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2025-12-22 - 09:14
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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 Mon Dec 22, 2025 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2065121720,6sleep32878599cyclictest23:14:593
2284521620,1sleep222840-21sh20:05:352
2741021450,6sleep22878499cyclictest20:03:472
2867421420,5sleep02878299cyclictest20:06:140
41521220,3sleep30-21swapper/321:20:193
279862900,7sleep32878599cyclictest20:34:223
58082820,1sleep25804-21execl20:14:352
309142720,5sleep230911-21latency_hist19:15:002
26302690,3sleep12639-21spawn20:27:171
134491690,35ptp4l25-21ksoftirqd/120:35:151
134491680,5ptp4l0-21swapper/019:20:200
111422680,7sleep10-21swapper/120:00:281
105532680,6sleep12878399cyclictest20:08:111
68062670,5sleep06821-21spawn20:27:080
262842670,5sleep22878499cyclictest20:31:402
58262660,4sleep05803-21execl20:14:490
290352640,4sleep00-21swapper/020:33:150
134491630,5ptp4l0-21swapper/319:15:233
57442610,2sleep3391rcuc/320:13:593
134491610,4ptp4l0-21swapper/020:02:250
134491610,4ptp4l0-21swapper/019:52:380
183822590,3sleep218402-21od20:35:422
134491590,4ptp4l0-21swapper/321:33:563
134491590,4ptp4l0-21swapper/122:50:201
134491590,3ptp4l0-21swapper/121:21:121
54742580,3sleep35489-21spawn20:27:033
2878399582,12cyclictest9443-21od20:30:551
134491580,4ptp4l0-21swapper/023:00:160
134491580,3ptp4l0-21swapper/021:45:150
134491570,4ptp4l0-21swapper/021:50:260
2878399560,12cyclictest14472-21grep00:10:181
169692560,4sleep30-21swapper/319:58:573
134491560,3ptp4l18828-21memory20:50:210
134491560,3ptp4l0-21swapper/123:35:371
57032550,2sleep10-21swapper/120:13:411
2878399557,7cyclictest0-21swapper/119:51:081
134491550,3ptp4l30547-21apt-get20:35:140
134491550,3ptp4l0-21swapper/123:55:151
134491550,3ptp4l0-21swapper/021:00:160
134491550,3ptp4l0-21swapper/019:44:070
2878399544,9cyclictest21376-21grep00:25:181
134491540,5ptp4l0-21swapper/319:08:113
134491540,5ptp4l0-21swapper/023:45:260
134491540,4ptp4l0-21swapper/023:54:030
134491540,4ptp4l0-21swapper/020:17:500
134491540,11ptp4l0-21swapper/022:31:110
2878399537,6cyclictest0-21swapper/121:30:231
2878399537,6cyclictest0-21swapper/121:14:591
134491530,6ptp4l0-21swapper/219:07:422
134491530,4ptp4l0-21swapper/022:15:130
134491530,4ptp4l0-21swapper/000:18:510
134491530,3ptp4l0-21swapper/022:20:470
2878399528,5cyclictest0-21swapper/100:21:251
2878399528,5cyclictest0-21swapper/100:21:251
2878399526,5cyclictest0-21swapper/122:05:191
2878399523,12cyclictest0-21swapper/123:27:401
134491520,4ptp4l0-21swapper/100:01:491
134491520,12ptp4l0-21swapper/219:59:552
114872520,4sleep311484-21grep20:05:553
2878399514,11cyclictest0-21swapper/100:05:121
2878399511,12cyclictest24080-21sed00:30:191
