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2023-12-04 - 04:34
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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 rackeslot3 (updated Mon Dec 04, 2023 00:43:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
157182699691,66cyclictest0-21swapper/100:12:581
1571826996543,14cyclictest1663865-21kworker/1:022:30:231
157182699630,62cyclictest0-21swapper/121:07:021
157182699630,2cyclictest0-21swapper/100:27:111
157182699630,1cyclictest0-21swapper/123:10:341
1571826996260,1cyclictest0-21swapper/100:09:311
1571826996259,2cyclictest0-21swapper/120:00:011
1571826996259,2cyclictest0-21swapper/120:00:001
157182699620,61cyclictest0-21swapper/100:15:321
1571826996158,2cyclictest0-21swapper/120:30:161
1571826996144,15cyclictest503182-1kworker/1:0H21:30:051
1571826996144,15cyclictest503182-1kworker/1:0H21:30:041
1571826995957,1cyclictest0-21swapper/119:45:191
1571826995955,2cyclictest0-21swapper/119:13:071
1571826995944,14cyclictest1632676-21kworker/1:121:50:071
1571826995944,14cyclictest1623381-21kworker/1:221:35:051
1571826995943,15cyclictest1613845-21kworker/1:221:17:071
1571826995943,14cyclictest503182-1kworker/1:0H23:02:221
1571826995943,14cyclictest503182-1kworker/1:0H23:02:221
1571826995855,2cyclictest0-21swapper/121:00:241
1571826995843,14cyclictest1761171-21kworker/1:000:30:271
1571826995843,14cyclictest1731662-21kworker/1:123:58:371
1571826995843,14cyclictest1731662-21kworker/1:123:50:011
1571826995843,14cyclictest1692841-21kworker/1:123:30:271
1571826995843,14cyclictest1692841-21kworker/1:123:20:321
1571826995843,14cyclictest1663865-21kworker/1:022:35:341
1571826995843,14cyclictest1604817-21kworker/1:121:10:031
1571826995843,14cyclictest1589258-21kworker/1:020:06:531
1571826995843,14cyclictest1576970-21kworker/1:219:40:221
1571826995843,14cyclictest1576970-21kworker/1:219:30:031
1571826995842,15cyclictest1692841-21kworker/1:123:05:251
1571826995842,15cyclictest1651169-21kworker/1:322:05:011
1571826995841,16cyclictest1640812-21kworker/1:222:00:171
1571820995849,6cyclictest3041382-1kworker/0:1H19:25:220
1571826995754,2cyclictest0-21swapper/123:27:121
1571826995742,14cyclictest1766531-21kworker/1:200:35:051
1571826995742,14cyclictest1692841-21kworker/1:123:15:281
1571826995742,14cyclictest1663865-21kworker/1:022:55:231
1571826995742,14cyclictest1584736-21kworker/1:319:50:281
1571826995742,14cyclictest1576970-21kworker/1:219:35:241
1571826995742,14cyclictest1572424-21kworker/1:019:16:381
1571826995741,15cyclictest1722174-21kworker/1:023:40:361
1571826995740,16cyclictest503182-1kworker/1:0H20:30:001
1571826995740,16cyclictest1604817-21kworker/1:121:25:171
1571826995738,18cyclictest1589258-21kworker/1:020:15:211
1571826995641,14cyclictest503182-1kworker/1:0H20:37:381
1571826995641,14cyclictest1748676-21kworker/1:200:20:001
1571826995641,14cyclictest1727566-21kworker/1:223:48:361
1571826995641,14cyclictest1632676-21kworker/1:121:40:221
1571826995640,15cyclictest1572424-21kworker/1:019:20:031
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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