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desmond



Reged: 10/01/06
Posts: 7894
Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed?
      16/01/10 10:28 AM
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It is actually a bit tricky to do these tests, as if you are using a HD, usually the HD read/write speeds dominate the tests, making the evaluation of the bus speeds tricky.

I had rather flaky performance in Photoshop, especially in the writing, where it would vary quite widely. It would be better to test bus throughput with audio data or some real-time generated data or something.

I haven't done enough tests to say for sure that the speeds are dropping with the FW400 device connected - it looks that way, but I'm not confident enough in the quick results to go that far.

Interesting though...

I wonder if Martin W ever did some firewire speed tests for SOS? He kinda likes these testy things...

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Subject Posted by Posted on
* Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? blastmasterd 16/01/10 08:37 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? emilylaurence   02/02/12 09:39 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? thescientist   18/04/10 01:24 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Tui   02/02/10 07:59 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? thenaturallevel   03/02/10 01:59 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   17/04/10 10:09 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Tui   17/04/10 10:50 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   17/04/10 10:51 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Tui   18/04/10 08:29 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? ConcertinaChap   02/02/10 08:45 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Tui   03/02/10 12:50 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Gorrion   02/02/10 05:10 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   02/02/10 05:36 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? Gorrion   02/02/10 04:09 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   02/02/10 04:16 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? blastmasterd   16/01/10 01:44 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? SparkyG   16/01/10 01:05 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? blastmasterd   16/01/10 01:10 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   16/01/10 01:29 PM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? sonicparticle   16/01/10 11:13 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   16/01/10 11:16 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? blastmasterd   16/01/10 09:17 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   16/01/10 09:59 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? blastmasterd   16/01/10 10:12 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   16/01/10 10:28 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? desmond   16/01/10 10:43 AM
. * Re: Firewire 800 - Does using a FW400 device in the chain slow the bus down to 400 speed? matt keen   16/01/10 09:07 AM

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