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2026-07-04 - 07:28
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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 rackdslot1.osadl.org (updated Sat Jul 04, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1541022460,6sleep10-21swapper/119:05:181
1541022460,6sleep10-21swapper/119:05:181
3076121620,6sleep01712299cyclictest00:15:180
1981921440,6sleep31712599cyclictest19:15:153
241542650,4sleep20-21swapper/222:50:242
17122996328,6cyclictest9-21ksoftirqd/023:50:180
17122996233,4cyclictest9-21ksoftirqd/023:25:120
17122996229,6cyclictest9-21ksoftirqd/019:20:000
17122996131,5cyclictest9-21ksoftirqd/022:25:150
17122996129,4cyclictest9-21ksoftirqd/023:15:280
134491610,4ptp4l0-21swapper/220:49:442
17122996034,3cyclictest9-21ksoftirqd/000:13:120
17122996030,7cyclictest9-21ksoftirqd/021:05:280
17122996026,4cyclictest9-21ksoftirqd/022:56:410
103142600,4sleep210317-21sendmail_mailqu23:30:242
17122995932,4cyclictest9-21ksoftirqd/020:15:490
17122995929,5cyclictest9-21ksoftirqd/023:40:320
134491590,6ptp4l25-21ksoftirqd/123:48:391
17122995830,6cyclictest9-21ksoftirqd/021:22:570
17122995829,3cyclictest9-21ksoftirqd/020:00:000
17122995818,11cyclictest9-21ksoftirqd/020:30:120
134491580,4ptp4l0-21swapper/120:05:211
134491580,4ptp4l0-21swapper/119:31:281
134491580,3ptp4l25413-21ls20:35:213
1712399577,48cyclictest3926-21kworker/1:023:50:491
17122995730,4cyclictest9-21ksoftirqd/019:12:390
17122995729,4cyclictest9-21ksoftirqd/019:40:510
17122995726,4cyclictest9-21ksoftirqd/021:50:230
17122995726,4cyclictest9-21ksoftirqd/021:50:220
17122995725,7cyclictest9-21ksoftirqd/021:55:190
134491570,3ptp4l0-21swapper/123:40:261
1712399561,53cyclictest14091-21kworker/1:020:47:491
17122995629,3cyclictest9-21ksoftirqd/019:37:340
17122995624,9cyclictest9-21ksoftirqd/023:08:090
17122995621,6cyclictest9-21ksoftirqd/021:00:180
17122995619,4cyclictest9-21ksoftirqd/020:35:260
134491560,3ptp4l0-21swapper/119:50:241
134491560,3ptp4l0-21swapper/119:50:241
17124995519,6cyclictest33-21ksoftirqd/221:00:102
17122995529,6cyclictest9-21ksoftirqd/019:47:490
17122995527,6cyclictest9-21ksoftirqd/019:20:250
17122995526,8cyclictest9-21ksoftirqd/022:36:470
17124995420,6cyclictest33-21ksoftirqd/223:35:212
1712299547,5cyclictest24582-21uname21:45:000
17122995435,9cyclictest9-21ksoftirqd/019:35:000
17122995430,3cyclictest9-21ksoftirqd/020:49:390
134491540,4ptp4l0-21swapper/322:16:453
134491540,4ptp4l0-21swapper/222:10:182
31212530,5sleep30-21swapper/320:55:283
17124995322,4cyclictest33-21ksoftirqd/219:57:332
17124995319,4cyclictest33-21ksoftirqd/223:01:272
17122995324,6cyclictest9-21ksoftirqd/020:05:260
17122995320,6cyclictest9-21ksoftirqd/023:30:200
17124995228,4cyclictest33-21ksoftirqd/223:15:192
17124995218,5cyclictest33-21ksoftirqd/219:15:002
17122995224,6cyclictest9-21ksoftirqd/021:30:150
17122995223,8cyclictest9-21ksoftirqd/022:23:520
17122995218,5cyclictest9-21ksoftirqd/022:30:120
17122995218,4cyclictest9-21ksoftirqd/022:45:190
134491520,4ptp4l0-21swapper/223:09:342
17124995121,4cyclictest33-21ksoftirqd/219:34:132
17124995119,8cyclictest33-21ksoftirqd/221:50:072
