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2026-01-08 - 14:42
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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 rackdslot3.osadl.org (updated Thu Jan 08, 2026 00:45:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491230164,22phc2sys0-21swapper/319:06:023
184442203171,21sleep20-21swapper/219:09:322
182792202168,23sleep10-21swapper/119:07:211
182782201168,22sleep00-21swapper/019:07:210
2554421330,4sleep31877899cyclictest22:45:153
265962630,4sleep1231rcuc/123:55:001
265962630,4sleep1231rcuc/123:55:001
18778996033,3cyclictest41-21ksoftirqd/300:40:013
18778995520,8cyclictest41-21ksoftirqd/322:05:013
18778995519,8cyclictest41-21ksoftirqd/322:10:003
139391550,1ptp4l401ktimersoftd/322:21:303
18778995324,6cyclictest41-21ksoftirqd/322:20:013
18778995322,3cyclictest41-21ksoftirqd/321:15:003
18778995122,4cyclictest41-21ksoftirqd/323:45:003
18778995119,7cyclictest41-21ksoftirqd/320:55:003
18778995021,4cyclictest41-21ksoftirqd/322:25:263
18778995019,8cyclictest41-21ksoftirqd/300:20:003
18778995018,6cyclictest41-21ksoftirqd/319:45:243
1877899497,9cyclictest41-21ksoftirqd/320:40:253
18778994922,7cyclictest41-21ksoftirqd/321:30:213
18778994920,4cyclictest41-21ksoftirqd/300:30:273
18778994919,4cyclictest41-21ksoftirqd/321:15:223
1877899486,8cyclictest41-21ksoftirqd/320:25:123
1877899483,3cyclictest121rcu_preempt19:25:003
18778994811,4cyclictest41-21ksoftirqd/323:48:553
1877899472,7cyclictest41-21ksoftirqd/321:50:123
1877899472,3cyclictest41-21ksoftirqd/321:45:183
18778994720,7cyclictest41-21ksoftirqd/321:05:243
18778994718,4cyclictest41-21ksoftirqd/300:09:593
18778994717,4cyclictest41-21ksoftirqd/323:05:273
18778994717,4cyclictest41-21ksoftirqd/319:10:133
18778994716,7cyclictest41-21ksoftirqd/320:45:183
18778994715,8cyclictest41-21ksoftirqd/322:15:003
278462460,1sleep127849-21df_abs22:50:141
18778994621,7cyclictest41-21ksoftirqd/319:35:003
18778994620,4cyclictest41-21ksoftirqd/323:30:143
18778994616,3cyclictest41-21ksoftirqd/321:00:143
18778994615,8cyclictest41-21ksoftirqd/300:10:143
18778994615,6cyclictest41-21ksoftirqd/323:00:003
18778994613,3cyclictest121rcu_preempt00:00:143
18778994610,9cyclictest41-21ksoftirqd/300:20:223
18778994610,9cyclictest41-21ksoftirqd/300:20:223
57898450,26rtkit-daemon8789-21/usr/sbin/munin23:15:251
1877899456,10cyclictest41-21ksoftirqd/319:25:173
1877899452,3cyclictest121rcu_preempt19:40:003
18778994516,7cyclictest41-21ksoftirqd/320:30:213
18778994516,4cyclictest41-21ksoftirqd/323:15:163
18778994515,3cyclictest41-21ksoftirqd/320:55:233
18778994513,3cyclictest41-21ksoftirqd/323:30:003
18778994512,10cyclictest41-21ksoftirqd/322:35:013
18778994511,4cyclictest41-21ksoftirqd/300:00:003
18778994511,3cyclictest41-21ksoftirqd/322:30:223
18778994511,10cyclictest41-21ksoftirqd/320:35:163
