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2026-03-21 - 22:05
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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 Sat Mar 21, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20317302880,1sleep20-21swapper/208:10:012
23274762730,1sleep10-21swapper/111:16:321
24331952660,1sleep02433198-21latency12:16:310
23870002480,2sleep10-21swapper/111:51:311
22002962320,3sleep30-21swapper/310:05:003
22557992300,2sleep30-21swapper/310:36:303
23039322290,1sleep10-21swapper/111:03:531
1956667992920,8cyclictest2062409-21systemd08:35:021
195666799269,8cyclictest0-21swapper/111:30:001
1956667992613,8cyclictest2197361-21kthreadcore10:01:331
1956667992612,9cyclictest2305777-21/usr/sbin/munin11:06:291
195666799254,9cyclictest0-21swapper/111:56:241
195666799240,19cyclictest2382689-21sh11:49:021
195666799234,14cyclictest2444340-21sh12:24:231
195666799234,13cyclictest1996-21runrttasks07:13:131
1956667992320,2cyclictest2226388-21cron10:20:001
1956667992315,7cyclictest1956655-21cyclictest09:35:011
1956667992315,7cyclictest0-21swapper/109:00:011
195666799231,13cyclictest2207186-21ssh10:07:001
195666799231,13cyclictest1976804-21taskset07:22:401
1956667992310,9cyclictest29026-21sendmail-mta09:37:431
1956668992210,7cyclictest0-21swapper/208:40:012
195666799226,10cyclictest2267463-21cat10:41:361
195666799224,13cyclictest2055639-21taskset08:27:441
195666799223,10cyclictest2007092-21taskset07:48:171
195666799222,12cyclictest2181009-21taskset09:51:531
195666799222,11cyclictest2338638-21sh11:23:101
195666799222,11cyclictest1996-21runrttasks09:26:501
195666799221,5cyclictest2111859-21ssh09:12:311
1956667992214,7cyclictest2031675-21apt-key08:10:011
195666799221,13cyclictest2130317-21taskset09:24:151
195666799220,4cyclictest2166126-21runrttasks09:45:311
195666799220,13cyclictest2279056-21taskset10:50:241
1956662992212,5cyclictest0-21swapper/012:10:000
2649091210,2phc2sys0-21swapper/308:36:253
195666799213,10cyclictest2233650-21sh10:22:351
195666799211,5cyclictest2445334-21taskset12:25:261
195666799211,5cyclictest2086122-21runrttasks08:52:461
195666799211,4cyclictest2216300-21runrttasks10:12:401
195666799211,4cyclictest2104741-21diskmemload10:46:541
195666799211,4cyclictest2001108-21seq07:43:541
195666799211,3cyclictest2401808-21runrttasks12:00:331
195666799211,3cyclictest2294858-21taskset10:58:181
195666799211,3cyclictest2157821-21ssh09:41:151
195666799211,3cyclictest2120786-21taskset09:17:541
195666799211,3cyclictest2120786-21taskset09:17:541
195666799211,3cyclictest2080032-21taskset08:47:161
195666799211,3cyclictest2037632-21taskset08:14:061
195666799211,3cyclictest2019236-21taskset07:58:481
1956667992112,8cyclictest28938-21cron08:25:001
195666799211,11cyclictest2462111-21ssh12:34:521
195666799211,11cyclictest2434511-21ssh12:17:321
195666799211,11cyclictest2364575-21ssh11:37:551
195666799211,11cyclictest2349306-21ssh11:30:561
195666799211,11cyclictest2025316-21seq08:04:101
195666799210,5cyclictest2410876-21taskset12:06:111
195666799210,5cyclictest2314361-21ssh11:10:481
195666799210,5cyclictest2235873-21taskset10:25:471
195666799210,5cyclictest1996-21runrttasks11:40:241
195666799210,5cyclictest1994880-21taskset07:36:391
195666799210,5cyclictest1989069-21runrttasks07:34:421
195666799210,4cyclictest2426395-21runrttasks12:13:321
195666799210,13cyclictest1977326-21taskset07:25:251
