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2026-04-26 - 18:46
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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 Sun Apr 26, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5132072500,2sleep30-21swapper/310:23:493
5190382430,1sleep1519039-21/usr/sbin/munin10:25:441
5584082310,2sleep30-21swapper/310:53:483
246597992912,8cyclictest0-21swapper/112:25:341
246597992724,2cyclictest619012-21apt-config11:35:001
246597992519,2cyclictest134050irq/121-eno111:10:411
246596992511,5cyclictest700358-21grep12:25:480
246598992422,1cyclictest0-21swapper/210:30:022
246597992418,2cyclictest134050irq/121-eno109:45:431
246596992414,5cyclictest673726-21kthreadcore12:10:410
246596992413,6cyclictest0-21swapper/011:40:010
246598992318,3cyclictest330452-21turbostat08:15:002
246597992315,3cyclictest393391-21sshd10:57:041
246597992315,3cyclictest393391-21sshd10:57:041
246596992320,2cyclictest596511-21grep11:20:010
246596992313,5cyclictest0-21swapper/010:10:010
246596992312,6cyclictest0-21swapper/009:20:340
246597992214,3cyclictest632103-21/usr/sbin/munin11:40:431
246597992213,2cyclictest1326-21systemd-logind09:05:011
246596992219,2cyclictest528848-21systemd-run10:35:010
246596992212,5cyclictest0-21swapper/011:35:020
246596992210,4cyclictest476799-21fschecks_count10:00:370
24659799218,7cyclictest0-21swapper/111:50:331
246597992117,3cyclictest494211-21kthreadcore10:10:421
24659699218,4cyclictest642448-21cstates11:50:360
246596992118,2cyclictest268049-21latency_hist07:25:010
246596992118,2cyclictest253753-21kthreadcore07:15:010
246596992114,6cyclictest0-21swapper/011:40:430
246596992110,6cyclictest0-21swapper/011:12:040
246596992110,6cyclictest0-21swapper/010:45:020
246598992017,1cyclictest0-21swapper/212:20:012
24659799209,3cyclictest0-21swapper/109:35:381
246597992017,2cyclictest384067-21kthreadcore08:55:421
246597992016,3cyclictest607264-21kthreadcore11:25:421
246597992016,3cyclictest451092-21unixbench-2d09:40:481
246597992016,3cyclictest3824565-21in:imuxsock07:35:021
24659699209,6cyclictest0-21swapper/009:50:360
24659699209,2cyclictest0-21swapper/012:34:190
24659699206,2cyclictest0-21swapper/011:22:450
246596992018,1cyclictest656566-21grep12:00:000
246596992014,5cyclictest679557-21aten2.4-expect12:15:350
24659699200,15cyclictest299544-21/usr/sbin/munin07:50:430
2649091191,3phc2sys0-21swapper/307:55:343
2649091190,2phc2sys0-21swapper/309:20:493
246598991916,2cyclictest0-21swapper/210:20:032
246598991916,1cyclictest0-21swapper/211:25:412
246598991916,1cyclictest0-21swapper/207:45:442
24659799199,3cyclictest434451-21kthreadcore09:30:411
24659799198,6cyclictest0-21swapper/111:22:041
246597991916,2cyclictest671685-21latency_hist12:10:021
246597991916,2cyclictest0-21swapper/110:05:011
246597991915,3cyclictest657075-21aten_repower_cu12:00:351
246597991915,3cyclictest0-21swapper/107:15:011
246597991914,4cyclictest688552-21kthreadcore12:20:411
246597991914,4cyclictest567752-21sed11:00:391
246597991912,2cyclictest1996-21runrttasks09:26:051
24659699199,5cyclictest0-21swapper/012:20:430
246596991916,2cyclictest330691-21cut08:15:020
246596991916,2cyclictest0-21swapper/010:40:020
246596991916,2cyclictest0-21swapper/009:15:370
246596991912,4cyclictest268423-21aten2.4-expect07:25:370
246596991912,3cyclictest0-21swapper/007:15:390