18778994510,3cyclictest41-21ksoftirqd/322:50:233
1877899449,8cyclictest41-21ksoftirqd/320:10:173
1877899449,8cyclictest41-21ksoftirqd/320:10:173
1877899448,8cyclictest41-21ksoftirqd/320:15:243
139391440,0ptp4l401ktimersoftd/323:20:263
139391440,0ptp4l401ktimersoftd/323:11:233
139391440,0ptp4l401ktimersoftd/323:00:233
1877899438,8cyclictest41-21ksoftirqd/321:25:213
139391430,0ptp4l401ktimersoftd/320:05:153
1877899428,9cyclictest41-21ksoftirqd/320:00:263
18778994230,9cyclictest41-21ksoftirqd/319:40:243
18778994230,9cyclictest41-21ksoftirqd/319:40:243
18778994219,6cyclictest41-21ksoftirqd/321:44:593
18778994214,3cyclictest41-21ksoftirqd/320:20:183
1877899414,9cyclictest41-21ksoftirqd/319:50:253
18778994113,4cyclictest41-21ksoftirqd/321:24:083
18778994110,9cyclictest41-21ksoftirqd/319:55:223
18777994035,3cyclictest33-21ksoftirqd/220:39:592
18778993933,3cyclictest41-21ksoftirqd/319:15:263
18776993933,3cyclictest25-21ksoftirqd/100:40:001
18778993812,4cyclictest41-21ksoftirqd/323:55:003
18778993812,4cyclictest41-21ksoftirqd/323:55:003
18778993810,11cyclictest41-21ksoftirqd/323:35:233
1877899380,2cyclictest121rcu_preempt21:35:143
18775993833,3cyclictest3224-21turbostat22:00:010
57898370,1rtkit-daemon0-21swapper/100:17:301
18777993724,11cyclictest33-21ksoftirqd/200:35:002
18776993731,4cyclictest25-21ksoftirqd/122:09:501
18776993731,3cyclictest25-21ksoftirqd/123:25:011
18775993732,3cyclictest9-21ksoftirqd/021:19:590
1877899360,2cyclictest121rcu_preempt00:30:003
18777993631,3cyclictest33-21ksoftirqd/221:55:012
18777993630,4cyclictest33-21ksoftirqd/222:59:182
18777993630,4cyclictest33-21ksoftirqd/219:46:382
18777993630,4cyclictest33-21ksoftirqd/200:25:502
18777993629,5cyclictest33-21ksoftirqd/223:56:572
18776993630,4cyclictest25-21ksoftirqd/119:58:041
18776993630,3cyclictest25-21ksoftirqd/119:30:481
18776993629,4cyclictest25-21ksoftirqd/119:21:591
18775993630,4cyclictest9-21ksoftirqd/021:31:100
18778993530,3cyclictest41-21ksoftirqd/322:40:253
18777993530,3cyclictest33-21ksoftirqd/222:24:172
18777993529,4cyclictest33-21ksoftirqd/221:48:292
18777993529,4cyclictest33-21ksoftirqd/221:26:422
18776993530,3cyclictest25-21ksoftirqd/121:25:181
18776993529,4cyclictest25-21ksoftirqd/123:58:571
18776993529,4cyclictest25-21ksoftirqd/122:04:451
18776993529,4cyclictest25-21ksoftirqd/121:57:311
18776993529,4cyclictest25-21ksoftirqd/121:53:491
18776993529,4cyclictest25-21ksoftirqd/120:35:271
18775993530,3cyclictest9-21ksoftirqd/000:18:300
1877899341,8cyclictest41-21ksoftirqd/321:55:203
18777993429,3cyclictest33-21ksoftirqd/223:50:112
18777993429,3cyclictest33-21ksoftirqd/223:50:102
18777993429,3cyclictest33-21ksoftirqd/222:48:182
18777993429,3cyclictest33-21ksoftirqd/222:36:352
18777993428,4cyclictest33-21ksoftirqd/223:12:492
18777993428,4cyclictest33-21ksoftirqd/223:07:152
18777993428,4cyclictest33-21ksoftirqd/220:27:012