1956662992113,4cyclictest2455478-21sort12:31:290
1956662992112,5cyclictest2332740-21/usr/sbin/munin11:21:270
195666799201,4cyclictest2007566-21runrttasks07:50:251
195666799201,3cyclictest2253361-21seq10:35:591
195666799201,3cyclictest2098974-21taskset09:05:191
195666799201,3cyclictest1965270-21runrttasks07:16:041
195666799200,5cyclictest2038107-21taskset08:16:141
195666799200,5cyclictest1996-21runrttasks08:35:571
195666799200,4cyclictest2183715-21taskset09:55:501
195666799200,4cyclictest2068544-21taskset08:40:401
195666799200,3cyclictest2463149-21ssh12:36:071
195666799200,3cyclictest2244348-21taskset10:30:361
195666799200,3cyclictest2092678-21taskset09:00:181
1956662992017,2cyclictest2080411-21systemd08:50:010
1956662992016,2cyclictest2200552-21kworker/u16:1-events_unbound11:00:020
1956662992014,5cyclictest2202175-21gltestperf10:06:280
195666299191,6cyclictest1290-21dbus-daemon07:45:010
1956662991916,2cyclictest2278500-21idleruntime-cro10:50:000
1956662991916,2cyclictest2098452-21apt-key09:05:010
1956662991916,2cyclictest2031700-21systemd08:10:010
1956662991913,5cyclictest1956655-21cyclictest12:36:310
2649091181,2phc2sys0-21swapper/312:04:123
2649091181,2phc2sys0-21swapper/309:19:283
2649091181,2phc2sys0-21swapper/309:19:283
2649091180,2phc2sys0-21swapper/310:51:033
1956668991815,1cyclictest0-21swapper/212:05:002
1956668991815,1cyclictest0-21swapper/210:00:002
1956668991815,1cyclictest0-21swapper/208:44:562
195666299189,5cyclictest2123252-21/usr/sbin/munin09:21:260
1956662991816,1cyclictest2287465-21/usr/sbin/munin10:55:020
1956662991815,2cyclictest1995277-21systemd-run07:40:000
1956662991814,2cyclictest1326-21systemd-logind08:00:010
1956662991810,4cyclictest2197623-21grep10:01:340
1956668991715,1cyclictest0-21swapper/212:40:022
1956668991715,1cyclictest0-21swapper/207:15:012
1956668991714,1cyclictest0-21swapper/211:55:012
1956668991714,1cyclictest0-21swapper/211:40:012
195666299179,7cyclictest2358608-21cpuspeed_turbos11:36:260
195666299178,5cyclictest2236224-21/usr/sbin/munin10:26:310
195666299176,4cyclictest2307171-21kthreadcore11:06:300
195666299175,6cyclictest2254138-21fschecks_count10:36:260
1956662991715,1cyclictest0-21swapper/009:35:010
1956662991714,2cyclictest2368392-21kthreadcore11:41:300
1956662991714,2cyclictest2217830-21cut10:15:010
1956662991714,2cyclictest1290-21dbus-daemon11:55:010
1956662991714,2cyclictest1288-1atopacctd07:55:000
1956662991714,2cyclictest0-21swapper/008:05:000
195666299170,12cyclictest2222672-21kthreadcore10:16:320
2649091161,2phc2sys0-21swapper/310:56:293
2649091161,2phc2sys0-21swapper/310:25:013
2649091160,4phc2sys0-21swapper/308:00:023
2649091160,2phc2sys0-21swapper/309:40:433
2649091160,2phc2sys0-21swapper/309:22:123
2649091160,1phc2sys0-21swapper/310:33:063
195666899161,9cyclictest0-21swapper/208:50:012
1956668991614,1cyclictest0-21swapper/210:25:012
1956668991613,1cyclictest0-21swapper/211:07:572
1956668991613,1cyclictest0-21swapper/211:00:002
1956668991613,1cyclictest0-21swapper/210:45:002
1956668991613,1cyclictest0-21swapper/209:30:002
1956668991612,2cyclictest0-21swapper/212:16:222
1956668991611,2cyclictest0-21swapper/212:21:252
195666899161,10cyclictest0-21swapper/207:20:012
195666299168,2cyclictest0-21swapper/009:12:190
195666299167,5cyclictest2149835-21fschecks_time09:36:270
195666299167,4cyclictest0-21swapper/011:46:340
195666299164,2cyclictest2165499-21apt09:45:000
