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Work process memory usage

Guys, anyone knows how much memory an workprocess needs?

Actualy i need to increase 10 Wps in the instance. Any SAPNOTE discribes this?

I need present to costumer a SAPNOTE to prove the memory upgrade.

System 4.6c AIX 5.2 64bit.

Edited by: Marcos Dulgher on Dec 21, 2010 2:48 PM

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3 Answers

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    Former Member
    Dec 21, 2010 at 02:50 PM

    It is basically 20MB as far as I am aware that a work process occupies when the system is started.

    Just to understand this more, go to ST02->Detailed analysis menu and click on storage. check under user storage for all work prcoesses.

    Edited by: venkatesh koukuntla on Dec 21, 2010 4:17 PM

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    Former Member
    Dec 21, 2010 at 02:01 PM

    You should be able to check the memory requirement using following OS command

    sappfpar check pf=<instnace_profile>

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    • == Checking profile:

      ================================================================================

      ***ERROR: Size of shared memory pool 10 too small

      ================================================================

      SOLUTIONS: (1) Locate shared memory segments outside of pool 10

      with parameters like: ipc/shm_psize_<key> =0

      SOLUTION: Increase size of shared memory pool 10

      with parameter: ipc/shm_psize_10 =260000000

      ***ERROR: Size of shared memory pool 40 too small

      ================================================================

      SOLUTIONS: (1) Locate shared memory segments outside of pool 40

      with parameters like: ipc/shm_psize_<key> =0

      SOLUTION: Increase size of shared memory pool 40

      with parameter: ipc/shm_psize_40 =68000000

      Shared memory disposition overview

      ================================================================

      Shared memory pools

      Key: 10 Pool

      Size configured.....: 16880000 ( 16.1 MB)

      Size min. estimated.: 255888946 ( 244.0 MB)

      Advised Size........: 260000000 ( 248.0 MB)

      Key: 40 Pool for database buffers

      Size configured.....: 14250000 ( 13.6 MB)

      Size min. estimated.: 64178816 ( 61.2 MB)

      Advised Size........: 68000000 ( 64.8 MB)

      Shared memories inside of pool 10

      Key: 1 Size: 2000 ( 0.0 MB) System administration

      Key: 2 Size: 1114932 ( 1.1 MB) Disp. administration tables

      Key: 3 Size: 13714400 ( 13.1 MB) Disp. communication areas

      Key: 4 Size: 503248 ( 0.5 MB) statistic area

      Key: 7 Size: 14838 ( 0.0 MB) Update task administration

      Key: 8 Size: 67108964 ( 64.0 MB) Paging buffer

      Key: 9 Size: 134217828 ( 128.0 MB) Roll buffer

      Key: 11 Size: 500000 ( 0.5 MB) Factory calender buffer

      Key: 12 Size: 3000000 ( 2.9 MB) TemSe Char-Code convert Buf.

      Key: 13 Size: 10500000 ( 10.0 MB) Alert Area

      Key: 14 Size: 4400000 ( 4.2 MB) Presentation buffer

      Key: 16 Size: 22400 ( 0.0 MB) Semaphore activity monitoring

      Key: 17 Size: 1507428 ( 1.4 MB) Roll administration

      Key: 18 Size: 917604 ( 0.9 MB) Paging adminitration

      Key: 19 Size: 6000000 ( 5.7 MB) Table-buffer

      Key: 31 Size: 1806000 ( 1.7 MB) Dispatcher request queue

      Key: 33 Size: 2048000 ( 2.0 MB) Table buffer, part.buffering

      Key: 51 Size: 3200000 ( 3.1 MB) Extended memory admin.

      Key: 52 Size: 40000 ( 0.0 MB) Message Server buffer

      Key: 54 Size: 4202496 ( 4.0 MB) Export/Import buffer

      Key: 55 Size: 8192 ( 0.0 MB) Spool local printer+joblist

      Key: 57 Size: 1048576 ( 1.0 MB) Profil in shared Memory

      Key: 58 Size: 4096 ( 0.0 MB) EnqId

      Shared memories inside of pool 40

      Key: 41 Size: 9010000 ( 8.6 MB) DB statistics buffer

      Key: 42 Size: 3620592 ( 3.5 MB) DB TTAB buffer

      Key: 43 Size: 32534392 ( 31.0 MB) DB FTAB buffer

      Key: 44 Size: 7958392 ( 7.6 MB) DB IREC buffer

      Key: 45 Size: 4886392 ( 4.7 MB) DB short nametab buffer

      Key: 46 Size: 20480 ( 0.0 MB) DB sync table

      Key: 47 Size: 3073024 ( 2.9 MB) DB CUA buffer

      Key: 48 Size: 300000 ( 0.3 MB) Number range buffer

      Key: 49 Size: 2769392 ( 2.6 MB) Spool admin (SpoolWP+DiaWP)

      Shared memories outside of pools

      Key: 6 Size: 159744000 ( 152.3 MB) ABAP program buffer

      Key: 30 Size: 22200 ( 0.0 MB) Taskhandler Runtime Admin

      Key: 1002 Size: 400000 ( 0.4 MB) Performance monitoring V01.0

      Key: 58900100 Size: 4096 ( 0.0 MB) SCSA area

      Nr of operating system shared memory segments: 6

      Shared memory resource requirements estimated

      ================================================================

      Nr of shared memory descriptors required for

      Extended Memory Management (unnamed mapped file).: 16

      Total Nr of shared segments required.....: 22

      System-imposed number of shared memories.: 1000

      Shared memory segment size required min..: 260000000 ( 248.0 MB)

      System-imposed maximum segment size......: 35184372088832 (33554432.0 MB)

      Swap space requirements estimated

      ================================================

      Shared memory....................: 467.5 MB

      ..in pool 10 16.1 MB, 1515% used !!

      ..in pool 40 13.6 MB, 450% used !!

      ..not in pool 152.7 MB

      Processes........................: 25.6 MB

      Extended Memory .................: 4092.0 MB

      -


      Total, minimum requirement.......: 4585.0 MB

      Process local heaps, worst case..: 1907.3 MB

      Total, worst case requirement....: 6492.4 MB

      Errors detected..................: 2

      Warnings detected................: 0

      ____________________________________________________________________________________________________

      Hum.... and how i can conclude the minimum usage memory?

  • Dec 21, 2010 at 02:49 PM

    > Guys, anyone knows how much memory an workprocess needs?

    No - nobody can tell you that.

    If a user creates e. g. a big list, more memory will be used than if he just uses dialog transactions.

    > Actualy i need to increase 10 Wps in the instance. Any SAPNOTE discribes this?>

    > I need present to costumer a SAPNOTE to prove the memory upgrade.

    > System 4.6c AIX 5.2 64bit.

    You specify limits in the instance profile.

    Markus

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