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2026-05-11 - 01:41
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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 rackeslot2.osadl.org (updated Sun May 10, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
193989121930,2sleep30-21swapper/309:10:203
18013152300,1sleep10-21swapper/107:20:211
1782505992616,9cyclictest1993779-21kthreadcore09:45:210
1782505992418,5cyclictest1789196-21kthreadcore07:15:020
1782505992417,5cyclictest2080784-21latency_hist10:45:020
1782505992410,9cyclictest0-21swapper/009:30:260
178250799238,6cyclictest0-21swapper/210:30:012
1782507992321,1cyclictest0-21swapper/212:20:582
178250599239,9cyclictest0-21swapper/010:15:140
1782505992318,4cyclictest1923533-21latency_hist09:00:000
1782505992316,6cyclictest1873034-21systemd08:20:010
1782505992316,5cyclictest0-21swapper/008:35:010
1782505992316,5cyclictest0-21swapper/008:05:010
1782505992315,4cyclictest134050irq/121-eno107:35:170
178250599231,18cyclictest0-21swapper/011:16:130
178250599231,14cyclictest2149462-21sh11:30:010
1782505992310,9cyclictest0-21swapper/010:25:010
1782505992310,12cyclictest0-21swapper/010:35:220
1782507992215,3cyclictest0-21swapper/209:15:132
1782505992215,5cyclictest0-21swapper/008:45:010
1782505992215,5cyclictest0-21swapper/008:45:010
1782505992214,6cyclictest0-21swapper/012:25:010
1782505992213,8cyclictest2210242-21latency_hist12:10:010
1782505992211,10cyclictest0-21swapper/012:10:190
178250599220,2cyclictest2253644-21python312:35:250
178250599220,2cyclictest2134503-21ssh11:20:030
1782506992118,2cyclictest1892163-21systemd-run08:35:021
1782506992118,2cyclictest1296-21polkitd11:25:021
1782506992116,3cyclictest1992804-21kthreadcore09:45:211
178250599213,17cyclictest0-21swapper/008:45:230
1782505992115,5cyclictest2114711-21kthreadcore11:05:220
1782505992115,5cyclictest2109845-21unixbench_singl11:00:270
1782505992115,5cyclictest1975012-21cstates09:35:160
1782505992114,6cyclictest1883275-21kthreadcore08:25:230
1782505992113,7cyclictest0-21swapper/009:20:010
1782505992113,4cyclictest383433398rtkit-daemon09:02:080
178250599211,2cyclictest2095225-21ssh10:52:520
1782505992112,5cyclictest2001961-21kthreadcore09:50:210
1782505992111,9cyclictest1810378-21aten2.4-expect07:30:150
1782505992111,5cyclictest171ktimers/012:16:000
1782505992110,7cyclictest1854530-21tail08:05:150
1782505992110,5cyclictest171ktimers/011:14:590
1782505992110,5cyclictest171ktimers/009:20:160
178250799205,12cyclictest18666892sleep208:15:022
1782507992017,1cyclictest0-21swapper/212:35:252
1782507992015,2cyclictest0-21swapper/211:20:032
178250799200,12cyclictest0-21swapper/209:30:012
1782506992018,1cyclictest2255732-21latency_hist12:40:011
1782506992017,2cyclictest3824565-21in:imuxsock07:20:011
1782506992017,2cyclictest2050164-21idleruntime-cro10:25:001
1782506992017,2cyclictest2027381-21systemd10:10:011
178250599209,8cyclictest2024454-21kthreadcore10:05:230
178250599209,7cyclictest2151103-21kthreadcore11:30:210
178250599209,4cyclictest134050irq/121-eno111:35:180
178250599205,9cyclictest1997275-21kworker/u16:2+nfsiod09:55:110
178250599205,11cyclictest2242300-21kthreadcore12:30:210
178250599203,12cyclictest2165089-21aten2.4-expect11:40:150
178250599203,12cyclictest171ktimers/012:01:060
1782505992014,5cyclictest0-21swapper/009:15:010
1782505992014,4cyclictest0-21swapper/010:15:010
1782505992011,8cyclictest1822907-21aten2.4-expect07:40:140
178250599200,6cyclictest2187524-21munin-run11:55:010
