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2026-05-10 - 15:03
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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 Sun May 10, 2026 00:45:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2940221640,6sleep33007699cyclictest20:15:283
30076997829,12cyclictest41-21ksoftirqd/321:35:023
30076996740,3cyclictest41-21ksoftirqd/322:50:253
66162650,3sleep30-21swapper/322:55:233
30076996339,3cyclictest41-21ksoftirqd/322:20:283
123292630,4sleep00-21swapper/000:15:270
123292630,4sleep00-21swapper/000:15:260
30076996230,4cyclictest41-21ksoftirqd/322:15:163
30076996226,8cyclictest41-21ksoftirqd/323:43:163
30076996136,3cyclictest41-21ksoftirqd/300:00:293
30076996129,8cyclictest41-21ksoftirqd/320:55:593
30076996129,4cyclictest41-21ksoftirqd/319:30:153
30076996030,8cyclictest41-21ksoftirqd/322:48:073
30076996029,4cyclictest41-21ksoftirqd/320:04:523
30076996028,4cyclictest41-21ksoftirqd/319:55:133
30076996025,9cyclictest41-21ksoftirqd/321:25:013
134491600,6ptp4l0-21swapper/219:08:282
30076995926,4cyclictest41-21ksoftirqd/319:41:003
30076995824,4cyclictest41-21ksoftirqd/323:23:003
134491580,3ptp4l5821-21meminfo20:35:192
30076995729,4cyclictest41-21ksoftirqd/300:30:163
30076995729,3cyclictest41-21ksoftirqd/319:28:423
30076995725,3cyclictest41-21ksoftirqd/319:10:313
30076995723,4cyclictest41-21ksoftirqd/321:41:303
134491570,4ptp4l0-21swapper/221:40:262
134491570,4ptp4l0-21swapper/200:15:152
134491570,4ptp4l0-21swapper/200:15:142
134491570,3ptp4l0-21swapper/223:35:242
30076995624,3cyclictest41-21ksoftirqd/323:27:393
30076995624,3cyclictest41-21ksoftirqd/322:30:183
30076995623,8cyclictest41-21ksoftirqd/321:05:283
30076995623,4cyclictest41-21ksoftirqd/323:45:483
30076995623,4cyclictest41-21ksoftirqd/321:49:203
30076995617,7cyclictest41-21ksoftirqd/323:15:223
134491560,3ptp4l0-21swapper/121:45:261
30076995527,6cyclictest41-21ksoftirqd/320:40:253
30076995526,8cyclictest41-21ksoftirqd/321:27:043
30076995526,3cyclictest41-21ksoftirqd/322:25:173
30076995523,8cyclictest41-21ksoftirqd/320:45:143
30076995523,7cyclictest41-21ksoftirqd/321:57:243
30076995521,3cyclictest41-21ksoftirqd/322:40:263
30076995520,6cyclictest41-21ksoftirqd/321:30:193
30076995518,9cyclictest41-21ksoftirqd/323:05:223
30076995515,8cyclictest41-21ksoftirqd/320:32:393
30076995514,7cyclictest41-21ksoftirqd/300:20:133
134491550,5ptp4l0-21swapper/023:30:230
134491550,3ptp4l0-21swapper/219:40:542
134491550,3ptp4l0-21swapper/123:45:231
30076995427,4cyclictest41-21ksoftirqd/320:10:213
30076995426,7cyclictest41-21ksoftirqd/319:35:203
30076995426,3cyclictest41-21ksoftirqd/323:00:433
30076995424,4cyclictest41-21ksoftirqd/300:36:073
30076995424,3cyclictest41-21ksoftirqd/322:03:553
30076995420,8cyclictest41-21ksoftirqd/322:10:143
134491540,4ptp4l0-21swapper/221:35:072
30076995323,4cyclictest41-21ksoftirqd/319:17:263
3007399539,4cyclictest9-21ksoftirqd/000:20:300
30076995224,3cyclictest41-21ksoftirqd/323:35:273
30076995223,9cyclictest41-21ksoftirqd/323:30:173
30076995222,7cyclictest41-21ksoftirqd/319:50:203
