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2026-09-01 - 18:56
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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 Tue Sep 01, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
199697121020,2sleep30-21swapper/308:05:023
1918416993216,11cyclictest0-21swapper/010:04:500
19826482280,2sleep0241rcuc/007:54:530
191841699260,13cyclictest2079284-21grep09:04:570
191841699260,13cyclictest2079284-21grep09:04:570
191841699256,11cyclictest0-21swapper/012:00:560
191841699254,12cyclictest0-21swapper/010:24:350
1918416992516,8cyclictest932-1atopacctd09:30:020
191841699251,14cyclictest2300629-21ssh11:11:440
191841699250,12cyclictest2052659-21/usr/sbin/munin08:49:540
191841899241,7cyclictest0-21swapper/211:59:262
191841699245,14cyclictest0-21swapper/009:21:020
191841699244,14cyclictest1188-21runrttasks07:38:190
191841699244,14cyclictest1188-21runrttasks07:34:310
191841699244,14cyclictest1188-21runrttasks07:34:310
191841699244,11cyclictest0-21swapper/011:50:150
191841699244,11cyclictest0-21swapper/009:13:570
191841699243,16cyclictest1918750-21taskset07:11:210
191841699243,10cyclictest2314871-21kthreadcore11:19:500
191841699243,10cyclictest2314871-21kthreadcore11:19:500
191841699241,13cyclictest1188-21runrttasks10:47:270
191841699240,19cyclictest2434179-21taskset12:27:480
191841699240,19cyclictest2292297-21taskset11:08:010
191841699240,15cyclictest1975372-21needreboot07:49:520
191841699240,14cyclictest2407266-21taskset12:12:170
191841699240,14cyclictest2397423-21sh12:05:060
191841699240,14cyclictest2346098-21sh11:39:080
191841699240,14cyclictest2346098-21sh11:39:080
191841699240,14cyclictest1-21systemd11:05:020
191841699240,13cyclictest2442580-21sh12:31:530
191841699240,13cyclictest1-21systemd12:40:020
191841699234,14cyclictest2004097-21taskset08:12:140
191841699233,15cyclictest2133558-21cut09:39:380
191841699233,12cyclictest2143480-21grep09:44:490
191841699233,11cyclictest0-21swapper/010:08:230
191841699232,10cyclictest1188-21runrttasks10:37:530
191841699231,13cyclictest2247172-21sh10:41:240
191841699231,12cyclictest1963081-21aten2.4-expect07:44:410
191841699231,11cyclictest2273328-21runrttasks10:55:200
191841699230,18cyclictest2193511-21taskset10:10:280
191841699230,18cyclictest2167772-21runrttasks09:57:150
191841699230,18cyclictest2123492-21runrttasks09:32:260
191841699230,18cyclictest2080151-21seq09:08:200
191841699230,18cyclictest2066341-21taskset08:58:020
191841699230,18cyclictest1990367-21taskset08:02:430
191841699230,17cyclictest2202251-21sh10:15:090
191841699230,13cyclictest2362338-21taskset11:45:510
191841699230,13cyclictest2229645-21sh10:31:480
191841699230,13cyclictest2166334-21taskset09:54:590
191841699230,13cyclictest2031648-21taskset08:30:450
191841699230,13cyclictest1943505-21taskset07:29:490
191841699230,13cyclictest1943505-21taskset07:29:490
191841699230,13cyclictest1-21systemd11:35:020
191841699230,11cyclictest2282014-21kworker/u16:3+rpciod11:40:330
191841699221,16cyclictest2038572-21taskset08:35:380
191841699221,13cyclictest1925374-21munin-node07:15:040
191841699220,17cyclictest2416352-21sh12:17:430
191841699220,17cyclictest2381365-21runrttasks11:58:500
191841699220,17cyclictest2097468-21taskset09:18:520
191841699220,17cyclictest2059227-21taskset08:50:050
191841699220,17cyclictest2045476-21taskset08:40:550
191841699220,17cyclictest2024794-21taskset08:26:200
191841699220,17cyclictest2017802-21taskset08:20:310
191841699220,17cyclictest2010894-21taskset08:15:460
191841699220,17cyclictest1997081-21taskset08:05:120
191841699220,16cyclictest2317586-21seq11:20:040
