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2026-07-19 - 15:25
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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
Characteristics of the 100 highest latencies:
System rackdslot0.osadl.org (updated Sun Jul 19, 2026 12:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17306992523,2cyclictest0-21swapper/109:32:521
1730599243,1cyclictest0-21swapper/011:26:330
17305992417,6cyclictest19863-21grep08:10:150
1730599235,14cyclictest0-21swapper/010:26:010
1730599232,15cyclictest25539-21cron12:10:010
17305992313,6cyclictest12438-21expr11:45:140
1730599230,21cyclictest8033-21pzem_current11:35:180
1730599230,1cyclictest0-21swapper/010:05:150
1730599222,1cyclictest0-21swapper/007:30:050
17305992216,5cyclictest0-21swapper/009:50:110
17305992214,7cyclictest25584-21expr10:15:120
1730599220,2cyclictest338-21grep09:30:140
1730599220,21cyclictest101702chrt07:52:440
1730599220,21cyclictest0-21swapper/012:30:140
1730599220,21cyclictest0-21swapper/012:15:130
1730599220,21cyclictest0-21swapper/010:20:170
1730599220,21cyclictest0-21swapper/010:20:170
1730599220,21cyclictest0-21swapper/008:05:140
1730599220,21cyclictest0-21swapper/007:55:170
1730599220,1cyclictest0-21swapper/007:25:200
1730599220,16cyclictest3991-21H222:10:210
1730599220,16cyclictest3991-21H222:10:210
1730599220,16cyclictest16454-21latency_hist10:00:000
1730599220,16cyclictest10279-21cat09:45:230
1730599220,16cyclictest0-21swapper/010:48:430
1730599220,15cyclictest0-21swapper/008:15:130
1730799214,16cyclictest3985-21H222:10:212
17306992112,9cyclictest0-21swapper/109:29:481
17305992115,5cyclictest4099-21H222:10:210
17305992115,5cyclictest198522sleep007:14:230
17305992113,7cyclictest23953-21grep09:15:130
17305992113,7cyclictest20317-21sed12:00:000
1730599211,19cyclictest91812chrt10:44:160
1730599210,2cyclictest5425-21grep11:30:210
1730599210,2cyclictest25682-21sort11:10:190
1730599210,20cyclictest3976-21H222:10:210
1730599210,20cyclictest0-21swapper/012:30:010
1730599210,20cyclictest0-21swapper/011:06:420
1730599210,20cyclictest0-21swapper/010:30:140
1730599210,20cyclictest0-21swapper/009:35:150
1730599210,20cyclictest0-21swapper/009:04:300
1730599210,20cyclictest0-21swapper/008:56:560
1730599210,20cyclictest0-21swapper/008:40:200
1730599210,20cyclictest0-21swapper/007:35:140
1730599210,1cyclictest0-21swapper/012:35:140
1730599210,1cyclictest0-21swapper/012:20:010
1730599210,1cyclictest0-21swapper/010:50:160
1730599210,1cyclictest0-21swapper/010:00:160
1730599210,1cyclictest0-21swapper/008:25:150
1730599210,1cyclictest0-21swapper/007:40:020
1730599210,19cyclictest3983-21H222:10:210
1730599210,19cyclictest3981-21H222:10:210
1730599210,16cyclictest3981-21H222:10:210
1730599210,15cyclictest0-21swapper/011:24:120
1730599210,15cyclictest0-21swapper/011:15:130
17307992017,2cyclictest21544-21nfsd407:15:202
17307992017,2cyclictest21544-21nfsd407:15:192
17307992017,2cyclictest19897-21tr08:10:152
1730799200,16cyclictest3989-21H222:10:212
1730699205,15cyclictest31850irq/133-nvme0q210:30:011
17306992017,2cyclictest3991-21H222:10:211
17306992016,3cyclictest3976-21H222:10:211
17305992014,5cyclictest23684-21master07:20:160
17305992014,5cyclictest0-21swapper/012:05:010
17305992014,5cyclictest0-21swapper/011:03:490
1730599200,1cyclictest0-21swapper/009:15:020
1730599200,19cyclictest0-21swapper/012:10:260
1730599200,19cyclictest0-21swapper/011:50:170
1730599200,19cyclictest0-21swapper/010:35:180
1730599200,19cyclictest0-21swapper/008:51:060
1730599200,19cyclictest0-21swapper/008:45:180
1730599200,19cyclictest0-21swapper/008:34:220
1730599200,19cyclictest0-21swapper/008:01:090
1730599200,15cyclictest0-21swapper/009:05:160
1730599200,0cyclictest0-21swapper/009:25:140
1730799192,16cyclictest11928-21smtpd08:55:052
1730799192,11cyclictest1576-21apt-key07:40:002
17307991917,1cyclictest28897-21missed_timers10:20:172
17307991917,1cyclictest28897-21missed_timers10:20:162
17307991917,1cyclictest28-21ksoftirqd/207:23:252
17307991917,1cyclictest0-21swapper/208:16:522
17307991916,2cyclictest32767-21grep09:30:152
17307991916,2cyclictest10422-21idleruntime10:45:162
17307991916,1cyclictest0-21swapper/211:41:062
17307991914,4cyclictest14817-21munin-plugin-st10:55:002
17307991911,7cyclictest870-21systemd-logind11:18:522
1730799190,18cyclictest870-21systemd-logind10:16:522
1730799190,18cyclictest426-21systemd-udevd11:08:522
1730799190,18cyclictest426-21systemd-udevd08:36:522
1730799190,16cyclictest3987-21H222:10:212
1730799190,16cyclictest3987-21H222:10:212
1730699192,1cyclictest0-21swapper/110:18:091
1730699192,1cyclictest0-21swapper/109:15:191
17306991917,1cyclictest21-21ksoftirqd/109:48:501
17306991917,1cyclictest21-21ksoftirqd/108:39:391
17306991917,1cyclictest21-21ksoftirqd/107:43:041
17306991916,2cyclictest31362-21cpuspeed_turbos07:35:131
1730699190,18cyclictest0-21swapper/112:25:351
17305991914,4cyclictest4035-21H222:10:210
1730599190,18cyclictest0-21swapper/011:40:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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