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2025-04-03 - 11:32
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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 792 highest latencies:
System rackdslot0.osadl.org (updated Thu Apr 03, 2025 00:46:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
401299220,18cyclictest0-21swapper/020:48:260
401499213,17cyclictest0-21swapper/200:10:102
401399210,19cyclictest4538-21H212:26:331
401299214,11cyclictest4525-21H212:26:330
401499200,3cyclictest31903-21perf23:15:012
401399204,15cyclictest21-21ksoftirqd/120:51:141
401399202,2cyclictest4528-21H212:26:331
401299200,17cyclictest0-21swapper/000:30:130
401499193,1cyclictest28-21ksoftirqd/220:35:582
401499193,15cyclictest0-21swapper/222:19:102
401499190,16cyclictest4593-21H212:26:332
401499190,16cyclictest4538-21H212:26:332
401499190,16cyclictest4534-21H212:26:332
4013991917,1cyclictest4886-21mii-tool21:05:181
401399190,16cyclictest4530-21H212:26:331
401399190,16cyclictest4530-21H212:26:331
401299193,15cyclictest21635-21missed_timers22:50:130
401299192,16cyclictest4534-21H212:26:330
4012991916,2cyclictest4536-21H212:26:330
401299190,16cyclictest4523-21H212:26:330
401499182,15cyclictest4538-21H212:26:332
401499182,15cyclictest16999-21latency23:50:132
4014991816,1cyclictest28-21ksoftirqd/223:58:582
4014991816,1cyclictest28-21ksoftirqd/222:12:582
4014991815,2cyclictest4581-21H212:26:332
4014991815,2cyclictest4526-21H212:26:332
4014991814,3cyclictest4528-21H212:26:332
401499180,3cyclictest1238-21snapd23:44:072
401499180,2cyclictest4536-21H212:26:332
401499180,2cyclictest4528-21H212:26:332
401499180,17cyclictest4534-21H212:26:332
401499180,17cyclictest0-21swapper/220:15:442
401499180,16cyclictest4534-21H212:26:332
401499180,16cyclictest0-21swapper/221:51:272
401499180,15cyclictest4536-21H212:26:332
401399182,15cyclictest21-21ksoftirqd/100:25:301
4013991816,1cyclictest0-21swapper/119:27:221
4013991816,1cyclictest0-21swapper/119:10:141
4013991815,2cyclictest4526-21H212:26:331
4013991814,3cyclictest4581-21H212:26:331
4013991814,3cyclictest4530-21H212:26:331
4013991814,3cyclictest1356-21lxd21:36:531
401399180,2cyclictest4534-21H212:26:331
401399180,2cyclictest4534-21H212:26:331
401399180,2cyclictest4532-21H212:26:331
401399180,1cyclictest0-21swapper/121:44:331
401399180,17cyclictest4593-21H212:26:331
401399180,17cyclictest21-21ksoftirqd/120:08:471
401399180,15cyclictest4523-21H212:26:331
4012991816,1cyclictest9-21ksoftirqd/020:15:090
4012991816,1cyclictest9-21ksoftirqd/019:27:470
4012991816,1cyclictest0-21swapper/022:12:430
4012991816,1cyclictest0-21swapper/022:08:240
4012991816,1cyclictest0-21swapper/019:58:270
4012991815,2cyclictest8757-21nfsd422:20:210
4012991815,2cyclictest27007-21grep00:10:140
4012991815,2cyclictest19695-21kernelversion23:55:170
4012991815,2cyclictest16851-21plymouth19:30:240
4012991814,3cyclictest4526-21H212:26:330
401299181,16cyclictest4530-21H212:26:330
401299181,16cyclictest4530-21H212:26:330
401299180,2cyclictest4593-21H212:26:330
401299180,2cyclictest4528-21H212:26:330
401299180,2cyclictest4526-21H212:26:330
