Frame Swap in Netweaver
Hi All,
I have question related to swpping monitored using ST02.
I read about "Frame Swaps" and found note 121808 (Swaps in program buffer although space is free) pertaining to the same.
The note speaks of parameter "abap/buffersize_part1" which leads to the term "Frames swapped".
It also says that the parameter does not have any effect as of Release 4.5A.
I would like to know the relevance of the "Frames Swapped" in performance tunning of Netweaver 700 systems.
As also how is the loading of large programs taken care or implemented in 700 systems?
Regards,
Navin Shettigar
Thanks manoj for the answer.
I do agree with your analysis of note but my query is not specific to the note.
The "Framed Swaps" entry still comes in 700 system while doing inidividual buffer analysis in ST02 along with "Object Swaps".
I am presuming that there has to be some use in 700 system else SAP wouldnt have kept the record for "Framed Swaps".
Regards,
Navin Shettigar
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Program Buffer - High Number of Swaps
Hi All,
We experiencing high number of program buffer swaps per day, they usually get into 500,000 - 700,000 range. Our abap/buffersize is 500,000 KB. It seems like the general suggestion of the buffersize is that it should be somewhere between 300-700 MB, which I thought 500 would be enough, at least enough no to have such huge numbers of swaps per day. The PHYS_MEMSIZE = 9057, as we have 16 GB of total server memory and 9 is dedicated to SAP, while the other 7 is to SQL Server. I have followed the note about zero admin memory management so other than PHYS_MEMSIZE parameter I don't think I have any memory restricting parameters in there.
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Swapping in ST02 in Initial Record Buffer rsdb/ntab/irbdsize
Hello All,
I've been trying to do some tuning in ST02 and was hoping someone might be able to explain why I am getting such a low hit rate on the Initial Records Buffer, and the high level of swapping, when there appears to be plenty free space and plenty free entries.
Here are the stats I see.
Efficiency
HITRATIO % 42
HITS 9,645
REQUESTS 22,790
DB access quality % 42
DB access 13,136
DB access saved 9,645
Reorgs 0
Size
Allocated KB 8,750
Available KB 7,500
Used KB 1,053
Free KB 6,447
Directory entries
Available 10,000
Used 3,801
Free 6,199
Swaps
Objects swapped 9,335
Frames swapped 0
Resets Total 0
Any clues would be much appreciated.
Thanks
SteveI have the same issue and my parameter settings are currently:
rsdb/ntab/irbdsize - 41500
rsdb/ntab/entrycount 45000
Are there any other suggestions? See below for swap information.
Efficiency HITRATIO % 43
HITS 10,243
REQUESTS 23,731
DB access quality % 43
DB access 13,488
DB access saved 10,243
Reorgs 0
Size Allocated KB 42,906
Available KB 41,500
Used KB 4,717
Free KB 36,783
Directory entries Available 11,250
Used 9,759
Free 1,491
Swaps Objects swapped 3,728
Frames swapped 0
Resets Total 0 -
Hi Guru's
I have a problem with teh buffer, appears me a swap overflow
Can you tell me, what is teh correct parameter for this objects?
Export/import 85.33 40,000 391 1.15 20,000 4,177 20.89 157,816
Efficiency HITRATIO % 85
HITS 10,604,365
REQUESTS 12,427,632
DB access quality % 100
DB access 0
DB access saved 0
Reorgs 0
Size Allocated KB 40,000
Available KB 34,059
Used KB 29,842
Free KB 391
Directory entries Available 20,000
Used 15,823
Free 4,177
Swaps Objects swapped 9,810
Frames swapped 157,816
Resets Total 0
My current parameters are:
rsdb/obj/buffersize 40000 kB
rsdb/obj/max_objects 20000
rsdb/obj/large_object_size 8192 Bytes
rsdb/obj/mutex_n 0
And I have other prameter wrong
Initial records 98.38 17,250 1,699 10.62 10,000 6,044 60.44 9,469
Efficiency HITRATIO % 98
HITS 816,105
REQUESTS 829,581
DB access quality % 98
DB access 13,428
DB access saved 816,103
Reorgs 0
Size Allocated KB 17,250
Available KB 16,000
Used KB 14,301
Free KB 1,699
Directory entries Available 10,000
Used 3,956
Free 6,044
Swaps Objects swapped 9,469
Frames swapped 0
Resets Total 0
And my curretn parameters are:
rsdb/ntab/irbdsize 16000 kB
rsdb/ntab/entrycount 40000
I hope, you can help me!!
