Abap/buffersize Parameter?

Dear Friends,
why we use system profile parameter abap/buffersize ? it will increase ? what about system performance ( Process speed wise)?
Regards
keshav

Check this [SAP.Help |http://help.sap.com/saphelp_nw04/helpdata/en/bc/4a813b680c250fe10000000a114084/frameset.htm]
abap/buffersize - is responsible for Program buffer.
why we use system profile parameter abap/buffersize ?
To adjust program buffer....
it will increase ?
It will increase Program buffer within specified limit... As per document Typical Size/Number of Entries = 240,000u2013400,000 KB
what about system performance ( Process speed wise)?
Check ... Procedure if Buffer Is Full or Swap Rate Is too High on same page, as it says...
Increase the size of the program buffer if the hit rate becomes too low, or the swaps become too frequent. Development systems require a larger program buffer than normal systems. It is, however, almost impossible to avoid swapping in a development system.

Similar Messages

Help needed on memory parameter abap/buffersize

Hello Basis Gurus,
One of the programs in CRM system is failing with dump LOAD_PROGRAM_LOST.
I checked note "1798524 - Runtime error "LOAD_PROGRAM_LOST" when using Segmentation in CRM WEBUI" which seems to be relevant to our situation and found that the parameter 'abap/buffersize' is already on higher side i.e. > 3GB. Please let us know if we need to increase more and if yes then what is the dependency on any other memory parameters?
PS: I always have this question in general on memory parameters due to their sensitive nature (system may not start or adverse impact on other memory parameters). Functional/abap team asks to always increase it but how to check what is the impact and any possible dependency on other memory parameters...!!!
Thanks & Regards,
Kunal.

Hi Kunal,
LOAD_PROGRAM_LOST can have multiple possible causes; a too-small program buffer is just one possibility. At 3 GB, yours does seem like it's probably big enough, but there's no way to tell that from the outside without a lot more information.
Does the same program always fail with this dump, or just sometimes? What else is going on in the system when the dump occurs? Are there transports going into the system around that time? Is it really busy at that time? What happens if you run the program by itself during a quiet time, with nothing else going on? Is this a PRD system? Or perhaps a DEV system?
What sort of statistics do you have on the program buffer when you look at it via ST02? Note that since it's practically impossible to buffer every program, you will inevitably have some swaps in this buffer. That's normal operation. What you might do is look at the history of swaps and get a sense of the average number per day. If you consistently get more than 1000 swaps per day (not 1000 swaps total -- that's not important), as an average, then you might want to consider increasing the size of the buffer. If you only occasionally get spikes higher than this, but typically the number of new swaps each day is less, then you probably don't need to increase the buffer.
The other thing you need to look at is available extended memory. Since the program buffer is quite large, you must make sure there is plenty of available memory for extending it, should you decide to do so. You can get a sense of this from various stats, like the ratio of MaxUse to In Mem for Extended Memory on the same ST02 page, and from OS07N (or ST06). Do you have plenty of free physical memory? Are you getting a lot of paging out? Things like that. If your free physical memory looks good, then you have room to expand.
But again, this may not even be the cause of your dumps.
Bear in mind, if you increase the parameter and have problems restarting the system, you can always fall back by decreasing it again, so other than the planned downtime for the restart you don't lose much by giving it a try. If you increase it and the system starts fine, you will need to keep an eye on those memory use statistics over the following days to ensure all is well, but likely if the system starts ok, then you'll be ok. The days of too-large program buffers causing startup problems were mostly associated with 32-bit systems.
Cheers,
Matt

How to properly configure server in order to increase abap/buffersize to

Hello . I have an Solution manager system running on 32 bit kernel on windows 2003 server (32 bit) with 5GB of ram(Control panel->system...)
I have parameter:
PHYS_MEMSIZE 1024
abap/buffersize 450000
em/initial_size_MB is(default) 1024
in Sql Managment studio I have (minimum and maximum server memory under properties of server) set to 1024
Java has 1024
I would like to increase abap/buffersize (have some swaps there) but the system does not start(in J2EE Process table server0 does not start after startin framework fails
I tried also to decrease PHYS_MEMSIZE ,em/initial_size_MB and Heap memory size(XmX) in configtool but in any case the server does not start.
What do you propose to properly configure server
Thank you in advance

