You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-22 - 00:13
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
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack4slot6.osadl.org (updated Thu Aug 21, 2025 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11749521100,106pltrace0-21swapper/207:05:172
11749521070,103pltrace0-21swapper/707:05:227
11749521030,94pltrace0-21swapper/307:05:283
31621521010,0pltrace0-21swapper/509:32:175
31132960,1sleep10-21swapper/111:35:151
1174952830,75pltrace0-21swapper/607:05:206
1439927042,10sleep40-21swapper/407:05:344
1458726450,10sleep10-21swapper/107:07:551
2771552620,0pltrace0-21swapper/008:27:170
1441826248,10sleep50-21swapper/507:05:525
1232126146,11sleep00-21swapper/007:05:060
2046752210,4pltrace0-21swapper/709:13:077
2771552190,12pltrace28706-21cstates08:30:145
2098552190,0pltrace0-21swapper/712:08:587
3162152180,11pltrace78-21ksoftirqd/709:35:187
14957991812,5cyclictest0-21swapper/608:29:006
14952991812,5cyclictest0-21swapper/507:21:505
2771552170,1pltrace0-21swapper/508:28:195
2382052170,9pltrace54-21ksoftirqd/407:23:084
1709052170,5pltrace0-21swapper/711:02:437
1495799171,8cyclictest0-21swapper/609:49:486
1495299173,13cyclictest0-21swapper/510:52:325
14952991711,5cyclictest0-21swapper/512:21:535
14952991711,5cyclictest0-21swapper/510:50:005
1494099170,2cyclictest0-21swapper/212:10:172
14935991711,5cyclictest0-21swapper/110:17:431
758852160,12pltrace54-21ksoftirqd/409:49:144
2883152160,6pltrace78-21ksoftirqd/709:29:217
243172160,0sleep50-21swapper/512:15:005
2103152160,10pltrace54-21ksoftirqd/407:17:194
1709052160,0pltrace0-21swapper/711:06:247
1496199161,7cyclictest0-21swapper/711:48:127
1496199161,7cyclictest0-21swapper/711:48:127
1496199161,7cyclictest0-21swapper/708:20:457
1496199161,4cyclictest0-21swapper/712:20:197
1496199161,14cyclictest0-21swapper/709:44:277
1496199160,8cyclictest0-21swapper/707:49:417
1496199160,2cyclictest0-21swapper/712:10:147
1496199160,15cyclictest0-21swapper/710:08:187
1495799160,15cyclictest0-21swapper/607:25:366
14952991610,5cyclictest0-21swapper/507:16:265
1495299161,8cyclictest0-21swapper/509:21:205
14943991610,3cyclictest0-21swapper/312:35:053
1494399161,14cyclictest0-21swapper/310:37:263
14940991612,3cyclictest84-21kauditd09:50:012
1494099161,8cyclictest0-21swapper/212:33:202
1494099161,4cyclictest0-21swapper/210:59:512
1494099160,8cyclictest0-21swapper/209:40:332
14935991611,4cyclictest0-21swapper/107:26:201
1493599161,8cyclictest0-21swapper/112:11:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional