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2024-09-11 - 19:21
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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 rackcslot4.osadl.org (updated Wed Sep 11, 2024 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4574122263187,62sleep10-21swapper/107:09:421
4571022240197,29sleep00-21swapper/007:06:220
45756599603,39cyclictest633456-21apt-get12:10:091
45756599592,38cyclictest616671-21apt-get11:45:141
45756599590,3cyclictest647308-21cat12:30:171
45756599570,3cyclictest524160-21ssh09:33:411
45756599563,41cyclictest592306-21latency_hist11:10:011
457565995611,25cyclictest505757-21proc_pri09:06:161
45756599560,37cyclictest596411-21grep11:15:191
116899560,5rtkit-daemon1167-21rtkit-daemon11:40:101
5664392550,7sleep00-21swapper/010:32:590
45756599555,37cyclictest608819-21seq11:32:261
457565995510,33cyclictest582811-21netstat10:55:211
45756599550,3cyclictest459048-21chrt07:10:531
45756599550,2cyclictest552486-21chrt10:13:221
45756599549,34cyclictest476474-21seq07:54:481
45756599540,43cyclictest453223-21kworker/u8:107:15:391
45756599540,3cyclictest545783-21taskset10:04:211
45756599535,26cyclictest579695-21sed10:50:231
45756599531,44cyclictest571470-40apt-check10:40:211
45756599531,30cyclictest610300-21sh11:35:141
45756599530,8cyclictest514749-21cat09:20:181
457565995212,28cyclictest466790-21/usr/sbin/munin07:30:221
45756599520,3cyclictest478433-21chrt07:59:531
45756599520,33cyclictest638596-21sshd12:16:181
45756599520,2cyclictest506840-21apt-get09:10:121
45756599512,35cyclictest506577-21diskmemload12:02:011
45756599510,2cyclictest506577-21diskmemload11:56:381
45756599508,29cyclictest0-21swapper/111:00:191
45756599501,36cyclictest506577-21diskmemload10:34:301
45756599500,2cyclictest534897-21taskset09:48:551
45756599492,31cyclictest513318-21chrt09:18:281
45756599491,3cyclictest488260-21apt-get08:25:051
45756599491,34cyclictest506577-21diskmemload10:38:441
45756599490,5cyclictest497721-21grep08:45:251
45756599489,23cyclictest558540-21sh10:20:391
45756599487,25cyclictest4800492chrt08:01:041
45756599487,25cyclictest4701062chrt07:35:521
45756599483,33cyclictest0-21swapper/109:56:441
45756599483,33cyclictest0-21swapper/108:38:001
45756599481,38cyclictest490768-21apt-get08:30:141
45756599481,2cyclictest603767-21ntpq11:25:211
45756599480,9cyclictest621502-21taskset11:50:451
45756599480,8cyclictest466147-21chrt07:29:011
45756599480,4cyclictest599719-21apt-get11:20:131
45756599480,3cyclictest5954482sleep111:14:031
45756599480,3cyclictest506577-21diskmemload12:06:201
116899480,4rtkit-daemon1167-21rtkit-daemon07:19:050
45756599479,21cyclictest0-21swapper/112:35:181
45756599473,31cyclictest575480-21/usr/sbin/munin10:45:181
45756599471,3cyclictest4881752sleep108:24:131
45756599470,8cyclictest482124-21chrt08:07:241
45756599470,7cyclictest502014-21taskset08:57:091
45756599470,7cyclictest486216-21chrt08:19:201
45756599470,7cyclictest474263-21chrt07:47:031
45756599470,6cyclictest644852-21ssh12:25:291
45756599470,6cyclictest644852-21ssh12:25:291
45756599470,3cyclictest5044342sleep109:03:101
45756599464,27cyclictest5269382chrt09:36:371
45756599460,7cyclictest472376-21seq07:42:451
45756599460,5cyclictest536704-21swap09:50:231
45756599460,3cyclictest5621472chrt10:26:081
45756599460,2cyclictest556256-21ssh10:18:451
45756599460,2cyclictest548394-21ssh10:07:131
116899460,3rtkit-daemon1167-21rtkit-daemon08:22:080
45756599451,35cyclictest640166-21apt-get12:20:101
45756599451,2cyclictest530492-21ssh09:41:291
45756599450,8cyclictest520025-21ssh09:27:251
45756599450,3cyclictest482587-21apt-get08:10:131
45756599440,7cyclictest462993-21cat07:20:171
45756599440,6cyclictest499657-21sed08:50:231
45756599430,3cyclictest495010-21perl08:40:161
116899420,3rtkit-daemon0-21swapper/109:04:570
5982322400,2sleep00-21swapper/011:17:070
116899390,6rtkit-daemon645747-21sh12:27:540
116899390,6rtkit-daemon645747-21sh12:27:540
116899390,3rtkit-daemon0-21swapper/010:45:040
116899390,3rtkit-daemon0-21swapper/010:44:460
116899390,3rtkit-daemon0-21swapper/007:20:150
116899360,3rtkit-daemon0-21swapper/108:13:440
6003762350,1sleep0600380-21missed_timers11:20:210
116899340,3rtkit-daemon0-21swapper/111:53:340
116899340,3rtkit-daemon0-21swapper/108:57:290
116899340,3rtkit-daemon0-21swapper/108:47:280
116899330,3rtkit-daemon0-21swapper/109:36:510
116899320,3rtkit-daemon0-21swapper/111:49:360
116899320,3rtkit-daemon0-21swapper/111:08:150
116899310,3rtkit-daemon0-21swapper/112:34:580
116899310,3rtkit-daemon0-21swapper/112:10:550
116899310,3rtkit-daemon0-21swapper/111:25:170
116899310,3rtkit-daemon0-21swapper/108:42:570
116899310,3rtkit-daemon0-21swapper/108:38:400
116899310,3rtkit-daemon0-21swapper/107:50:470
457564993026,3cyclictest62550irq/132-enp2s008:02:440
116899300,3rtkit-daemon1167-21rtkit-daemon07:40:330
116899300,3rtkit-daemon0-21swapper/108:30:460
116899290,3rtkit-daemon0-21swapper/110:03:460
116899290,3rtkit-daemon0-21swapper/108:26:510
116899280,3rtkit-daemon1167-21rtkit-daemon12:20:470
116899280,3rtkit-daemon0-21swapper/111:56:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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