17124995119,8cyclictest33-21ksoftirqd/221:50:062
17124995115,9cyclictest33-21ksoftirqd/200:19:592
1712399512,47cyclictest14091-21kworker/1:021:44:291
1712299516,3cyclictest6898-21tune2fs22:15:130
17122995123,4cyclictest9-21ksoftirqd/023:38:050
1712299510,5cyclictest1059-21awk20:55:000
134491510,4ptp4l0-21swapper/119:23:441
134491510,3ptp4l0-21swapper/321:49:163
134491510,3ptp4l0-21swapper/119:38:001
134491510,3ptp4l0-21swapper/020:12:080
134491510,3ptp4l0-21swapper/000:20:040
46198500,4rtkit-daemon0-21swapper/323:06:343
17124995021,8cyclictest33-21ksoftirqd/223:46:272
17124995019,3cyclictest33-21ksoftirqd/221:34:252
17124995016,5cyclictest33-21ksoftirqd/221:22:132
1712399502,46cyclictest0-21swapper/121:59:481
17122995020,4cyclictest9-21ksoftirqd/021:15:270
17122995015,6cyclictest9-21ksoftirqd/000:10:010
134691500,1getstats4210-1kworker/2:1H22:35:122
134491500,7ptp4l0-21swapper/319:30:323
134491500,4ptp4l0-21swapper/319:58:423
134491500,4ptp4l0-21swapper/222:29:302
134491500,4ptp4l0-21swapper/220:01:192
134491500,3ptp4l0-21swapper/320:20:183
134491500,3ptp4l0-21swapper/023:20:520
17124994936,11cyclictest33-21ksoftirqd/200:25:002
17124994923,7cyclictest33-21ksoftirqd/220:35:272
17124994921,8cyclictest33-21ksoftirqd/220:53:592
17124994920,10cyclictest33-21ksoftirqd/200:30:372
1712299495,3cyclictest9-21ksoftirqd/019:50:200
1712299495,3cyclictest9-21ksoftirqd/019:50:200
1712299495,2cyclictest16546-21phc2sys21:25:250
17122994919,5cyclictest9-21ksoftirqd/022:00:180
134491490,4ptp4l0-21swapper/019:07:160
134491490,4ptp4l0-21swapper/019:07:150
134491490,3ptp4l0-21swapper/321:05:153
1712499482,3cyclictest121rcu_preempt23:14:592
17124994820,6cyclictest33-21ksoftirqd/220:15:272
17124994819,7cyclictest33-21ksoftirqd/222:16:462
17124994819,4cyclictest33-21ksoftirqd/219:35:232
17124994815,4cyclictest33-21ksoftirqd/222:02:142
17124994814,10cyclictest33-21ksoftirqd/220:25:002
17124994812,6cyclictest33-21ksoftirqd/219:20:112
1712299483,2cyclictest0-21swapper/023:45:210
17122994829,8cyclictest9-21ksoftirqd/022:44:210
17122994822,4cyclictest9-21ksoftirqd/019:25:230
17122994817,6cyclictest9-21ksoftirqd/020:25:250
1712299481,6cyclictest19581-21cron20:25:000
1712499472,3cyclictest121rcu_preempt22:48:582
1712499472,3cyclictest121rcu_preempt22:42:582
1712499472,2cyclictest121rcu_preempt22:20:592
17124994721,6cyclictest33-21ksoftirqd/223:40:492
17124994719,3cyclictest33-21ksoftirqd/221:40:452
17124994717,4cyclictest33-21ksoftirqd/200:35:372
17124994717,3cyclictest33-21ksoftirqd/219:50:202
17124994717,3cyclictest33-21ksoftirqd/219:50:202
17124994716,4cyclictest33-21ksoftirqd/219:19:552
1712299472,2cyclictest4550-21latency_hist00:30:010
1712299472,2cyclictest22655-21idleruntime-cro00:00:010
1712299472,2cyclictest0-21swapper/023:05:000
1712299470,3cyclictest121rcu_preempt00:35:130
134491470,4ptp4l0-21swapper/319:48:343
134491470,3ptp4l0-21swapper/020:44:240
134491470,12ptp4l0-21swapper/020:55:020
134491470,10ptp4l0-21swapper/219:45:232
1712499469,6cyclictest33-21ksoftirqd/221:55:282
1712499463,3cyclictest121rcu_preempt20:09:592
17124994618,6cyclictest33-21ksoftirqd/221:11:142
