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2025-12-14 - 08:18
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Sun Dec 14, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
179815121640,2sleep30-21swapper/323:08:413
16423132300,1sleep00-21swapper/020:58:420
1510151992616,9cyclictest1517900-21kthreadcore19:15:030
151015199257,11cyclictest1833190-21sshd23:36:240
151015199255,13cyclictest1724504-21aten2.4-expect22:08:380
1510151992515,9cyclictest1842189-21kthreadcore23:43:430
1510153992421,1cyclictest0-21swapper/223:05:012
1510152992419,4cyclictest1-21systemd20:20:001
151015199242,2cyclictest1996-21runrttasks22:04:560
1510151992415,8cyclictest1907262-21gltestperf00:38:400
1510151992414,9cyclictest1791286-21cpuspeed_turbos23:03:370
1510151992411,12cyclictest0-21swapper/023:08:430
1510152992314,8cyclictest1842189-21kthreadcore23:43:431
151015199237,9cyclictest257-21systemd-journal19:40:390
151015199234,11cyclictest1809060-21taskset23:15:440
1510151992313,9cyclictest1882520-21cpuspeed_turbos00:18:380
151015199231,16cyclictest1668774-21date21:18:490
151015199227,8cyclictest0-21swapper/022:35:000
151015199221,5cyclictest257-21systemd-journal21:06:430
151015199221,5cyclictest1996-21runrttasks19:54:050
1510151992213,8cyclictest1711503-21unixbench_multi21:53:480
1510151992213,8cyclictest0-21swapper/022:55:020
1510151992212,9cyclictest1749823-21kthreadcore22:28:420
1510151992212,9cyclictest1749823-21kthreadcore22:28:420
1510151992212,8cyclictest1524512-21latency_hist19:20:020
1510151992211,9cyclictest1591510-21aten_repower_po20:18:370
151015199220,14cyclictest1863426-21cmp00:00:010
1510153992118,1cyclictest0-21swapper/221:40:002
1510152992116,4cyclictest1856809-21cat23:53:471
1510152992113,7cyclictest1516610-21kthreadcore19:15:021
1510152992110,3cyclictest1746179-21kthreadcore22:23:441
151015199211,6cyclictest1638625-21ls20:53:490
151015199211,5cyclictest1996-21runrttasks21:38:400
151015199211,5cyclictest1894430-21taskset00:27:370
151015199211,3cyclictest1864065-21taskset00:03:130
151015199211,3cyclictest1820690-21taskset23:24:300
1510151992111,9cyclictest1739181-21kthreadcore22:18:430
1510151992111,9cyclictest1660412-21kthreadcore21:13:420
1510151992111,9cyclictest1532281-21kthreadcore19:28:420
1510151992111,9cyclictest0-21swapper/000:15:020
151015199211,14cyclictest1581990-21cut20:08:430
151015199211,13cyclictest1900511-21/usr/sbin/munin00:33:380
151015199211,13cyclictest1700163-21/usr/sbin/munin21:48:390
151015199210,5cyclictest1693978-21taskset21:41:270
151015199210,5cyclictest1681605-21taskset21:31:090
151015199210,5cyclictest1627274-21taskset20:45:330
151015199210,5cyclictest1621300-21taskset20:40:560
151015199210,5cyclictest1536830-21taskset19:31:520
151015199210,5cyclictest1524736-21taskset19:20:500
151015199210,4cyclictest1803050-21sshd23:10:430
151015199210,4cyclictest1572670-21runrttasks19:59:010
151015199210,3cyclictest1996-21runrttasks22:59:020
151015199210,3cyclictest1760414-21taskset22:36:530
151015199210,3cyclictest1597168-21taskset20:20:320
151015199210,3cyclictest1573198-21taskset20:01:330
151015199210,13cyclictest1870169-21/usr/sbin/munin00:08:370
151015199210,13cyclictest1766566-21/usr/sbin/munin22:43:380
151015299209,3cyclictest1587436-21kthreadcore20:13:411
1510152992018,1cyclictest1578780-21cron20:05:001
1510152992013,6cyclictest1326-21systemd-logind21:07:431
1510152992012,7cyclictest1765479-21mailstats22:38:461