246596991912,2cyclictest573886-21munin-run11:05:000
246596991910,2cyclictest305930-21aten2.4-expect07:55:350
2649091180,3phc2sys0-21swapper/307:25:433
2649091180,2phc2sys0-21swapper/312:18:033
2649091180,2phc2sys0-21swapper/309:47:003
246598991816,1cyclictest0-21swapper/208:10:012
246598991816,1cyclictest0-21swapper/207:30:012
246598991815,1cyclictest0-21swapper/212:25:012
246598991815,1cyclictest0-21swapper/211:55:002
246598991815,1cyclictest0-21swapper/210:10:382
246598991815,1cyclictest0-21swapper/209:25:442
24659799189,5cyclictest1996-21runrttasks10:41:571
24659799189,3cyclictest280975-21aten2.4-expect07:35:341
24659799188,5cyclictest0-21swapper/111:19:001
24659799188,3cyclictest526594-21grep10:30:441
24659799185,5cyclictest292615-21sed07:40:491
24659799184,5cyclictest400527-21aten2.4-expect09:10:351
24659799184,5cyclictest324627-21aten2.4-expect08:10:341
246597991815,2cyclictest686484-21grep12:20:021
246597991815,2cyclictest507591-21irqcore10:20:381
246597991815,2cyclictest408324-21cpuspeed_turbos09:15:371
246597991815,2cyclictest3824565-21in:imuxsock08:02:041
246597991815,2cyclictest365548-21kthreadcore08:40:421
246597991815,2cyclictest321106-21kthreadcore08:05:421
246597991815,2cyclictest294063-21gltestperf07:45:381
246597991815,2cyclictest246706-21cut07:10:021
246597991815,2cyclictest0-21swapper/110:20:011
246597991814,3cyclictest704781-21kthreadcore12:30:411
246597991814,3cyclictest486680-21kthreadcore10:05:431
246597991814,3cyclictest266651-21missed_timers07:20:431
24659699189,4cyclictest0-21swapper/012:08:150
24659699186,4cyclictest337215-21tail08:20:360
246596991815,2cyclictest400942-21df_inode09:10:370
246596991815,2cyclictest386368-21mailstats08:55:460
246596991815,2cyclictest1290-21dbus-daemon09:35:000
2649191170,1ptp4l0-21swapper/310:40:343
246598991715,1cyclictest0-21swapper/207:25:012
246598991714,1cyclictest0-21swapper/211:35:352
246598991714,1cyclictest0-21swapper/207:15:002
246598991712,2cyclictest0-21swapper/209:56:562
24659799174,5cyclictest268448-21aten2.4-expect07:25:371
246597991715,1cyclictest461019-21head09:50:361
246597991714,2cyclictest638639-21kthreadcore11:45:431
246597991714,2cyclictest626587-21cat11:40:001
246597991714,2cyclictest553144-21kernelversion10:50:411
246597991714,2cyclictest371255-21kthreadcore08:45:431
246597991714,2cyclictest306571-21cut07:55:381
246597991714,2cyclictest299737-21cpu07:50:361
246597991714,2cyclictest254965-21timerwakeupswit07:15:021
246597991714,2cyclictest0-21swapper/110:40:011
246597991714,2cyclictest0-21swapper/108:30:021
246597991713,3cyclictest3851703-21mta-sts-daemon11:55:211
246597991713,3cyclictest376396-21kthreadcore08:50:421
246597991711,5cyclictest0-21swapper/110:45:411
24659699179,2cyclictest0-21swapper/010:13:590
24659699178,5cyclictest0-21swapper/010:45:480
24659699177,4cyclictest0-21swapper/007:40:360
24659699177,3cyclictest355730-21munin-run08:35:020
24659699176,6cyclictest0-21swapper/011:00:020
24659699176,6cyclictest0-21swapper/011:00:020
24659699175,1cyclictest514101-21apt-get10:25:340
246596991714,2cyclictest657878-21if_enp1s012:00:400
246596991714,2cyclictest473903-21grep09:55:470
246596991714,2cyclictest445136-21latency_hist09:40:000
246596991714,2cyclictest3824565-21in:imuxsock11:47:040
246596991714,2cyclictest1-21systemd08:04:450
2649091160,2phc2sys0-21swapper/309:33:323
