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SAP memory parameter tuning process
2022-07-07 23:35:00 【gavingxh】
ST02
Click to see the red
Look at the parameters
Modify the parameter principle On an existing basis Every time 0.1* base float
After modifying parameters, the sap<sid> Test parameters under
sappfpar check pf=/usr/sap/PRD/SYS/profile/PRD_DVEBMGS00_sapprd
================================================================================
== Checking profile: <no_profile>
================================================================================
Maximum shared memory size > 20G
***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 =486000000
Shared memory disposition overview
================================================================
Shared memory pools
Key: 10 Pool
Size configured.....: 200000000 ( 190.7 MB)
Size min. estimated.: 132565864 ( 126.4 MB)
Advised Size........: 136000000 ( 129.7 MB)
Key: 40 Pool for database buffers
Size configured.....: 110000000 ( 104.9 MB)
Size min. estimated.: 482199040 ( 459.9 MB)
Advised Size........: 486000000 ( 463.5 MB)
Shared memories inside of pool 10
Key: 11 Size: 500000 ( 0.5 MB) Factory calender buffer
Key: 12 Size: 6000000 ( 5.7 MB) TemSe Char-Code convert Buf.
Key: 13 Size: 60500000 ( 57.7 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: 11142696 ( 10.6 MB) Roll administration
Shared memories inside of pool 40
Key: 42 Size: 70592992 ( 67.3 MB) DB TTAB buffer
Key: 43 Size: 273654392 ( 261.0 MB) DB FTAB buffer
Key: 44 Size: 48374392 ( 46.1 MB) DB IREC buffer
Key: 45 Size: 33014392 ( 31.5 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: 500000 ( 0.5 MB) Number range buffer
Key: 49 Size: 2968344 ( 2.8 MB) Spool admin (SpoolWP+DiaWP)
Shared memories outside of pools
Key: 1 Size: 2500 ( 0.0 MB) System administration
Key: 2 Size: 6220772 ( 5.9 MB) Disp. administration tables
Key: 3 Size: 66864000 ( 63.8 MB) Disp. communication areas
Key: 4 Size: 504448 ( 0.5 MB) statistic area
Key: 6 Size: 319488000 ( 304.7 MB) ABAP program buffer
Key: 7 Size: 14838 ( 0.0 MB) Update task administration
Key: 8 Size: 268435556 ( 256.0 MB) Paging buffer
Key: 9 Size: 268435556 ( 256.0 MB) Roll buffer
Key: 18 Size: 3670116 ( 3.5 MB) Paging adminitration
Key: 19 Size: 30000000 ( 28.6 MB) Table-buffer
Key: 30 Size: 5120 ( 0.0 MB) Taskhandler runtime admin.
Key: 31 Size: 3612000 ( 3.4 MB) Dispatcher request queue
Key: 33 Size: 10240000 ( 9.8 MB) Table buffer, part.buffering
Key: 41 Size: 25010000 ( 23.9 MB) DB statistics buffer
Key: 51 Size: 18000000 ( 17.2 MB) Extended memory admin.
Key: 52 Size: 180000 ( 0.2 MB) Message Server buffer
Key: 54 Size: 8396800 ( 8.0 MB) Export/Import buffer
Key: 55 Size: 8192 ( 0.0 MB) Spool local printer+joblist
Key: 57 Size: 1572864 ( 1.5 MB) Profilparameter in shared mem
Key: 58 Size: 4096 ( 0.0 MB) Enqueue ID for reset
Key: 62 Size: 85983232 ( 82.0 MB) Memory pipes
Key: 63 Size: 409600 ( 0.4 MB) ICMAN shared memory
Key: 64 Size: 4202496 ( 4.0 MB) Online Text Repository Buf.
Key: 65 Size: 4202496 ( 4.0 MB) Export/Import Shared Memory
Key: 81 Size: 21760 ( 0.0 MB) Security Audit Log
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: 29
Shared memory resource requirements estimated
================================================================
Total Nr of shared segments required.....: 29
System-imposed number of shared memories.: 1000
Shared memory segment size required min..: 486000000 ( 463.5 MB)
Currently available maximum segment size.: 34359738368 (32768.0 MB)
Swap space requirements estimated
================================================
Shared memory....................: 1666.9 MB
..in pool 10 126.4 MB, 66% used
..in pool 40 104.9 MB, 438% used !!
..not in pool: 1073.7 MB
Processes........................: 61.8 MB
Extended Memory .................: 4096.0 MB
------------------------------------------------
Total, minimum requirement.......: 5824.7 MB
Process local heaps, worst case..: 1907.3 MB
Total, worst case requirement....: 7732.1 MB
Errors detected..................: 1
Warnings detected................: 0
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