1712499461,3cyclictest121rcu_preempt22:58:592
1712499461,2cyclictest121rcu_preempt23:50:592
1712499460,3cyclictest121rcu_preempt00:10:172
1712299463,6cyclictest121rcu_preempt21:10:200
17122994628,7cyclictest9-21ksoftirqd/021:35:460
1712299462,6cyclictest0-21swapper/022:50:210
134491460,3ptp4l0-21swapper/121:31:541
1712499452,2cyclictest121rcu_preempt23:26:592
1712499451,3cyclictest121rcu_preempt20:10:032
17124994511,5cyclictest33-21ksoftirqd/223:55:222
17124994511,5cyclictest33-21ksoftirqd/200:00:262
1712299454,2cyclictest24978-21grep21:45:120
1712299452,2cyclictest2131-21idleruntime22:05:150
1712299450,5cyclictest0-21swapper/000:30:260
134491450,9ptp4l33-21ksoftirqd/219:07:162
134491450,9ptp4l33-21ksoftirqd/219:07:162
134491450,4ptp4l0-21swapper/120:28:331
134491450,10ptp4l0-21swapper/100:35:521
1712499446,6cyclictest33-21ksoftirqd/221:10:012
17124994438,3cyclictest33-21ksoftirqd/221:45:172
17124994416,4cyclictest33-21ksoftirqd/221:39:392
1712299440,3cyclictest9-21ksoftirqd/022:10:180
134491440,3ptp4l0-21swapper/320:53:463
134491440,3ptp4l0-21swapper/222:08:562
134491440,3ptp4l0-21swapper/123:33:491
134491440,10ptp4l0-21swapper/321:26:233
17125994334,5cyclictest41-21ksoftirqd/320:15:123
1712499431,2cyclictest121rcu_preempt21:18:132
17124994312,4cyclictest33-21ksoftirqd/223:20:502
1712399439,32cyclictest0-21swapper/123:25:471
1712299432,6cyclictest9-21ksoftirqd/000:00:270
134691430,11getstats0-21swapper/119:47:191
134491430,9ptp4l0-21swapper/220:29:452
134491430,9ptp4l0-21swapper/219:40:362
134491430,9ptp4l0-21swapper/200:06:202
134491430,4ptp4l0-21swapper/300:38:203
134491430,4ptp4l0-21swapper/121:22:461
134491430,3ptp4l0-21swapper/321:21:263
134491430,2ptp4l0-21swapper/220:57:522
17122994237,3cyclictest9-21ksoftirqd/023:10:190
1712299423,3cyclictest121rcu_preempt20:00:190
134691420,12getstats0-21swapper/121:25:161
134691420,11getstats0-21swapper/120:14:041
134491420,8ptp4l0-21swapper/219:27:472
134491420,4ptp4l26733-21ls22:55:253
134491420,4ptp4l0-21swapper/322:52:133
134491420,3ptp4l24407-21cpuspeed_turbos19:25:121
134491420,3ptp4l11905-21iostat23:35:171
1712499411,2cyclictest121rcu_preempt20:31:032
17123994135,3cyclictest25-21ksoftirqd/122:20:011
134691410,11getstats0-21swapper/122:58:511
134491410,5ptp4l0-21swapper/123:10:101
134491410,5ptp4l0-21swapper/121:35:161
134491410,4ptp4l6120-21users23:20:261
134491410,4ptp4l431-21ntp_states22:00:221
134491410,4ptp4l27690-21memory20:40:212
134491410,4ptp4l0-21swapper/321:50:343
134491410,4ptp4l0-21swapper/321:50:343
134491410,4ptp4l0-21swapper/320:45:233
134491410,4ptp4l0-21swapper/320:40:593
134491410,3ptp4l13659-21apt-get22:30:112
134491410,3ptp4l10616-21apt-get20:05:113
134491410,3ptp4l0-21swapper/122:25:261
134691400,10getstats0-21swapper/120:17:521
134491400,5ptp4l0-21swapper/121:45:171
134491400,4ptp4l5697-21memory00:30:181
134491400,4ptp4l31811-21iostat_ios19:40:181
134491400,4ptp4l11610-21/usr/sbin/munin21:15:191
134491400,4ptp4l0-21swapper/323:55:113
134491400,4ptp4l0-21swapper/321:55:133
134491400,4ptp4l0-21swapper/321:35:233
134491400,4ptp4l0-21swapper/300:11:413
134491400,4ptp4l0-21swapper/122:05:221
134491400,4ptp4l0-21swapper/120:33:271
