Subject: Re: [netatalk-admins] netatalk+asun benchmark (afp/tcp)
From: Dave Zarzycki (zarzycki@ricochet.net)
Date: Wed Dec 31 1997 - 10:45:58 EST
On 12/31/97 5:12 AM, Nicolas MONNET (nico@idnet.fr) wrote:
>On Tue, 30 Dec 1997, Dave Zarzycki wrote:
>
>> server config:
>>
>> 200MHz PP200/512k L2
>> Intel Providence MB
>> 64MB EDO ECC memory
>> Seagate ST34371W (4GB UltraWide)
>> 3Com 3c509
>> (RNS?) 4 port 10/100 DEC tulip 21140
>
> What OS???
Linux 2.0.32
RedHat Linux 5.0
The kernel is the available in their Hurricane updates directory.
>[snipped]
>> test software: ThruPut 1.2
>
> What is it?
A very simple program that reads and write to files on a mounted volume
to measure performance. When I did the test, I picked 4MB files and only
to use one of them. That way the file would stay in the cache on the
server, and we would spend more of our time transferring bits than
negotiating which bits to transfer.
>> results: 134Mb/s
>
> Do you have any other thing to compare to?
AppleShareIP 5.0.2 under the same circumstances (with less network cards
of course) can/will saturate Fast Ethernet (100Mb/s) come January with
new Apple servers. I wish I could say more, but I can't. (
>> questions unanswered:
>> how would a Pentium II do?
>> how would a Alpha do?
>> how would a Sparc do?
>> how would a PowerPC do?
>> would other drivers perform better?
>> How would a SMP system do?
>
> As for any such benchmarks, the result depend of (in approximate
>decreasing order of importance):
>
> + Ram amount (for caching)
> + Disk
> + Scsi card
> + Network card
> + Processor/cache
Ah, I would argue differently, unless you are speaking generally for any
workstation and not a server.
+ Server OS (drivers, drivers, and optimization or lack there of.
As far as I could tell, the tulip driver needs better optimization.)
+ Processor/cache (When I was doing the test, most of the time was spent
in the system and not user space. I was processor bound when I got
the numbers I did.)
+ RAM (the more of it, the faster the server can do more at once)
+ Network card (servers spend most of their time pushing bits)
Fast Ethernet == 100Mb/s or about 12MB/s
Nearly all Ultra Wide SCSI drives today are 10-13MB/s
If the data is in the cache/RAM, hard drive speed is irrelevant
+ Disk (but when the data is not in the cache, it must be fetched from
the disk ;-)
+ SCSI card
davez
----------------------------------------------------------------------
Dave Zarzycki Student
Intern San Jose State University
Apple Computer, Inc. dzarzyck@email.sjsu.edu
zarzycki@apple.com zarzycki@ricochet.net
----------------------------------------------------------------------
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