1510152992011,8cyclictest1883624-21kthreadcore00:18:421
1510152992011,8cyclictest1880732-21kthreadcore00:13:431
1510152992011,8cyclictest1794482-21kthreadcore23:03:431
1510152992011,8cyclictest1689919-21kthreadcore21:38:421
1510152992010,9cyclictest1824101-21kthreadcore23:28:441
1510152992010,9cyclictest1540340-21kthreadcore19:33:431
1510152992010,8cyclictest1900711-21cpu00:33:381
151015199201,5cyclictest1996-21runrttasks20:10:080
151015199201,5cyclictest1555050-21taskset19:45:300
151015199201,4cyclictest1857152-21runrttasks23:54:590
151015199201,3cyclictest1827213-21runrttasks23:31:470
151015199201,3cyclictest1730123-21seq22:10:310
151015199201,2cyclictest1675658-21taskset21:27:090
151015199201,2cyclictest1615155-21taskset20:35:030
1510151992010,9cyclictest1610752-21kthreadcore20:33:440
151015199200,5cyclictest1821089-21runrttasks23:25:380
151015199200,5cyclictest1712114-21taskset21:56:460
151015199200,4cyclictest257-21systemd-journal22:25:010
151015199200,4cyclictest1548639-21taskset19:39:330
151015199200,3cyclictest1888140-21taskset00:22:200
151015199200,3cyclictest1675108-21taskset21:24:040
151015199200,15cyclictest1847383-21cut23:48:420
151015299199,8cyclictest0-21swapper/100:30:011
151015299199,3cyclictest1828691-21kthreadcore23:33:411
151015299199,3cyclictest1737102-21gltestperf22:18:391
151015299199,2cyclictest1894192-21sh00:25:021
151015299199,2cyclictest1800390-21kthreadcore23:08:431
151015299199,2cyclictest1667593-21kthreadcore21:18:441
151015299198,3cyclictest1288-1atopacctd00:38:431
151015299197,3cyclictest134050irq/121-eno119:15:031
151015299192,5cyclictest1784087-21apt22:55:011
1510152991912,2cyclictest134050irq/121-eno122:10:021
1510152991910,8cyclictest1803354-21aten_repower_en23:13:371
1510152991910,8cyclictest1771442-21processes22:43:481
1510152991910,8cyclictest1672841-21kthreadcore21:23:431
1510152991910,8cyclictest1528907-21kthreadcore19:23:421
1510152991910,2cyclictest1730989-21fschecks_time22:13:381
1510152991910,2cyclictest1650769-21unixbench-2d21:03:481
1510152991910,2cyclictest1623282-21kthreadcore20:43:401
151015199198,4cyclictest134050irq/121-eno120:29:430
1510151991910,8cyclictest1775366-21kthreadcore22:48:410
151015199190,13cyclictest1645596-21/usr/sbin/munin21:03:410
1510153991815,1cyclictest0-21swapper/222:55:012
151015299189,3cyclictest1662685-21switchtime21:13:471
151015299189,2cyclictest1834560-21irqrtprio23:38:431
151015299189,2cyclictest1579706-21cpuspeed_turbos20:08:381
151015299188,3cyclictest1870914-21gltestperf00:08:401
151015299188,2cyclictest1638305-21pmu-power20:53:461
151015299188,2cyclictest1559243-21kthreadcore19:48:441
151015299185,6cyclictest1-21systemd23:50:021
151015299185,6cyclictest1-21systemd22:30:011
151015299185,6cyclictest1-21systemd22:30:011
151015299185,5cyclictest1773801-21cut22:48:401
151015299185,5cyclictest1684860-21cut21:33:411
1510153991714,1cyclictest0-21swapper/221:15:012
151015299179,2cyclictest1757441-21kthreadcore22:33:431
151015299179,2cyclictest1616604-21irqrtprio20:38:411
151015299179,2cyclictest1598384-21sed20:23:411
151015299178,3cyclictest1705154-21grep21:48:471
151015299178,2cyclictest1640571-21irqcore20:58:411
151015299177,3cyclictest1546283-21kthreadcore19:38:441
151015299174,5cyclictest1566569-21unixbench_singl19:53:491
2649091160,3phc2sys0-21swapper/323:39:563
1510153991613,1cyclictest0-21swapper/222:30:002
