IDS Forum

RE: Releasing memory

Posted By: Sebastian, Norma J.
Date: Thursday, 17 January 2008, at 11:52 a.m.

In Response To: Re: Releasing memory (Chris Salch)

Yes, if those are all informix segments, you have a lot of fragmented
memory.
You may need to bounce your informix engine (stop/start) to clean it up.
the pros out here will likely post excellent advise on resizing your
SHMVIRTSIZE and SHMADD in onconfig to be more efficient.
When you do "onstat -g seg" and you see a a lot of class "V" segments,
your engine has requested a lot of additional memory over time.
If onmode -F does not free you, you would need to bounce engine to fix,
after you resize SHMVIRTSIZE and SHMADD in your onconfig.

-----Original Message-----
From: ids-bounces@iiug.org [mailto:ids-bounces@iiug.org] On Behalf Of
Chris Salch
Sent: Thursday, January 17, 2008 10:04 AM
To: ids@iiug.org
Subject: Re: Releasing memory [10969]

Unfortunately, that seems to have had no effect. Would this represent
fragemented memory?

Segment Summary:
id key addr size ovhd class blkused blkfree
1207 1381386242 80000000 201334784 6800 V 40200 8954
15815 1381386245 8c002000 33554432 1680 V 1171 7021
5608 1381386246 8e002000 33554432 1680 V 190 8002
8209 1381386247 90002000 33554432 1680 V 181 8011
6016 1381386248 92002000 33554432 1680 V 179 8013
12017 1381386249 94002000 33554432 1680 V 141 8051
26619 1381386251 96002000 33554432 1680 V 215 7977
20 1381386252 98002000 33554432 1680 V 204 7988
21 1381386253 9a002000 33554432 1680 V 176 8016
22 1381386254 9c002000 33554432 1680 V 186 8006
223 1381386255 9e002000 33554432 1680 V 171 8021
24 1381386256 a0002000 33554432 1680 V 120 8072
25 1381386257 a2002000 33554432 1680 V 160 8032
26 1381386258 a4002000 33554432 1680 V 122 8070
27 1381386259 a6002000 33554432 1680 V 195 7997
28 1381386260 a8002000 33554432 1680 V 158 8034
29 1381386261 aa002000 33554432 1680 V 133 8059
30 1381386262 ac002000 33554432 1680 V 248 7944
31 1381386263 ae002000 33554432 1680 V 123 8069
1006 1381386241 c508f000 587632640 239464 R* 143438 27
342218 1381386250 e9400000 33554432 1680 V 170 8022
2613 1381386243 ed629000 5406720 824 M 1291 29
14 1381386244 edb51000 5406720 824 M 1289 31
Total: - - 1437315072 - - 190461 160446

On Thu, 2008-01-17 at 10:55 -0500, Art S. Kagel (Oninit LLC) wrote:
> Chris Salch wrote:
> > HP-UX 11i IDS 9.40.hc5
> >
> > We had an issue here a week or so ago where our logical logs were
filled
> > up. Unfortunately, it happened on a weekend and no one caught the
issue
> > until the next Monday. That's straightened out. One of our apps
> > decided that it wanted to open an enormous number of connections,
seeing
> > that certain things were failing, and caused the server to allocate
an
> > inordinate amount of memory.
> >
> > My question is this, short of bouncing the instance, is there a way
to
> > get Informix to release that memory?
> >
> If it hasn't been fragmented too badly onmode -F will free unused
> virtual segments back to the OS.
>
> Art S. Kagel
> Oninit
>
>
>
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--
--------------------------------------------
Chris Salch
Programmer/Analyst
LeTourneau University
903-233-3537

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See you at the IIUG Informix 2008 Conference
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April 27 - 30, 2008 Marriott Overland Park (Kansas City), Kansas
http://www.iiug.org/conf
Registration Now Open!!
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Messages In This Thread

• Releasing memory
  Chris Salch -- Thursday, 17 January 2008, at 10:46 a.m.
  • RE: Releasing memory
    Scott Mackenzie -- Thursday, 17 January 2008, at 10:51 a.m.
    • RE: Releasing memory
      John_Caron@mab.uscourts.gov -- Thursday, 17 January 2008, at 11:49 a.m.
  • Re: Releasing memory
    Art S. Kagel (Oninit LLC) -- Thursday, 17 January 2008, at 10:55 a.m.
    • Re: Releasing memory
      Chris Salch -- Thursday, 17 January 2008, at 11:03 a.m.
      • RE: Releasing memory
        Sebastian, Norma J. -- Thursday, 17 January 2008, at 11:52 a.m.
      • Re: Releasing memory
        Art S. Kagel (Oninit LLC) -- Thursday, 17 January 2008, at 12:01 p.m.
        • Re: Releasing memory
          Chris Salch -- Thursday, 17 January 2008, at 12:41 p.m.

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