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2026-09-24 - 04:00
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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 Thu Sep 24, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7396422370,2sleep30-21swapper/323:04:163
7396422370,2sleep30-21swapper/323:04:163
10412421640,3sleep20-21swapper/223:19:312
330792840,2sleep30-21swapper/322:39:233
1339902320,1sleep20-21swapper/223:39:152
3900139992816,11cyclictest0-21swapper/023:23:510
3900139992716,10cyclictest4098291-21kthreadcore21:29:190
3900139992716,10cyclictest4098291-21kthreadcore21:29:190
2291152270,2sleep00-21swapper/000:30:490
390013999251,19cyclictest0-21swapper/022:34:170
390013999251,13cyclictest4176302-21apt-get22:13:550
390013999244,13cyclictest0-21swapper/000:08:500
390013999244,13cyclictest0-21swapper/000:08:500
3900139992416,6cyclictest677780-21systemd-journal21:20:000
3900139992413,7cyclictest3900138-21cyclictest21:34:170
390013999241,14cyclictest88810-21ssh23:13:530
390013999241,14cyclictest88810-21ssh23:13:530
390013999238,9cyclictest0-21swapper/000:13:530
3900139992310,9cyclictest4151234-21kthreadcore21:59:180
41787612220,3sleep30-21swapper/322:14:173
390013999221,5cyclictest4021001-21df20:39:100
3900139992215,6cyclictest122085-21idleruntime-cro23:30:010
3900139992213,8cyclictest4881-21kthreadcore22:24:170
390013999221,12cyclictest144783-21kthreadcore23:44:150
3900141992119,1cyclictest0-21swapper/222:34:172
390013999211,9cyclictest0-21swapper/000:21:460
3900139992114,6cyclictest24615-21JS14:54:060
3900139992112,8cyclictest24617-21JS14:54:060
3900140992017,2cyclictest70-21kcompactd000:39:121
390013999207,8cyclictest0-21swapper/023:39:240
390013999207,8cyclictest0-21swapper/022:48:570
390013999207,8cyclictest0-21swapper/022:48:570
390013999207,5cyclictest191rcu_preempt22:43:530
390013999201,8cyclictest4070468-21telnet21:14:100
3900139992014,5cyclictest65471-21kthreadcore22:59:180
3900139992013,6cyclictest24616-21JS14:54:060
3900140991916,2cyclictest24648-21gmain22:41:151
3900140991915,3cyclictest4049409-21kthreadcore20:59:141
390014099191,3cyclictest4047436-21latency_hist20:55:011
3900140991913,4cyclictest4026923-21sort20:40:031
390013999198,7cyclictest171690-21kthreadcore23:59:170
390013999198,7cyclictest0-21swapper/022:50:060
390013999197,8cyclictest0-21swapper/023:34:230
390013999197,8cyclictest0-21swapper/023:05:010
390013999197,8cyclictest0-21swapper/023:05:010
3900139991914,4cyclictest4132168-21aten_repower_en21:49:040
3900139991914,4cyclictest29984-21sh22:39:170
3900139991914,4cyclictest240248-21gltestperf00:39:130
390013999191,17cyclictest4123212-21ssh21:43:530
390013999191,13cyclictest4068157-21wc21:10:000
390013999190,8cyclictest4093778-21processes21:24:200
390013999190,13cyclictest4041736-21df_inode20:54:120
1237042190,1sleep10-21swapper/123:32:531
3900141991815,1cyclictest0-21swapper/220:39:102
3900140991815,2cyclictest24617-21JS14:54:061
390014099180,13cyclictest0-21swapper/119:10:021
390013999187,7cyclictest0-21swapper/023:09:230
390013999186,7cyclictest4173449-21mailstats22:09:260
3900139991813,4cyclictest4121068-21munin-plugin-st21:40:010
3900139991813,4cyclictest3971419-21cron20:00:010
3900139991812,5cyclictest4006950-21cpuspeed_turbos20:29:130
3900139991812,5cyclictest3944910-21cpuspeed_turbos19:44:130
390013999181,12cyclictest1-21systemd23:20:030
3900139991810,7cyclictest10062-21irqrtprio22:29:150
390013999180,13cyclictest3930734-21/usr/sbin/munin19:34:230
3900140991714,2cyclictest24610-21gmain00:09:211
3900140991714,2cyclictest24610-21gmain00:09:211