2878399510,11cyclictest2706-21tail19:20:281
134491510,5ptp4l0-21swapper/000:30:180
134491510,4ptp4l0-21swapper/321:52:103
134491510,4ptp4l0-21swapper/019:45:270
134491510,4ptp4l0-21swapper/000:06:380
134491510,3ptp4l28816-21chrt21:10:560
134491510,3ptp4l0-21swapper/021:59:440
2878399507,6cyclictest0-21swapper/122:45:171
2878399506,7cyclictest0-21swapper/120:20:221
134491500,4ptp4l0-21swapper/023:20:150
134491500,4ptp4l0-21swapper/000:13:420
2878399493,5cyclictest29616-21spawn19:59:121
134491490,4ptp4l0-21swapper/323:26:353
134491490,3ptp4l0-21swapper/223:30:272
134491490,3ptp4l0-21swapper/023:10:140
134491490,3ptp4l0-21swapper/022:04:590
134491480,8ptp4l0-21swapper/323:15:163
134491480,2ptp4l11999-21whetstone-doubl19:05:150
134491480,15ptp4l10268-21fstime20:21:020
2878399473,6cyclictest0-21swapper/123:19:541
134491470,4ptp4l0-21swapper/123:22:431
134491470,4ptp4l0-21swapper/021:16:590
134491470,4ptp4l0-21swapper/000:27:230
134491470,3ptp4l0-21swapper/022:25:510
134491470,3ptp4l0-21swapper/000:22:390
134491470,3ptp4l0-21swapper/000:22:380
2878399468,6cyclictest0-21swapper/121:06:591
2878399462,10cyclictest0-21swapper/120:40:031
134491460,4ptp4l0-21swapper/322:46:593
2878399457,6cyclictest0-21swapper/119:19:381
2878399453,5cyclictest0-21swapper/122:41:281
2878399453,11cyclictest0-21swapper/100:35:041
2878399452,4cyclictest0-21swapper/122:17:331
134491450,4ptp4l0-21swapper/022:12:560
134491450,3ptp4l0-21swapper/019:58:550
134491450,2ptp4l11999-21whetstone-doubl19:12:330
2878399443,5cyclictest0-21swapper/123:09:361
2878399440,6cyclictest134491ptp4l21:25:151
134491440,7ptp4l0-21swapper/200:11:422
134491440,4ptp4l0-21swapper/223:51:342
134491440,4ptp4l0-21swapper/023:16:280
134491440,3ptp4l0-21swapper/022:02:190
28784994330,11cyclictest33-21ksoftirqd/221:30:002
2878399434,7cyclictest31193-21ps22:25:251
2878399433,11cyclictest0-21swapper/122:39:071
134491430,9ptp4l0-21swapper/223:58:192
134491430,9ptp4l0-21swapper/221:12:512
134491430,9ptp4l0-21swapper/220:43:502
134491430,6ptp4l0-21swapper/320:22:063
134491430,5ptp4l0-21swapper/319:50:253
134491430,4ptp4l0-21swapper/020:58:020
134491430,10ptp4l0-21swapper/223:42:152
28785994224,4cyclictest41-21ksoftirqd/320:35:173
2878399426,4cyclictest134691getstats21:55:181
2878399423,7cyclictest3137-21memory23:45:231
134491420,9ptp4l4142-21chrt22:38:162
134491420,9ptp4l0-21swapper/222:06:172
134491420,9ptp4l0-21swapper/221:40:032
134491420,9ptp4l0-21swapper/221:38:372
134491420,9ptp4l0-21swapper/221:34:122
134491420,5ptp4l0-21swapper/222:25:222
134491420,5ptp4l0-21swapper/120:15:231
134491420,4ptp4l0-21swapper/323:35:213
134491420,4ptp4l0-21swapper/320:15:313
134491420,4ptp4l0-21swapper/220:15:342
134491420,3ptp4l26155-21irqstats23:25:192
134491420,3ptp4l0-21swapper/020:46:240
