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2026-03-11 - 03:58
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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 Wed Mar 11, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
227966121050,2sleep30-21swapper/300:05:013
206323921000,1sleep00-21swapper/022:01:450
20069302970,2sleep20-21swapper/221:31:052
20069302970,2sleep20-21swapper/221:31:052
19694572790,1sleep11969456-21/usr/sbin/munin21:06:481
23081632380,1sleep20-21swapper/200:21:432
23306482290,2sleep20-21swapper/200:32:092
1822411992616,8cyclictest2112011-21munin-run22:30:010
1822413992218,2cyclictest0-21swapper/100:40:011
1822411992216,4cyclictest1867036-21munin-run19:45:020
1822411992214,6cyclictest0-21swapper/021:55:010
1822413992118,2cyclictest2111878-21grep22:30:001
1822413992016,2cyclictest1327-21in:imuxsock20:45:011
1822411992017,2cyclictest1909174-21sh20:20:000
1822411992014,5cyclictest2076818-21latency_hist22:10:000
1822411992014,4cyclictest2339235-21unixbench_singl00:36:540
1822411992013,6cyclictest2144554-21/usr/sbin/munin22:46:480
1822411992013,5cyclictest2264533-21kthreadcore23:56:460
1822411992010,6cyclictest1889418-21kthreadcore20:01:470
2649091190,2phc2sys0-21swapper/323:44:183
2649091190,2phc2sys0-21swapper/300:23:183
1822417991916,1cyclictest0-21swapper/221:50:002
1822417991916,1cyclictest0-21swapper/219:26:422
1822413991916,2cyclictest2120589-21perf22:35:001
1822413991916,2cyclictest1903242-21cut20:15:011
1822413991912,3cyclictest2249181-21kthreadcore23:46:461
1822411991912,6cyclictest2231683-21kthreadcore23:36:470
1822411991912,6cyclictest2231683-21kthreadcore23:36:470
1822411991910,4cyclictest0-21swapper/021:21:440
2649091180,4phc2sys0-21swapper/319:41:433
2649091180,2phc2sys0-21swapper/323:59:493
2649091180,2phc2sys0-21swapper/323:28:353
2649091180,2phc2sys0-21swapper/322:54:483
2649091180,2phc2sys0-21swapper/322:04:073
1822417991815,1cyclictest0-21swapper/222:50:012
1822417991815,1cyclictest0-21swapper/221:36:532
1822417991815,1cyclictest0-21swapper/220:20:012
182241399188,5cyclictest0-21swapper/100:16:481
1822413991815,2cyclictest2182534-21cron23:10:021
1822413991815,2cyclictest2083066-21mailstats22:11:491
1822413991815,2cyclictest1976851-21systemctl21:11:501
1822413991814,2cyclictest1286-21avahi-daemon20:00:011
1822411991815,2cyclictest2085482-21latency_hist22:15:000
1822411991815,2cyclictest1326-21systemd-logind23:25:010
1822411991814,2cyclictest1286-21avahi-daemon22:00:020
1822411991812,5cyclictest2257677-21kthreadcore23:51:450
1822411991812,5cyclictest1985582-21ptp4l21:16:500
182241199180,11cyclictest0-21swapper/023:11:380
2902298170,2rtkit-daemon0-21swapper/100:26:211
2649091170,2phc2sys0-21swapper/322:21:223
2649091170,1phc2sys0-21swapper/323:46:183
1822417991715,1cyclictest0-21swapper/223:15:012
1822417991714,1cyclictest0-21swapper/223:21:462
1822417991714,1cyclictest0-21swapper/222:06:462
1822417991714,1cyclictest0-21swapper/221:55:012
1822417991714,1cyclictest0-21swapper/220:35:012
1822417991714,1cyclictest0-21swapper/200:38:002
1822413991714,2cyclictest2014674-21cron21:35:001
1822413991714,2cyclictest2014674-21cron21:35:001
1822413991714,2cyclictest1994657-21timerandwakeup21:21:501
1822413991714,2cyclictest1891029-21systemd-run20:05:001
1822413991714,2cyclictest1854737-21cron19:35:001
1822413991714,2cyclictest1822402-21cyclictest23:41:421
1822413991714,2cyclictest1288-1atopacctd00:30:151
1822413991714,2cyclictest1288-1atopacctd00:12:041
1822413991714,2cyclictest0-21swapper/100:10:011