THANKS!!Hi Carlos,
From ST02 you can "current parameters" button, that will tell all current parameters per buffer.
You are bound to have swaps in some buffers altough ideally the number should be 0. Less than 10,000 a day is the maximum recommended by SAP.
Have a look at the history of the buffer and check when the swaps happened etc. Is it daily or a one off because something abnormal was running on the system a particular day.
Then check if the swaps happen because you're running out of space in the buffer or number of entries allowed. Then you can start thinking of tuning it.
Remenber that the swaps you see are since startup, so look at the history as well.
Let me know if you need any more help.
Pedro -
Please help - motion tween + single frame
ok , so i know how to do motion tween... and i know how to do single frame swap outs (like for a mouth) but i can't do both
here is how i have it set up,
full body
(double click that)
head
(double click that)
face
i have the head as single frame so i can use several mouths, but would also like the head to motion tween. is this possible?
-Jarrod
[email protected]
www.jgecek.blogspot.comAwesome, thanks so much , i got it to work. I'm new at flash, so it's still confusing WHY that worked, but it's working none the less.
Now to make it LOOK good!
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No swaps anyware still hit Ratio around 4% for Initial Record Buffer
Dear Gurus
I am using ABAP NW7.0 System.
in the system all buffers have hit ratio 99+%
but the initial record buffer hit ratio it below 10%
any way there is no swaps at all still hit Ratio is 4%
The current parameters are:
rsdb/ntab/irbdsize --->6000
rsdb/ntab/entrycount---> 20000
HITRATIO -
> % 4
HITS -
> 64
REQUESTS -
> 1.729
DB access quality % -
> 4
DB access -
> 1.656
DB access saved -
> 64
Reorgs -
> 0
Allocated -
> KB 6.625
Available -
> KB 6.000
Used -
> KB 1.099*
Free -
> KB 4.901
Available -
> 5.000
Used -
> 1.656
Free -
> * 3.344*
Objects swapped -
> 0
Frames swapped -
> 0
Total -
> 0
Pl suggest me how can i have the hitratio more.
Thanks in advanceHello,
Unfortunately we can not tell exactly why the value is low,
however it is not necessarily an incorrect value.
The quality of a buffer and how often it is accessed is measured by the
'%Hit Ratio'. This value will indicate if the information stored in the
buffers, such as table entries, programs and screens, is being hit
directly from the buffer itself or, on the other hand, if the system
needs to bring that data from the database since it was not found in the
buffer.
To find out the buffers with poor quality, first check the system
startup time. When the system is started, all buffers (except the
program buffer which has a pre-load) are initially empty. Therefore,
all objects that are accessed for the first time have to be read from
the database and then loaded into the buffers.
If objects are not yet in the buffer, the hit ratio for the buffer will
be low. The hit ratio increases from the time objects are loaded into
the buffers. The rate of the increase depends on the workload in the
system and is different for each buffer.So it is to be noted that how often you restart the system which resuls in the loading of object again and causes hit rate to be low.
Poor buffer quality is not always due to a real problem. For example,
transports into a system can reduce buffer quality. Keep in mind though
that a value lower does not always shows that you have a problem.
A more pressing concern would be if we saw swaps on the system. As you
can see, there are no swaps.
Swapping occurs when the buffer is full, and the SAP System has to
load additional objects into the buffer. Objects in the buffer that
were used the least recently are removed. In this context, the term
"swap" means the objects removed from the buffer are lost and cannot
be replaced until a new database access is performed (replacing what
was lost).
There are two possible reasons for swapping
1 There is no space left in the buffer data area
The buffer is too small. You should increase the buffer size.
2 There are no directory entries left.
Therefore, to conclude, although the hitratio appears low it does
not mean that there are any performance issues. The fact that there is
sufficient free space and there are no swaps confirm this.