18777993428,4cyclictest33-21ksoftirqd/220:21:232
18777993428,4cyclictest33-21ksoftirqd/220:13:142
18777993428,4cyclictest33-21ksoftirqd/220:13:142
18776993429,3cyclictest25-21ksoftirqd/123:14:451
18776993428,4cyclictest25-21ksoftirqd/123:34:461
18776993428,4cyclictest25-21ksoftirqd/121:00:121
18776993428,4cyclictest25-21ksoftirqd/120:59:331
18776993428,4cyclictest25-21ksoftirqd/120:08:031
18775993429,3cyclictest9-21ksoftirqd/020:25:100
18775993428,4cyclictest9-21ksoftirqd/023:01:080
18775993428,4cyclictest9-21ksoftirqd/019:47:480
18775993428,4cyclictest9-21ksoftirqd/019:42:070
18775993428,4cyclictest9-21ksoftirqd/019:42:060
18777993328,3cyclictest33-21ksoftirqd/223:50:012
18777993327,4cyclictest33-21ksoftirqd/223:43:392
18777993327,4cyclictest33-21ksoftirqd/223:21:112
18777993327,4cyclictest33-21ksoftirqd/223:01:502
18777993327,4cyclictest33-21ksoftirqd/220:53:212
18777993327,4cyclictest33-21ksoftirqd/220:46:432
18777993327,4cyclictest33-21ksoftirqd/219:38:272
18777993327,3cyclictest33-21ksoftirqd/219:15:042
18776993328,3cyclictest25-21ksoftirqd/119:28:321
18776993327,4cyclictest25-21ksoftirqd/123:38:191
18776993327,4cyclictest25-21ksoftirqd/123:05:411
18776993327,4cyclictest25-21ksoftirqd/121:44:101
18776993327,4cyclictest25-21ksoftirqd/121:30:511
18776993327,4cyclictest25-21ksoftirqd/100:13:571
18775993328,3cyclictest9-21ksoftirqd/021:40:150
18775993328,3cyclictest9-21ksoftirqd/019:14:550
18775993327,4cyclictest9-21ksoftirqd/022:59:240
18775993327,4cyclictest9-21ksoftirqd/021:45:380
18775993327,4cyclictest9-21ksoftirqd/021:08:080
18775993327,4cyclictest9-21ksoftirqd/020:46:250
18775993327,4cyclictest9-21ksoftirqd/020:20:100
18775993327,4cyclictest9-21ksoftirqd/020:16:010
18775993327,4cyclictest9-21ksoftirqd/000:32:100
18775993327,4cyclictest9-21ksoftirqd/000:05:540
18777993227,3cyclictest33-21ksoftirqd/222:30:122
18777993227,3cyclictest33-21ksoftirqd/222:15:092
18777993227,3cyclictest33-21ksoftirqd/220:32:262
18777993227,3cyclictest33-21ksoftirqd/200:13:082
18777993226,4cyclictest33-21ksoftirqd/223:39:492
18777993226,4cyclictest33-21ksoftirqd/223:18:542
18777993226,4cyclictest33-21ksoftirqd/222:25:282
18777993226,4cyclictest33-21ksoftirqd/221:31:082
18777993226,4cyclictest33-21ksoftirqd/221:25:002
18777993226,4cyclictest33-21ksoftirqd/221:01:482
18777993226,4cyclictest33-21ksoftirqd/219:58:092
18776993227,3cyclictest25-21ksoftirqd/121:25:001
18776993226,4cyclictest25-21ksoftirqd/123:27:521
18776993226,4cyclictest25-21ksoftirqd/122:31:081
18776993226,4cyclictest25-21ksoftirqd/119:42:361
18776993226,4cyclictest25-21ksoftirqd/119:42:361
18776993226,3cyclictest25-21ksoftirqd/122:17:481
18775993227,3cyclictest9-21ksoftirqd/023:48:020
18775993227,3cyclictest9-21ksoftirqd/021:28:120
18775993227,3cyclictest9-21ksoftirqd/019:18:400
18775993226,4cyclictest9-21ksoftirqd/000:39:120