401299180,2cyclictest4523-21H212:26:330
401299180,17cyclictest823-21systemd-network21:07:420
401299180,17cyclictest4532-21H212:26:330
401299180,16cyclictest4534-21H212:26:330
401299180,16cyclictest4530-21H212:26:330
401299180,16cyclictest1555-21lxd21:18:520
401299180,15cyclictest4528-21H212:26:330
4014991715,1cyclictest235822chrt19:45:042
4014991715,1cyclictest179652sleep219:35:032
4014991715,1cyclictest0-21swapper/222:48:472
4014991715,1cyclictest0-21swapper/222:30:152
4014991715,1cyclictest0-21swapper/221:45:142
4014991715,1cyclictest0-21swapper/221:45:142
4014991714,2cyclictest544-21netstat20:00:172
4014991714,2cyclictest4534-21H212:26:332
4014991714,2cyclictest27881-21expr19:50:252
4014991714,2cyclictest18584-21apache_accesses21:35:122
4014991714,2cyclictest17682-21ntpq20:30:222
4014991714,2cyclictest14892-21cut20:25:202
4014991714,2cyclictest14892-21cut20:25:202
4014991714,2cyclictest0-21swapper/222:25:012
4014991713,2cyclictest4532-21H212:26:332
4014991712,4cyclictest13616-21missed_timers19:25:182
401499171,15cyclictest8573-21switchtime21:10:252
401499171,15cyclictest0-21swapper/221:19:012
401499170,2cyclictest6724-21grep23:30:112
401499170,2cyclictest4581-21H212:26:332
401499170,2cyclictest4581-21H212:26:332
401499170,2cyclictest4536-21H212:26:332
401499170,2cyclictest4536-21H212:26:332
401499170,2cyclictest23056-21pzem_power00:00:222
401499170,1cyclictest0-21swapper/223:25:002
401499170,1cyclictest0-21swapper/219:30:392
401499170,16cyclictest9675-21expr23:35:142
401499170,16cyclictest4593-21H212:26:332
401499170,16cyclictest4534-21H212:26:332
401499170,16cyclictest4534-21H212:26:332
401499170,16cyclictest4532-21H212:26:332
401499170,16cyclictest4530-21H212:26:332
401499170,16cyclictest4528-21H212:26:332
401499170,16cyclictest31300-21tr00:20:132
401499170,16cyclictest2335-21tr20:05:162
401499170,16cyclictest23209-21/usr/sbin/munin22:55:142
401499170,16cyclictest21472-21latency22:50:122
401499170,16cyclictest16344-21sort22:39:002
401499170,16cyclictest0-21swapper/223:48:262
401499170,16cyclictest0-21swapper/200:35:182
401499170,15cyclictest0-21swapper/219:20:212
4013991715,1cyclictest31749-21/usr/sbin/munin20:00:111
4013991715,1cyclictest0-21swapper/121:20:231
4013991714,2cyclictest4593-21H212:26:331
4013991714,2cyclictest4538-21H212:26:331
4013991714,2cyclictest4534-21H212:26:331
4013991714,2cyclictest4530-21H212:26:331
4013991714,2cyclictest4526-21H212:26:331
4013991714,2cyclictest29817-21grep00:15:201
4013991714,2cyclictest23209-21/usr/sbin/munin22:55:131
4013991714,2cyclictest1411-21lxd20:28:531
4013991714,2cyclictest1411-21lxd20:28:521
4013991713,3cyclictest4593-21H212:26:331
401399170,2cyclictest9836-21expr23:35:141
401399170,2cyclictest4538-21H212:26:331
401399170,2cyclictest4536-21H212:26:331
401399170,2cyclictest4536-21H212:26:331
401399170,2cyclictest4534-21H212:26:331
401399170,2cyclictest4534-21H212:26:331
401399170,2cyclictest4526-21H212:26:331
401399170,2cyclictest4526-21H212:26:331
401399170,2cyclictest26680-21pzem_power20:45:231
401399170,1cyclictest0-21swapper/120:37:411
401399170,1cyclictest0-21swapper/119:34:521
401399170,16cyclictest7710-21sessionclean00:39:011