1822413991712,4cyclictest1822402-21cyclictest21:38:071
182241399171,14cyclictest1426-21gdbus21:20:001
182241199179,4cyclictest2294429-21wc00:11:470
182241199179,4cyclictest0-21swapper/000:35:000
182241199177,5cyclictest0-21swapper/022:45:010
1822411991715,1cyclictest2211391-21grep23:26:440
1822411991714,2cyclictest2306086-21perf00:20:000
1822411991714,2cyclictest1946117-21apt-key20:50:000
1822411991714,2cyclictest1327-21in:imuxsock20:00:000
1822411991714,2cyclictest1288-1atopacctd22:37:080
1822411991710,6cyclictest1866874-21kworker/u16:1+nfsiod23:02:540
2649091160,2phc2sys0-21swapper/323:39:253
2649091160,2phc2sys0-21swapper/323:39:253
2649091160,2phc2sys0-21swapper/323:24:073
2649091160,2phc2sys0-21swapper/321:35:213
2649091160,2phc2sys0-21swapper/300:26:303
2649091160,1phc2sys0-21swapper/300:12:553
182241799161,9cyclictest0-21swapper/200:01:392
1822417991614,1cyclictest0-21swapper/221:45:012
1822417991614,1cyclictest0-21swapper/221:30:022
1822417991614,1cyclictest0-21swapper/221:11:452
1822417991614,1cyclictest0-21swapper/219:41:472
1822417991614,1cyclictest0-21swapper/200:20:012
1822417991613,1cyclictest0-21swapper/223:45:002
1822417991613,1cyclictest0-21swapper/223:36:472
1822417991613,1cyclictest0-21swapper/223:36:472
1822417991613,1cyclictest0-21swapper/223:05:012
1822417991613,1cyclictest0-21swapper/222:29:562
1822417991613,1cyclictest0-21swapper/220:26:482
1822417991613,1cyclictest0-21swapper/220:05:002
182241399168,4cyclictest1970324-21diskmemload23:16:321
182241399167,4cyclictest0-21swapper/100:05:021
182241399165,4cyclictest1866874-21kworker/u16:1+rpciod22:36:281
182241399161,5cyclictest4114978-21snmpd19:36:401
1822413991613,2cyclictest2263235-21head23:56:401
1822413991613,2cyclictest2255887-21kthreadcore23:51:441
1822413991613,2cyclictest2103372-21systemd-run22:25:021
1822413991613,2cyclictest1927150-21runrttasks20:31:511
1822413991613,2cyclictest1822402-21cyclictest21:56:451
1822413991613,2cyclictest0-21swapper/122:55:001
1822413991613,2cyclictest0-21swapper/121:50:001
1822413991613,2cyclictest0-21swapper/120:50:001
1822413991612,3cyclictest1866874-21kworker/u16:1+nfsiod22:59:261
182241199168,4cyclictest0-21swapper/023:06:520
182241199168,2cyclictest0-21swapper/000:23:560
182241199167,5cyclictest0-21swapper/023:41:390
182241199166,5cyclictest0-21swapper/021:26:440
182241199165,6cyclictest0-21swapper/021:31:380
182241199165,6cyclictest0-21swapper/021:31:380
182241199165,6cyclictest0-21swapper/000:01:390
1822411991614,1cyclictest2023607-21grep21:40:000
1822411991614,1cyclictest1822402-21cyclictest23:31:410
182241199161,3cyclictest0-21swapper/020:56:380
1822411991613,2cyclictest2153394-21processes22:51:510
1822411991613,2cyclictest2034417-21gltestperf21:46:410
1822411991613,2cyclictest1327-21in:imuxsock00:30:010
1822411991613,2cyclictest1290-21dbus-daemon22:35:010
1822411991613,2cyclictest1288-1atopacctd22:57:170
1822411991611,1cyclictest20943771systemd-run22:20:000
182241199160,2cyclictest0-21swapper/021:42:430
2649091150,1phc2sys0-21swapper/322:11:303
2649091150,1phc2sys0-21swapper/320:14:093
19334612150,1sleep0491rcuog/220:36:530
1822417991513,1cyclictest0-21swapper/222:11:452
1822417991513,1cyclictest0-21swapper/220:41:452
1822417991512,1cyclictest0-21swapper/223:51:462
1822417991512,1cyclictest0-21swapper/222:56:482
1822417991512,1cyclictest0-21swapper/222:41:512
1822417991512,1cyclictest0-21swapper/222:40:012
1822417991512,1cyclictest0-21swapper/221:21:412
1822417991512,1cyclictest0-21swapper/221:17:222