Hello jan Bo,
first of all you should make sure that the /3GB option is set in the boot.ini.
The problem is that you only have a 3GB viruall address room on a Windows 32bit system. So if you want to increase a memory area in this address room you must decrease an other one.
In the most cases the default settings for the roll and page shared memories are set up very generously. Please check the maximum used values in ST02 and decrease the size of the both shared memories. After that you can add the memory you got free here to the programm buffer.
For example if you want to set the roll and page shared memoies to 64M you should set the profile parameters:
rdisp/ROLL_SHM = 8192
rdisp/PG_SHM = 8192
The unit is 8KB (8192 * 8KB = 65536K = 64M).
Regards, Klaus

How to change abap/buffersize

Hallo!
I would like to increase Profile parameter "abap/buffersize".
I tried to do this with TCode RZ11(Maintain Profile Parameter Attributes), where I couldn't change any parameter.
I tried to log on as DDIC and SAP* but no success.
Pleas help me.
Thank you in advance.
Best regards,
Mihail

This is Basis Work. If you are not a basis person, better talk to them before you change anything.
Goto RZ10
Click on the drop down button for Profile.
If you do not have any profile in that. Import the profile.
RZ10 --> Utilities --> Import Profiles --> Of active server
Then do the drop down on Profile again. This time pick the one with <sysid>_DVEBMGS<system number>_<hostname> which is an instance profile.
Choose Change.
In the next screen if you see ur parameter change it, otherwise, you can add one. Do not forget to save the changes.

How to increase abap/buffersize?

Hi Gurus,
I am getting PXA problem in Version 5.0 ECC, System is displaying a message PXA is very small, increase abap/buffersize.
Kindly help me how to increase abap/buffersize?
Thanks
Chandra

raising shared memory buffers.
growing them will automatically shorten the maximum available memory for ABAP user transactions.
if you grow them to high, you might no longer be able to start the ABAP-Server.
(in case of insufficient contigious memory blocks for shared memory)
peter

How to read ABAP return parameter into java code

Hi all,
How JAVA environment can trap an error returned from abap code?
E.g.:
From a BAPI wrapper written like this:
"function zpm_gi_create .
""Interfaccia locale:
*" IMPORTING
*"     VALUE(ZBAPIGOODSMVT) TYPE ZBAPIGOODSMVT
*" EXPORTING
*"     VALUE(RETURN) TYPE BAPIRET2
*"     VALUE(PO_NUMBER_ES) TYPE ZBAPIEKKO-PO_NUMBER
*" TABLES
*"      GOODSMVT_ITEM STRUCTURE ZGOODSMVT_ITEM
data: goodsmvt_header type bapi2017_gm_head_01,
        return2         type bapiret2 occurs 0 with header line,
call function 'BAPI_GOODSMVT_CREATE'
    exporting
      goodsmvt_header             = goodsmvt_header
      goodsmvt_code               = zbapigoodsmvt-gm_code
      testrun                     = 'X'
importing
GOODSMVT_HEADRET   GM         =
    materialdocument              = matdoc
    matdocumentyear               = matyear
tables
    goodsmvt_item                 = gm_item
GOODSMVT_SERIALNUMBER       =
      return                      = return2.
Our return (for istance is):
"EBM                  312The (internal) unit xx has not been maintained in
the unit table"
How JAVA environment can trap this error or interpret the BAPIRET2 structure?
Is there something to do in the corresponding syncBO?
regards,
eliana

Hi elina ,
these topic is already discussed in forum.
Jo has replied to this doubt in these links.
Re: Return messages in SyncBo
Can't see RETURN parameter in SyncBO
Return messages in SyncBo
just note this..
have to change like this , when u follow the help.
if (messageReply.getType() == MessageReplyType.SYNC_BEGIN) {
          if (messageReply.getType() == MessageReplyType.SYNC_END) {
            Regards
              Kishor Gopinathan

Abap macro parameter number limit?