178250599200,6cyclictest2187524-21munin-run11:55:010
178250599200,14cyclictest2059476-21kthreadcore10:30:210
2649091190,2phc2sys0-21swapper/310:20:243
178250799192,11cyclictest0-21swapper/208:20:012
1782507991913,3cyclictest0-21swapper/209:55:162
1782507991913,2cyclictest0-21swapper/211:00:132
1782506991916,2cyclictest2119135-21wc11:10:011
1782506991916,2cyclictest2010607-21grep09:55:291
178250599199,9cyclictest1782503-21cyclictest11:50:010
178250599195,9cyclictest2096751-21aten2.4-expect10:55:170
178250599195,9cyclictest171ktimers/009:26:320
178250599193,13cyclictest1842814-21sed07:55:200
178250599192,9cyclictest1873091-21kworker/u16:1+nfsiod10:29:550
178250599192,11cyclictest2239502-21diskmemload12:27:130
1782505991914,4cyclictest1936118-21systemd-run09:10:010
1782505991914,4cyclictest0-21swapper/007:20:000
1782505991913,5cyclictest1912281-21grep08:50:180
1782505991912,6cyclictest1862015-21kthreadcore08:10:210
1782505991911,4cyclictest1936075-21diskmemload09:40:330
1782505991910,5cyclictest1835585-21cpuspeed_turbos07:50:190
1782505991910,4cyclictest134050irq/121-eno111:55:210
178250599190,5cyclictest491rcuog/210:00:430
178250599190,17cyclictest1809898-21basename07:30:000
2649091181,4phc2sys0-21swapper/307:25:143
2649091181,2phc2sys0-21swapper/312:14:363
1782507991814,2cyclictest0-21swapper/210:40:002
1782507991813,3cyclictest2195886-21chrt12:00:142
1782506991815,2cyclictest3851704-21mta-sts-daemon07:50:211
1782506991815,2cyclictest2165706-21sed11:40:181
1782506991815,2cyclictest0-21swapper/111:35:011
1782506991815,2cyclictest0-21swapper/110:55:011
1782506991815,2cyclictest0-21swapper/110:30:271
1782506991813,3cyclictest2020037-21latency_hist10:05:021
1782506991812,4cyclictest1956992-21ssh09:20:261
1782506991811,2cyclictest134050irq/121-eno110:47:251
178250599184,9cyclictest2012248-21kworker/u16:0+nfsiod10:46:470
1782505991812,5cyclictest1892913-21gltestperf08:35:190
1782505991812,5cyclictest1830337-21kthreadcore07:45:220
1782505991812,5cyclictest1797802-21aten_repower_en07:20:140
2649091170,2phc2sys0-21swapper/312:02:533
178250799176,4cyclictest0-21swapper/212:20:012
1782507991714,1cyclictest0-21swapper/212:25:162
1782507991714,1cyclictest0-21swapper/211:15:222
1782507991714,1cyclictest0-21swapper/210:55:162
1782507991713,2cyclictest0-21swapper/211:05:142
1782507991713,1cyclictest0-21swapper/211:50:142
1782507991713,1cyclictest0-21swapper/211:50:142
1782507991711,3cyclictest1880175-21chrt08:25:202
1782506991714,2cyclictest3851705-21mta-sts-daemon12:04:571
1782506991714,2cyclictest2193343-21unixbench_multi11:55:281
1782506991714,2cyclictest2103914-21latency_hist11:00:001
1782506991714,2cyclictest2073873-21tr10:40:161
1782506991714,2cyclictest2073241-21systemd-run10:40:011
1782506991714,2cyclictest2004622-21munin-plugin-st09:55:011
1782506991714,2cyclictest1980976-21gdbus09:37:311
1782506991714,2cyclictest1968139-21ps09:30:191
1782506991714,2cyclictest1959742-21cpuspeed_turbos09:25:161
1782506991713,3cyclictest3851704-21mta-sts-daemon09:14:451
1782506991713,2cyclictest134050irq/121-eno111:40:021
1782506991711,4cyclictest0-21swapper/110:20:021
178250599174,9cyclictest1878233-21pmu-power08:20:250
2649091161,4phc2sys0-21swapper/309:30:143
2649091160,2phc2sys0-21swapper/312:30:383
2649091160,1phc2sys0-21swapper/311:43:373
2649091160,1phc2sys0-21swapper/311:08:023
1782507991614,1cyclictest0-21swapper/211:15:002
1782507991614,1cyclictest0-21swapper/208:00:022
1782507991613,1cyclictest0-21swapper/212:30:232