191841699220,16cyclictest2222068-21taskset10:29:270
191841699220,16cyclictest1935026-21runrttasks07:21:110
191841699220,12cyclictest2424269-21runrttasks12:20:390
191841699220,12cyclictest2327660-21sh11:27:360
191841699220,12cyclictest1983473-21runrttasks07:57:340
191841699220,11cyclictest2264726-21runrttasks10:50:550
1918418992118,1cyclictest0-21swapper/212:05:012
191841699211,11cyclictest2149450-21runrttasks09:46:050
191841699210,11cyclictest1-21systemd07:10:020
1918417992015,4cyclictest24616-21JS14:54:061
1918417992013,3cyclictest2294490-21kthreadcore11:09:501
2213291191,5phc2sys0-21swapper/312:04:273
2213291191,3phc2sys0-21swapper/309:35:493
1918418991916,1cyclictest0-21swapper/209:24:512
1918418991915,2cyclictest0-21swapper/209:59:092
1918418991914,2cyclictest0-21swapper/208:03:092
1918417991815,2cyclictest1925694-21if_enp1s0.807:15:021
1918417991811,3cyclictest2131145-21909:35:021
2213291170,2phc2sys0-21swapper/310:46:373
2213291170,2phc2sys0-21swapper/310:29:323
2213291170,1phc2sys0-21swapper/312:25:513
191841899173,8cyclictest0-21swapper/209:04:282
191841899173,8cyclictest0-21swapper/209:04:282
1918418991714,1cyclictest0-21swapper/212:22:092
1918418991714,1cyclictest0-21swapper/211:24:502
1918418991714,1cyclictest0-21swapper/211:20:022
1918418991714,1cyclictest0-21swapper/211:20:022
1918418991714,1cyclictest0-21swapper/210:51:382
1918418991714,1cyclictest0-21swapper/210:04:272
1918417991714,2cyclictest977-21rs:main1
1918417991714,2cyclictest2302705-21fschecks_time11:14:461
2213291160,3phc2sys0-21swapper/311:01:493
2213291160,2phc2sys0-21swapper/311:11:463
191841899162,6cyclictest0-21swapper/209:34:272
191841899161,7cyclictest0-21swapper/207:34:272
191841899161,7cyclictest0-21swapper/207:34:272
1918418991613,1cyclictest0-21swapper/211:26:062
1918418991613,1cyclictest0-21swapper/210:24:512
1918418991613,1cyclictest0-21swapper/210:19:422
1918418991613,1cyclictest0-21swapper/210:14:492
1918418991613,1cyclictest0-21swapper/207:44:522
1918418991612,2cyclictest0-21swapper/210:06:592
1918418991611,2cyclictest0-21swapper/209:15:292
191841799168,4cyclictest2313919-21kthreadcore11:19:501
191841799168,4cyclictest2313919-21kthreadcore11:19:501
191841799165,5cyclictest2227892-21seq10:29:531
1918417991613,2cyclictest813-21systemd-logind07:55:021
1918417991613,2cyclictest2263926-21cron10:50:001
1918417991613,2cyclictest2237807-21kworker/u16:1+nfsiod11:38:511
1918417991613,2cyclictest2237807-21kworker/u16:1+nfsiod11:38:511
1918417991613,2cyclictest2175348-21latency_hist10:00:021
1918417991613,2cyclictest1963510-21fschecks_count07:44:461
1918417991612,3cyclictest2095444-21kworker/u16:2+nfsiod09:40:331
1918417991612,3cyclictest1994666-21kthreadcore08:04:491
1918417991612,3cyclictest1975180-21kthreadcore07:49:511
1918417991610,2cyclictest2375059-21kthreadcore11:54:481
2213291150,5phc2sys0-21swapper/311:36:493
2213291150,5phc2sys0-21swapper/311:36:493
2213291150,2phc2sys0-21swapper/310:43:333
2213291150,1phc2sys0-21swapper/308:23:113
191841899155,6cyclictest0-21swapper/209:54:262
191841899151,7cyclictest0-21swapper/210:49:272
191841899151,4cyclictest0-21swapper/211:09:282
1918418991512,1cyclictest0-21swapper/211:36:592
1918418991512,1cyclictest0-21swapper/211:36:592
1918418991512,1cyclictest0-21swapper/211:30:342
1918418991512,1cyclictest0-21swapper/210:59:532
1918418991512,1cyclictest0-21swapper/210:29:512
1918418991512,1cyclictest0-21swapper/209:00:022
1918418991512,1cyclictest0-21swapper/208:44:492
1918418991512,1cyclictest0-21swapper/207:39:392
1918418991511,2cyclictest0-21swapper/207:29:512
1918418991511,2cyclictest0-21swapper/207:29:512