Is there any number of macro parameter restriction?
I am using "set_column" to populate field-category for ALV report. Every is fine until I add ls_fcat-no_out    = &10. I wonder the max parameter no. is 9? Then what can I do for this case?
DEFINE set_column.
    clear ls_fcat.
    ls_fcat-fieldname = &1.
    ls_fcat-scrtext_l = &2.
    ls_fcat-edit      = &3.
    ls_fcat-do_sum    = &4.
    ls_fcat-no_zero   = &5.
    ls_fcat-just      = &6.
    ls_fcat-datatype = &7.
    ls_fcat-outputlen = &8.
    ls_fcat-emphasize = &9.
    ls_fcat-no_out    = &10.
    append ls_fcat to pt_fcat.
END-OF-DEFINITION.

Only up to 9 parameters !!.
Thanks
Venkat.

ABAP - Set Parameter

Hi Guru's,
In My program i need to set parameter for transaction 'FBL3N', fields are Radio button 'OPEN ITEMS ' , Account Group , Posting date ( Range) for these fields i need Parameter Id. I searched in FBL3N F1 help , Tables of SKA1 , Tpara table and screen painter but i did't get parameter Id from those places. Where to search these Parameter ID?
Meenakshi

Dear MeenachiR
Please check these posts:
[ID PARAMETER for a variant of FBL3N;
[Parameter ID for the transaction fb03-document display;
[What is the parameter ID for transaction FB03;
Kind Regards
/Ricardo Quintas

SAP recommanded WebDynpro ABAP Startup parameter

Hello everyone
We have a webdynpro abap application where the display at the browser is very slow.
The problem is not at the application itself. All table read are very quick. But when displaying the record to the browser it is deadly slow.
1000 records:
Read time less than 1 second.
Display time to the browser 28 seconds.
All the code has been optimized to reduce reading time. But the time required to display is killing all users patience.
I would like to know if someone has any kind of documentation indicating SAP recommandation of the startup parameters, at the WAS level or at any levels.
Is there any tools available to trace where is the bottle neck? Why it is so slow to display?
So far, the debugging tool just indicates that all database read section are working with great efficiencies.
we tested the application using windows explorer 7 and firefox 3.5. Same result with both browsers.
any suggestino wil be highly appreciated.
Regards
DSTJ

Hello Thomas
Thank you for your reply.
At the browser level, the display has been set to 10 rows only.
The selected record at the server level is 1000 records. But only 10 rows are displayed at a time.
I am trying to find any documentation related to parameters that have to be setted to have optimal performance using WebDynpro ABAP application.
Related to my comment where the information was refering the webdynpro java was related to the Arun P. link not your post.
The WD_TRACE_TOOL give some information. Unfortunatly I don't know how to use it. I need to play with it.
You refered to CTRLALTSHIFT+P. I don't know where to perform those key stroke. I tried at the browser level, at the SE80 level without success. So, I didn't understand that part.
If you can guide me further, it will be highly appreciatted.
Regards
DSTJ

Deletion of AppSet in SAp BPC 7 NW

Hi all,
I have a problem with deletion an AppSet in SAP BPC 7.0. When I launch
the operation from BPC Client I get this message error during processing:
Failed to connect to ABAP Server
Time limit Exceeded
In NW System I modified the abap/buffersize parameter to 7200 seconds
(2 Hours) but the problem still persist.
Please, Help me!
Regards,
Alessandro

Hi,
reading the logs, I found this error:
Method OSoft.Services.Webservice.FileAccessService.FileAccessService.ReleaseAllLockOfUser not found
Regards,
Alessandro

