Re: [netatalk-admins] Very slow Save and Copying!

Subject: Re: [netatalk-admins] Very slow Save and Copying!
From: Mitch McNeel (mitchm@mwh.com)
Date: Fri Sep 04 1998 - 11:44:09 EDT

Sorry for the Delay and thanks for the replies.

Well to start with:

        We have a department (Catalog design) that is on their own internal
shared 100base-t net (talking ASIP and TCP/IP also talking Appletalk peer to
peer). Their MAC's have 10 Mb ether cards installed. On the other side of
their router, we have a shared 100base-t net. with all Sun Machines (i.e..
20 UE-450's, E-5500, E-3500, Sparc's etc...). The only load on the netatalk
server is 16 MAC's and other net. traffic (PC's/Terminal's) are routed to
other servers.

    Test results of saving to another Mac (both G3's) on the same net was 11
seconds and from the same Mac's saving to the netatalk server was 3 minutes
and 15 seconds for a 6.7MB file. Formally these MAC were on a PowerPc /
Workgroup Server 8550/132 which was on the same 100base-t net. The results
of saving to that server was 12 seconds.

Following is a netstat from the SS20:
TCP
   Local Address Remote Address Swind Send-Q Rwind Recv-Q State
-------------------- -------------------- ----- ------ ----- ------ -------
neptune.afpovert mitchmac.nfsd 64240 0 8760 0
ESTABLISHED
neptune.afpovert scottn.nfsd 64240 0 8760 0
ESTABLISHED
neptune.login venus.1017 8760 0 8760 0
ESTABLISHED
neptune.shell venus.978 8760 0 8760 0
CLOSE_WAIT
neptune.1022 venus.976 8760 0 8760 0
ESTABLISHED
neptune.35521 venus.6000 8760 0 8760 0
ESTABLISHED
neptune.login aquarius.1016 8760 0 8760 0
ESTABLISHED
neptune.afpovert 172.10.20.30.2051 64240 0 8760 0
ESTABLISHED
neptune.afpovert sharrone.2051 64240 0 8760 0
ESTABLISHED
neptune.afpovert 172.10.20.26.2051 64240 0 8760 0
ESTABLISHED
neptune.afpovert 172.10.20.115.nfsd 64240 0 8760 0
ESTABLISHED
neptune.afpovert jeffn.2051 64240 0 8760 0
ESTABLISHED
neptune.afpovert pilarw.2051 64240 0 8760 0
ESTABLISHED
neptune.afpovert brianb.nfsd 64240 0 8760 0
ESTABLISHED
neptune.623 prometheus.nfsd 8760 0 8760 0
ESTABLISHED
neptune.619 prometheus.sunrpc 8760 0 8760 0
ESTABLISHED
neptune.618 prometheus.lockd 8760 0 8760 0
ESTABLISHED
neptune.36027 atlas.32772 8760 0 8760 0
TIME_WAIT
neptune.36028 atlas.32772 8760 0 8760 0
TIME_WAIT
neptune.617 centaur.nfsd 8760 0 8760 0
ESTABLISHED
Active UNIX domain sockets
Address Type Vnode Conn Addr
f67441f0 stream-ord 7601 0 /var/X/.X11-unix/X0
f6744330 stream-ord 0 0

Mitch

Randall Downer wrote:

I run a very similar configuration without these problems.

It sounds more like a network issue than an appletalk issue. What is
your network topology like? ie is it switched or shared? Is the UE450
on the same segment as the connection from your desktop to the SS20?

What does netstat tell you on the 20?

RD
Neil McAllister wrote:

Comparing the speed of 10 megaBIT-per-second Ethernet (over which the data
travels when your users save to the networked volume) vs. 10 megaBYTE per
second SCSI hard drives... you might expect saving to the network drive to
be 8-10 times slower. I'd say your performance level sounds pretty good. 

--
Neil McAllister, Systems Administrator

Tim Carlson wrote:

> On Thu, 3 Sep 1998, Mitch McNeel wrote:
>
> > drive it only take 20 to 30 Seconds, but if I try and save or copy this
> > file to the netatalk shared volume it takes anywhere from 3 to 5
> > minutes??  Is there something wrong with my configuration or is anyone
> > have an idea of what to do??
>
> have you tried testing this with saving to another Mac on the net?  You
> didn't tell us how fast your network is. Is it all one shared 10Mb net?
> How heavily loaded is the server?
>
> Tim
>

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