195666299163,7cyclictest2167517-21awk09:46:290
1956662991614,1cyclictest0-21swapper/009:10:010
1956662991613,2cyclictest2187132-21kthreadcore09:56:330
1956662991613,2cyclictest2055858-21cut08:30:000
1956662991613,2cyclictest1290-21dbus-daemon11:15:020
1956662991612,3cyclictest2235349-21systemd10:25:020
2649091150,5phc2sys0-21swapper/312:20:033
2649091150,3phc2sys0-21swapper/308:46:323
2649091150,2phc2sys0-21swapper/310:18:133
2649091150,2phc2sys0-21swapper/309:31:523
2649091150,2phc2sys0-21swapper/307:24:553
1956668991513,1cyclictest0-21swapper/212:10:012
1956668991513,1cyclictest0-21swapper/210:50:002
1956668991513,1cyclictest0-21swapper/210:35:022
1956668991512,2cyclictest0-21swapper/211:01:252
1956668991512,1cyclictest0-21swapper/211:50:012
1956668991512,1cyclictest0-21swapper/211:30:002
1956668991512,1cyclictest0-21swapper/209:16:272
1956668991512,1cyclictest0-21swapper/209:16:272
1956668991512,1cyclictest0-21swapper/209:13:202
1956668991512,1cyclictest0-21swapper/208:51:282
1956668991512,1cyclictest0-21swapper/207:51:342
1956668991512,1cyclictest0-21swapper/207:45:002
1956668991511,2cyclictest0-21swapper/209:43:562
1956668991511,1cyclictest0-21swapper/212:31:332
1956668991511,1cyclictest0-21swapper/212:00:012
195666899151,10cyclictest0-21swapper/210:40:012
195666299158,2cyclictest0-21swapper/011:02:010
195666299157,4cyclictest2267664-21unixbench-2d10:41:370
195666299157,4cyclictest0-21swapper/010:31:330
195666299157,2cyclictest0-21swapper/012:00:040
195666299156,4cyclictest0-21swapper/009:26:330
1956662991513,1cyclictest0-21swapper/008:35:000
1956662991512,2cyclictest2427386-21grep12:15:000
1956662991512,2cyclictest2004392-21kthreadcore07:46:320
1956662991512,2cyclictest1982371-21mailstats07:26:360
195666299150,13cyclictest2348414-21apt11:30:000
195666299150,10cyclictest257-21systemd-journal09:55:010
2649091146,2phc2sys0-21swapper/311:38:323
2649091140,2phc2sys0-21swapper/312:25:173
2649091140,2phc2sys0-21swapper/310:45:333
2649091140,2phc2sys0-21swapper/307:11:363
195666899149,4cyclictest0-21swapper/212:11:242
1956668991412,1cyclictest0-21swapper/209:25:022
1956668991412,1cyclictest0-21swapper/208:25:002
1956668991412,1cyclictest0-21swapper/207:50:002
1956668991411,1cyclictest0-21swapper/212:26:322
1956668991411,1cyclictest0-21swapper/211:35:002
1956668991411,1cyclictest0-21swapper/211:16:412
1956668991411,1cyclictest0-21swapper/210:51:312
1956668991411,1cyclictest0-21swapper/210:11:302
1956668991411,1cyclictest0-21swapper/210:10:012
1956668991411,1cyclictest0-21swapper/209:51:352
1956668991411,1cyclictest0-21swapper/209:36:302
1956668991411,1cyclictest0-21swapper/208:16:242
1956668991411,1cyclictest0-21swapper/208:01:342
1956668991411,1cyclictest0-21swapper/207:40:002
1956668991411,1cyclictest0-21swapper/207:25:012
1956668991411,1cyclictest0-21swapper/207:10:002
195666799147,6cyclictest1956507-21latency_hist07:10:021
195666299147,5cyclictest257-21systemd-journal08:44:550
195666299147,2cyclictest0-21swapper/011:15:320
195666299147,2cyclictest0-21swapper/009:15:380
195666299147,2cyclictest0-21swapper/009:15:380
195666299145,4cyclictest2080660-21/usr/sbin/munin08:51:330
195666299141,4cyclictest2437507-21ssh12:21:280
1956662991411,2cyclictest2446752-21if_enp1s012:26:280
1956662991411,2cyclictest2044185-21acpi08:21:230
1956662991411,2cyclictest1972700-21kthreadcore07:21:300