1918418991510,3cyclictest0-21swapper/210:41:092
191841799154,6cyclictest2279579-21kthreadcore10:59:501
191841799154,6cyclictest2193028-21ssh10:10:011
191841799151,4cyclictest2390586-21ssh12:04:271
1918417991512,2cyclictest813-21systemd-logind10:25:021
1918417991512,2cyclictest24472-21rtkit-daemon07:25:531
1918417991512,2cyclictest24472-21rtkit-daemon07:25:531
1918417991512,2cyclictest2362923-21sh11:47:061
1918417991512,2cyclictest2089566-21fschecks_count09:14:461
1918417991512,2cyclictest1941737-21cut07:25:031
1918417991512,2cyclictest1221-21lldpd10:42:571
1918417991512,2cyclictest1-21systemd12:00:031
1918417991511,3cyclictest2329704-21irqcore11:29:491
1918417991511,3cyclictest2282014-21kworker/u16:3+nfsiod12:09:051
1918417991511,3cyclictest2273057-21munin-plugin-st10:55:021
1918417991511,3cyclictest2196161-21fschecks_count10:14:451
1918417991511,3cyclictest2116701-21irqcore09:29:471
1918417991511,3cyclictest2077996-21kthreadcore09:04:521
1918417991511,3cyclictest2077996-21kthreadcore09:04:521
1918417991511,3cyclictest2052268-21kworker/u16:3+nfsiod10:36:251
1918417991511,3cyclictest2052268-21kworker/u16:3+nfsiod10:18:511
1918417991511,3cyclictest2052268-21kworker/u16:3+nfsiod09:45:421
1918417991511,3cyclictest2031427-21kworker/u16:1+nfsiod10:04:081
1918417991511,3cyclictest2005749-21kthreadcore08:14:501
1918417991511,2cyclictest1011-21gdbus08:55:021
191841799150,14cyclictest2031284-21perf08:30:011
2213291141,2phc2sys0-21swapper/309:27:203
2213291140,2phc2sys0-21swapper/312:07:093
2213291140,2phc2sys0-21swapper/311:33:563
2213291140,2phc2sys0-21swapper/310:19:063
191841899146,4cyclictest0-21swapper/212:26:182
191841899141,8cyclictest0-21swapper/208:54:272
191841899141,6cyclictest0-21swapper/212:34:272
1918418991412,1cyclictest0-21swapper/209:50:032
191841899141,1cyclictest0-21swapper/209:44:272
1918418991411,1cyclictest0-21swapper/212:39:332
1918418991411,1cyclictest0-21swapper/212:14:532
1918418991411,1cyclictest0-21swapper/212:09:552
1918418991411,1cyclictest0-21swapper/211:11:212
1918418991411,1cyclictest0-21swapper/210:34:522
1918418991411,1cyclictest0-21swapper/209:40:012
1918418991411,1cyclictest0-21swapper/209:29:472
1918418991411,1cyclictest0-21swapper/209:12:002
1918418991411,1cyclictest0-21swapper/209:05:592
1918418991411,1cyclictest0-21swapper/208:34:512
1918418991411,1cyclictest0-21swapper/208:19:542
1918418991411,1cyclictest0-21swapper/208:14:322
1918418991411,1cyclictest0-21swapper/207:49:512
191841899140,8cyclictest0-21swapper/212:16:412
191841799148,4cyclictest82050irq/121-eno112:15:481
191841799147,6cyclictest24615-21JS14:54:061
191841799145,2cyclictest2450291-21latency_hist12:35:021
191841799141,7cyclictest0-21swapper/109:23:351
191841799141,4cyclictest2024342-21perf08:25:011
1918417991412,1cyclictest1918414-21cyclictest09:15:091
1918417991411,2cyclictest2409077-21gltestperf12:14:451
1918417991411,2cyclictest2325458-21pmu-power11:24:531
1918417991411,2cyclictest2160911-21irqcore09:54:471
1918417991411,2cyclictest2083290-21kthreadcore09:09:501
1918417991411,2cyclictest1931437-21kthreadcore07:19:511
1918417991411,2cyclictest1918414-21cyclictest07:59:481
1918417991411,2cyclictest1206-21snmpd11:41:391
1918417991410,3cyclictest2282014-21kworker/u16:3+nfsiod12:38:461
1918417991410,3cyclictest2037740-21ptp4l-jitter08:34:551
24232852130,2sleep30-21swapper/312:19:533
2213291131,5phc2sys0-21swapper/308:59:253
2213291130,3phc2sys0-21swapper/309:59:273
2213291130,3phc2sys0-21swapper/308:34:293
2213291130,2phc2sys0-21swapper/312:21:173
2213291130,2phc2sys0-21swapper/312:12:203
2213291130,2phc2sys0-21swapper/310:13:023