30076995217,8cyclictest41-21ksoftirqd/320:05:133
134491520,4ptp4l0-21swapper/200:27:332
134491520,19ptp4l0-21swapper/020:25:390
134491520,11ptp4l0-21swapper/023:51:250
30076995120,4cyclictest41-21ksoftirqd/323:55:133
30076995117,8cyclictest41-21ksoftirqd/321:15:123
30076995116,4cyclictest41-21ksoftirqd/319:45:283
3007399517,8cyclictest9-21ksoftirqd/022:50:160
3007399516,5cyclictest9-21ksoftirqd/000:13:200
3007399514,3cyclictest9-21ksoftirqd/023:48:200
134491510,4ptp4l0-21swapper/222:36:202
30076995021,3cyclictest41-21ksoftirqd/320:39:423
30076995014,8cyclictest41-21ksoftirqd/321:10:283
30076995011,8cyclictest41-21ksoftirqd/320:26:093
3007399507,4cyclictest9-21ksoftirqd/022:15:190
3007399504,4cyclictest9-21ksoftirqd/020:40:590
30073995031,3cyclictest134491ptp4l21:05:110
134491500,4ptp4l0-21swapper/221:20:382
134491500,4ptp4l0-21swapper/019:51:280
134491500,3ptp4l0-21swapper/222:59:192
134491500,3ptp4l0-21swapper/221:55:572
134491500,3ptp4l0-21swapper/119:35:491
30076994924,8cyclictest41-21ksoftirqd/323:51:023
134491490,4ptp4l9708-21hddtemp_smartct19:35:160
134491490,4ptp4l0-21swapper/221:25:422
134491490,4ptp4l0-21swapper/220:21:092
134491490,4ptp4l0-21swapper/219:33:592
134491490,4ptp4l0-21swapper/200:02:312
134491490,4ptp4l0-21swapper/120:53:201
134491490,4ptp4l0-21swapper/100:10:031
134491490,4ptp4l0-21swapper/021:48:340
134491490,3ptp4l0-21swapper/219:37:532
3007399488,5cyclictest9-21ksoftirqd/022:44:260
3007399484,3cyclictest9-21ksoftirqd/022:00:290
3007399482,5cyclictest9-21ksoftirqd/023:35:530
134491480,8ptp4l0-21swapper/221:34:522
134491480,4ptp4l0-21swapper/223:13:192
134491480,4ptp4l0-21swapper/220:50:422
134491480,3ptp4l0-21swapper/220:18:442
134491480,3ptp4l0-21swapper/019:06:110
30076994734,3cyclictest41-21ksoftirqd/320:51:383
3007699472,2cyclictest121rcu_preempt00:15:183
3007699472,2cyclictest121rcu_preempt00:15:183
30076994721,6cyclictest41-21ksoftirqd/323:10:123
30076994717,4cyclictest41-21ksoftirqd/300:05:283
30076994710,8cyclictest41-21ksoftirqd/322:05:103
3007399474,8cyclictest9-21ksoftirqd/000:07:500
3007399473,3cyclictest9-21ksoftirqd/022:58:590
3007399471,5cyclictest9-21ksoftirqd/023:03:210
3007399470,4cyclictest9-21ksoftirqd/019:45:280
134491470,9ptp4l0-21swapper/219:27:132
134491470,8ptp4l18712-21ls23:20:292
134491470,4ptp4l0-21swapper/223:49:512
134491470,4ptp4l0-21swapper/221:10:362
134491470,3ptp4l0-21swapper/223:01:212
134491470,3ptp4l0-21swapper/200:32:562
3007699461,6cyclictest41-21ksoftirqd/300:10:173
30076994612,10cyclictest41-21ksoftirqd/300:25:203
30073994619,4cyclictest9-21ksoftirqd/019:16:590
30073994615,7cyclictest9-21ksoftirqd/021:35:220
3007399461,4cyclictest9-21ksoftirqd/023:40:040
3007399460,5cyclictest9-21ksoftirqd/021:52:030
3007399460,5cyclictest9-21ksoftirqd/021:40:290
3007399460,5cyclictest9-21ksoftirqd/000:37:070
134491460,4ptp4l0-21swapper/019:26:360
134491460,3ptp4l0-21swapper/222:05:202
3007399458,4cyclictest9-21ksoftirqd/020:35:010
3007399452,10cyclictest5326-21kworker/0:000:02:460
3007399451,9cyclictest9-21ksoftirqd/020:39:390
134491450,4ptp4l0-21swapper/020:13:540
