You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-05-12 - 08:10
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rackdslot1.osadl.org (updated Mon May 12, 2025 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3782996725,6cyclictest33-21ksoftirqd/223:05:192
2847191640,8ptp4l0-21swapper/019:05:210
3782996221,5cyclictest33-21ksoftirqd/222:32:202
2847191620,5ptp4l0-21swapper/121:55:251
2847191600,5ptp4l0-21swapper/120:30:231
3782995927,3cyclictest33-21ksoftirqd/200:07:232
3782995926,4cyclictest33-21ksoftirqd/221:41:552
3782995926,4cyclictest33-21ksoftirqd/221:41:552
2847191590,4ptp4l0-21swapper/220:05:442
3782995828,4cyclictest33-21ksoftirqd/200:04:042
3782995826,4cyclictest33-21ksoftirqd/219:29:252
3782995824,4cyclictest33-21ksoftirqd/223:23:412
2847191580,4ptp4l0-21swapper/323:26:483
2847191580,4ptp4l0-21swapper/122:49:321
2847191580,4ptp4l0-21swapper/021:00:310
2847191580,14ptp4l0-21swapper/300:16:053
3782995728,4cyclictest33-21ksoftirqd/223:30:222
3782995728,4cyclictest33-21ksoftirqd/222:52:122
3782995724,4cyclictest33-21ksoftirqd/223:53:272
3782995724,4cyclictest33-21ksoftirqd/220:38:412
2847191570,5ptp4l0-21swapper/119:07:421
2847191570,4ptp4l0-21swapper/123:48:121
2847191570,4ptp4l0-21swapper/123:48:121
2847191570,4ptp4l0-21swapper/123:13:131
3782995629,3cyclictest33-21ksoftirqd/223:41:582
3782995628,4cyclictest33-21ksoftirqd/220:24:412
3782995627,3cyclictest33-21ksoftirqd/223:29:502
3782995626,4cyclictest33-21ksoftirqd/221:19:452
3782995626,4cyclictest33-21ksoftirqd/219:45:422
3782995624,4cyclictest33-21ksoftirqd/223:12:302
3782995624,4cyclictest33-21ksoftirqd/221:30:052
3782995624,3cyclictest33-21ksoftirqd/222:57:522
3782995623,4cyclictest33-21ksoftirqd/220:45:352
3782995623,3cyclictest33-21ksoftirqd/219:19:302
2847191560,13ptp4l0-21swapper/321:40:253
2847191560,13ptp4l0-21swapper/321:40:253
3782995527,4cyclictest33-21ksoftirqd/200:18:172
3782995527,3cyclictest33-21ksoftirqd/200:34:392
3782995525,8cyclictest33-21ksoftirqd/220:32:192
3782995524,4cyclictest33-21ksoftirqd/220:58:242
3782995523,5cyclictest33-21ksoftirqd/223:35:102
3782995523,4cyclictest33-21ksoftirqd/221:46:292
3782995523,4cyclictest33-21ksoftirqd/220:05:002
3782995522,3cyclictest33-21ksoftirqd/222:28:442
3782995520,8cyclictest33-21ksoftirqd/219:55:292
2847191550,4ptp4l0-21swapper/123:30:101
2847191550,3ptp4l0-21swapper/121:35:381
3782995426,7cyclictest33-21ksoftirqd/200:40:002
3782995423,4cyclictest33-21ksoftirqd/222:24:332
3782995423,4cyclictest33-21ksoftirqd/219:31:412
3782995421,4cyclictest33-21ksoftirqd/222:06:392
378099547,6cyclictest24351-21latency_hist19:55:010
378099540,10cyclictest21717-21systemctl20:55:280
2847191540,4ptp4l0-21swapper/121:19:071
2847191540,4ptp4l0-21swapper/100:38:591
3782995327,7cyclictest33-21ksoftirqd/221:23:262
3782995327,3cyclictest33-21ksoftirqd/219:35:102
3782995327,3cyclictest33-21ksoftirqd/219:35:092
3782995326,7cyclictest33-21ksoftirqd/223:56:502
3782995326,7cyclictest33-21ksoftirqd/222:10:252
3782995325,7cyclictest33-21ksoftirqd/200:20:472
3782995324,7cyclictest33-21ksoftirqd/200:11:222
3782995324,5cyclictest33-21ksoftirqd/222:39:482
3782995324,4cyclictest33-21ksoftirqd/221:59:152
3782995321,4cyclictest33-21ksoftirqd/222:40:292
3782995321,3cyclictest33-21ksoftirqd/219:24:102
378099537,6cyclictest18577-21grep00:15:330
378099537,6cyclictest15084-21latency_hist19:34:590
378099532,15cyclictest26011-21expr23:25:160
2847191530,4ptp4l0-21swapper/123:04:261
3782995226,7cyclictest33-21ksoftirqd/222:00:442
3782995226,6cyclictest33-21ksoftirqd/223:19:112
3782995226,6cyclictest33-21ksoftirqd/223:19:112
3782995224,4cyclictest33-21ksoftirqd/222:46:002
3782995222,5cyclictest33-21ksoftirqd/221:25:382
3782995220,4cyclictest33-21ksoftirqd/222:16:212
3782995219,5cyclictest33-21ksoftirqd/221:13:402
378099527,6cyclictest21702-21cut00:25:140
2847191520,4ptp4l0-21swapper/122:40:541
2847191520,3ptp4l0-21swapper/120:03:101
2847191520,3ptp4l0-21swapper/119:21:561
2847191520,12ptp4l0-21swapper/121:47:151
3782995122,4cyclictest33-21ksoftirqd/221:54:312
3782995121,6cyclictest33-21ksoftirqd/221:05:282
3782995120,4cyclictest33-21ksoftirqd/221:36:192
3782995120,4cyclictest33-21ksoftirqd/220:25:422
3782995117,3cyclictest33-21ksoftirqd/220:41:372
378099515,7cyclictest7850-21fschecks_count23:55:170
378099514,9cyclictest28705-21ls20:00:290
2847191510,4ptp4l0-21swapper/100:33:341
2847191510,4ptp4l0-21swapper/100:15:001
3782995022,7cyclictest33-21ksoftirqd/220:18:212
3782995021,4cyclictest33-21ksoftirqd/223:45:262
3782995021,4cyclictest33-21ksoftirqd/223:45:262
378099508,6cyclictest0-21swapper/021:20:110
378099505,6cyclictest3089-21grep23:45:180
378099505,6cyclictest3089-21grep23:45:170
378099504,9cyclictest5474-21sed20:20:280
378099501,11cyclictest9214-21/usr/sbin/munin21:40:290
378099501,11cyclictest9214-21/usr/sbin/munin21:40:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional