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2025-05-02 - 12:54
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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 Fri May 02, 2025 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21520521140,109pltrace0-21swapper/219:05:202
2432452980,56pltrace0-21swapper/719:05:397
2152052940,72pltrace0-21swapper/619:05:016
2152052920,80pltrace0-21swapper/519:05:175
2152052850,54pltrace0-21swapper/119:05:151
2432452790,70pltrace0-21swapper/319:08:183
2447526450,10sleep00-21swapper/019:07:380
2429425844,10sleep40-21swapper/419:05:264
1062552350,0pltrace0-21swapper/720:40:277
2737652280,0pltrace0-21swapper/721:10:207
2737652280,0pltrace0-21swapper/721:10:207
24837992511,13cyclictest0-21swapper/620:40:216
24819992512,12cyclictest0-21swapper/220:40:172
783952240,5pltrace0-21swapper/720:35:227
2781252200,4pltrace54-21ksoftirqd/400:04:174
2482899200,14cyclictest0-21swapper/422:27:004
2480799200,3cyclictest0-21swapper/022:36:530
1385552200,6pltrace0-21swapper/723:40:257
95552190,15pltrace54-21ksoftirqd/400:15:324
95552190,15pltrace54-21ksoftirqd/400:15:324
95552190,13pltrace54-21ksoftirqd/400:15:014
1341052190,13pltrace15710-21sensors20:45:262
1341052190,13pltrace0-21swapper/120:45:211
955452180,11pltrace54-21ksoftirqd/419:40:194
892552180,12pltrace11038-21ntpdc21:35:215
3017752180,3pltrace54-21ksoftirqd/421:11:204
3017752180,3pltrace54-21ksoftirqd/421:11:204
2781252180,12pltrace54-21ksoftirqd/400:05:134
2480799180,4cyclictest27943-21gltestperf20:10:180
892552170,11pltrace10397-21fschecks_time21:35:173
892552170,11pltrace0-21swapper/121:35:201
783952170,0pltrace0-21swapper/720:33:107
2483399172,8cyclictest0-21swapper/519:39:515
24833991711,5cyclictest0-21swapper/523:10:035
2483399171,9cyclictest0-21swapper/521:54:395
2483399170,9cyclictest0-21swapper/522:09:075
24828991711,5cyclictest0-21swapper/423:23:364
24828991711,5cyclictest0-21swapper/422:10:314
24819991714,2cyclictest0-21swapper/222:55:042
24807991711,5cyclictest0-21swapper/023:01:450
24807991711,5cyclictest0-21swapper/000:31:180
2348952170,6pltrace78-21ksoftirqd/720:02:007
2348952170,10pltrace54-21ksoftirqd/420:04:594
2006852170,12pltrace0-21swapper/621:55:246
1664452170,3pltrace0-21swapper/723:45:217
163052170,1pltrace1270-21pltrace-run22:15:344
1385552170,1pltrace0-21swapper/723:37:387
1341052170,14pltrace54-21ksoftirqd/420:40:484
95552160,6pltrace78-21ksoftirqd/700:13:087
892552160,10pltrace0-21swapper/621:35:246
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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