Performance Tuning

[anvardheen_jabarullah]

Hi All,

We are having ECC Prod system in the Windows-oracle Environment. We often face performance issue also many time it is gone to hang state at that time couldn't able to connect.Actually This is new SAP System which gone for live recently.I would like to check whether its tuned fine or not? Let me know what are the parameters need to be tune normally after system is built?

[bxiv]

What does the EWA report show with the system you are having issues with?

[Former Member]

hello,

Controlling Memory Management

abap/heaplimit: Work Process Restart

Memory Management Resources for One Work Process

ztta/roll_extension: Limit for Extended Memory

ztta/roll_extension_dia: EM Quota for Dialog Work Processes

ztta/roll_extension_nondia: EM Quota for Non-Dialog Work Processes

abap/heap_area_dia: Heap Memory Limit for Dialog Work Processes

abap/heap_area_nondia: Heap Memory Limit for Non-Dialog Work Processes

abap/heap_area_total: Total Quota for Heap Memory

ztta/roll_area: Roll Area

ztta/roll_first: Size of the Initial Allocation from the Roll Area

Memory Management Limitations

abap/heap_area_total: Heap Memory Limit

em/initial_size_MB: Extended Memory Pool Size

rdisp/ROLL_SHM: Roll Buffer Size

rdisp/ROLL_MAXFS: Maximum Roll File Size

rdisp/PG_SHM: Size of the Paging Buffer

rdisp/PG_MAXFS: Maximum Size of SAP Paging File

em/blocksize_KB: Segment Size for the Extended Memory

Memory Management Statistics

em/stat_log_size_MB: Statistics - User Context Size

em/stat_log_timeout: Statistics - User Context Size

Parameters for controlling the Release of SAP Memory for the Operating System

es/disclaim_threshold_MB

es/disclaim_coasting_time_alloc

es/disclaim_coasting_time_free

es/blockdisclaimsize_KB

es/freelist_compactor

WR,

PHB

[Former Member]

Hello,

you need to check this parameter value,

• #———-Parameters Changed ———–
• rdisp/wp_no_dia = 10
• rdisp/wp_no_btc = 3
• rdisp/wp_no_enq = 1
• rdisp/wp_no_vb = 3
• rdisp/wp_no_vb2 = 3
• rdisp/wp_no_spo = 1
• login/system_client = 200 ***200 for standard system, 800 for IDES system
• #———-Parameters Created———–
• rdisp/keepalive_timeout = 600
• rdisp/keepalive = 6H
• ms/keepalive = 9999999
• ms/conn_timeout = 100000
• ms/http_timeout = 600
• em/initial_size_MB = 1024
• DIR_EPS_ROOT = \\<hos>\sapmnt\trans\EPS
• DIR_TRANS = \\<host>1955\sapmnt\trans
• login/create_sso2_ticket = 2
• login/accept_sso2_ticket = 1
• icm/host_name_full = <host>.acmeinc.net
• login/no_automatic_user_sapstar = 0
• sapgui/user_scripting_set_readonly = FALSE
• sapgui/user_scripting_disable_recording = FALSE
• sapgui/user_scripting = TRUE
• zcsa/system_language = E
• icm/keep_alive_timeout = 6000
• icm/conn_timeout = 9999999
• rdisp/max_wprun_time = 14400
• rdisp/gui_auto_logout = 0
• em/blocksize_KB = 4096
• em/max_size_MB = 20000
• em/address_space_MB = 512
• rdisp/ROLL_MAXFS = 10000
• rdisp/ROLL_SHM = 10000
• rdisp/PG_MAXFS = 32768
• rdisp/PG_SHM = 5000
• rsdb/ntab/entrycount = 80000
• rsdb/esm/max_objects = 10000
• dbs/ora/array_buf_size = 1000000
• rsdb/ntab/size = 60000
• rsdb/ntab/irbdsize = 8000
• sap/bufdir_entries = 10000
• rsdb/obj/buffersize = 40000
• rsdb/obj/max_objects = 20000
• rdisp/max_arq = 2000
• gw/max_conn = 2000
• rdisp/tm_max_no = 2000
• rdisp/max_comm_entries = 2000
• gw/max_overflow_size = 25000000
• enque/table_size = 10000
• rsdb/ntab/ftabsize = 60000
• abap/buffersize = 300000
• abap/heap_area_dia = 2000000000
• abap/heap_area_nondia = 2000000000
• abap/heap_area_total = 2000000000
• abap/heaplimit = 40894464
• abap/swap_reserve = 20971520
• vmcj/property/vmc.cachesiz = 50
• vmcj/option/percentageCopyOnlySC = 20
• vmcj/option/percentageSharedClasses = 10
• zcsa/presentation_buffer_area = 4400128
• zcsa/table_buffer_area = 30000128
• ztta/roll_area = 2000000
• ztta/roll_extension = 2000000000
• ztta/roll_first = 1
• vmcj/enable = on
• vmcj/max_vm_heap_MB = 128
• vmcj/option/gc/sharedWaterMark = 70
• vmcj/option/ps = 1024M
• vmcj/option/maxJavaHeap = 128M