Re: Is 85M an hour good?

Steve,
        80 MB/hour is not real good.... lots of stuff you can look at...

*        Do you have compression enabled - if it's an older client
(386/486/low end Pentium), turn compression off.
*        What kind of network are you on - are the client and 3172 on the same
subnet ??
*       If you're using Token Ring, you can increased the Adapter Shared RAM
on some cards - default is 16KB, increase it to 64 KB.
*       Check the MTU size.. and change it to the 'highest common
denominator'.  For instance, if you're going thru a router that can
handle an MTU of 4096 and the 3172 can handle an MTU of 4400, change the
MTU on the client to 4096.  If you're using Ethernet, the MTU should be
set to 1500.
*       What kind of network card are you using in the client ??  This can
make a BIG difference.
*       Does the client have enough memory or is OS/2 spending a lot of time
paging/swapping ???
*       On the ADSM server, increase the TXNGROUPMAX parameter and, on the
client, the TXNBYTELIMIT.
*       There are also a lot of parameters in the PROTOCOL.INI file (xmitbufs,
xmitbufsize, receivebufs, receivebufsize) that can be tweaked... I
recommend you get the latest ADSM Performance Tuning Guide... lots of
useful stuff in this manual.

Good luck !!!
Tim Pittson
tpittson AT himail.hcc DOT com

>----------
>From:  Steve White[SMTP:swhite AT OCSLINK DOT COM]
>Sent:  Thursday, June 19, 1997 9:00 AM
>To:    ADSM-L AT VM.MARIST DOT EDU
>Subject:       Is 85M an hour good?
>
>Hi,
>
>MVS server w/OS/2 clients. TCP/IP transfer rate is about 80M per hr.  Is
>this too slow? How can I increase throughput?  tcpwindowsize and
>tcpbuffsize are at 32 (the max).
>
>thanks,
>
>steve white
>