1782507991613,1cyclictest0-21swapper/211:36:442
1782507991613,1cyclictest0-21swapper/210:45:432
1782507991613,1cyclictest0-21swapper/210:40:152
1782507991613,1cyclictest0-21swapper/209:40:132
1782507991613,1cyclictest0-21swapper/208:58:102
1782507991613,1cyclictest0-21swapper/208:31:232
1782507991613,1cyclictest0-21swapper/207:48:252
1782507991612,2cyclictest0-21swapper/208:45:142
1782507991611,2cyclictest0-21swapper/210:00:432
1782507991611,2cyclictest0-21swapper/209:10:202
178250699164,4cyclictest1816635-21aten2.4-expect07:35:171
1782506991613,2cyclictest3851703-21mta-sts-daemon08:24:351
1782506991613,2cyclictest2220540-21cut12:15:211
1782506991613,2cyclictest2057997-21systemd-run10:30:011
1782506991613,2cyclictest2033004-21mailstats10:10:261
1782506991613,2cyclictest1923681-21cut09:00:011
1782506991613,2cyclictest1860455-21systemd-run08:10:021
1782506991613,2cyclictest1296-21polkitd08:20:001
1782506991613,2cyclictest1290-21dbus-daemon08:05:011
1782506991612,3cyclictest1933622-21kthreadcore09:05:221
1782506991612,2cyclictest3851704-21mta-sts-daemon09:19:071
1782506991611,3cyclictest2180500-21cstates11:50:161
1782506991611,3cyclictest2180500-21cstates11:50:161
1782506991611,3cyclictest2145095-21kthreadcore11:25:221
1782506991611,3cyclictest0-21swapper/112:08:281
1782506991611,2cyclictest3851705-21mta-sts-daemon11:49:101
1782506991610,5cyclictest2233933-21gltestperf12:25:171
178250599160,9cyclictest1782559-21munin-run07:10:000
2649091151,6phc2sys0-21swapper/311:35:143
2649091151,4phc2sys0-21swapper/307:45:143
2649091150,2phc2sys0-21swapper/310:06:083
2649091150,1phc2sys0-21swapper/310:40:523
2649091150,13phc2sys0-21swapper/310:45:303
178250799156,4cyclictest0-21swapper/212:05:212
178250799152,7cyclictest0-21swapper/212:00:012
1782507991513,1cyclictest0-21swapper/210:30:142
1782507991512,1cyclictest0-21swapper/211:40:392
1782507991512,1cyclictest0-21swapper/211:30:162
1782507991512,1cyclictest0-21swapper/210:52:552
1782507991512,1cyclictest0-21swapper/210:20:442
1782507991512,1cyclictest0-21swapper/210:15:142
1782507991512,1cyclictest0-21swapper/210:11:002
1782507991512,1cyclictest0-21swapper/209:45:132
1782507991512,1cyclictest0-21swapper/209:35:142
1782507991512,1cyclictest0-21swapper/209:30:192
1782507991512,1cyclictest0-21swapper/209:00:152
1782507991512,1cyclictest0-21swapper/207:40:002
1782507991512,1cyclictest0-21swapper/207:34:022
1782507991512,1cyclictest0-21swapper/207:20:312
178250799151,12cyclictest0-21swapper/209:21:172
1782507991511,2cyclictest0-21swapper/207:29:492
1782507991511,1cyclictest0-21swapper/208:40:212
1782507991511,1cyclictest0-21swapper/208:40:212
1782507991510,1cyclictest0-21swapper/208:35:152
1782507991510,1cyclictest0-21swapper/208:00:132
178250799150,7cyclictest0-21swapper/211:25:152
178250699159,5cyclictest1982248-21/usr/sbin/munin09:40:271
1782506991512,2cyclictest3851702-21mta-sts-daemon07:30:261
1782506991512,2cyclictest3824565-21in:imuxsock12:24:301
1782506991512,2cyclictest2211204-21sed12:10:151
1782506991512,2cyclictest2124486-21awk11:10:251
1782506991512,2cyclictest2111392-21latency_hist11:05:021
1782506991512,2cyclictest1895138-21sort08:35:221
1782506991512,2cyclictest1884719-21switchtime08:25:271
1782506991512,2cyclictest1789178-21irqcore07:15:011
1782506991512,2cyclictest0-21swapper/111:20:011
1782506991512,2cyclictest0-21swapper/107:30:011
1782506991511,3cyclictest2243750-21kthreadcore12:30:231
1782506991511,3cyclictest1907422-21kthreadcore08:45:221
2649091141,2phc2sys0-21swapper/311:02:213