401399170,16cyclictest5823-21postgres23:25:401
401399170,16cyclictest4581-21H212:26:331
401399170,16cyclictest4534-21H212:26:331
401399170,16cyclictest4532-21H212:26:331
401399170,16cyclictest4530-21H212:26:331
401399170,16cyclictest4523-21H212:26:331
401399170,16cyclictest23831-21perf00:05:001
401399170,16cyclictest21157-21fschecks_time22:50:101
401399170,16cyclictest16384-21snapd00:33:431
401399170,16cyclictest0-21swapper/123:16:421
401399170,15cyclictest4523-21H212:26:331
401299172,14cyclictest0-21swapper/021:35:160
4012991715,1cyclictest9-21ksoftirqd/023:32:020
4012991714,2cyclictest4538-21H212:26:330
4012991714,2cyclictest4523-21H212:26:330
4012991714,2cyclictest27512-21grep23:00:230
4012991714,2cyclictest24607-21sessionclean00:08:580
4012991714,2cyclictest15643-21dump-pmu-power23:50:000
4012991714,2cyclictest0-21swapper/020:11:550
4012991713,3cyclictest4538-21H212:26:330
401299170,2cyclictest30045-21cat23:10:100
401299170,2cyclictest29585-21cut00:15:180
401299170,2cyclictest13326-21idleruntime23:40:170
401299170,2cyclictest12626-21nfsd422:30:150
401299170,16cyclictest8323-21nfsd419:15:200
401299170,16cyclictest5242-21expr22:15:150
401299170,16cyclictest454-21plymouthd21:50:100
401299170,16cyclictest4536-21H212:26:330
401299170,16cyclictest4536-21H212:26:330
401299170,16cyclictest4536-21H212:26:330
401299170,16cyclictest4534-21H212:26:330
401299170,16cyclictest4534-21H212:26:330
401299170,16cyclictest4530-21H212:26:330
401299170,16cyclictest27927-21cat21:55:130
401299170,16cyclictest22132-21awk19:40:190
401299170,16cyclictest1895-21systemd-udevd21:21:080
401299170,16cyclictest16689-21expr20:30:180
401299170,16cyclictest16580-21smartctl21:30:140
401299170,16cyclictest16207-21cut23:50:080
401299170,16cyclictest0-21swapper/020:55:180
401299170,16cyclictest0-21swapper/020:20:410
401299170,16cyclictest0-21swapper/019:46:510
4014991614,1cyclictest0-21swapper/223:15:122
4014991614,1cyclictest0-21swapper/222:00:192
401499161,1cyclictest28-21ksoftirqd/219:40:132
401499160,1cyclictest4528-21H212:26:332
401499160,15cyclictest3965-21/usr/sbin/munin21:05:122
4013991615,1cyclictest21-21ksoftirqd/100:09:281
4013991614,1cyclictest6803-21ntpq20:10:221
4013991614,1cyclictest0-21swapper/123:40:151
4013991614,1cyclictest0-21swapper/121:00:151
4013991613,2cyclictest4156-21postgres22:13:101
4013991612,3cyclictest0-21swapper/119:40:141
401399160,1cyclictest0-21swapper/123:55:181
401399160,15cyclictest6905-21chrt21:10:001
401399160,15cyclictest0-21swapper/120:21:591
4012991614,1cyclictest4538-21H212:26:330
4012991613,2cyclictest4530-21H212:26:330
401299160,15cyclictest4523-21H212:26:330
401299160,15cyclictest26847-21expr19:50:170
401299160,15cyclictest23470-21expr22:55:120
401299160,15cyclictest0-21swapper/021:45:380
401299160,15cyclictest0-21swapper/021:45:370
401299160,15cyclictest0-21swapper/021:10:180
4013991513,1cyclictest0-21swapper/123:50:081
401399150,1cyclictest0-21swapper/119:45:151
401399150,14cyclictest0-21swapper/121:25:321
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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