You can try to increase size of intial record buffer(in steps) as from current setting it seems to be small.
I hope this helps.
Regards,
Archana -
I have a floor plan of a shopping center with 24 rollover buttons. Each button has been sliced and linked to a frame (swap image) that shows the facade of a store. All photos (24 in all) preside in the same location on the canvas. Here is my problem, when previewing, only ten of the buttons work. No matter how I arrange and re-arrange behaviors, only ten buttons will link to the photos. I have tried this several times and the result is the same. Does Fireworks place a limit on the number of disjointed rollovers? I am using an older version (mx)...does anyone know if a later version fixed this? Any help is certainly appreciated!
Hi Joyce,
I spent some time playing with a practice file this morning and everthing seems to work okay now, so it was something I did wrong. Thanks so much for your insight and advice.
I do have one more question. On the attached file, which is the practice file I mentioned above, I want to form a second target to a trigger. In my file, I inserted another slice and I linked the frame named SubLink Number 1 to trigger number 1. My objective is to have the sublink L1 appear only when targeted image number 1 is triggered. In the real world, this sublink would be either detailed pictures or text describing the original target scene when triggered. When I proceeded to link Button number one to the sublink, it worked fine, but it also appears when I pressed any of the other buttons...which is not a desirable event. What am I missing?
Thanks,
Bob -
Roll, extended and heap memory EXTM
hi Dear,
I am getting issue performance issue one new server while the system specs is:
*Processor 2 * x3690 X5, Xeon 8C E7-2820 105W 2.00GHz
Cache 18MB L3
Memory (Installed) 32 GB PC3L-10600 CL9 ECC DDR3 1333MHz
Instance Profile
Parameter Name Parameter value
em/initial_size_MB 12288
ztta/roll_extension 2000683008
abap/swap_reserve 20971520
abap/heaplimit 40894464
abap/heap_area_total 15204352000
abap/heap_area_nondia 0
abap/heap_area_dia 2000683008
rdisp/PG_MAXFS 32768
rdisp/PG_SHM 16384
rdisp/ROLL_MAXFS 32768
rdisp/ROLL_SHM 32768
ztta/roll_area 3000320
ztta/roll_first 1024
rsdb/ntab/sntabsize 9631
rsdb/ntab/irbdsize 19261
rsdb/ntab/ftabsize 96305
rsdb/ntab/entrycount 64167
zcsa/presentation_buffer_area 14640128
rsdb/cua/buffersize 8000
rtbb/buffer_length 90000
zcsa/table_buffer_area 30000000
abap/buffersize 1500000
PHYS_MEMSIZE 18432
login/no_automatic_user_sapstar 1
login/password_history_size 5
login/fails_to_user_lock 5
rsdb/obj/buffersize 40000
rdisp/wp_no_dia 12
rdisp/wp_no_btc 3
rdisp/wp_no_enq 1
rdisp/wp_no_vb 2
rdisp/wp_no_vb2 1
rdisp/wp_no_spo 2
rsdb/obj/max_objects 2500
rdisp/max_wprun_time 2400
would you give me your expert Suggestion with respect to system Specs(Processor_8C and RAM_32gb)
Regards,hi Gaurav,
1) When this dump occurs , ( during specific activity or anytime).
Dump is occurring against specific transaction when users are executing tcode with big selection criteria.