1956662991411,2cyclictest1964570-21kthreadcore07:15:020
1956662991411,2cyclictest1959783-21kthreadcore07:11:320
195666299140,7cyclictest2393676-21apt-get11:56:230
2902298130,7rtkit-daemon2349630-21apt-get11:31:230
2649091130,2phc2sys0-21swapper/312:16:553
2649091130,2phc2sys0-21swapper/311:25:173
2649091130,2phc2sys0-21swapper/311:05:543
2649091130,2phc2sys0-21swapper/309:27:463
2649091130,2phc2sys0-21swapper/307:33:363
1956668991311,1cyclictest0-21swapper/211:41:312
1956668991311,1cyclictest0-21swapper/209:31:362
1956668991311,1cyclictest0-21swapper/208:31:252
1956668991311,1cyclictest0-21swapper/208:11:312
1956668991310,1cyclictest0-21swapper/211:21:372
1956668991310,1cyclictest0-21swapper/210:01:332
1956668991310,1cyclictest0-21swapper/209:46:302
1956668991310,1cyclictest0-21swapper/209:01:302
1956668991310,1cyclictest0-21swapper/207:26:302
195666299133,2cyclictest491rcuog/208:16:280
1956662991310,2cyclictest2092459-21systemd-run09:00:010
1956662991310,2cyclictest2065331-21kthreadcore08:36:330
1956662991310,2cyclictest1983593-21aten_repower_fr07:31:260
1956662991310,2cyclictest1956655-21cyclictest08:11:310
2649091123,2phc2sys0-21swapper/309:13:393
2649091121,3phc2sys0-21swapper/312:31:063
2649091120,3phc2sys0-21swapper/311:16:243
2649091120,2phc2sys0-21swapper/312:36:273
2649091120,2phc2sys0-21swapper/312:05:213
2649091120,2phc2sys0-21swapper/310:43:293
2649091120,2phc2sys0-21swapper/310:29:553
2649091120,1phc2sys0-21swapper/311:43:293
195666899129,2cyclictest0-21swapper/207:56:322
195666899121,5cyclictest0-21swapper/209:06:242
195666899121,4cyclictest0-21swapper/210:20:012
1956668991210,1cyclictest0-21swapper/211:11:302
1956668991210,1cyclictest0-21swapper/210:26:292
1956668991210,1cyclictest0-21swapper/209:00:012
1956668991210,1cyclictest0-21swapper/208:30:002
2649091113,2phc2sys0-21swapper/311:46:253
2649091112,2phc2sys0-21swapper/307:46:313
2649091110,3phc2sys0-21swapper/310:13:553
2649091110,2phc2sys0-21swapper/311:22:453
2649091110,2phc2sys0-21swapper/310:05:373
2649091110,2phc2sys0-21swapper/309:52:133
2649091110,1phc2sys0-21swapper/308:54:283
2649091110,1phc2sys0-21swapper/308:26:433
2649091102,2phc2sys0-21swapper/309:36:283
2649091101,3phc2sys0-21swapper/311:30:383
2649091101,2phc2sys0-21swapper/311:51:463
2649091101,2phc2sys0-21swapper/308:06:313
2649091100,2phc2sys0-21swapper/312:10:383
2649091100,2phc2sys0-21swapper/311:01:173
2649091100,2phc2sys0-21swapper/309:55:193
2649091100,2phc2sys0-21swapper/309:47:023
2649091100,2phc2sys0-21swapper/309:05:023
2649091100,2phc2sys0-21swapper/308:59:563
2649091100,2phc2sys0-21swapper/308:20:023
2649091100,2phc2sys0-21swapper/307:43:023
2649091100,2phc2sys0-21swapper/307:36:213
2649091100,2phc2sys0-21swapper/307:26:353
2649091100,1phc2sys0-21swapper/307:53:133
195666899108,1cyclictest0-21swapper/207:30:162
264909190,3phc2sys0-21swapper/307:20:013
264909190,2phc2sys0-21swapper/311:55:033
264909190,2phc2sys0-21swapper/311:10:223
264909190,2phc2sys0-21swapper/309:06:263
264909190,2phc2sys0-21swapper/308:41:253
264909190,2phc2sys0-21swapper/308:31:283
264909190,2phc2sys0-21swapper/308:11:243
264909190,2phc2sys0-21swapper/307:05:113
264909180,2phc2sys0-21swapper/308:20:303
264909180,2phc2sys0-21swapper/308:00:343
19566629980,6cyclictest1956664-21munin-run07:10:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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