TSV_TNEW_PAGE_ALLOC_FAILED error while executing FAGLL03

Dear Experts,
We are on AIX, Oracle 10g and ECC 6.0
One of our FI consultant is trying to execute a report using the standard T-Code: FAGLL03 for a range of 1 year, but when she executes this she gets the following dump (runtime error)
TSV_TNEW_PAGE_ALLOC_FAILED
So on working on this error i found that we need to set few abap parameters, for which i have done the following parameter settings..
rsdb/ntab/ftabsize 41000
Previous Value: 30000
rsdb/ntab/entrycount 25000
Previous Value:20000
abap/buffersize 900000
Previous Value: 400000
rsdb/cua/buffersize 9000
Previous Value: 5000
zcsa/presentation_buffer_area 8388608
Previous Value:8388608
zcsa/table_buffer_area 41943040
Previous Value:41943040
rtbb/buffer_length 25000
Previous Value:20000
rsdb/obj/buffersize 25000
Previous Value: 4096
abap/heap_area_dia: 3000000000
Previous Value: 2000000000
abap/heap_area_nondia: 0
Previous Value: 2000000000
abap/heap_area_total: 5000000000
Previous Value: 2000000000
After doing these chnages and there was a problem restarting the server, and then i made changes to the abap/buffersize parameter from 900000 to 600000 and then 500000 but the server never restarted.
So finally i have copied the instance profile which was earlier backed up back into the profile folder and the restarted the server which is working fine now.
Now my question is can any one plese help with the best settings so that i can resolve the FI issue and restart my server without any problems.
Reward points for sure.
Awaiting for your quick reply
Thanks in Advance
Regards
Harry

Hi,
I suggest you to follow below SAP Notes:
#146289   Parameter recommendations for 64-bits SAP Kernel
#425207   SAP memory management, current parameter ranges
#153641   Swap Space requirement for R.3 64-bits kernel
you should have at least 20GB swap space configured, at least 8GB RAM configured
On heap parameter:
      abap/heap_area_nondia: 0
      Previous Value: 2000000000
why you configure zero ? please maintain at 2GB
abap/buffersize is a very sensitve parameter. simply increasing it will end up in system emergency mode with PXA shared memory dump.
if you are running windows, then please activate ZAMM.
If you are running AIX, i suggest you to look into SAP Note 789477.
cheers,
Vincent

PXA_NO_SHARED_MEMORY

Dear Guys
we are facing ABAP dump almost 1000+ can you please check and suggets solution
Short text
    600000 kilo bytes of shared memory for PXA not available.
What happened?
    When starting the R/3 System, 600000 Kbytes of storage space
    was required for the ABAP/4 program buffer (PXA), but this
    was not available.
    The system was started as an emergency system and is not fully
    operational.
    It is intended only for display and to eliminate errors.
    Under no circumstances should it be used for production
    purposes.
Error analysis
    The error probably occurred when installing the
    R/3 system.
    The return code of the SAP shared memory control was 1.
    The error reported by the operating system is:
    Error number..... 0
    Error text....... "No error"
How to correct the error
    Report the error to the group responsible for installing your
    R/3 System.
    The current size of the PXA was set at 554312 kilobytes.
    You can increase or decrease the PXA in the SAP profile. When
    doing this, please refer to the relevent instructions in the
    installation manual.
    You can use the utility program 'ipclimits' to display the
    available system resources.
    If the error occures in a non-modified SAP program, you may be able to
    find an interim solution in an SAP Note.
    If you have access to SAP Notes, carry out a search with the following
    keywords:
    "PXA_NO_SHARED_MEMORY" " "
The parameters are set according to my RAM 20 GB according to iset below parameters
csi/enable                                  0
rdisp/elem_per_queue                        4000
icm/server_port_1                           PROT=SMTP,PORT= 2502
rsdb/obj/max_objects                        20000
rsdb/obj/buffersize                         50000
abap/shared_objects_size_MB                 100
sap/bufdir_entries                          10000
zcsa/db_max_buftab                          10000
abap/buffersize                             600000
zcsa/table_buffer_area                      100000000
rtbb/buffer_length                          60000
rsdb/cua/buffersize                         10000
zcsa/presentation_buffer_area               20000000
rdisp/appc_ca_blk_no                        1000
rdisp/wp_ca_blk_no                          1000
rsdb/ntab/entrycount                        30000
rsdb/ntab/ftabsize                          60002
rsdb/ntab/irbdsize                          15002
rsdb/ntab/sntabsize                         3000
Please suggest the solution.
Regards,
Somesh.K

Hi Somesh,
Three notes, very easy to understand and select:
Have a look:
4101 - PXA_NO_SHARED_MEMORY
1790345 - PXA_NO_SHARED_MEMORY
307976 - PXA_NO_SHARED_MEMORY
All here is needed to adjust abap/buffersize parameter keeping in mind the actual address space.
Divyanshu

No PXA Storage Space is available

Experts,
During Client Copy in SCCL, the buffer space has been completely used up and PXA Storage Space is not available.
Therefore, all other programs are giving dumps.
I have modified the profile parameter abap/buffersize and increased the size from 150000 to 300000.
But the server needs a reboot in order for the change to take effect.
Question: What will be the impact of the restart on the copy process? Will the copy start from the scratch?