134491420,3ptp4l0-21swapper/020:46:230
28784994135,3cyclictest33-21ksoftirqd/220:27:012
28783994136,3cyclictest11588-21systemctl19:40:231
2878399413,5cyclictest0-21swapper/119:45:361
1957824134,3sleep233-21ksoftirqd/223:10:262
134491410,9ptp4l0-21swapper/220:23:472
134491410,7ptp4l11999-21whetstone-doubl19:19:432
134491410,5ptp4l2878399cyclictest21:00:131
134491410,5ptp4l0-21swapper/219:46:572
134491410,5ptp4l0-21swapper/123:50:261
134491410,5ptp4l0-21swapper/122:00:231
134491410,5ptp4l0-21swapper/120:45:121
134491410,5ptp4l0-21swapper/120:45:121
134491410,5ptp4l0-21swapper/020:40:150
134491410,4ptp4l13963-21df23:00:151
134491410,4ptp4l0-21swapper/320:40:133
134491410,4ptp4l0-21swapper/221:20:022
134491410,4ptp4l0-21swapper/220:59:312
134491410,4ptp4l0-21swapper/219:24:322
134491410,3ptp4l20175-21apt-get20:55:131
134491410,3ptp4l16696-21ntp_states20:45:233
134491410,3ptp4l16696-21ntp_states20:45:233
134491410,3ptp4l11440-21apt-get22:55:141
134491410,3ptp4l0-21swapper/021:31:530
46198400,7rtkit-daemon0-21swapper/021:23:090
28784994035,3cyclictest33-21ksoftirqd/200:21:152
28784994035,3cyclictest33-21ksoftirqd/200:21:152
2878399402,11cyclictest0-21swapper/122:34:461
134491400,9ptp4l0-21swapper/219:28:412
134491400,6ptp4l31460-21perf21:19:592
134491400,5ptp4l7118-21ssh19:30:263
134491400,5ptp4l29589-21sshd23:34:081
134491400,5ptp4l23586-21awk21:00:233
134491400,5ptp4l0-21swapper/000:35:130
134491400,4ptp4l6592-21/usr/sbin/munin19:30:200
134491400,4ptp4l4516-21ntp_states19:25:241
134491400,4ptp4l14778-21fstime19:50:242
134491400,4ptp4l0-21swapper/323:50:243
134491400,4ptp4l0-21swapper/323:30:263
134491400,4ptp4l0-21swapper/320:03:083
134491400,4ptp4l0-21swapper/200:30:252
134491400,4ptp4l0-21swapper/121:40:231
134491400,4ptp4l0-21swapper/023:35:250
134491400,4ptp4l0-21swapper/022:50:200
134491400,4ptp4l0-21swapper/022:45:160
134491400,4ptp4l0-21swapper/019:25:220
134491400,3ptp4l8144-21users21:35:310
134491400,3ptp4l18440-21iostat20:50:181
134491400,3ptp4l16959-21iostat_ios00:15:211
28785993924,4cyclictest41-21ksoftirqd/323:21:093
28784993933,4cyclictest33-21ksoftirqd/223:16:472
2878399393,7cyclictest27988-21diskstats22:20:161
2878399391,10cyclictest0-21swapper/121:36:091
134491390,5ptp4l25301-21latency_hist22:15:001
134491390,5ptp4l12729-21readlink22:55:262
134491390,5ptp4l1-21systemd19:47:083
134491390,5ptp4l0-21swapper/123:10:211
134491390,5ptp4l0-21swapper/119:37:091
134491390,5ptp4l0-21swapper/023:05:220
134491390,5ptp4l0-21swapper/021:05:160
134491390,4ptp4l1232-21grep23:40:271
134491390,4ptp4l0-21swapper/323:47:573
134491390,4ptp4l0-21swapper/319:20:193
134491390,4ptp4l0-21swapper/223:36:552
134491390,4ptp4l0-21swapper/222:16:192
134491390,4ptp4l0-21swapper/221:55:212
134491390,4ptp4l0-21swapper/221:53:342
