PQ68076 is MVS ONLY related to GETMAIN activity, not AIX and there is no
equivalent issue on AIX.  So, the problem is something else.

Paul D. Seay, Jr.
Technical Specialist
Naptheon Inc.
757-688-8180


-----Original Message-----
From: Dan Foster [mailto:dsf AT GBLX DOT NET]
Sent: Tuesday, December 10, 2002 1:16 PM
To: ADSM-L AT VM.MARIST DOT EDU
Subject: Re: TSM SERVER 5.1.5.2


Hot Diggety! David Longo was rumored to have written:
> 5.1.5.2 has been out about a month or so now.
> Also that something else isn't broke?

There was a major performance bug fixed in 5.1.5.3; we had a really nasty
situation where a west coast client was sending data at only 2 Mbps to the
east coast server; raw network between the two is up to 32 Mbps as evidenced
by ttcp tests between west coast client and other east coast servers on the
same subnet.

Turns out we needed an efix for the pre-release version of fixed netinet
driver in AIX 5.1 (to be bos.net.tcp.client 5.1.0.37 and released next week)
to fix the OS perf bug *AND* to also upgrade to 5.1.5.3 from 5.1.5.2.

Doing so improved the ITSM network perf from 2 Mbps to 8 Mbps, and raw OS
network perf to 32 Mbps. Merely fixing the OS perf bug wasn't sufficient for
us. (We tested and retested between every single step to rule out multiple
variables.)

>From the 5.1.5.3 README:

PQ68076     PERFORMANCE DEGRADATION AFTER UPGRADE TO 5.1.5.0, 5.1.5.1 OR

-Dan