Hi Joel,
You may want to check SAP notes and parameter documentation to set the abap buffersize parameter correctly based on your system.
Agreeging to Steve's above reply - After taking a restart to have the parameter values in-affect, you can always resume the client copy from the point it had stopped with error.
Hope you have sufficient user inactivity time to complete the Client Copy
Regards,
Varun

TSV_TNEW_PAGE_ALLOC_FAILED,Parameter wrong set these are abap dump

We are using windows 2003 server with 32 bit database oracle (500 GB)
all most of the jobs terminated with TSV_TNEW_page_ALLOC_faild ,paramerter rorg sert etc
please advise my sap parameter is ok or some change for the best utlization of the tehe memeory.
what is ths valuse of the phys_memsize
my parameter detils are the following..
rsdb/reco_add_error_codes                  |-12152 , -12560 , -3114 , -3113                                                                                |
abap/heap_area_dia
2000000000
nobuf/max_attempts
1200
rdisp/appc_ca_blk_no
1000
rdisp/wp_ca_blk_no
2050
ztta/roll_area
15000000
rdisp/PG_MAXFS
200000
gw/netstat_once
0
abap/heap_area_nondia
2000000000
rdisp/rfc_min_wait_dia_wp
5
enque/table_size
10000
gw/max_sys
1500
gw/max_overflow_size
25000000
rdisp/max_comm_entries
2000
rdisp/tm_max_no
2000
gw/max_conn
2000
rsdb/obj/max_objects
20000
rsdb/obj/buffersize
40000
sap/bufdir_entries
10000
zcsa/presentation_buffer_area
20000000
zcsa/db_max_buftab
10000
zcsa/table_buffer_area
100000000
rsdb/cua/buffersize
10000
rtbb/buffer_length
60000
rsdb/ntab/irbdsize
8000
rsdb/ntab/ftabsize
60000
rsdb/ntab/entrycount
30000
login/system_client
508
abap/buffersize
800500
rdisp/max_wprun_time
3000
SAPSYSTEMNAME
PRD
INSTANCE_NAME
DVEBMGS51
SAPSYSTEM
51
rdisp/wp_no_dia
10
rdisp/wp_no_btc
4
rdisp/wp_no_vb
4
rdisp/wp_no_vb2
1
rdisp/wp_no_enq
1
rdisp/wp_no_spo
1
SAPGLOBALHOST
PRDSVR
PHYS_MEMSIZE
2458
advans thanks
with best regards
venkat
|

read SAP note 88416.
set PHYS_MEMSIZE to 2700
delete all these parameters from instance and default profiles
restart SAP and try again:
em/initial_size_MB
    [PM]
    [PM]
Mbyte
---    em/max_size_MB
---    20000
---   100000
Mbyte
em/address_space_MB
    512
   4096
Mbyte
ztta/roll_first
    1
    1
Byte
---    ztta/roll_area
--- 2000000
--- 3000000
Byte
ztta/roll_extension
2000000000
2000000000
Byte
abap/heap_area_dia
2000000000
2000000000
Byte
abap/heap_area_nondia
2000000000
0
Byte
abap/heap_area_total
2000000000
[PM]*1048576
Byte
-    rdisp/ROLL_MAXFS
[BE] * 100
[BE] * 100
8KB Block
---    rdisp/ROLL_SHM
[BE] * 100
[BE] * 100
8KB Block
---    rdisp/PG_MAXFS
---    32768
---    32768
8KB Block
    rdisp/PG_SHM
[BE] * 50
[BE] * 50
8KB Block
thwen also check if it`s always the same program that fails. if it is aZ PROGRAM, ask your programmer to use less Internal memory.
obviously, the long term solution is 64-bit.