134491450,3ptp4l0-21swapper/100:17:371
134491450,3ptp4l0-21swapper/100:17:371
3007699449,7cyclictest41-21ksoftirqd/321:51:223
3007699440,3cyclictest41-21ksoftirqd/319:23:463
30073994439,3cyclictest19706-21df_abs23:25:140
3007399442,7cyclictest0-21swapper/022:28:390
3007399441,3cyclictest121rcu_preempt21:25:260
219952440,1sleep221997-21tail20:00:232
134491440,5ptp4l18520-21apt-get19:55:120
134491440,4ptp4l2349-21apt-get20:30:132
134491440,3ptp4l0-21swapper/200:07:152
134491440,3ptp4l0-21swapper/123:02:121
134491440,3ptp4l0-21swapper/019:34:080
134491440,10ptp4l0-21swapper/222:50:422
30076994330,6cyclictest41-21ksoftirqd/320:23:533
3007699430,3cyclictest121rcu_preempt22:35:013
30074994338,3cyclictest25-21ksoftirqd/119:30:001
3007399434,3cyclictest9-21ksoftirqd/021:23:150
30073994310,7cyclictest9-21ksoftirqd/022:10:270
3007399430,5cyclictest9-21ksoftirqd/021:58:130
3007399430,4cyclictest9-21ksoftirqd/022:32:190
134491430,5ptp4l0-21swapper/100:20:131
134491430,5ptp4l0-21swapper/022:05:280
134491430,4ptp4l0-21swapper/020:54:580
134491430,4ptp4l0-21swapper/020:08:350
30074994214,5cyclictest25-21ksoftirqd/122:37:081
3007399425,3cyclictest121rcu_preempt22:50:000
3007399423,3cyclictest9-21ksoftirqd/000:30:190
3007399422,2cyclictest0-21swapper/021:12:530
3007399420,9cyclictest9-21ksoftirqd/019:42:140
134491420,9ptp4l0-21swapper/220:49:122
134491420,5ptp4l29240-21ls19:05:253
30074994136,3cyclictest25-21ksoftirqd/121:15:011
30074994125,7cyclictest25-21ksoftirqd/121:00:231
30074994115,5cyclictest25-21ksoftirqd/100:05:341
30074994112,4cyclictest25-21ksoftirqd/122:07:521
3007399413,6cyclictest0-21swapper/023:58:010
3007399411,5cyclictest9-21ksoftirqd/022:24:470
3007399410,9cyclictest9-21ksoftirqd/019:22:110
134491410,5ptp4l15188-21/usr/sbin/munin20:55:230
134491410,5ptp4l0-21swapper/321:00:153
134491410,4ptp4l31271-21df22:40:132
134491410,4ptp4l28344-21iostat20:15:181
134491410,4ptp4l21349-21ntp_states00:35:232
134491410,4ptp4l19806-21ntp_states21:05:232
134491410,4ptp4l17809-21ls21:00:262
134491410,4ptp4l17179-21apt-get22:10:122
134491410,4ptp4l1501-21ls19:15:292
134491410,4ptp4l14822-21apt-get23:15:122
134491410,4ptp4l0-21swapper/223:27:592
134491410,4ptp4l0-21swapper/220:11:262
134491410,4ptp4l0-21swapper/200:20:152
134491410,4ptp4l0-21swapper/100:39:491
134491410,3ptp4l26443-21apt-get22:30:122
134491410,3ptp4l2371-21apt-get19:20:112
134491410,3ptp4l10537-21diskstats23:05:152
30074994035,3cyclictest25-21ksoftirqd/119:20:191
30074994034,3cyclictest25-21ksoftirqd/100:30:181
3007499400,5cyclictest25-21ksoftirqd/120:28:241
3007399405,3cyclictest9-21ksoftirqd/022:35:270
3007399403,3cyclictest121rcu_preempt21:30:260
30073994025,4cyclictest9-21ksoftirqd/019:12:590
30073994023,4cyclictest9-21ksoftirqd/021:20:000
134491400,5ptp4l31237-21ntp_states19:10:362
134491400,5ptp4l15633-21cstates00:25:141
134491400,4ptp4l17234-21irqstats21:00:190
134491400,4ptp4l0-21swapper/223:50:032
134491400,4ptp4l0-21swapper/220:55:202
134491400,4ptp4l0-21swapper/220:29:432
134491400,4ptp4l0-21swapper/220:05:302
134491400,4ptp4l0-21swapper/121:55:121
