High roll wait time on st03n task type other

[Former Member]

Hello All,

I found there is very high roll wait time of task type other on the screen of st03n.

Because of its high rollw wait time, as a result, its response time is

high , even higher than background task type.

Task Type Name	Number of Dialog Steps	Average response Time /Dialog Step (ms)	Avg. Processing Time	Average CPU Time (ms)	Ø DB Time (ms)	Average Roll Wait Time (ms)
ALE	594	123.8	71.4	13.2	39.2	3.3
AUTOABAP	40320	1832.0	1605.5	392.2	198.8	0.0
AUTOCCMS	201597	1.5	1.0	0.1	0.0	0.0
AUTOTH	179680	1.5	0.9	0.1	0.0	0.0
BACKGROUND	676167	21080.6	11995.2	6781.6	9040.7	0.0
BUFFER SYNC	100799	6.4	1.5	1.0	4.5	0.0
DDLOG CLEANUP	100799	2.2	0.9	0.0	0.8	0.0
DEL. THCALL	105827	2.7	1.3	0.5	0.7	0.0
DIALOG	928354	1114.4	370.7	214.5	655.9	86.1
HTTP	94888858	286.5	216.8	99.7	54.2	4.2
OTHER	251	134709.3	532.7	48.5	6.6	134157.5
RFC	289891538	1716.3	85.8	13.3	53.0	1564.6
RPCTH	186	1135.0	486.4	186.8	648.1	0.0
SPOOL	201597	4.3	3.1	0.5	0.6	0.0
UPDATE	3944032	85.0	13.1	8.6	68.5	0.0
UPDATE2	898268	94.3	30.1	18.1	62.6	0.0

I found that there are some RFC common routine program like SAPMSSY1 and SAPMHTTP lead to high roll

wait time, please see the table.

Report or Transaction name	Number of Dialog Steps	Total Response Time (s)	Average response Time/Dialog Step (ms)	Total Roll Wait Time (s)	Ø Roll Wait Time	Total Processing Time (s)	Avg. Processing Time	Total CPU Time (s)	Average CPU Time (ms)	Ø DB Time (ms)
SAPMSSY1	3	29316	9771956.0	29313	9770842.0	2	731.7	0	83.3	3.7
SAPMHTTP	219	4491	20505.8	4359	19906.4	129	589.4	12	53.5	6.2
SM51	4	2	484.0	0	54.5	1	143.5	0	2.5	0.3
SE11_OLD	1	2	1701.0	1	996.0	1	532.0	0	20.0	170.0
ZCIC431	1	1	966.0	0	257.0	1	666.0	0	100.0	38.0
ORA_SPACE	1	1	686.0	0	29.0	1	615.0	0	70.0	39.0
<NUMBER RANGE BUFFER>	22	0	4.5	0	0.0	0	2.1	0	0.5	2.0

How could I tuning it?

Thank you very much.

[alwina_enns]

Hello Enhui Jin,

for the program SAPMSSY1 did you already check the notes:

1656838 - SAPMSSY1 has an unusually long average dialog response
1698882 - SAPMSSY1 has an unusually long average dialog (2)

if this is the case in your system?

Regards,
Alwina