Work process memory usage

[marcos_dulgher]

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

[Former Member · Accepted solution]

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

[markus_doehr2]

> 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

[Former Member]

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

sappfpar check pf=<instnace_profile>

[marcos_dulgher]

== 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?