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2025-09-18 - 05:57
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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 highest latencies:
System rackeslot2.osadl.org (updated Thu Sep 18, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
100191121050,1sleep01001904-21ssh21:44:320
797974993330,1cyclictest0-21swapper/223:45:012
11712832320,2sleep1341rcuc/123:24:331
12523572310,1sleep10-21swapper/100:10:021
797973992825,2cyclictest1305458-21grep00:40:011
797972992821,6cyclictest1129327-21munin-run23:00:010
797973992717,2cyclictest176650irq/121-eno121:15:001
797973992515,2cyclictest176650irq/121-eno123:29:271
797974992422,1cyclictest0-21swapper/200:20:032
79797299244,18cyclictest0-21swapper/022:54:260
797973992310,4cyclictest1112022-21systemctl22:50:021
79797299235,8cyclictest1286490-21tr00:29:350
797972992320,2cyclictest1006110-21cron21:50:000
797972992320,2cyclictest1006110-21cron21:50:000
797972992315,2cyclictest491rcuog/222:09:320
797972992313,6cyclictest1268677-21kthreadcore00:19:340
797973992219,2cyclictest1703-21in:imuxsock19:46:011
797972992219,2cyclictest1023707-21perf22:00:000
797973992118,2cyclictest909575-21systemd20:40:011
797972992113,4cyclictest953122-21expr21:19:260
79797399201,12cyclictest854800-21latency_hist19:55:011
79797299209,7cyclictest1224097-21kthreadcore23:54:330
797972992017,2cyclictest866933-21munin-run20:05:010
797972992016,3cyclictest0-21swapper/000:00:010
797972992014,5cyclictest1238356-21gltestperf00:04:310
797972992014,2cyclictest176650irq/121-eno100:24:250
9787122190,1sleep10-21swapper/121:34:031
797972991916,2cyclictest0-21swapper/019:15:010
797972991913,2cyclictest176650irq/121-eno100:34:260
797972991913,2cyclictest176650irq/121-eno100:12:580
797972991913,2cyclictest176650irq/121-eno100:09:360
797972991912,6cyclictest983607-21kthreadcore21:34:350
2555591191,2phc2sys0-21swapper/319:55:003
2555591190,2phc2sys0-21swapper/323:51:063
2555591190,2phc2sys0-21swapper/300:26:323
797974991816,1cyclictest0-21swapper/223:50:012
797974991815,1cyclictest0-21swapper/223:59:552
797974991815,1cyclictest0-21swapper/221:10:022
797973991815,2cyclictest891376-21cron20:25:001
797973991815,2cyclictest1096902-21/usr/sbin/munin22:44:261
797973991814,3cyclictest929868-21kthreadcore20:59:311
797973991814,3cyclictest826682-21kthreadcore19:34:311
797973991814,3cyclictest1230198-21kthreadcore23:59:281
79797299185,8cyclictest1131383-21sh23:02:540
79797299185,4cyclictest176650irq/121-eno123:19:260
79797299183,8cyclictest1102350-21grep22:44:370
797972991815,2cyclictest260-21systemd-journal20:20:000
797972991815,2cyclictest260-21systemd-journal20:20:000
797972991815,2cyclictest1205892-21kthreadcore23:44:330
797972991812,2cyclictest940658-21diskmemload22:33:320
797972991812,2cyclictest176650irq/121-eno123:14:240
797972991812,2cyclictest176650irq/121-eno100:39:330
797972991811,2cyclictest176650irq/121-eno121:39:320
797972991811,2cyclictest1142187-21cut23:09:320
797972991810,7cyclictest0-21swapper/022:05:010
79797299180,6cyclictest1212471-21cut23:49:310
2555591180,2phc2sys0-21swapper/321:56:113
9313042170,2sleep00-21swapper/020:59:320
797974991715,1cyclictest0-21swapper/222:44:252
797974991714,1cyclictest0-21swapper/222:09:322
797974991714,1cyclictest0-21swapper/221:30:012
797974991714,1cyclictest0-21swapper/221:20:002
797974991714,1cyclictest0-21swapper/200:29:302
797973991714,2cyclictest842890-21sh19:45:011