18777993126,3cyclictest33-21ksoftirqd/222:04:412
18777993126,3cyclictest33-21ksoftirqd/220:55:442
18777993125,4cyclictest33-21ksoftirqd/221:56:472
18777993125,4cyclictest33-21ksoftirqd/220:42:142
18777993125,4cyclictest33-21ksoftirqd/220:18:232
18777993125,4cyclictest33-21ksoftirqd/219:23:512
18776993126,3cyclictest25-21ksoftirqd/123:01:471
18776993126,3cyclictest25-21ksoftirqd/120:42:121
18776993126,3cyclictest25-21ksoftirqd/120:15:011
18776993126,3cyclictest25-21ksoftirqd/100:04:431
18776993125,4cyclictest25-21ksoftirqd/123:46:291
18776993125,4cyclictest25-21ksoftirqd/122:27:151
18776993125,4cyclictest25-21ksoftirqd/122:22:181
18776993125,4cyclictest25-21ksoftirqd/119:54:351
18776993125,4cyclictest25-21ksoftirqd/100:27:251
18775993126,3cyclictest9-21ksoftirqd/023:41:590
18775993126,3cyclictest9-21ksoftirqd/022:35:010
18775993125,4cyclictest9-21ksoftirqd/023:59:400
18775993125,4cyclictest9-21ksoftirqd/023:27:110
18775993125,4cyclictest9-21ksoftirqd/020:01:320
18775993125,3cyclictest9-21ksoftirqd/000:00:080
18775993124,4cyclictest9-21ksoftirqd/021:35:480
57898300,2rtkit-daemon0-21swapper/122:14:231
18777993025,3cyclictest33-21ksoftirqd/200:36:452
18777993024,4cyclictest33-21ksoftirqd/221:36:142
18777993024,4cyclictest33-21ksoftirqd/221:17:192
18777993024,4cyclictest33-21ksoftirqd/220:05:072
18777993024,4cyclictest33-21ksoftirqd/219:13:122
18777993023,5cyclictest33-21ksoftirqd/219:26:362
18776993026,3cyclictest25-21ksoftirqd/119:35:021
18776993025,3cyclictest25-21ksoftirqd/121:10:181
18776993025,3cyclictest25-21ksoftirqd/100:20:171
18776993025,3cyclictest25-21ksoftirqd/100:20:171
18776993024,4cyclictest25-21ksoftirqd/120:45:381
18776993024,4cyclictest25-21ksoftirqd/120:29:421
18775993025,3cyclictest9-21ksoftirqd/022:05:190
18775993025,3cyclictest9-21ksoftirqd/020:59:520
18775993025,3cyclictest9-21ksoftirqd/020:34:310
18775993025,3cyclictest9-21ksoftirqd/019:35:120
18775993025,3cyclictest9-21ksoftirqd/019:23:250
18775993024,4cyclictest9-21ksoftirqd/023:53:390
18775993024,4cyclictest9-21ksoftirqd/023:53:380
18775993024,4cyclictest9-21ksoftirqd/021:01:540
18775993024,4cyclictest9-21ksoftirqd/019:33:000
18777992924,3cyclictest33-21ksoftirqd/222:54:552
18777992924,3cyclictest33-21ksoftirqd/222:44:512
18777992924,3cyclictest33-21ksoftirqd/219:40:462
18777992924,3cyclictest33-21ksoftirqd/219:40:462
18777992924,3cyclictest33-21ksoftirqd/219:32:062
18777992924,3cyclictest33-21ksoftirqd/200:08:012
18777992923,4cyclictest33-21ksoftirqd/222:05:452
18776992924,3cyclictest25-21ksoftirqd/119:12:381
18776992923,4cyclictest25-21ksoftirqd/123:41:041
18776992923,4cyclictest25-21ksoftirqd/122:55:471
18776992923,4cyclictest25-21ksoftirqd/122:40:061
18776992923,4cyclictest25-21ksoftirqd/121:36:081
18776992923,4cyclictest25-21ksoftirqd/120:10:281
18776992923,4cyclictest25-21ksoftirqd/120:10:281