2649091140,1phc2sys0-21swapper/311:52:163
2649091140,1phc2sys0-21swapper/311:52:153
19970492149,2sleep30-21swapper/309:50:013
178250799143,5cyclictest0-21swapper/207:10:012
1782507991412,1cyclictest0-21swapper/212:10:232
1782507991412,1cyclictest0-21swapper/210:06:242
1782507991412,1cyclictest0-21swapper/209:53:452
1782507991412,1cyclictest0-21swapper/208:54:212
1782507991412,1cyclictest0-21swapper/207:15:002
1782507991411,2cyclictest0-21swapper/209:05:142
1782507991411,1cyclictest0-21swapper/211:45:212
1782507991411,1cyclictest0-21swapper/208:20:182
1782507991411,1cyclictest0-21swapper/208:05:142
1782507991411,1cyclictest0-21swapper/207:50:212
178250699149,3cyclictest1822871-21tail07:40:141
1782506991412,1cyclictest0-21swapper/108:45:011
1782506991412,1cyclictest0-21swapper/108:45:011
1782506991411,2cyclictest1912632-21kthreadcore08:50:191
1782506991411,2cyclictest1782573-21systemd07:10:011
1782506991410,3cyclictest1928832-21head09:00:251
1782506991410,3cyclictest1830442-21kthreadcore07:45:201
2649091131,3phc2sys0-21swapper/312:00:003
2649091130,4phc2sys0-21swapper/307:40:133
2649091130,2phc2sys0-21swapper/312:26:553
2649091130,2phc2sys0-21swapper/311:30:573
2649091130,2phc2sys0-21swapper/311:24:293
2649091130,2phc2sys0-21swapper/310:59:443
2649091130,2phc2sys0-21swapper/310:51:323
2649091130,2phc2sys0-21swapper/310:14:383
2649091130,2phc2sys0-21swapper/309:43:413
2649091130,2phc2sys0-21swapper/307:13:283
2649091130,1phc2sys0-21swapper/310:01:163
178250799139,2cyclictest0-21swapper/207:44:392
1782507991311,1cyclictest0-21swapper/207:20:012
1782506991310,2cyclictest3851703-21mta-sts-daemon08:10:161
1782506991310,2cyclictest1847618-21systemd-run08:00:011
2649091121,2phc2sys0-21swapper/309:55:193
2649091121,2phc2sys0-21swapper/308:05:013
2649091120,2phc2sys0-21swapper/310:27:583
2649091120,2phc2sys0-21swapper/309:27:263
2649091120,2phc2sys0-21swapper/308:25:433
2649091120,2phc2sys0-21swapper/307:59:283
2649091120,1phc2sys0-21swapper/309:52:153
2649091112,2phc2sys0-21swapper/307:05:223
2649091111,2phc2sys0-21swapper/311:48:023
2649091111,2phc2sys0-21swapper/310:34:393
2649091111,2phc2sys0-21swapper/307:40:013
2649091110,5phc2sys0-21swapper/309:20:143
2649091110,2phc2sys0-21swapper/308:15:153
2649091110,2phc2sys0-21swapper/308:11:333
2649091110,2phc2sys0-21swapper/307:31:313
2649091110,1phc2sys0-21swapper/308:41:133
2649091110,1phc2sys0-21swapper/308:41:123
2649091110,1phc2sys0-21swapper/308:37:003
2649091110,1phc2sys0-21swapper/308:32:103
2649091110,1phc2sys0-21swapper/307:20:063
2649091101,2phc2sys0-21swapper/311:10:223
2649091101,2phc2sys0-21swapper/310:16:363
2649091101,2phc2sys0-21swapper/309:35:033
2649091100,2phc2sys0-21swapper/312:15:283
2649091100,2phc2sys0-21swapper/312:05:143
2649091100,2phc2sys0-21swapper/311:26:183
2649091100,2phc2sys0-21swapper/311:16:243
2649091100,2phc2sys0-21swapper/310:35:153
2649091100,2phc2sys0-21swapper/309:16:383
2649091100,2phc2sys0-21swapper/309:05:003
2649091100,2phc2sys0-21swapper/308:56:273
2649091100,2phc2sys0-21swapper/308:45:173
264909191,2phc2sys0-21swapper/308:53:423
264909190,2phc2sys0-21swapper/312:35:533
264909190,2phc2sys0-21swapper/312:20:133
264909190,2phc2sys0-21swapper/308:05:253
264909190,2phc2sys0-21swapper/307:50:183
264909190,2phc2sys0-21swapper/307:15:163
264909190,1phc2sys0-21swapper/309:05:563
264909190,1phc2sys0-21swapper/308:21:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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