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Groups > comp.sys.acorn.misc > #5938
| From | Chris Newman <cvjazz@waitrose.com> |
|---|---|
| Subject | Re: Unipod query |
| Newsgroups | comp.sys.acorn.misc |
| Date | 2012-07-26 10:22 +0100 |
| Message-ID | <52b542336ccvjazz@waitrose.com> (permalink) |
| References | <52b09af13ccvjazz@waitrose.com> <a07fe6b452.old_coaster@old_coaster.yahoo.co.uk> |
| Organization | None |
In article <a07fe6b452.old_coaster@old_coaster.yahoo.co.uk>, Tony Moore <old_coaster@yahoo.co.uk> wrote: > 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. Oooh! Swings & roundabouts, what? Thanks for doing that. Most interesting. I wonder which would be better for overall use. I suppose it would depend on what you mostly use the machine for. Regards, -- Chris Newman
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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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