18776992923,4cyclictest25-21ksoftirqd/119:48:381
18776992923,4cyclictest25-21ksoftirqd/100:34:351
18775992924,3cyclictest9-21ksoftirqd/023:30:120
18775992924,3cyclictest9-21ksoftirqd/020:50:590
18775992924,3cyclictest9-21ksoftirqd/020:40:040
18775992923,4cyclictest9-21ksoftirqd/023:35:060
18775992923,4cyclictest9-21ksoftirqd/022:28:550
18775992923,4cyclictest9-21ksoftirqd/021:21:180
18775992923,4cyclictest9-21ksoftirqd/021:11:370
18777992823,3cyclictest33-21ksoftirqd/220:02:502
18777992823,3cyclictest33-21ksoftirqd/200:23:552
18777992823,3cyclictest33-21ksoftirqd/200:23:552
18776992823,3cyclictest25-21ksoftirqd/120:32:311
18776992823,3cyclictest25-21ksoftirqd/119:17:591
18776992822,4cyclictest25-21ksoftirqd/120:01:441
18775992823,3cyclictest9-21ksoftirqd/022:24:330
18775992823,3cyclictest9-21ksoftirqd/022:19:590
18775992823,3cyclictest9-21ksoftirqd/020:11:190
18775992823,3cyclictest9-21ksoftirqd/020:11:190
18775992822,4cyclictest9-21ksoftirqd/022:38:180
18775992822,4cyclictest9-21ksoftirqd/019:25:050
18775992822,3cyclictest9-21ksoftirqd/023:24:300
18777992723,2cyclictest33-21ksoftirqd/221:08:122
18777992721,4cyclictest33-21ksoftirqd/221:11:592
18776992722,3cyclictest25-21ksoftirqd/122:36:201
18776992722,3cyclictest25-21ksoftirqd/121:46:071
18776992722,3cyclictest25-21ksoftirqd/121:19:161
18776992722,3cyclictest25-21ksoftirqd/120:55:011
18776992722,3cyclictest25-21ksoftirqd/100:05:261
18776992721,4cyclictest25-21ksoftirqd/122:48:141
18775992722,3cyclictest9-21ksoftirqd/023:10:340
18775992722,3cyclictest9-21ksoftirqd/020:07:050
18775992722,3cyclictest9-21ksoftirqd/019:56:520
18775992721,4cyclictest9-21ksoftirqd/022:45:470
18775992721,4cyclictest9-21ksoftirqd/000:11:170
18777992621,3cyclictest33-21ksoftirqd/223:31:292
18777992621,3cyclictest33-21ksoftirqd/200:18:182
18777992620,4cyclictest33-21ksoftirqd/222:11:232
18777992620,4cyclictest14396-21cron23:30:002
18775992621,3cyclictest9-21ksoftirqd/022:50:100
18775992620,4cyclictest9-21ksoftirqd/022:42:350
18775992620,4cyclictest9-21ksoftirqd/019:52:060
18777992520,3cyclictest33-21ksoftirqd/200:00:472
18775992520,3cyclictest9-21ksoftirqd/020:35:470
18775992520,3cyclictest9-21ksoftirqd/000:28:370
18775992519,4cyclictest9-21ksoftirqd/000:22:280
18775992519,4cyclictest9-21ksoftirqd/000:22:280
18777992419,3cyclictest33-21ksoftirqd/221:40:112
18776992420,3cyclictest25-21ksoftirqd/120:25:011
18776992319,3cyclictest25-21ksoftirqd/121:05:261
18775992318,3cyclictest207-21systemd-journal22:05:000
18775992317,4cyclictest9-21ksoftirqd/023:06:530
18775992218,2cyclictest9-21ksoftirqd/022:10:130
18775992217,3cyclictest9-21ksoftirqd/023:15:440
18777992014,3cyclictest8107-21latency_hist19:55:012
18775992015,3cyclictest9-21ksoftirqd/021:50:290
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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