134491400,4ptp4l0-21swapper/119:20:001
134491400,3ptp4l7686-21ls23:25:183
134491400,3ptp4l21594-21strings23:55:191
134491400,3ptp4l0-21swapper/100:25:151
17124993934,3cyclictest33-21ksoftirqd/200:25:232
134491390,7ptp4l0-21swapper/122:45:001
134491390,4ptp4l18841-21ps23:50:173
134491390,4ptp4l0-21swapper/323:35:213
134491390,4ptp4l0-21swapper/323:31:133
134491390,4ptp4l0-21swapper/323:10:123
134491390,4ptp4l0-21swapper/322:40:133
134491390,4ptp4l0-21swapper/322:35:273
134491390,4ptp4l0-21swapper/322:30:153
134491390,4ptp4l0-21swapper/321:10:173
134491390,4ptp4l0-21swapper/221:29:142
134491390,4ptp4l0-21swapper/123:05:201
134491390,4ptp4l0-21swapper/122:30:211
134491390,4ptp4l0-21swapper/122:21:381
134491390,4ptp4l0-21swapper/122:10:111
134491390,4ptp4l0-21swapper/121:09:101
134491390,4ptp4l0-21swapper/119:55:211
134491390,4ptp4l0-21swapper/119:10:201
134491390,3ptp4l4796-21iostat22:10:173
134491390,3ptp4l28224-21iostat00:10:171
134491390,3ptp4l11880-21ntp_states21:15:223
17125993833,3cyclictest41-21ksoftirqd/300:33:423
134491380,5ptp4l0-21swapper/323:20:183
134491380,5ptp4l0-21swapper/320:26:543
134491380,4ptp4l0-21swapper/322:49:453
134491380,4ptp4l0-21swapper/322:28:483
134491380,4ptp4l0-21swapper/322:07:463
134491380,4ptp4l0-21swapper/321:01:513
134491380,4ptp4l0-21swapper/320:30:223
134491380,4ptp4l0-21swapper/320:05:013
134491380,4ptp4l0-21swapper/319:35:233
134491380,4ptp4l0-21swapper/319:25:143
134491380,4ptp4l0-21swapper/300:00:153
134491380,4ptp4l0-21swapper/123:15:141
134491380,4ptp4l0-21swapper/123:00:061
134491380,4ptp4l0-21swapper/122:45:121
134491380,4ptp4l0-21swapper/122:39:161
134491380,4ptp4l0-21swapper/121:50:231
134491380,4ptp4l0-21swapper/121:50:231
134491380,4ptp4l0-21swapper/120:50:141
134491380,4ptp4l0-21swapper/120:40:121
134491380,4ptp4l0-21swapper/120:35:251
134491380,4ptp4l0-21swapper/120:25:011
134491380,4ptp4l0-21swapper/120:00:121
134491380,4ptp4l0-21swapper/100:20:111
134491380,4ptp4l0-21swapper/100:15:121
134491380,4ptp4l0-21swapper/100:05:141
134491380,3ptp4l0-21swapper/322:00:083
134491380,3ptp4l0-21swapper/300:15:173
134491370,4ptp4l11173-21rm22:25:003
134491370,4ptp4l0-21swapper/323:48:293
134491370,4ptp4l0-21swapper/319:11:043
134491370,4ptp4l0-21swapper/319:07:173
134491370,4ptp4l0-21swapper/319:07:173
134491370,4ptp4l0-21swapper/121:11:511
134491370,4ptp4l0-21swapper/120:58:031
134491370,3ptp4l0-21swapper/323:00:113
134491370,3ptp4l0-21swapper/321:40:303
134491370,3ptp4l0-21swapper/319:51:463
134491370,3ptp4l0-21swapper/319:51:463
134491370,3ptp4l0-21swapper/319:42:193
134491370,3ptp4l0-21swapper/319:20:373
134491370,3ptp4l0-21swapper/122:50:151
134491370,11ptp4l0-21swapper/121:00:261
134491360,4ptp4l0-21swapper/321:30:533
134491360,4ptp4l0-21swapper/300:08:243
134491360,3ptp4l0-21swapper/320:12:383
134491360,3ptp4l0-21swapper/300:23:213
134491360,3ptp4l0-21swapper/100:02:221
134491350,3ptp4l0-21swapper/323:16:463
17125993429,3cyclictest41-21ksoftirqd/300:26:243
17125993126,3cyclictest41-21ksoftirqd/323:45:003
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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