System: PRDSAP_PRD_00 Tune summary
Date + Time of Snapshot: 21.02.2012 09:37:21 Startup: 19.02.2012 22:05:14
Buffer HitRatio % Alloc. KB Freesp. KB % Free Sp. Dir. Size FreeDirEnt % Free Dir Swaps DB Accs
Nametab (NTAB) 0
Table definition 86.81 21,809 64,167 127,586 192,179
Field definition 77.90 101,318 45,098 46.83 64,167 50,613 78.88 109,591 123,279
Short NTAB 98.44 11,636 8,958 93.01 16,041 13,391 83.48 0 2,650
Initial records 0.99 21,266 14,669 76.16 16,041 2,860 17.83 53,460 66,641
0
program 96.73 1,500,000 795,367 57.04 375,000 305,187 81.38 0 209,493
CUA 99.30 8,000 3,129 47.71 4,000 3,754 93.85 0 252
Screen 99.59 14,297 9,503 67.43 2,000 1,731 86.55 0 275
Calendar 100.00 488 366 76.57 200 48 24.00 0 152
OTR 100.00 4,096 3,375 100.00 2,000 2,000 100.00 0
0
Tables 0
Generic Key 99.73 29,297 2,399 8.65 5,000 1,611 32.22 39 14,181
Single record 88.77 90,000 51,599 57.45 500 403 80.60 0 72,187
0
Export/import 92.43 40,000 34,517 88.28 2,500 975 39.00 0
Exp./ Imp. SHM 53.57 4,096 3,203 94.90 2,000 1,999 99.95 0
SAP Memory Curr.Use % CurUse[KB] MaxUse[KB] In Mem[KB] OnDisk[KB] SAPCurCach HitRatio %
Roll area 0.12 325 3,488 262,144 0 IDs 98.77
Page area 0.25 666 94,624 131,072 131,072 Statement 93.00
Extended memory 4.03 675,840 6,881,280 16,773,120 0 0.00
Heap memory 0 1,084,762 0 0 0.00
Call Stati HitRatio % ABAP/4 Req ABAP Fails DBTotCalls AvTime[ms] DBRowsAff.
Select single 99.84 1,755,375 267,018 9,898 0 1,488,357
Select 1.53 1,471,444 0 561,166 0 5,708,457
Insert 0.00 225,271 5,926 58,267 0 4,146,957
Update 0.00 497 25 572 0 507
Parameters of SWAP entries
Efficiency HITRATIO % 87
HITS 1,264,801
REQUESTS 1,456,982
DB access quality % 87
DB access 192,179
DB access saved 1,264,787
Reorgs 0
Size Allocated KB 21,809
Available KB 18,297
Used KB 18,297
Free KB 0
Free KB 0
Directory entries Available 64,167
Used 64,167
Free 0
Swaps Objects swapped 127,586
Frames swapped 0
Resets Total 0
you can check the starting date of above server while there are some users are login on this server for data testing.
would you suggest me the value of above parameters?
Regards,
Regards, -
No free space in directory entries for NTAB buffer
Gurus ,
In ST02 -> for table definitions buffer there was a red alert with the SWAP count as 953275 .
hence i Double clicked on the swaps count to see the details , which is shown below ,
efficiency :
hit ratio 70
size :
allocated : 6799
available : 5703
used :5703
free : 0
Directory entries :
available : 20000
used : 20000
free : 0
swaps :
objects swapped : 953833
frames swapped : 0
what will happen if the 'directory entry ' and 'size' is zero we.
what process will get affected because of this ?
what i need to do next ..
guide me gurusHi Susin,
To Answer your question, directory free entries are '0' --> which means table definition buffer is full. That is the reason we can see "objects swapped : 953833"
Try to increase the size of table definition buffer which is low '6799' now.
I feel you can even double the value and observe the performance.
For General information regarding Hit ratio and Swapping:
The quality of a buffer and how often it is accessed is measured by the
'%Hit Ratio'. This value will indicate if the information stored in the
buffers, such as table entries, programs and screens, is being hit
directly from the buffer itself or, on the other hand, if the system
needs to bring that data from the database since it was not found in the
buffer.
To find out the buffers with poor quality, first check the system
startup time. When the system is started, all buffers (except the
program buffer which has a pre-load) are initially empty. Therefore,
all objects that are accessed for the first time have to be read from
the database and then loaded into the buffers.
If objects are not yet in the buffer, the hit ratio for the buffer will
be low. The hit ratio increases from the time objects are loaded into
the buffers. The rate of the increase depends on the workload in the
system and is different for each buffer.So it is to be noted that how often you restart the system which resuls in the loading of object again and causes hit rate to be low.
Poor buffer quality is not always due to a real problem. For example,
transports into a system can reduce buffer quality. Keep in mind though
that a value lower does not always shows that you have a problem.