797973991714,2cyclictest797970-21cyclictest00:20:581
797973991714,2cyclictest3437895-1atop22:30:001
797973991714,2cyclictest1715-21systemd-logind21:50:021
797973991714,2cyclictest1715-21systemd-logind21:50:021
797973991714,2cyclictest1633-21dbus-daemon22:15:011
797973991714,2cyclictest1290973-21aten_repower_fr00:34:251
797973991714,2cyclictest1260356-21mailstats00:14:411
797973991714,2cyclictest1221439-21sed23:54:321
797973991713,3cyclictest893833-21kthreadcore20:29:301
797973991713,3cyclictest876642-21kthreadcore20:14:321
797973991713,3cyclictest861708-21cpu20:04:271
797973991713,3cyclictest1014202-21mailstats21:54:321
79797299179,2cyclictest0-21swapper/021:24:320
79797299172,9cyclictest825039-21aten2.4-expect19:34:240
797972991714,2cyclictest949713-21latency_hist21:15:010
797972991714,2cyclictest915866-21munin-run20:45:010
797972991713,3cyclictest917217-21gltestperf20:49:320
797972991713,3cyclictest1194052-21cpuspeed_turbos23:39:270
797972991711,5cyclictest940658-21diskmemload23:23:020
797972991711,5cyclictest940658-21diskmemload21:50:530
797972991711,2cyclictest940658-21diskmemload21:29:390
797972991710,2cyclictest171ktimers/022:45:560
2555591170,2phc2sys0-21swapper/322:13:333
2555591170,2phc2sys0-21swapper/321:19:523
2555591170,2phc2sys0-21swapper/320:05:013
2555591170,1phc2sys0-21swapper/322:58:233
797974991614,1cyclictest0-21swapper/221:15:002
797974991613,1cyclictest0-21swapper/223:09:342
797974991613,1cyclictest0-21swapper/222:24:302
797974991613,1cyclictest0-21swapper/220:20:002
797974991613,1cyclictest0-21swapper/220:20:002
797974991613,1cyclictest0-21swapper/200:12:372
797974991613,1cyclictest0-21swapper/200:09:362
797973991613,2cyclictest998371-21kthreadcore21:44:291
797973991613,2cyclictest1715-21systemd-logind22:35:011
797973991613,2cyclictest1239608-21kthreadcore00:04:341
797973991613,2cyclictest1216349-21mailstats23:49:361
797973991613,2cyclictest1150652-21gltestperf23:14:271
797973991613,2cyclictest1129464-21systemd-run23:00:011
797973991611,3cyclictest1264338-21aten_repower_vo00:19:271
797973991610,4cyclictest0-21swapper/122:20:021
79797299169,6cyclictest260-21systemd-journal23:31:470
797972991613,2cyclictest903761-21latency_hist20:35:020
797972991613,2cyclictest879189-21unixbench_singl20:14:380
797972991613,2cyclictest856102-21fschecks_time19:59:260
797972991613,2cyclictest854821-21apt19:55:000
797972991613,2cyclictest831746-21gltestperf19:39:280
797972991613,2cyclictest815680-21kthreadcore19:24:290
797972991613,2cyclictest0-21swapper/020:40:010
797972991612,2cyclictest0-21swapper/022:40:010
797972991610,2cyclictest940658-21diskmemload22:25:310
797898160,2rtkit-daemon0-21swapper/122:51:251
2555591160,3phc2sys0-21swapper/321:37:073
2555591160,2phc2sys0-21swapper/323:47:323
2555591160,2phc2sys0-21swapper/322:36:463
2555591160,2phc2sys0-21swapper/319:15:033
2555591160,2phc2sys0-21swapper/300:18:383
79797499159,2cyclictest0-21swapper/223:19:332
797974991513,1cyclictest0-21swapper/223:04:332
797974991513,1cyclictest0-21swapper/221:35:012
797974991513,1cyclictest0-21swapper/219:30:012
797974991512,1cyclictest0-21swapper/223:55:002
797974991512,1cyclictest0-21swapper/223:39:372
797974991512,1cyclictest0-21swapper/222:59:342
797974991512,1cyclictest0-21swapper/222:26:152
797974991512,1cyclictest0-21swapper/221:44:262
797974991512,1cyclictest0-21swapper/219:40:002
797974991512,1cyclictest0-21swapper/200:40:002
797974991512,1cyclictest0-21swapper/200:30:572