2213291130,1phc2sys0-21swapper/308:06:363
2213291130,1phc2sys0-21swapper/307:28:273
2213291130,1phc2sys0-21swapper/307:28:273
191841899133,7cyclictest0-21swapper/207:54:252
191841899131,6cyclictest0-21swapper/208:09:262
191841899131,5cyclictest0-21swapper/211:49:272
191841899131,5cyclictest0-21swapper/207:59:272
1918418991311,1cyclictest0-21swapper/208:39:302
1918418991311,1cyclictest0-21swapper/208:29:512
1918418991311,1cyclictest0-21swapper/207:15:032
1918418991311,1cyclictest0-21swapper/207:15:032
1918418991310,1cyclictest0-21swapper/211:43:302
1918418991310,1cyclictest0-21swapper/210:39:472
1918418991310,1cyclictest0-21swapper/208:24:502
191841799139,3cyclictest2052268-21kworker/u16:3+nfsiod09:36:541
191841799139,3cyclictest2044022-21kthreadcore08:39:501
191841799139,3cyclictest1998656-21irqrtprio08:09:471
191841799138,4cyclictest1962222-21dump-pmu-power07:40:011
191841799135,7cyclictest2045611-21sshd-auth08:42:411
1918417991310,2cyclictest977-21rs:main1
1918417991310,2cyclictest813-21systemd-logind11:35:021
1918417991310,2cyclictest2286559-21kthreadcore11:04:501
1918417991310,2cyclictest2072021-21cut08:59:501
1918417991310,2cyclictest0-21swapper/108:45:591
2213291121,5phc2sys0-21swapper/308:14:293
2213291121,2phc2sys0-21swapper/307:59:273
2213291120,3phc2sys0-21swapper/312:30:053
2213291120,2phc2sys0-21swapper/311:26:143
2213291120,2phc2sys0-21swapper/311:22:583
2213291120,2phc2sys0-21swapper/309:20:473
2213291120,1phc2sys0-21swapper/309:32:533
191841899129,1cyclictest0-21swapper/211:01:102
1918418991210,1cyclictest0-21swapper/208:50:032
1918418991210,1cyclictest0-21swapper/207:25:032
191841799125,5cyclictest1949130-21aten_repower_en07:34:311
191841799125,5cyclictest1949130-21aten_repower_en07:34:311
2213291112,3phc2sys0-21swapper/307:16:093
2213291112,2phc2sys0-21swapper/312:36:053
2213291111,4phc2sys0-21swapper/309:44:273
2213291111,3phc2sys0-21swapper/310:31:143
2213291111,2phc2sys0-21swapper/310:20:563
2213291111,1phc2sys0-21swapper/307:37:013
2213291110,3phc2sys0-21swapper/311:10:033
2213291110,2phc2sys0-21swapper/309:20:033
2213291110,2phc2sys0-21swapper/309:11:253
2213291110,2phc2sys0-21swapper/308:19:273
2213291110,1phc2sys0-21swapper/308:41:593
191841899119,1cyclictest0-21swapper/211:50:192
2213291103,2phc2sys0-21swapper/310:56:073
2213291101,3phc2sys0-21swapper/310:54:273
2213291101,2phc2sys0-21swapper/311:46:393
2213291100,4phc2sys0-21swapper/307:24:263
2213291100,3phc2sys0-21swapper/311:15:523
2213291100,3phc2sys0-21swapper/311:15:523
2213291100,2phc2sys0-21swapper/311:55:133
2213291100,2phc2sys0-21swapper/311:50:323
2213291100,2phc2sys0-21swapper/310:37:163
2213291100,2phc2sys0-21swapper/310:03:153
2213291100,2phc2sys0-21swapper/309:45:323
2213291100,2phc2sys0-21swapper/307:49:573
2213291100,2phc2sys0-21swapper/307:14:493
2213291100,1phc2sys0-21swapper/309:52:173
2213291100,1phc2sys0-21swapper/308:46:363
2213291100,1phc2sys0-21swapper/307:51:173
191841899108,1cyclictest0-21swapper/207:10:022
221329191,3phc2sys0-21swapper/307:44:263
221329190,2phc2sys0-21swapper/311:40:303
221329190,2phc2sys0-21swapper/310:05:203
221329190,2phc2sys0-21swapper/309:08:003
221329190,2phc2sys0-21swapper/309:04:473
221329190,2phc2sys0-21swapper/309:04:473
221329190,2phc2sys0-21swapper/308:40:033
221329190,2phc2sys0-21swapper/308:25:043
221329190,2phc2sys0-21swapper/307:34:563
221329190,2phc2sys0-21swapper/307:34:563
221329190,2phc2sys0-21swapper/307:09:443
19184179996,2cyclictest0-21swapper/107:10:021
221329180,2phc2sys0-21swapper/308:50:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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