134491400,4ptp4l0-21swapper/120:45:141
134491400,4ptp4l0-21swapper/119:06:151
134491400,3ptp4l7188-21apt-get20:40:122
134491400,3ptp4l23490-21apt-get21:15:122
134491400,3ptp4l22673-21ls23:30:201
134491400,3ptp4l12942-21iostat_ios22:00:192
30074993934,3cyclictest25-21ksoftirqd/121:40:001
30074993933,3cyclictest25-21ksoftirqd/123:25:191
30074993932,5cyclictest25-21ksoftirqd/121:25:011
30074993925,6cyclictest25-21ksoftirqd/123:55:151
30074993923,7cyclictest25-21ksoftirqd/122:10:261
30074993923,6cyclictest25-21ksoftirqd/122:25:151
3007399391,7cyclictest0-21swapper/023:05:210
134491390,5ptp4l5156-21dpkg21:45:002
134491390,5ptp4l0-21swapper/122:15:171
134491390,4ptp4l0-21swapper/223:55:222
134491390,4ptp4l0-21swapper/223:30:242
134491390,4ptp4l0-21swapper/222:48:212
134491390,4ptp4l0-21swapper/222:25:082
134491390,4ptp4l0-21swapper/222:21:222
134491390,4ptp4l0-21swapper/221:52:002
134491390,4ptp4l0-21swapper/219:57:242
134491390,4ptp4l0-21swapper/219:45:112
134491390,4ptp4l0-21swapper/200:12:592
134491390,4ptp4l0-21swapper/122:42:281
134491390,4ptp4l0-21swapper/120:33:521
134491390,4ptp4l0-21swapper/023:16:310
134491390,4ptp4l0-21swapper/023:10:370
134491390,4ptp4l0-21swapper/020:47:230
134491390,4ptp4l0-21swapper/020:15:180
134491390,4ptp4l0-21swapper/020:00:450
134491390,4ptp4l0-21swapper/000:25:480
134491390,3ptp4l20898-21ls22:15:262
30074993833,3cyclictest25-21ksoftirqd/123:10:181
30074993833,3cyclictest25-21ksoftirqd/120:01:101
30074993831,4cyclictest25-21ksoftirqd/121:44:591
30074993824,3cyclictest25-21ksoftirqd/121:30:271
3007499382,3cyclictest121rcu_preempt23:55:011
30074993823,4cyclictest25-21ksoftirqd/120:40:261
30074993821,7cyclictest25-21ksoftirqd/120:10:121
134491380,4ptp4l30416-21entropy20:20:141
134491380,4ptp4l0-21swapper/223:40:192
134491380,4ptp4l0-21swapper/219:50:562
134491380,4ptp4l0-21swapper/123:35:141
134491380,4ptp4l0-21swapper/123:22:011
134491380,4ptp4l0-21swapper/123:16:241
134491380,4ptp4l0-21swapper/123:08:491
134491380,4ptp4l0-21swapper/122:48:501
134491380,4ptp4l0-21swapper/122:21:241
134491380,4ptp4l0-21swapper/122:00:121
134491380,4ptp4l0-21swapper/121:29:011
134491380,4ptp4l0-21swapper/119:11:461
134491380,4ptp4l0-21swapper/100:01:361
134491380,4ptp4l0-21swapper/020:21:580
134491380,3ptp4l25135-21unixbench_multi21:15:291
134491380,3ptp4l0-21swapper/121:08:121
134491380,3ptp4l0-21swapper/120:05:181
134491380,3ptp4l0-21swapper/119:30:531
134491380,3ptp4l0-21swapper/023:20:270
30074993732,3cyclictest25-21ksoftirqd/120:00:001
30074993722,6cyclictest25-21ksoftirqd/122:59:401
30074993721,7cyclictest25-21ksoftirqd/122:50:141
134491370,4ptp4l0-21swapper/120:38:401
134491370,4ptp4l0-21swapper/119:52:341
134491370,4ptp4l0-21swapper/119:41:411
134491370,3ptp4l0-21swapper/123:44:321
134491370,3ptp4l0-21swapper/122:33:181
134491370,3ptp4l0-21swapper/121:54:201
134491370,3ptp4l0-21swapper/119:49:301
30074993621,7cyclictest25-21ksoftirqd/119:15:261
30074993620,7cyclictest25-21ksoftirqd/120:55:231
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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