3900140991711,2cyclictest82050irq/121-eno121:29:161
3900140991711,2cyclictest82050irq/121-eno121:29:161
3900140991710,3cyclictest4093082-21kthreadcore21:24:181
390013999175,8cyclictest0-21swapper/021:54:140
390013999175,8cyclictest0-21swapper/019:54:070
390013999174,8cyclictest1188-21runrttasks00:19:500
390013999174,7cyclictest0-21swapper/022:18:520
3900139991711,5cyclictest4039446-21kthreadcore20:49:190
3900139991711,5cyclictest4028062-21gltestperf20:44:110
3900139991711,5cyclictest3983697-21kthreadcore20:09:160
3900139991711,5cyclictest3952780-21kthreadcore19:49:160
3900139991711,5cyclictest3924912-21irqcore19:29:160
3900139991711,5cyclictest3901245-21sh19:14:120
3900139991711,5cyclictest159766-21aten_repower_en23:53:570
390013999171,11cyclictest4054997-21apt-get21:03:550
390013999171,11cyclictest3916972-21taskset19:23:520
2213291171,7phc2sys0-21swapper/323:58:533
390014199165,8cyclictest510762sleep222:49:492
390014199165,8cyclictest510762sleep222:49:492
390014199164,7cyclictest41940892sleep222:24:042
3900141991612,1cyclictest0-21swapper/223:23:512
390014099169,3cyclictest6760-21sh22:25:011
390014099164,7cyclictest4068168-21awk21:10:001
3900140991613,2cyclictest798-21mta-sts-daemon00:25:011
3900140991613,2cyclictest677780-21systemd-journal19:35:001
3900140991613,2cyclictest24472-21rtkit-daemon19:25:551
3900140991612,3cyclictest89215-21cpuspeed_turbos23:14:101
3900140991612,3cyclictest89215-21cpuspeed_turbos23:14:101
3900140991612,3cyclictest78088-21kworker/u16:3+nfsiod23:18:421
3900140991612,3cyclictest4039250-21kthreadcore20:49:191
3900140991612,3cyclictest3900138-21cyclictest19:50:011
3900140991612,3cyclictest27454-21sh22:39:121
3900140991612,3cyclictest23836-21timerandwakeup22:34:221
3900140991610,2cyclictest204343-21cpuspeed_turbos00:19:101
390014099160,3cyclictest4149159-21ssh21:57:381
390013999166,6cyclictest0-21swapper/000:03:140
390013999165,4cyclictest0-21swapper/022:02:340
390013999164,8cyclictest4015528-21cut20:34:130
3900139991611,4cyclictest24472-21rtkit-daemon20:15:450
390013999161,10cyclictest3985928-21apt-get20:13:540
390013999161,10cyclictest0-21swapper/020:22:240
3900139991610,5cyclictest3977301-21kthreadcore20:04:210
3900139991610,5cyclictest3911263-21irqrtprio19:19:140
2213291161,2phc2sys0-21swapper/323:37:393
2213291160,3phc2sys0-21swapper/300:14:013
2213291160,2phc2sys0-21swapper/323:20:253
2213291160,2phc2sys0-21swapper/322:57:043
2213291160,2phc2sys0-21swapper/300:32:103
390014199156,7cyclictest0-21swapper/200:04:222
390014199151,6cyclictest0-21swapper/221:32:592
3900141991511,2cyclictest0-21swapper/221:29:192
3900141991511,2cyclictest0-21swapper/221:29:192
390014199150,13cyclictest0-21swapper/223:10:582
390014199150,13cyclictest0-21swapper/223:10:582
390014099158,6cyclictest24615-21JS14:54:061
390014099156,3cyclictest74921-21kthreadcore23:04:171
390014099156,3cyclictest74921-21kthreadcore23:04:171
390014099156,3cyclictest4185734-21cstates22:19:101
3900140991512,2cyclictest47683-21kthreadcore22:49:201
3900140991512,2cyclictest47683-21kthreadcore22:49:201
3900140991512,2cyclictest3907093-21munin-node00:01:011
3900140991512,2cyclictest3900138-21cyclictest23:43:041
3900140991512,2cyclictest201909-21systemd-run00:15:011
3900140991512,2cyclictest121091-21cut23:29:181
3900140991511,3cyclictest83539-21kthreadcore23:09:201
3900140991511,3cyclictest4178067-21kthreadcore22:14:171
3900140991511,3cyclictest4160838-21kthreadcore22:04:151
3900140991511,3cyclictest4121240-21kworker/u16:3+nfsiod22:27:311
3900140991511,3cyclictest4110051-21kthreadcore21:34:171
3900140991511,3cyclictest4073921-21kthreadcore21:14:171
