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2025-11-27 - 20:54
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 highest latencies:
System rack7slot8.osadl.org (updated Thu Nov 27, 2025 13:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21645223841,60sleep00-21swapper/007:09:480
217439910747,44cyclictest101ktimersoftd/009:18:190
217439910647,40cyclictest0-21swapper/012:16:190
217439910549,20cyclictest8504-21/usr/sbin/munin12:30:230
217439910458,27cyclictest101ktimersoftd/009:27:100
217439910274,13cyclictest101ktimersoftd/009:00:050
217439910156,27cyclictest101ktimersoftd/007:17:100
217439910060,25cyclictest101ktimersoftd/008:42:100
950629816,14sleep0101ktimersoftd/010:26:530
21743999737,41cyclictest0-21swapper/012:36:250
21743999644,33cyclictest15554-21runrttasks08:50:120
21743999617,38cyclictest22480-21sshd07:10:400
21743999569,12cyclictest101ktimersoftd/009:22:090
21743999352,24cyclictest101ktimersoftd/011:27:090
21743999249,30cyclictest3650irq/20-4900000007:50:240
21743999246,12cyclictest101ktimersoftd/011:51:140
21743999230,47cyclictest22362-21munin-run11:20:030
320992910,6sleep032100-21aten_r7power_en09:50:130
21743999166,10cyclictest101ktimersoftd/009:35:210
21743999145,30cyclictest3650irq/20-4900000009:40:470
21743998943,37cyclictest10250irq/56-4a10000009:49:340
21743998929,45cyclictest332-21seq12:00:050
21743998842,32cyclictest10250irq/56-4a10000010:21:360
21743998826,30cyclictest101ktimersoftd/011:40:310
21743998758,13cyclictest101ktimersoftd/010:17:070
21743998754,15cyclictest10150irq/55-4a10000009:07:170
21743998732,16cyclictest12520-21apt-get08:40:070
21743998650,16cyclictest10150irq/55-4a10000008:30:240
21743998646,22cyclictest0-21swapper/011:10:130
21743998626,44cyclictest1336-21runrttasks11:24:010
21743998559,11cyclictest101ktimersoftd/010:05:320
21743998548,23cyclictest101ktimersoftd/007:20:150
21743998539,35cyclictest14358-21runrttasks10:45:540
21743998538,10cyclictest101ktimersoftd/010:35:450
21743998520,18cyclictest28325-21latency_hist07:35:020
21743998515,34cyclictest10604-21users10:30:500
2174399848,28cyclictest1356-21snmpd08:19:540
21743998457,12cyclictest101ktimersoftd/010:00:020
21743998436,32cyclictest101ktimersoftd/010:00:270
2174399843,44cyclictest1356-21snmpd09:30:190
21743998431,40cyclictest101ktimersoftd/008:07:110
21743998421,51cyclictest10250irq/56-4a10000011:31:080
21743998345,28cyclictest10150irq/55-4a10000007:45:530
21743998321,43cyclictest1424-21nginx07:55:050
21743998314,34cyclictest1356-21snmpd11:00:580
269622825,11sleep00-21swapper/007:29:010
21743998255,12cyclictest101ktimersoftd/011:46:110
2174399818,20cyclictest21505-21users09:10:510
21743998152,21cyclictest29591-21sendmail07:40:010
21743998119,22cyclictest19212-21apt-config09:05:060
21743998111,35cyclictest1356-21snmpd08:29:560
2174399808,21cyclictest4998-21ntp_states10:10:380
21743998049,15cyclictest10150irq/55-4a10000008:00:390
2174399799,37cyclictest1356-21snmpd10:55:570
2174399797,36cyclictest12895-21ntp_states10:40:410
21743997954,11cyclictest101ktimersoftd/008:24:550
21743997935,31cyclictest101ktimersoftd/011:35:410
21743997912,49cyclictest7888-21apt-config12:30:070
21743997912,48cyclictest3269-21runrttasks12:10:340
21743997828,12cyclictest0-21swapper/011:07:100
2174399779,16cyclictest1896-21diskstats12:05:250
21743997759,10cyclictest101ktimersoftd/008:10:220
21743997749,13cyclictest10150irq/55-4a10000008:45:390
21743997747,15cyclictest10150irq/55-4a10000012:01:000
2174399766,33cyclictest5835-21ntp_states12:20:430
21743997646,13cyclictest10150irq/55-4a10000010:50:480
21743997525,34cyclictest10150irq/55-4a10000007:44:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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