2649091160,1phc2sys0-21swapper/312:10:293
24659899161,9cyclictest0-21swapper/211:10:012
246598991614,1cyclictest0-21swapper/210:07:452
246598991614,1cyclictest0-21swapper/209:50:432
246598991614,1cyclictest0-21swapper/207:45:022
246598991613,1cyclictest0-21swapper/212:15:012
246598991613,1cyclictest0-21swapper/212:10:002
246598991613,1cyclictest0-21swapper/211:22:482
246598991613,1cyclictest0-21swapper/210:55:462
246598991613,1cyclictest0-21swapper/210:55:462
246598991613,1cyclictest0-21swapper/210:00:372
246598991613,1cyclictest0-21swapper/209:50:012
246598991613,1cyclictest0-21swapper/209:45:002
246598991613,1cyclictest0-21swapper/209:15:012
246598991613,1cyclictest0-21swapper/208:45:002
246598991613,1cyclictest0-21swapper/208:15:412
246598991610,2cyclictest0-21swapper/209:20:342
24659799164,3cyclictest0-21swapper/111:05:421
246597991613,2cyclictest672987-21irqcore12:10:401
246597991613,2cyclictest358708-21kthreadcore08:35:411
246597991613,2cyclictest352746-21kthreadcore08:30:421
246597991613,2cyclictest342397-21timerandwakeup08:20:471
246597991613,2cyclictest0-21swapper/109:55:461
246597991612,3cyclictest399837-21apt-key09:10:011
246597991610,5cyclictest3851702-21mta-sts-daemon12:38:501
24659699169,3cyclictest509209-21kthreadcore10:20:390
24659699165,4cyclictest604716-21cat11:25:360
24659699161,9cyclictest1290-21dbus-daemon09:05:010
24659699161,6cyclictest293453-21aten2.4-expect07:45:350
24659699161,6cyclictest0-21swapper/012:35:360
24659699161,5cyclictest0-21swapper/010:15:390
246596991613,2cyclictest554820-21kthreadcore10:50:430
246596991613,2cyclictest453732-21fschecks_time09:45:390
246596991613,2cyclictest423586-21grep09:25:370
246596991613,2cyclictest372912-21kthreadcore08:45:430
246596991613,2cyclictest366977-21missed_timers08:40:440
246596991613,2cyclictest335480-21kthreadcore08:15:430
246596991613,2cyclictest324171-21latency_hist08:10:010
246596991613,2cyclictest281929-21ps07:35:390
246596991613,2cyclictest0-21swapper/009:45:020
24659699160,9cyclictest577763-21cut11:05:410
2649091151,3phc2sys0-21swapper/311:20:343
2649091150,2phc2sys0-21swapper/309:17:013
246598991513,1cyclictest0-21swapper/211:46:002
246598991513,1cyclictest0-21swapper/209:10:002
246598991513,1cyclictest0-21swapper/208:50:012
246598991513,1cyclictest0-21swapper/207:10:012
246598991512,2cyclictest0-21swapper/211:42:432
246598991512,2cyclictest0-21swapper/210:50:362
246598991512,1cyclictest0-21swapper/211:55:362
246598991512,1cyclictest0-21swapper/209:30:472
246598991512,1cyclictest0-21swapper/209:20:012
246598991512,1cyclictest0-21swapper/208:05:012
246598991511,2cyclictest0-21swapper/212:35:402
246598991511,2cyclictest0-21swapper/212:29:072
246598991511,2cyclictest0-21swapper/207:50:332
246597991512,2cyclictest420787-21cat09:20:481
246597991510,1cyclictest134050irq/121-eno108:18:251
24659699156,2cyclictest394643-21sed09:05:390
24659699152,5cyclictest343395-21aten2.4-expect08:25:350
24659699150,6cyclictest355885-21aten_repower_en08:35:340
2649091140,3phc2sys0-21swapper/312:08:173
2649091140,2phc2sys0-21swapper/312:38:563
2649091140,2phc2sys0-21swapper/312:27:413
2649091140,2phc2sys0-21swapper/310:58:503
2649091140,2phc2sys0-21swapper/310:58:503
2649091140,2phc2sys0-21swapper/310:06:563
2649091140,2phc2sys0-21swapper/307:36:133
246598991412,1cyclictest0-21swapper/209:35:232
246598991412,1cyclictest0-21swapper/209:05:002
