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2024-09-09 - 03:04
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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 100 highest latencies:
System rackfslot7.osadl.org (updated Sun Sep 08, 2024 12:46:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
160799679,19cyclictest0-21swapper/710:15:037
160799657,19cyclictest0-21swapper/709:01:377
160799656,19cyclictest0-21swapper/709:22:097
160199646,0cyclictest0-21swapper/108:44:511
160199645,58cyclictest0-21swapper/107:50:011
160199645,19cyclictest0-21swapper/108:53:151
160199635,0cyclictest0-21swapper/112:29:071
160199622,59cyclictest0-21swapper/108:01:231
1607996119,19cyclictest24904-21diskstats07:50:147
1601996123,19cyclictest64763-21meminfo09:00:171
1607995818,19cyclictest143415-21grep11:20:187
1607995816,19cyclictest1-21systemd07:30:127
1607995718,19cyclictest53810-21ntp_states08:40:197
1607995516,18cyclictest130455-21latency_hist11:00:017
1607995515,19cyclictest38578-21cpu08:15:127
1607995515,19cyclictest0-21swapper/710:40:137
1607995514,19cyclictest0-21swapper/710:10:027
1601995537,1cyclictest0-21swapper/111:32:321
1607995415,19cyclictest0-21swapper/709:40:207
1607995415,19cyclictest0-21swapper/709:40:197
1607995415,19cyclictest0-21swapper/708:50:157
1607995415,18cyclictest81276-21if_eno309:30:167
1607995414,19cyclictest3993-21chrt07:10:597
1607995414,19cyclictest0-21swapper/711:40:057
1607995414,19cyclictest0-21swapper/711:35:037
1607995414,19cyclictest0-21swapper/710:30:117
1607995414,19cyclictest0-21swapper/710:14:157
1601995415,0cyclictest0-21swapper/108:07:091
1601995414,19cyclictest0-21swapper/109:35:151
1601995414,19cyclictest0-21swapper/109:35:151
1607995333,19cyclictest171372-21missed_timers12:10:177
1607995315,18cyclictest0-21swapper/708:20:117
1607995314,19cyclictest0-21swapper/712:35:127
1607995314,19cyclictest0-21swapper/712:01:157
1607995314,19cyclictest0-21swapper/711:30:117
1607995314,19cyclictest0-21swapper/711:15:137
1607995314,19cyclictest0-21swapper/711:03:027
1607995314,19cyclictest0-21swapper/710:00:197
1607995314,19cyclictest0-21swapper/709:45:127
1607995314,19cyclictest0-21swapper/709:45:117
1607995314,19cyclictest0-21swapper/709:25:197
1607995314,19cyclictest0-21swapper/708:55:117
1607995314,19cyclictest0-21swapper/707:20:167
1607995314,18cyclictest0-21swapper/710:25:217
1607995314,18cyclictest0-21swapper/709:15:137
1607995314,18cyclictest0-21swapper/708:25:187
1607995314,18cyclictest0-21swapper/708:05:157
1607995313,20cyclictest68581-21taskset09:07:097
1607995313,19cyclictest0-21swapper/711:08:237
1607995313,19cyclictest0-21swapper/710:24:377
1607995313,19cyclictest0-21swapper/708:30:217
1607995313,19cyclictest0-21swapper/707:35:227
1607995312,19cyclictest0-21swapper/707:26:027
1601995314,18cyclictest0-21swapper/112:30:191
1601995313,39cyclictest0-21swapper/111:40:161
1601995313,19cyclictest0-21swapper/111:16:151
1601995313,0cyclictest0-21swapper/109:20:191
1601995312,19cyclictest0-21swapper/111:00:191
1607995213,19cyclictest0-21swapper/711:45:217
1607995213,19cyclictest0-21swapper/709:35:087
1607995213,19cyclictest0-21swapper/709:35:077
1607995213,19cyclictest0-21swapper/709:10:197
1607995213,19cyclictest0-21swapper/707:55:077
1607995213,18cyclictest0-21swapper/707:45:027
1607995212,19cyclictest0-21swapper/707:45:047
1602995214,38cyclictest0-21swapper/210:30:132
1601995213,18cyclictest0-21swapper/110:00:111
1601995212,39cyclictest0-21swapper/108:25:171
1607995113,19cyclictest0-21swapper/711:13:087
1607995112,19cyclictest0-21swapper/709:55:087
1607995112,19cyclictest0-21swapper/708:46:577
1602995113,19cyclictest0-21swapper/210:55:162
1601995113,0cyclictest0-21swapper/111:50:201
1601995112,19cyclictest0-21swapper/111:21:171
1601995112,0cyclictest0-21swapper/112:05:151
1601995111,19cyclictest0-21swapper/109:42:481
1601995111,19cyclictest0-21swapper/109:42:471
1601995111,19cyclictest0-21swapper/107:26:161
1607995011,19cyclictest0-21swapper/712:30:357
1601995011,19cyclictest0-21swapper/111:35:091
1601995011,0cyclictest0-21swapper/110:15:201
1601995011,0cyclictest0-21swapper/107:40:211
1601995010,19cyclictest0-21swapper/112:20:391
1601995010,19cyclictest0-21swapper/111:08:311
1601995010,19cyclictest0-21swapper/109:13:231
1607994910,19cyclictest0-21swapper/712:16:167
1607994910,19cyclictest0-21swapper/711:51:477
1607994910,19cyclictest0-21swapper/710:35:117
1607994910,19cyclictest0-21swapper/708:01:037
1602994930,19cyclictest0-21swapper/210:05:152
1602994910,19cyclictest0-21swapper/208:20:152
160199499,19cyclictest0-21swapper/108:12:391
160199499,19cyclictest0-21swapper/107:33:531
1601994910,18cyclictest0-21swapper/110:05:111
1601994910,0cyclictest0-21swapper/108:30:271
160799489,19cyclictest0-21swapper/712:29:207
160799489,19cyclictest0-21swapper/712:06:297
160799489,19cyclictest0-21swapper/711:25:037
160799489,19cyclictest0-21swapper/710:46:037
160799489,19cyclictest0-21swapper/709:50:077
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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