Swapping occurs when the buffer is full, and the SAP System has to
load additional objects into the buffer. Objects in the buffer that
were used the least recently are removed. In this context, the term
"swap" means the objects removed from the buffer are lost and cannot
be replaced until a new database access is performed (replacing what
was lost).
There are two possible reasons for swapping
1 There is no space left in the buffer data area
The buffer is too small. You should increase the buffer size.
2 There are no directory entries left.
Hope this helps.
For any other information, feel free to reply me.
Thanks and Regards,
Pavan Kumar Gali. -
Hi Guys,
I would appreciate your assistance/recommendations with Buffer Tuning
Im experiencing high swapping on Several Buffer as shown Below
Which considerations would you take for adjusting these buffers to optimal Values?
Do you estimate the parameters values by incrementing by 10-20% ? Or is there a better way to determine the best values.
Thanks a lot for your help.
Nametab -->Table Definition
Efficiency HITRATIO % 97
HITS 119.405.209
REQUESTS 123.408.979
DB access quality % 97
DB access 4.006.836
DB access saved 119.399.849
Reorgs 0
Size Allocated KB 9.800
Available KB 8.219
Used KB 8.219
Free KB 0
Free KB 0
Directory entries Available 28.826
Used 28.826
Free 0
Swaps Objects swapped 1.032.168
Frames swapped 0
Resets Total 0
Table definition buffer TTAB
rsdb/ntab/entrycount 28826 Max. number of table definitions buffered
Nametab-->Field Definition
Efficiency HITRATIO % 100
HITS 80.761.920
REQUESTS 81.137.309
DB access quality % 100
DB access 363.063
DB access saved 80.761.378
Reorgs 0
Size Allocated KB 45.515
Available KB 43.263
Used KB 40.109
Free KB 3.154
Directory entries Available 28.826
Used 7.176
Free 21.650
Swaps Objects swapped 355.332
Frames swapped 0
Resets Total 0
rsdb/ntab/ftabsize 43263 kB Size of field description buffer
Program
Efficiency HITRATIO % 100
HITS 385.544.192
REQUESTS 385.922.653
DB access quality % 100
DB access 653.940
DB access saved 565.109.488
Reorgs 0
Size Allocated KB 400.000
Available KB 370.780
Used KB 369.428
Free KB 1.352
Gaps KB 1.303
Directory entries Available 100.000
Used 10.385
Free 89.615
Swaps Objects swapped 206.098
Frames swapped 0
Resets Total 0
Program buffer PXA
abap/buffersize 400000 kB Size of program buffer
abap/pxa shared Program buffer mode
Export/Import
Efficiency HITRATIO % 81
HITS 13.737.920
REQUESTS 16.906.841
DB access quality % 100
DB access 0
DB access saved 0
Reorgs 0
Size Allocated KB 4.096
Available KB 3.375
Used KB 2.757
Free KB 253
Directory entries Available 2.000
Used 1.031
Free 969
Swaps Objects swapped 32.476
Frames swapped 428.617*
Resets Total 0
Export/import buffer EIBUF
rsdb/obj/buffersize 4096 kB Size of export/import buffer
rsdb/obj/max_objects 2000 Max. number of objects in the buffer
rsdb/obj/large_object_size 8192 Bytes Estimation for the size of the largest object
rsdb/obj/mutex_n 0 Number of mutexes in Export/Import bufferHi Martin,
Since 20GB set to MSSQL DB, you can reserve 3GB for system application, process, backup, external process and etc.
Therefore, you can allocate 27GB to SAP system.
You can allocate 22GB to PHYS_MEMSIZE, abap/buffersize to 1000000 and 30% to SAP buffer in ST02 where you noticed alot of SWAP. Also, you can allocate additional space to rdisp/ROLL_SHM and rdisp/PG_SHM if the percentage of "In Memory used" is around or more than 80%.
You can check based on the history usage in ST02.
However, try not the exceed the shared memory of 27GB for total memory assigned for SAP system, you can check at ST02 -> detailed analysis -> storage.
Cheers,
Nicholas Chang -
BSP timeout issue - 500 connection timeout(-5)
Hi all,
I know there were quite a bit of postings regarding this topic, however, I could not locate the appropriate solution to the scenario that we are currently experiencing. Any input on this is greatly appreciated. We have also posted an OSS message regarding this as well.