797973991513,1cyclictest7977-21rtkit-daemon19:24:021
797973991512,2cyclictest910515-21head20:44:241
797973991512,2cyclictest885017-21timerandwakeup20:19:371
797973991512,2cyclictest885017-21timerandwakeup20:19:371
797973991512,2cyclictest836399-21sendmail19:40:001
797973991512,2cyclictest7977-21rtkit-daemon21:26:031
797973991512,2cyclictest2004-21runrttasks23:03:161
797973991512,2cyclictest1286842-21latency00:29:361
797973991512,2cyclictest0-21swapper/121:24:311
797973991511,3cyclictest811726-21processes19:19:351
797973991511,3cyclictest1646-1atopacctd21:39:391
797973991511,3cyclictest1089596-21kthreadcore22:39:331
797973991511,3cyclictest1036821-21irqrtprio22:09:311
797973991511,2cyclictest176650irq/121-eno123:09:331
79797299157,4cyclictest843569-21aten2.4-expect19:49:270
79797299153,7cyclictest1175446-21diskmemload23:28:130
79797299153,6cyclictest935388-21aten2.4-expect21:09:220
797972991512,2cyclictest891638-21cut20:25:020
797972991512,2cyclictest1610-21gmain19:20:010
797972991512,2cyclictest1053174-21aten_repower_en22:19:280
797972991512,2cyclictest1049730-21unixbench_singl22:14:380
2555591150,2phc2sys0-21swapper/323:33:073
2555591150,2phc2sys0-21swapper/322:33:043
2555591150,2phc2sys0-21swapper/321:46:143
2555591150,2phc2sys0-21swapper/321:46:143
2555591150,1phc2sys0-21swapper/321:24:343
10493632150,2sleep20-21swapper/222:14:362
79797499149,3cyclictest0-21swapper/222:38:452
797974991412,1cyclictest0-21swapper/219:54:292
797974991412,1cyclictest0-21swapper/219:34:282
797974991412,1cyclictest0-21swapper/200:25:012
797974991412,1cyclictest0-21swapper/200:00:312
797974991411,1cyclictest0-21swapper/223:24:312
797974991411,1cyclictest0-21swapper/221:20:252
797974991411,1cyclictest0-21swapper/221:05:012
797974991411,1cyclictest0-21swapper/220:50:022
797974991411,1cyclictest0-21swapper/220:34:322
797974991411,1cyclictest0-21swapper/220:09:562
797974991411,1cyclictest0-21swapper/220:05:012
797974991411,1cyclictest0-21swapper/219:50:002
797974991410,2cyclictest0-21swapper/221:54:292
797973991412,1cyclictest860846-21cron20:00:001
797973991411,2cyclictest898965-21irqcore20:34:301
797973991411,2cyclictest800500-21kthreadcore19:14:331
797973991411,2cyclictest1703-21in:imuxsock23:31:471
797973991411,2cyclictest1158832-21aten_repower_po23:19:261
797973991411,2cyclictest1061822-21/usr/sbin/munin22:24:291
797973991411,2cyclictest1027928-21irqrtprio22:04:321
797973991411,2cyclictest1017844-21acpi21:59:231
797973991410,3cyclictest602881-21kworker/u16:1+nfsiod21:15:091
797973991410,3cyclictest1197793-21kthreadcore23:39:331
797973991410,2cyclictest927555-21switchtime20:54:361
797973991410,2cyclictest0-21swapper/123:45:011
79797299145,2cyclictest842770-21apt-config19:45:010
797972991411,2cyclictest940658-21diskmemload22:23:190
797972991411,2cyclictest892309-21cpuspeed_turbos20:29:250
797972991411,2cyclictest871662-21kthreadcore20:09:320
797972991411,2cyclictest0-21swapper/019:30:000
2555591140,2phc2sys0-21swapper/323:04:073
79797499139,2cyclictest0-21swapper/222:34:332
797974991311,1cyclictest0-21swapper/222:49:282
797974991311,1cyclictest0-21swapper/220:54:272
797974991311,1cyclictest0-21swapper/219:15:012
797974991310,1cyclictest0-21swapper/223:34:262
797974991310,1cyclictest0-21swapper/223:29:252
797974991310,1cyclictest0-21swapper/223:14:282
797974991310,1cyclictest0-21swapper/222:55:012
797974991310,1cyclictest0-21swapper/222:02:082
