AW: Performance problems with AIX PTFs
2002-02-25 11:08:48
Thanks for your reply!
We installed bos.rte.libc.4.3.3.80, rebooted the server - but nothing
changed.
I noticed that the backup sessions are always in session state "RecvW" and
CPU utilization of the SAP server for backint.exe ist about 7%.
Has anyone else seen this problem before?
Kind regards
Thomas Rupp
Vorarlberger Illwerke AG
MAIL: thomas.rupp AT illwerke DOT at
TEL: ++43/5574/4991-251
FAX: ++43/5574/4991-820-8251
> -----Ursprüngliche Nachricht-----
> Von: Flemming Larsen [SMTP:Flemse AT IT-WIT DOT DK]
> Gesendet am: Sonntag, 24. Februar 2002 18:13
> An: ADSM-L AT VM.MARIST DOT EDU
> Betreff: Re: Performance problems with AIX PTFs
>
> After applying maintenance level 9 you need at least to update libc.
>
> See this APAR :
>
> Customers are encouraged to move to AIX 4.3.3 Maintenance level 09 but
> there is a LARGE performance bug due to a memory leak in libc = just about
> every process in AIX. Make sure the bos.rte.libc.4.3.3.77 software is
> installed for ML09
>
>
> after AIX 433_09 aix_ml then this apar for memory leak issue.
> 15
> .
> OF
> The apar iy22308 MEMORY LEAK IN FCLOSE() SUBROUTINE
> 19
> ERROR DESCRIPTION:
> applications doing many file opens and closes will see an
> increase in memory use and a decrease in performance
> LOCAL FIX:
> PROBLEM SUMMARY:
> Memory leak in fclose()
> PROBLEM CONCLUSION:
> Fixed file threadsafe macros
> .
> OID
> now is included in this filesets.
> BDC
> .
> bos.adt.prof.4.3.3.77
> .
> PAGE
> bos.rte.libc.4.3.3.77
>
>
> ----- Original Message -----
> From: "Rupp Thomas (Illwerke)" <thomas.rupp AT ILLWERKE DOT AT>
> To: <ADSM-L AT VM.MARIST DOT EDU>
> Sent: Saturday, February 23, 2002 2:59 PM
> Subject: Performance problems with AIX PTFs
>
>
> > Hi TSM gurus,
> >
> > Our IBM SE moved our AIX TSM Server from 4.3.3.0 to PTF level 9.
> > The result was that our TDP for SAP backups now take 6 hours - before
> > they finished after 1 hour.
> > I'm running a H50 and a 3494 with two 3590E11 drives.
> >
> > Has anyone else seen such dramatic performance problems after applying
> > AIX PTF's?
> >
> > Kind regards
> > Thomas Rupp
> > Vorarlberger Illwerke AG
> > MAIL: thomas.rupp AT illwerke DOT at
> > TEL: ++43/5574/4991-251
> > FAX: ++43/5574/4991-820-8251
> >
> >
> >
> >
> >
> --------------------------------------------------------------------------
> ----------------
> > Dieses eMail wurde auf Viren geprueft.
> >
> > Vorarlberger Illwerke AG
> >
> --------------------------------------------------------------------------
> ----------------
> >
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Dieses eMail wurde auf Viren geprueft.
Dieses eMail wurde auf Viren geprueft.
Vorarlberger Illwerke AG
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