ERROR:
500 Connection timed out (-5)
Error: -5
Version: 6020
Component: ICM
Module: icxxthr_mt.c
Line: 2464
Detail: Connection to partner timed out
We have a stateless BSP application, and the page in question is set as "stateful from now until page change", and the page type is flow logic. We have this application running in production for a year now, and always receive complaints from a specific user that she can't load up her page (a 500 connection timeout(-5) error got displayed instead). Our basis folks have set up the TIMEOUT parameter as 900 secs, and the icm/keepalive parameter as 60 secs. We attempted to test with the same amount of data in both our test and production environments, and with the same system parameter settings (TIMEOUT and icm/keepalive parameters), however, we noticed we did not get timed out in our test environment, but continued to get a connection timeout error in the production environment (only when we retrieved data from this user). We tried to troubleshoot by following the steps listed below.
1) We tried to narrow down to see whether it was the data extraction part within the program that's prolonging the process. We executed the Function module in the backend (R/3) that will perform the data extraction of the program, and on average, it took about 100,000,000 microseconds to finish running in both environment. And most of the time, the Function Module in our production environment finished faster than our Test environment.
2) Next step, we executed the BSP application via our portal environments(test and production), and we did not get a timeout error in the test envionrment; however, in our production environment, within 2 minutes or so, we received a connection timeout error.
The differences between the 2 systems is minimal, and in fact, our production server is much powerful (hardware wise) than our test system. Other than some "unknown to us" system settings (from looking at the error, it's ICM related?), I cannot think of what else will cause the connection timeout that we are currently facing. I spoke with our basis folks, and they have no idea either. Can this be user specific (I doubt it)?
Any help or input from anyone is greatly appreciated.
Thanks in advance for all your help!!!
Best regards,
CyannaThanks Raja and Amandeep for your response. All the system profile are consistent across the production server. I have a question for Amandeep. What's exactly a frame swap application? Is it portal related? We are still trying to troubleshoot the issue, and we are still trying to figure out whether there is a system parameter difference between the 2 systems. We even checked the BSP performance wiki.....
Please, any help you can offer is greatly appreciated!
Thanks much and regards,
Cyanna -
Reversed or swapped frame glitch in clips logged and transferred from GH2
Hi
When I log and transfer 24p AVCHD footage from my panasonic GH2 in FCE I'm getting occasional swapped, backwards or reversed frames - it appears as a movement glitch in the final video file. What is happening is that every few minutes, I see this pattern: two frames will be swapped (they are in reverse order) then one frame where it should be, then another two that are swapped (or in reverse order).
I can't figure out a pattern as to when it happens, but it happens in the same place every time i transcode, even if i set different in/out points. Shows up when the resulting AIC files are played in quicktime player also.
However this glitch does NOT show up when i play the original AVCHD file from the camera in the log and transfer window or in VLC - so its not the camera's fault - it's FCE's transcoder.
You can fix it by just re-arranging the frames when editing, but its really annoying to try to find them all when you're editing a long project like a concert.
Anyone else have this problem?
Or can anyone recommend a good and inexpensive 3rd party app to transcode my footage assuming I can't fix this in FCE?
Thanks!Actually it does support 24fps media, it just doesn't let you edit on a 24fps timeline, which makes working with 24fps media annoying - you end up with duplicated frames and therefore somewhat jerky motion.
But, what actually is coming out of the camera is this particular case is a 29.97fps video "labeled" as 24fps @ 80% speed - (I dunno - ask panasonic why they did that…). When you edit the headers of the resulting quicktime movie, you can get a 29.97fps 1080p video that works great in FCE's 1080p30 timeline (albeit without sound because the GH2 does not record it in this mode).
I could see that maybe FCE has a problem logging and capturing 24p footage since it does not support 24p timelines, but more likely seems to me like maybe an incompatibility with the AVCHD format in which the GH2 is shooting.
I'm trying out clipwrap, but unfortunately the demo wont go far enough into my clip to test if it fixes this glitch! (1 min time limit) Neither will the VoltaicHD demo.
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