1822417991512,1cyclictest0-21swapper/220:56:472
1822417991512,1cyclictest0-21swapper/219:51:412
1822417991512,1cyclictest0-21swapper/219:36:512
1822417991512,1cyclictest0-21swapper/219:25:002
1822417991512,1cyclictest0-21swapper/200:06:462
1822417991512,1cyclictest0-21swapper/200:00:012
1822417991511,2cyclictest0-21swapper/223:31:402
1822417991511,2cyclictest0-21swapper/222:31:502
1822417991511,2cyclictest0-21swapper/221:01:412
182241399159,4cyclictest1290-21dbus-daemon20:25:011
182241399156,2cyclictest1828606-21munin-node23:03:071
182241399154,5cyclictest2069220-21aten2.4-expect22:06:381
1822413991513,1cyclictest29021-21rtkit-daemon20:53:021
1822413991512,2cyclictest2311182-21kthreadcore00:21:471
1822413991512,2cyclictest2219191-21head23:31:381
1822413991512,2cyclictest1876929-21kthreadcore19:51:461
1822413991512,2cyclictest1840006-21kthreadcore19:21:471
1822413991512,2cyclictest1823077-21cpuspeed_turbos19:11:411
1822413991512,2cyclictest1822402-21cyclictest21:26:451
1822413991512,2cyclictest0-21swapper/122:50:021
1822413991511,3cyclictest2191519-21kworker/u16:2+nfsiod23:36:021
1822413991511,3cyclictest2191519-21kworker/u16:2+nfsiod23:36:021
1822413991511,3cyclictest2175734-21fschecks_time23:06:431
1822413991511,3cyclictest2006197-21kworker/u16:3+nfsiod22:16:221
1822413991511,3cyclictest1955361-21kthreadcore20:56:471
1822413991511,3cyclictest1774575-21kworker/u16:0+nfsiod23:20:501
1822413991511,3cyclictest1774575-21kworker/u16:0+nfsiod22:01:041
1822413991511,2cyclictest0-21swapper/120:30:021
1822413991510,1cyclictest134050irq/121-eno123:29:541
182241199157,4cyclictest2100789-21switchtime22:21:520
182241199153,6cyclictest1972848-21sed21:11:440
1822411991512,2cyclictest1915440-21munin-plugin-st20:25:000
1822411991510,4cyclictest1842835-21systemd-run19:25:010
2649091143,2phc2sys0-21swapper/323:01:383
2649091141,5phc2sys0-21swapper/320:51:393
2649091141,2phc2sys0-21swapper/322:39:373
2649091141,2phc2sys0-21swapper/321:55:253
2649091141,2phc2sys0-21swapper/321:43:553
2649091140,3phc2sys0-21swapper/322:34:273
2649091140,2phc2sys0-21swapper/321:45:053
2649091140,2phc2sys0-21swapper/321:10:263
182241799141,7cyclictest0-21swapper/223:50:012
1822417991412,1cyclictest0-21swapper/222:51:482
1822417991412,1cyclictest0-21swapper/219:15:012
1822417991411,1cyclictest0-21swapper/222:21:462
1822417991411,1cyclictest0-21swapper/222:17:142
1822417991411,1cyclictest0-21swapper/221:56:442
1822417991410,2cyclictest0-21swapper/223:16:452
1822417991410,2cyclictest0-21swapper/223:06:452
1822417991410,2cyclictest0-21swapper/220:46:462
1822417991410,2cyclictest0-21swapper/200:25:292
182241399148,2cyclictest134050irq/121-eno122:41:451
182241399142,5cyclictest134050irq/121-eno121:50:551
1822413991411,2cyclictest1908479-21mailstats20:16:511
1822413991411,2cyclictest1871011-21kthreadcore19:46:461
1822413991411,2cyclictest0-21swapper/121:41:421
1822413991410,2cyclictest1933994-21latency_hist20:40:021
1822413991410,2cyclictest0-21swapper/119:41:411
182241199148,1cyclictest0-21swapper/023:46:370
182241199147,3cyclictest0-21swapper/019:51:390
182241199145,5cyclictest0-21swapper/019:47:440
182241199145,4cyclictest0-21swapper/023:16:460
1822411991412,2cyclictest171ktimers/019:27:360
1822411991412,1cyclictest2280868-21/usr/sbin/munin00:06:480
1822411991411,2cyclictest1967499-21kthreadcore21:06:460
1822411991411,2cyclictest1855454-21cpuspeed_turbos19:36:410
1822411991411,2cyclictest1849765-21fschecks_time19:31:410
1822411991411,2cyclictest1828943-21cut19:15:020