1510153991613,1cyclictest0-21swapper/222:30:002
1510153991613,1cyclictest0-21swapper/222:10:012
1510153991613,1cyclictest0-21swapper/220:00:012
1510153991613,1cyclictest0-21swapper/219:15:012
1510153991613,1cyclictest0-21swapper/200:00:022
151015299169,2cyclictest1857896-21tail23:58:371
151015299168,2cyclictest134050irq/121-eno123:18:461
151015299165,7cyclictest1723750-21awk22:05:011
151015299165,4cyclictest1815942-21sort23:23:381
151015299165,4cyclictest1329-21rs:main1
151015299164,5cyclictest1-21systemd23:00:011
2649091150,2phc2sys0-21swapper/319:43:443
1510153991513,1cyclictest0-21swapper/223:48:462
1510153991513,1cyclictest0-21swapper/220:58:442
1510153991513,1cyclictest0-21swapper/200:15:022
1510153991512,1cyclictest0-21swapper/223:20:002
1510153991512,1cyclictest0-21swapper/223:10:012
1510153991512,1cyclictest0-21swapper/220:28:382
1510153991512,1cyclictest0-21swapper/219:50:012
1510153991512,1cyclictest0-21swapper/219:38:442
1510153991512,1cyclictest0-21swapper/219:33:402
1510153991512,1cyclictest0-21swapper/219:18:382
1510153991510,3cyclictest1573976-21chrt20:03:382
151015299157,3cyclictest134050irq/121-eno119:43:381
151015299157,2cyclictest1694273-21aten_repower_po21:43:361
1510152991511,3cyclictest1568278-21irqcore19:58:411
151015199151,5cyclictest1-21systemd19:10:020
1510153991412,1cyclictest0-21swapper/223:45:012
1510153991412,1cyclictest0-21swapper/223:35:022
1510153991412,1cyclictest0-21swapper/220:53:382
1510153991412,1cyclictest0-21swapper/200:18:472
1510153991411,1cyclictest0-21swapper/223:38:442
1510153991411,1cyclictest0-21swapper/223:23:402
1510153991411,1cyclictest0-21swapper/222:38:442
1510153991411,1cyclictest0-21swapper/222:20:002
1510153991411,1cyclictest0-21swapper/222:13:352
1510153991411,1cyclictest0-21swapper/221:05:012
1510153991411,1cyclictest0-21swapper/220:33:502
1510153991411,1cyclictest0-21swapper/219:45:012
1510152991411,2cyclictest1706877-21gltestperf21:53:391
1510152991411,2cyclictest1628848-21sed20:48:451
1510152991410,3cyclictest1867646-21kthreadcore00:03:421
1510152991410,3cyclictest1714450-21kthreadcore21:58:401
1510152991410,3cyclictest1604766-21kthreadcore20:28:401
2649091130,1phc2sys0-21swapper/320:29:383
1510153991311,1cyclictest0-21swapper/223:13:452
1510153991311,1cyclictest0-21swapper/221:53:392
1510153991311,1cyclictest0-21swapper/221:28:382
1510153991311,1cyclictest0-21swapper/221:20:012
1510153991311,1cyclictest0-21swapper/220:48:442
1510153991311,1cyclictest0-21swapper/219:25:012
1510153991311,1cyclictest0-21swapper/200:38:382
1510153991311,1cyclictest0-21swapper/200:08:372
1510153991310,1cyclictest0-21swapper/223:53:402
1510153991310,1cyclictest0-21swapper/223:28:432
1510153991310,1cyclictest0-21swapper/222:56:182
1510153991310,1cyclictest0-21swapper/222:48:402
1510153991310,1cyclictest0-21swapper/221:48:382
1510153991310,1cyclictest0-21swapper/220:43:422
1510153991310,1cyclictest0-21swapper/220:13:452
1510153991310,1cyclictest0-21swapper/219:53:392
1510153991310,1cyclictest0-21swapper/219:28:362
1510153991310,1cyclictest0-21swapper/200:33:442
1510153991310,1cyclictest0-21swapper/200:28:432
1510152991310,2cyclictest0-21swapper/119:28:471
2649091120,2phc2sys0-21swapper/322:48:433
2649091120,2phc2sys0-21swapper/321:43:433
2649091120,2phc2sys0-21swapper/321:08:373
2649091120,1phc2sys0-21swapper/320:04:173
2649091120,1phc2sys0-21swapper/319:23:503
