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Groups > comp.sys.acorn.misc > #5932
| From | Tony Moore <old_coaster@yahoo.co.uk> |
|---|---|
| Newsgroups | comp.sys.acorn.misc |
| Subject | Re: Unipod query |
| Date | 2012-07-25 16:40 +0000 |
| Organization | Aioe.org NNTP Server |
| Message-ID | <a07fe6b452.old_coaster@old_coaster.yahoo.co.uk> (permalink) |
| References | <52b09af13ccvjazz@waitrose.com> |
On 17 Jul 2012, Chris Newman <cvjazz@waitrose.com> wrote:
[snip]
> Is there any speed (or other) advantage to having the main Hard Disc 4
> connected via my Unipod as opposed to the main mother board? I looked
> in Archive for an article about the Unipod and any comparative data
> but couldn't find one.
I've now been able to test my RiscPC/Unipod. Identical Seagate 40GB
ST340015A drives are installed on the motherboard ADFS, and on the
Unipod IDEFS. The results, below, were produced by HDspeed v1.30.
Byte access test, ADFS IDEFS IDEFS
large file size = 8 MB c-sec c-sec /ADFS
Read 50K sequential bytes 8.9 33.4 3.75
Write 50K sequential bytes 41 61 1.49
Read 500K sequential bytes 297 342 1.15
Write 500K sequential bytes 645 631 0.98
50 KB file read 1,000 random bytes 28 276 9.86
50 KB file write 1,000 random bytes 358 1657 4.63
Large file read 1,000 random bytes 950 907 0.95
Large file write 1,000 random bytes 2711 1650 0.61
Mean 2.93
Block Load/Save, ADFS IDEFS IDEFS
large file size = 8 MB KB/sec KB/sec /ADFS
Save 50Kb file 956 1543 1.61
Load 50Kb file 1515 1612 1.06
Save large block file 1624 2507 1.54
Load large block file 1890 2832 1.50
Save/load 50 KB file 1179 1865 1.58
Save/load 512 KB file 1473 2216 1.50
Save/load large block file 1743 2661 1.53
Mean 1.48
The first group of tests show that, for byte access, IDEFS is, on
average, more than 60% _slower_ than ADFS.
The second group of tests show that, for load/save operations, IDEFS is,
on average, about 50% faster than ADFS.
Tony
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Unipod query Chris Newman <cvjazz@waitrose.com> - 2012-07-17 09:30 +0100
Re: Unipod query "David Holden" <SpamBin@apdl.co.uk> - 2012-07-17 09:06 +0000
Re: Unipod query Chris Newman <cvjazz@waitrose.com> - 2012-07-17 17:34 +0100
Re: Unipod query Brian Carroll <bric-nospam@argonet.co.uk> - 2012-07-17 20:05 +0100
Re: Unipod query Chris Newman <cvjazz@waitrose.com> - 2012-07-18 12:56 +0100
Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-21 00:31 +0100
Re: Resurrected RiscPC "David Holden" <SpamBin@apdl.co.uk> - 2012-07-21 05:39 +0000
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-21 12:29 +0100
Re: Resurrected RiscPC "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-21 14:05 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-21 18:09 +0100
Re: Resurrected RiscPC Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-07-21 18:56 +0100
Re: Resurrected RiscPC "Bruce Goatly" <ss4@goatly.co.uk> - 2012-07-21 19:19 +0100
Re: Resurrected RiscPC "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-21 20:26 +0100
Re: Resurrected RiscPC Stuart <Spambin@argonet.co.uk> - 2012-07-22 14:46 +0100
Re: Resurrected RiscPC Russell Hafter News <see.sig@walkingingermany.invalid> - 2012-07-21 21:39 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-22 13:53 +0100
Re: Resurrected RiscPC "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-22 15:09 +0100
Re: Resurrected RiscPC Fred Bambrough <fred@[127.0.0.1]> - 2012-07-23 16:36 +0100
Re: Resurrected RiscPC "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-21 20:22 +0100
Re: Resurrected RiscPC Brian Howlett <news-spamtrap@brianhowlett.me.uk> - 2012-07-22 10:03 +0100
Re: Resurrected RiscPC "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-22 11:09 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-23 11:29 +0100
Re: Resurrected RiscPC John Sandford <lists@thesandfords.me.uk> - 2012-07-23 16:28 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-23 18:27 +0100
Re: Resurrected RiscPC Steve Fryatt <news@stevefryatt.org.uk> - 2012-07-23 20:38 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-23 22:25 +0100
Re: Resurrected RiscPC "David Holden" <SpamBin@apdl.co.uk> - 2012-07-24 06:03 +0000
Re: Resurrected RiscPC spampling <spam.pling@btinternet.com> - 2012-07-24 07:49 +0100
Re: Resurrected RiscPC Stuart <Spambin@argonet.co.uk> - 2012-07-24 12:23 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-24 21:08 +0100
Re: Resurrected RiscPC Dave Higton <dave@davehigton.me.uk> - 2012-07-24 22:05 +0100
Re: Resurrected RiscPC Chris Newman <cvjazz@waitrose.com> - 2012-07-24 22:36 +0100
Re: Unipod query Tony Moore <old_coaster@yahoo.co.uk> - 2012-07-25 16:40 +0000
Re: Unipod query "David Holden" <SpamBin@apdl.co.uk> - 2012-07-26 08:34 +0000
Re: Unipod query "Dave Plowman (News)" <dave@davenoise.co.uk> - 2012-07-26 10:22 +0100
Re: Unipod query Tony Moore <old_coaster@yahoo.co.uk> - 2012-07-26 10:15 +0000
Re: Unipod query Chris Newman <cvjazz@waitrose.com> - 2012-07-26 10:22 +0100
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