3900140991511,3cyclictest4057778-21kthreadcore21:04:171
3900140991511,3cyclictest4033249-21switchtime20:44:201
3900140991511,3cyclictest4011499-21kthreadcore20:29:201
3900140991511,3cyclictest3994166-21kthreadcore20:19:151
3900140991511,3cyclictest3990176-21kthreadcore20:14:171
3900140991511,3cyclictest3970094-21kthreadcore19:59:191
3900140991511,3cyclictest3945800-21irqrtprio19:44:171
3900140991511,3cyclictest3938197-21sh19:39:121
3900140991511,3cyclictest24188-21kworker/u16:0+nfsiod23:24:241
3900140991511,3cyclictest24188-21kworker/u16:0+nfsiod22:55:241
3900140991511,3cyclictest24188-21kworker/u16:0+nfsiod22:50:101
3900140991511,3cyclictest122269-21kworker/u16:2+nfsiod23:58:201
390013999152,8cyclictest0-21swapper/020:58:500
2213291151,6phc2sys0-21swapper/321:58:553
2213291150,6phc2sys0-21swapper/322:20:393
2213291150,3phc2sys0-21swapper/322:46:413
2213291150,3phc2sys0-21swapper/322:46:413
2213291150,2phc2sys0-21swapper/323:09:563
41744522140,2sleep2441rcuc/222:10:032
390014199148,1cyclictest0-21swapper/222:27:592
390014199147,3cyclictest0-21swapper/219:33:572
390014199145,7cyclictest1573042sleep223:49:382
390014199145,6cyclictest1229142sleep223:31:102
390014199144,7cyclictest2209322sleep200:27:232
3900141991412,1cyclictest0-21swapper/221:20:002
3900141991411,1cyclictest0-21swapper/223:30:012
3900141991411,1cyclictest0-21swapper/220:13:542
390014199140,11cyclictest4068753-21chrt21:10:342
390014099147,2cyclictest3999260-21kworker/u16:0-rpciod21:39:481
390014099144,4cyclictest4005940-21sshd-auth20:24:241
3900140991411,2cyclictest3907038-21latency_hist19:15:011
3900140991411,2cyclictest24617-21JS14:54:061
3900140991411,2cyclictest24610-21gmain23:35:371
3900140991410,3cyclictest4167658-21aten_repower_fr22:09:091
3900140991410,3cyclictest4121240-21kworker/u16:3+nfsiod21:52:421
3900140991410,3cyclictest4014523-21irqcore20:34:121
3900140991410,3cyclictest3974196-21kthreadcore20:04:191
3900140991410,3cyclictest3920000-21kthreadcore19:24:171
3900140991410,3cyclictest161086-21kthreadcore23:54:151
3900140991410,3cyclictest152227-21kthreadcore23:49:161
390013999141,2cyclictest3900320-21munin-run19:10:030
2213291142,4phc2sys0-21swapper/322:03:533
2213291141,2phc2sys0-21swapper/321:49:423
2213291140,2phc2sys0-21swapper/323:41:373
2213291140,2phc2sys0-21swapper/321:36:563
2213291140,2phc2sys0-21swapper/319:34:213
2213291140,1phc2sys0-21swapper/322:19:103
390014199139,2cyclictest0-21swapper/223:41:412
390014199139,2cyclictest0-21swapper/221:20:252
390014199139,2cyclictest0-21swapper/220:08:472
390014199139,1cyclictest0-21swapper/223:50:432
390014199136,4cyclictest0-21swapper/223:03:542
390014199136,4cyclictest0-21swapper/223:03:542
390014199136,4cyclictest0-21swapper/222:05:012
390014199135,6cyclictest266142sleep222:38:392
390014199132,8cyclictest40137292sleep220:34:082
390014199131,6cyclictest0-21swapper/221:48:562
3900141991310,1cyclictest0-21swapper/222:56:542
3900141991310,1cyclictest0-21swapper/222:14:222
3900141991310,1cyclictest0-21swapper/221:44:432
3900141991310,1cyclictest0-21swapper/220:42:142
390014099136,2cyclictest82050irq/121-eno100:29:131
390014099135,7cyclictest24617-21JS14:54:061
3900140991310,2cyclictest4079810-21gltestperf21:19:131
3900140991310,2cyclictest4068130-21diskmemload21:49:191
2213291130,3phc2sys0-21swapper/322:53:513
2213291130,2phc2sys0-21swapper/321:42:083
2213291130,2phc2sys0-21swapper/319:29:193
2213291130,2phc2sys0-21swapper/300:19:403
40686592120,2sleep30-21swapper/321:10:243
390014199129,1cyclictest0-21swapper/222:53:322
390014199129,1cyclictest0-21swapper/220:25:022
