Subject: Re: Speed problems on Linux
From: Thomas Lamy (thomas@v-connect.com)
Date: Wed Jun 18 1997 - 05:13:57 EDT
>Hi,
>
>I am running netatalk on a Linux kernel version 2.0.18. I have tried both
>the 1.3.3 as well as the 1.4 beta version of netatalk but I am having the
>same problems.
>
>Problem: Copying files between the connected Macs and the Linux box is
>extremely slow, about 5-10 k/sec wich I believe is way below expected.
>Excluding the speed problem everything appears to work as it should. Has
>anyone been experiencing similar problems.
>
As far as I can tell, 1.4b2 is way faster than 1.3.3, and has many bugs fixed.
Personally I favor running 1.4b2.
The biggest performance leaks for netatalk are the network adaptor and the
disk.
I tried various cards on my linux box, and found most ne2000 clones to be
extremely slow. 3Com cards and the SMC Ultra worked perfectly for me, as
they achieve good throughput with less cpu load.
Another performance issue is the mac itself. If you have a mac which _must
not_ run Open Transport, don't do so. The Apple Share client on the mac is
not OT native, but uses some compatibility routines which are extremely
slow.
I tried a Quadra 950 with and without OT, with OT, i got 300-400 k/sec, and
wihout OT 700-750 k/sec (raw read throughput).
>Could other machines connected to the net influence the behaviour of
>netatalk. The linux box is attached to a net running both macs as well as
>PC:s. The PC:s are talking APX using a NetWare server. Could this NetWare
>server have any effect on the speed.
This should not affect the netatalk server itself. You should only get a
speed decrease if the network is really busy. Try in non-busy hours, and
test with only the netatalk server and your mac in a 'private' network.
>
>Would appreciate some help on this.
>
What is your exact configuration (Server: Processor/Speed, RAM, network
card, disk controller, disk; Mac: Model, System Software, File Copy
Extensions (such as Speed Copy, Copy Doubler etc), transport software (Open
Transport / Classic network software) ???
>Thanks in advance
>
>Niklas
>
>******************************************
>Niklas Wikström
>Deptartment of Botany
>Stockholm university
>S-106 91 Stockholm
>
>Tel: +46 8 163927
>Fax: +46 8 162577
>e-mail: wikstrom@botan.su.se
>******************************************
Thomas Lamy Vision Connect GmbH Telefon: (089) 356256-35
Database Development Division Taunusstraße 51 Telefax: (089) 356256-56
mailto:thomas@v-connect.com 80807 München http://www.v-connect.com/
This archive was generated by hypermail 2b28 : Sat Dec 18 1999 - 16:25:00 EST