1822411991411,2cyclictest1828943-21cut19:15:020
1822411991411,2cyclictest1827858-21threads19:11:520
1822411991411,2cyclictest1327-21in:imuxsock20:34:440
1822411991411,2cyclictest1313-21gmain20:55:000
2649091133,2phc2sys0-21swapper/321:27:433
2649091130,4phc2sys0-21swapper/300:38:303
2649091130,2phc2sys0-21swapper/322:47:433
2649091130,2phc2sys0-21swapper/300:06:313
1822417991311,1cyclictest0-21swapper/220:36:472
1822417991311,1cyclictest0-21swapper/220:00:012
1822417991310,2cyclictest0-21swapper/221:06:452
1822417991310,2cyclictest0-21swapper/219:16:452
1822417991310,2cyclictest0-21swapper/219:16:452
1822417991310,1cyclictest0-21swapper/222:01:442
1822417991310,1cyclictest0-21swapper/220:25:002
1822417991310,1cyclictest0-21swapper/219:46:382
1822417991310,1cyclictest0-21swapper/219:31:442
1822417991310,1cyclictest0-21swapper/200:11:442
182241799130,6cyclictest0-21swapper/220:10:012
182241399138,1cyclictest134050irq/121-eno121:01:381
1822413991310,2cyclictest1891509-21aten_repower_fr20:06:401
1822413991310,2cyclictest1846563-21kthreadcore19:26:461
182241199139,2cyclictest1296-21polkitd21:05:010
182241199134,5cyclictest0-21swapper/020:25:350
182241199131,7cyclictest1822426-21munin-run19:10:010
1822411991311,1cyclictest1899598-21kthreadcore20:11:460
1822411991310,2cyclictest1935746-21kthreadcore20:41:460
1822411991310,2cyclictest1894187-21kthreadcore20:06:470
2649091122,2phc2sys0-21swapper/322:59:333
2649091121,5phc2sys0-21swapper/322:06:383
2649091121,5phc2sys0-21swapper/319:16:383
2649091121,5phc2sys0-21swapper/319:16:383
2649091121,3phc2sys0-21swapper/323:30:473
2649091121,1phc2sys0-21swapper/320:36:253
2649091121,1phc2sys0-21swapper/319:51:133
2649091120,3phc2sys0-21swapper/323:06:393
2649091120,2phc2sys0-21swapper/319:08:293
2649091120,1phc2sys0-21swapper/322:29:313
2649091120,1phc2sys0-21swapper/321:05:353
182241799128,2cyclictest0-21swapper/220:11:452
1822417991210,1cyclictest0-21swapper/223:26:462
1822417991210,1cyclictest0-21swapper/220:51:462
182241399129,2cyclictest1830190-21kthreadcore19:15:031
182241399129,2cyclictest1830190-21kthreadcore19:15:031
182241399124,6cyclictest1426-21gdbus19:10:011
2649091116,2phc2sys0-21swapper/300:34:013
2649091111,4phc2sys0-21swapper/320:31:393
2649091111,2phc2sys0-21swapper/321:15:483
2649091111,2phc2sys0-21swapper/320:16:423
2649091111,1phc2sys0-21swapper/319:21:083
2649091110,2phc2sys0-21swapper/321:01:013
2649091110,2phc2sys0-21swapper/320:48:033
2649091110,2phc2sys0-21swapper/320:01:393
2649091110,2phc2sys0-21swapper/319:31:383
2649091110,1phc2sys0-21swapper/320:27:083
2649091110,1phc2sys0-21swapper/319:14:473
2649091102,2phc2sys0-21swapper/323:13:123
2649091101,2phc2sys0-21swapper/300:16:213
2649091100,3phc2sys0-21swapper/322:40:583
2649091100,2phc2sys0-21swapper/323:53:233
2649091100,2phc2sys0-21swapper/321:32:163
2649091100,2phc2sys0-21swapper/321:32:163
2649091100,2phc2sys0-21swapper/321:22:543
2649091100,2phc2sys0-21swapper/319:56:383
2649091100,2phc2sys0-21swapper/319:26:493
2649091100,1phc2sys0-21swapper/323:15:583
2649091100,1phc2sys0-21swapper/320:24:193
182241799108,1cyclictest0-21swapper/219:10:012
264909191,2phc2sys0-21swapper/320:56:453
264909191,2phc2sys0-21swapper/320:41:423
264909191,2phc2sys0-21swapper/319:46:523
264909190,2phc2sys0-21swapper/322:16:253
264909190,2phc2sys0-21swapper/321:50:243
264909190,2phc2sys0-21swapper/320:06:403
264909190,2phc2sys0-21swapper/319:35:343
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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