390014199129,1cyclictest0-21swapper/219:35:092
390014199129,1cyclictest0-21swapper/219:29:182
390014199129,1cyclictest0-21swapper/219:15:022
390014199129,1cyclictest0-21swapper/200:10:332
390014199127,2cyclictest0-21swapper/219:18:542
390014199126,3cyclictest0-21swapper/221:00:002
390014199125,5cyclictest789602sleep223:06:532
390014199125,5cyclictest4184370-21chrt22:17:172
390014199125,5cyclictest2389912sleep200:38:052
390014199124,6cyclictest1750112sleep223:59:372
390014199124,2cyclictest41411712sleep221:54:092
390014199123,7cyclictest3999094-21turbostat20:20:012
390014199122,6cyclictest0-21swapper/221:03:552
390014199122,5cyclictest0-21swapper/200:33:552
3900141991210,1cyclictest0-21swapper/221:40:012
3900141991210,1cyclictest0-21swapper/219:58:382
390014099123,8cyclictest4121793-1ssh21:40:501
2213291124,2phc2sys0-21swapper/323:46:043
2213291123,2phc2sys0-21swapper/320:13:533
2213291121,4phc2sys0-21swapper/320:18:533
2213291120,3phc2sys0-21swapper/323:13:523
2213291120,3phc2sys0-21swapper/323:13:523
2213291120,2phc2sys0-21swapper/319:10:173
2213291120,2phc2sys0-21swapper/300:39:223
2213291120,1phc2sys0-21swapper/321:00:153
390014199119,1cyclictest0-21swapper/219:55:022
390014199118,1cyclictest0-21swapper/222:44:112
390014199118,1cyclictest0-21swapper/221:09:552
390014199118,1cyclictest0-21swapper/219:44:132
390014199117,2cyclictest0-21swapper/219:24:152
390014199116,2cyclictest0-21swapper/222:00:012
390014199114,5cyclictest39512302sleep219:46:182
390014199114,4cyclictest0-21swapper/200:05:292
390014199114,4cyclictest0-21swapper/200:05:292
390014199112,6cyclictest0-21swapper/200:18:532
390014199112,4cyclictest0-21swapper/220:28:562
390014199110,6cyclictest0-21swapper/220:04:232
2213291113,2phc2sys0-21swapper/322:09:543
2213291113,2phc2sys0-21swapper/300:26:283
2213291111,3phc2sys0-21swapper/300:00:593
2213291111,2phc2sys0-21swapper/320:53:543
2213291110,2phc2sys0-21swapper/323:29:233
2213291110,2phc2sys0-21swapper/321:52:503
2213291110,2phc2sys0-21swapper/320:08:523
2213291110,2phc2sys0-21swapper/319:58:543
2213291110,2phc2sys0-21swapper/300:22:443
2213291110,1phc2sys0-21swapper/322:40:083
2213291110,1phc2sys0-21swapper/320:41:353
390014199107,1cyclictest0-21swapper/220:50:092
390014199107,1cyclictest0-21swapper/200:20:482
390014199106,2cyclictest0-21swapper/220:48:232
2213291102,2phc2sys0-21swapper/323:50:533
2213291101,2phc2sys0-21swapper/320:56:313
2213291101,2phc2sys0-21swapper/320:04:073
2213291100,2phc2sys0-21swapper/323:31:373
2213291100,2phc2sys0-21swapper/323:15:403
2213291100,2phc2sys0-21swapper/322:31:233
2213291100,2phc2sys0-21swapper/322:28:103
2213291100,2phc2sys0-21swapper/321:31:023
2213291100,2phc2sys0-21swapper/321:26:453
2213291100,2phc2sys0-21swapper/321:26:453
2213291100,2phc2sys0-21swapper/321:20:153
2213291100,2phc2sys0-21swapper/321:18:073
2213291100,2phc2sys0-21swapper/319:53:533
2213291100,2phc2sys0-21swapper/319:48:193
2213291100,2phc2sys0-21swapper/319:38:543
2213291100,2phc2sys0-21swapper/319:22:393
2213291100,1phc2sys0-21swapper/300:08:123
2213291100,1phc2sys0-21swapper/300:08:123
39001419997,1cyclictest0-21swapper/219:10:032
221329192,2phc2sys0-21swapper/319:43:393
221329192,2phc2sys0-21swapper/319:15:183
221329191,2phc2sys0-21swapper/320:27:563
221329190,2phc2sys0-21swapper/321:06:003
221329190,2phc2sys0-21swapper/320:49:123
221329190,2phc2sys0-21swapper/320:36:143
221329190,1phc2sys0-21swapper/320:33:493
221329180,2phc2sys0-21swapper/319:05:243
221329180,1phc2sys0-21swapper/320:20:183
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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