797974991310,1cyclictest0-21swapper/221:58:242
797974991310,1cyclictest0-21swapper/220:44:282
79797399139,3cyclictest871123-21kthreadcore20:09:321
79797399139,3cyclictest820233-21kernelversion19:29:321
797973991310,2cyclictest936479-21irqrtprio21:09:271
797973991310,2cyclictest919301-21kthreadcore20:49:351
79797299136,5cyclictest922538-21cut20:54:240
79797299131,3cyclictest934621-21cron21:05:000
2555591137,2phc2sys0-21swapper/300:04:353
2555591131,3phc2sys0-21swapper/320:54:243
2555591130,5phc2sys0-21swapper/323:08:003
2555591130,2phc2sys0-21swapper/323:37:033
2555591130,2phc2sys0-21swapper/322:52:463
2555591130,2phc2sys0-21swapper/319:05:433
2555591130,2phc2sys0-21swapper/300:24:363
2555591130,2phc2sys0-21swapper/300:05:323
2555591130,1phc2sys0-21swapper/319:25:433
79797499129,1cyclictest0-21swapper/221:48:252
79797499129,1cyclictest0-21swapper/221:48:252
79797499129,1cyclictest0-21swapper/220:59:162
79797499129,1cyclictest0-21swapper/220:23:262
797974991210,1cyclictest0-21swapper/221:39:562
797974991210,1cyclictest0-21swapper/220:13:262
797974991210,1cyclictest0-21swapper/219:44:312
797974991210,1cyclictest0-21swapper/219:25:012
797974991210,1cyclictest0-21swapper/219:19:322
79797399129,2cyclictest707938-21kworker/u16:0-events_power_efficient19:10:021
79797399125,5cyclictest260-21systemd-journal21:01:271
2555591124,2phc2sys0-21swapper/321:44:293
2555591122,2phc2sys0-21swapper/323:19:243
2555591120,3phc2sys0-21swapper/319:49:393
2555591120,2phc2sys0-21swapper/322:05:013
2555591120,2phc2sys0-21swapper/321:29:113
2555591120,2phc2sys0-21swapper/321:09:223
2555591120,2phc2sys0-21swapper/320:14:363
2555591120,2phc2sys0-21swapper/319:33:403
2555591120,1phc2sys0-21swapper/319:56:563
79797499119,1cyclictest0-21swapper/220:35:432
79797499119,1cyclictest0-21swapper/220:25:292
79797499119,1cyclictest0-21swapper/219:59:302
79797499110,1cyclictest0-21swapper/222:18:352
79797299118,2cyclictest798030-21systemd-run19:10:010
2555591114,2phc2sys0-21swapper/300:33:493
2555591113,2phc2sys0-21swapper/322:44:243
2555591112,2phc2sys0-21swapper/322:45:283
2555591110,2phc2sys0-21swapper/321:50:063
2555591110,2phc2sys0-21swapper/320:24:263
2555591110,2phc2sys0-21swapper/320:19:363
2555591110,2phc2sys0-21swapper/320:19:363
2555591110,1phc2sys0-21swapper/320:57:523
2555591110,1phc2sys0-21swapper/320:40:533
79797499108,1cyclictest0-21swapper/219:10:022
2555591101,2phc2sys0-21swapper/323:42:203
2555591101,2phc2sys0-21swapper/322:21:323
2555591101,2phc2sys0-21swapper/322:06:573
2555591101,2phc2sys0-21swapper/320:39:333
2555591101,2phc2sys0-21swapper/320:34:283
2555591100,3phc2sys0-21swapper/321:14:373
2555591100,3phc2sys0-21swapper/320:25:433
2555591100,3phc2sys0-21swapper/300:39:113
2555591100,2phc2sys0-21swapper/323:28:213
2555591100,2phc2sys0-21swapper/323:23:043
2555591100,2phc2sys0-21swapper/322:27:013
2555591100,2phc2sys0-21swapper/322:17:393
2555591100,2phc2sys0-21swapper/319:24:393
2555591100,2phc2sys0-21swapper/300:13:223
255559191,2phc2sys0-21swapper/323:56:513
255559191,1phc2sys0-21swapper/320:46:183
255559190,6phc2sys836788-21chrt19:40:523
255559190,3phc2sys0-21swapper/321:05:013
255559190,2phc2sys0-21swapper/323:10:103
255559190,2phc2sys0-21swapper/321:30:063
255559190,2phc2sys0-21swapper/320:09:353
255559190,2phc2sys0-21swapper/319:15:013
255559180,2phc2sys0-21swapper/319:35:043
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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