Physical Memory Upgrade [SAP, Oracle parameter changes]

Hello Guru,
Good day!
I'm not sure if I'm in the correct forum, please bare with me if I'm not.
We are actually planning to increase our Production [Physical Memory] server from its current size 15360GB including [oracle, SAP & OS] to 44GB memory. Do you have any idea how can we calculate to the most needed SAP / DB parameter should be increase after we allocate the 44GB in preparation for Go-Live. Below are details of my systems [oracle version, kernel, R/3 System, OS version, SAP parameter and DB parameter.
Reason for memory upgrade: will create two client in one system with a different number of users and different plant e.g. America / Canada
======================================================================
SAP R/3 Version: SAP 4.6C
Oracle Version: 10.2.0.4.0
OS Level: AIX 5.3
orapaa> oslevel -g
Fileset                                 Actual Level        Maintenance Level
bos.rte                                 5.3.8.0             5.3.0.0
Physical Memory
Real,MB   15360
======================================================================
kernel release               46D
kernel make variant       46D_EXT
compiled on                  AIX 1 5 0056AA8A4C00
compiled for                  64 BIT
compile time                  Aug 17 2007 10:57:49
update level                  0
patch number                  2337
source id                     0.2337
======================================================================
orapaa> prtconf
System Model: IBM,9117-MMA
Machine Serial Number: 06DDD01
Processor Type: PowerPC_POWER6
Processor Implementation Mode: POWER 6
Processor Version: PV_6_Compat
Number Of Processors: 4
Processor Clock Speed: 4208 MHz
CPU Type: 64-bit
Kernel Type: 64-bit
LPAR Info: 9 SWT_AMR_SADCB335_SAP_HA_PRI
Memory Size: 15360 MB
Good Memory Size: 15360 MB
Platform Firmware level: Not Available
Firmware Version: IBM,EM340_095
Console Login: enable
Auto Restart: true
Full Core: false
======================================================================
Our current used SAP parameter
Profile parameters for SAP buffers     Parameters Name               Value     Unit
Program buffer
                    abap/buffersize               850000     Kb
CUA buffer
                    rsdb/cua/buffersize               10000
Screen buffer
                    zcsa/presentation_buffer_area     20000000 Byte
Generic key table buffer
                    zcsa/table_buffer_area          100000000 Byte
Single record table buffer
                    rtbb/buffer_length               60000
Export/import buffer
                    rsdb/obj/buffersize               40000      kB
Table definition buffer
                    rsdb/ntab/entrycount          30000
Field description buffer
                    rsdb/ntab/ftabsize               60000     kB
Initial record buffer
                    rsdb/ntab/irbdsize               8000     kB
Short nametab (NTAB)
                    rsdb/ntab/sntabsize          3000     kB
Calendar buffer
                    zcsa/calendar_area          500000     Byte
Roll, extended and heap memory     EM/TOTAL_SIZE_MB          6144     MB
                    ztta/roll_area               6500000     Byte
                    ztta/roll_first               1     Byte
                    ztta/short_area               1400000     Byte
                    rdisp/ROLL_SHM               16384     8 kB
                    rdisp/PG_SHM               16384     8 kB
                    rdisp/PG_LOCAL               150     8 kB
                    em/initial_size_MB               4092     MB
                    em/blocksize_KB               4096     kB
                    em/address_space_MB          4092     MB
                    ztta/roll_extension               2000000000     Byte
                    abap/heap_area_dia          2000000000     Byte
                    abap/heap_area_nondia          2000000000     Byte
                    abap/heap_area_total          2000000000     Byte
                    abap/heaplimit               40000000     Byte
                    abap/use_paging               0
======================================================================
Oracle Parameter
Oracle Parameter Name     Value     Unit
SGA_MAX_SIZE          6192     MB
PGA_AGGREGATE_TARGET     400     MB
DB_CACHE_SIZE           0
SHARED_POOL_SIZE     960     MB
LARGE_POOL_SIZE          16     MB
JAVA_POOL_SIZE           32     MB
LOG_BUFFER          14246912
db_block_buffers          655360
Thanks and regards,
Mike

I feel the best way to get the parameters which needs to be adjusted is to go for EarlyWatch Check after increasing the Physical Memory of your SAP system, as we cannot say how and which parameters needs to be checked and changed.. as there is some dependiblity also between the parameters...
All the best !

Abap/buffersize Parameter?

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