246598991412,1cyclictest0-21swapper/207:55:412
246598991411,1cyclictest0-21swapper/212:00:392
246598991411,1cyclictest0-21swapper/211:15:342
246598991411,1cyclictest0-21swapper/210:35:412
246598991411,1cyclictest0-21swapper/208:38:042
246598991411,1cyclictest0-21swapper/207:35:412
246598991410,2cyclictest0-21swapper/211:02:402
246598991410,2cyclictest0-21swapper/208:55:412
24659699141,6cyclictest374865-21/usr/sbin/munin08:50:470
246596991410,3cyclictest246436-21latency_hist07:10:020
2649091135,1phc2sys0-21swapper/307:10:413
2649091131,2phc2sys0-21swapper/309:41:323
2649091131,2phc2sys0-21swapper/308:04:073
2649091130,2phc2sys0-21swapper/312:01:033
2649091130,2phc2sys0-21swapper/311:39:583
2649091130,2phc2sys0-21swapper/311:31:043
2649091130,2phc2sys0-21swapper/310:35:573
2649091130,2phc2sys0-21swapper/310:25:433
2649091130,2phc2sys0-21swapper/310:02:273
2649091130,2phc2sys0-21swapper/309:37:273
2649091130,2phc2sys0-21swapper/309:29:243
2649091130,1phc2sys0-21swapper/308:17:013
2649091130,1phc2sys0-21swapper/308:05:303
24659899139,2cyclictest0-21swapper/211:10:172
246598991311,1cyclictest0-21swapper/211:30:432
246598991311,1cyclictest0-21swapper/210:30:352
246598991311,1cyclictest0-21swapper/208:20:412
246598991310,2cyclictest0-21swapper/210:23:372
246598991310,1cyclictest0-21swapper/212:31:162
246598991310,1cyclictest0-21swapper/208:30:382
246598991310,1cyclictest0-21swapper/208:25:382
24659899130,11cyclictest0-21swapper/210:40:332
24659699136,6cyclictest3851704-21mta-sts-daemon07:30:390
2649091122,2phc2sys0-21swapper/311:51:053
2649091121,2phc2sys0-21swapper/310:10:483
2649091121,2phc2sys0-21swapper/309:00:373
2649091121,2phc2sys0-21swapper/307:15:583
2649091120,2phc2sys0-21swapper/311:48:163
2649091120,2phc2sys0-21swapper/310:45:353
2649091120,2phc2sys0-21swapper/309:14:213
2649091120,1phc2sys0-21swapper/311:00:553
2649091120,1phc2sys0-21swapper/308:58:283
2649091120,1phc2sys0-21swapper/308:49:553
24659899129,2cyclictest0-21swapper/210:45:262
246598991210,1cyclictest0-21swapper/208:50:432
246598991210,1cyclictest0-21swapper/207:30:372
246598991210,1cyclictest0-21swapper/207:15:352
2649091112,2phc2sys0-21swapper/310:20:023
2649091111,2phc2sys0-21swapper/311:18:023
2649091111,2phc2sys0-21swapper/308:35:413
2649091110,3phc2sys0-21swapper/307:30:333
2649091110,2phc2sys0-21swapper/312:22:203
2649091110,2phc2sys0-21swapper/311:57:583
2649091110,2phc2sys0-21swapper/309:05:183
2649091110,2phc2sys0-21swapper/307:20:353
2649091110,1phc2sys0-21swapper/307:48:283
2405462111,5sleep30-21swapper/307:05:363
4747092100,4sleep30-21swapper/309:57:493
2649091101,3phc2sys0-21swapper/312:31:463
2649091101,2phc2sys0-21swapper/311:07:323
2649091100,2phc2sys0-21swapper/311:41:393
2649091100,2phc2sys0-21swapper/311:25:313
2649091100,2phc2sys0-21swapper/311:13:093
2649091100,2phc2sys0-21swapper/310:32:493
2649091100,2phc2sys0-21swapper/309:53:053
2649091100,2phc2sys0-21swapper/308:40:343
2649091100,2phc2sys0-21swapper/308:20:343
2649091100,2phc2sys0-21swapper/308:10:403
2649091100,2phc2sys0-21swapper/307:50:493
2649091100,1phc2sys0-21swapper/308:51:363
264909190,2phc2sys0-21swapper/308:30:443
264909190,2phc2sys0-21swapper/308:25:473
264909190,2phc2sys0-21swapper/307:40:353
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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