Jane, Scott,
do you already have applied IY50663 ?
I would be very interested in ovwdb cpu usage after having this test fix
installed.
Kind regards
Oliver Bruchhaeuser
Tivoli NetView EMEA L2 Support
|---------+----------------------------->
| | Jane Curry |
| | <jane.curry@skills|
| | -1st.co.uk> |
| | Sent by: |
| | owner-nv-l@lists.u|
| | s.ibm.com |
| | |
| | |
| | 01.12.2003 16:03 |
| | Please respond to |
| | nv-l |
| | |
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| To: nv-l@lists.us.ibm.com
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| cc:
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| Subject: Re: [nv-l] 7.1.4 performance ?
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I've seen similar. I am a little surprised that the default is to have
this turned on. I might suggest the next version of the Release Notes
do at least have a large warning somewhere about performance degradation
with FFDC, if you keep the deafult as having it switched on.
Personally, I've just configured it off.
Cheers,
Jane
Barr, Scott wrote:
>Turning FFDC off dropped OVWDB performance from 50% of a CPU to 15% -
results aren't "conclusive" but sure seems dramatic to me.
>
>-----Original Message-----
>From: owner-nv-l@lists.us.ibm.com [mailto:owner-nv-l@lists.us.ibm.com]On
>Behalf Of Oliver Bruchhaeuser
>Sent: Thursday, November 27, 2003 5:54 AM
>To: nv-l@lists.us.ibm.com
>Subject: Re: [nv-l] 7.1.4 performance ?
>
>
>
>Jane,
>
>this are two complete different things.
>
>The Autotrace is more like a (source) code trace.
>You (no, not you ;-) see what code has been executed during the snapshoot
>... with FDDC before the core happens.
>Similar to the dbxprof tool you might got from support in the past to look
>whats going on if you have performance problems or have found a possible
>loop.
>
>The nettl subsystem only trace things what the developer though what is
>worth to (in different classes, subsystems).
>
>But I might be wrong and some other guys know it better.....
>
>Kind regards
>
>Oliver Bruchhaeuser
>Tivoli NetView EMEA L2 Support
>
>
>
>|---------+----------------------------->
>| | Jane Curry |
>| | <jane.curry@skills|
>| | -1st.co.uk> |
>| | Sent by: |
>| | owner-nv-l@lists.u|
>| | s.ibm.com |
>| | |
>| | |
>| | 27.11.2003 10:44 |
>| | Please respond to |
>| | nv-l |
>| | |
>|---------+----------------------------->
> >
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> |
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> | To: nv-l@lists.us.ibm.com
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> | cc:
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> | Subject: Re: [nv-l] 7.1.4 performance ?
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> |
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> |
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> >
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>
>
>
>Many thanks, Oliver,
>Does this mean that the nettl subsystem is now redundant? It still
>seems to run as ever, although I almost never had cause to use it.
>
>Cheers,
>Jane
>
>Oliver Bruchhaeuser wrote:
>
>
>
>>Jane,
>>
>>I fear this isn't really interesting for the "normal" NetView user.
>>The created Autotrace packages are in binary format and you need a
special
>>viewer
>>and a code database for the traced product to view them.
>>It is only there for support. Preverably L3 support.
>>
>>Nervertheless the atctl command reference for your curiousity ;-):
>>--------------------------
>>
>>
>>
>>
>
>--
>Tivoli Certified Consultant & Instructor
>Skills 1st Limited, 2 Cedar Chase, Taplow, Bucks, SL6 0EU, UK
>Tel: +44 (0)1628 782565
>Copyright (c) 2003 Jane Curry <jane.curry@skills-1st.co.uk>. All rights
>reserved.
>
>
>
>
>
>
>
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>
>
--
Tivoli Certified Consultant & Instructor
Skills 1st Limited, 2 Cedar Chase, Taplow, Bucks, SL6 0EU, UK
Tel: +44 (0)1628 782565
Copyright (c) 2003 Jane Curry <jane.curry@skills-1st.co.uk>. All rights
reserved.
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