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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Vorarlberger Illwerke AG
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