:
> > > DUMP: finished in 12961 seconds, throughput 2095 KBytes/sec
>
> As a random datapoint that might or might not be related. In the
> last year or so I was pontificating about how much better SCSI
> was that IDE/ATA to my boss. I then did some benchmarks on my
> (CURRENT) system and discovered that an old 10Gig 7.5krpm UDMA33
> disk significantly out perform some Seagate Cheatah LVD 10krpm
> disks.
In supplemental testing (advised by Peter Jeremy) the disk has
been able to transfer(read) 25 mbytes/sec - sufficient to declare it
not the bottleneck.
Additional testing will happen, but dump is by far the prime
suspect.
> Last time I looked, ahc(4) was still under GIANT.
I noticed that. Is there any sentiment for pulling it free?
And how much would that help?
Robert Huff
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