151015399129,1cyclictest0-21swapper/222:00:092
151015399129,1cyclictest0-21swapper/221:30:282
151015399129,1cyclictest0-21swapper/220:35:102
151015399129,1cyclictest0-21swapper/220:18:402
151015399129,1cyclictest0-21swapper/220:08:442
1510153991210,1cyclictest0-21swapper/222:25:012
1510153991210,1cyclictest0-21swapper/221:58:412
1510153991210,1cyclictest0-21swapper/221:23:442
1510153991210,1cyclictest0-21swapper/221:10:022
1510153991210,1cyclictest0-21swapper/220:23:432
151015299129,2cyclictest1676566-21idleruntime21:28:401
2649091112,2phc2sys0-21swapper/322:38:423
2649091110,2phc2sys0-21swapper/323:58:403
2649091110,1phc2sys0-21swapper/319:28:353
151015399119,1cyclictest0-21swapper/222:40:052
151015399119,1cyclictest0-21swapper/200:03:412
151015399110,8cyclictest1887973-21chrt00:20:132
2649091101,2phc2sys0-21swapper/323:25:023
2649091101,2phc2sys0-21swapper/322:20:013
2649091100,2phc2sys0-21swapper/321:48:273
2649091100,2phc2sys0-21swapper/320:30:133
2649091100,2phc2sys0-21swapper/319:33:363
2649091100,1phc2sys0-21swapper/323:42:453
2649091100,1phc2sys0-21swapper/323:27:223
2649091100,1phc2sys0-21swapper/323:02:183
2649091100,1phc2sys0-21swapper/322:59:533
2649091100,1phc2sys0-21swapper/322:28:513
2649091100,1phc2sys0-21swapper/322:28:513
2649091100,1phc2sys0-21swapper/322:01:303
2649091100,1phc2sys0-21swapper/321:03:003
2649091100,1phc2sys0-21swapper/320:54:183
2649091100,1phc2sys0-21swapper/320:49:253
2649091100,1phc2sys0-21swapper/319:16:533
151015399108,1cyclictest0-21swapper/222:32:552
151015399108,1cyclictest0-21swapper/221:40:422
151015299106,3cyclictest1510210-21true19:10:021
264909192,1phc2sys0-21swapper/323:18:413
264909191,3phc2sys0-21swapper/300:15:023
264909191,2phc2sys0-21swapper/319:53:433
264909191,1phc2sys0-21swapper/323:48:383
264909191,1phc2sys0-21swapper/323:13:443
264909191,1phc2sys0-21swapper/319:58:363
264909190,2phc2sys0-21swapper/323:34:433
264909190,2phc2sys0-21swapper/322:43:383
264909190,2phc2sys0-21swapper/321:58:333
264909190,2phc2sys0-21swapper/321:50:273
264909190,2phc2sys0-21swapper/321:33:373
264909190,2phc2sys0-21swapper/320:43:363
264909190,2phc2sys0-21swapper/320:38:353
264909190,2phc2sys0-21swapper/320:18:363
264909190,2phc2sys0-21swapper/319:39:563
264909190,1phc2sys0-21swapper/322:51:483
264909190,1phc2sys0-21swapper/321:23:433
264909190,1phc2sys0-21swapper/320:58:353
264909190,1phc2sys0-21swapper/320:23:373
264909190,1phc2sys0-21swapper/319:06:433
1870901290,4sleep30-21swapper/300:08:413
264909186,1phc2sys0-21swapper/322:31:343
264909182,1phc2sys0-21swapper/300:15:113
264909181,2phc2sys0-21swapper/321:12:133
264909181,2phc2sys0-21swapper/300:20:033
264909181,2phc2sys0-21swapper/300:03:363
264909181,1phc2sys0-21swapper/300:38:433
264909180,2phc2sys0-21swapper/322:23:173
264909180,2phc2sys0-21swapper/322:08:473
264909180,2phc2sys0-21swapper/321:38:463
264909180,2phc2sys0-21swapper/321:28:403
264909180,2phc2sys0-21swapper/321:15:023
264909180,2phc2sys0-21swapper/320:14:563
264909180,2phc2sys0-21swapper/320:08:423
264909180,2phc2sys0-21swapper/300:33:423
264909180,1phc2sys0-21swapper/323:53:353
264909180,1phc2sys0-21swapper/322:11:163
264909180,1phc2sys0-21swapper/319:46:183
264909180,1phc2sys0-21swapper/319:13:323
264909180,1phc2sys0-21swapper/300:26:003
15101539986,1cyclictest0-21swapper/219:10:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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