134491390,4ptp4l0-21swapper/221:05:172
134491390,4ptp4l0-21swapper/219:35:442
134491390,4ptp4l0-21swapper/200:36:552
134491390,4ptp4l0-21swapper/200:25:442
134491390,4ptp4l0-21swapper/200:15:132
134491390,4ptp4l0-21swapper/200:00:262
134491390,4ptp4l0-21swapper/121:50:191
134491390,4ptp4l0-21swapper/121:48:281
134491390,4ptp4l0-21swapper/121:15:251
134491390,4ptp4l0-21swapper/119:30:001
134491390,4ptp4l0-21swapper/023:55:230
134491390,4ptp4l0-21swapper/023:31:350
134491390,4ptp4l0-21swapper/023:25:150
134491390,4ptp4l0-21swapper/022:55:140
134491390,4ptp4l0-21swapper/022:35:150
134491390,4ptp4l0-21swapper/021:40:160
134491390,3ptp4l31561-21latency_hist21:20:003
134491390,3ptp4l26136-21python21:05:263
134491380,5ptp4l0-21swapper/223:01:342
134491380,4ptp4l5439-21cron19:29:593
134491380,4ptp4l0-21swapper/323:55:273
134491380,4ptp4l0-21swapper/323:42:203
134491380,4ptp4l0-21swapper/322:35:143
134491380,4ptp4l0-21swapper/321:55:513
134491380,4ptp4l0-21swapper/321:45:083
134491380,4ptp4l0-21swapper/320:55:263
134491380,4ptp4l0-21swapper/300:16:293
134491380,4ptp4l0-21swapper/223:47:372
134491380,4ptp4l0-21swapper/223:20:452
134491380,4ptp4l0-21swapper/223:05:332
134491380,4ptp4l0-21swapper/222:45:252
134491380,4ptp4l0-21swapper/222:42:172
134491380,4ptp4l0-21swapper/222:30:262
134491380,4ptp4l0-21swapper/222:22:192
134491380,4ptp4l0-21swapper/222:14:262
134491380,4ptp4l0-21swapper/222:00:432
134491380,4ptp4l0-21swapper/221:02:112
134491380,4ptp4l0-21swapper/220:50:052
134491380,4ptp4l0-21swapper/220:46:042
134491380,4ptp4l0-21swapper/220:46:032
134491380,4ptp4l0-21swapper/219:40:222
134491380,4ptp4l0-21swapper/119:10:181
134491380,4ptp4l0-21swapper/119:05:001
134491380,4ptp4l0-21swapper/023:40:250
134491380,4ptp4l0-21swapper/022:41:180
134491380,4ptp4l0-21swapper/019:38:290
134491380,4ptp4l0-21swapper/000:00:000
134491380,3ptp4l0-21swapper/320:51:413
134491380,3ptp4l0-21swapper/222:51:572
134491380,3ptp4l0-21swapper/221:45:032
46198370,2rtkit-daemon460-21rtkit-daemon19:10:273
28784993732,3cyclictest33-21ksoftirqd/219:31:572
134491370,4ptp4l0-21swapper/322:54:303
134491370,4ptp4l0-21swapper/322:30:503
134491370,4ptp4l0-21swapper/322:30:003
134491370,4ptp4l0-21swapper/322:20:053
134491370,4ptp4l0-21swapper/322:18:263
134491370,4ptp4l0-21swapper/319:36:413
134491370,4ptp4l0-21swapper/300:11:463
134491370,4ptp4l0-21swapper/300:02:153
134491370,4ptp4l0-21swapper/200:06:022
134491370,3ptp4l0-21swapper/322:55:313
134491370,3ptp4l0-21swapper/322:09:023
134491370,3ptp4l0-21swapper/300:37:123
134491370,3ptp4l0-21swapper/300:07:293
134491370,3ptp4l0-21swapper/021:25:230
134491370,2ptp4l11999-21whetstone-doubl19:15:580
134491360,4ptp4l0-21swapper/323:06:493
134491360,4ptp4l0-21swapper/321:44:353
134491360,4ptp4l0-21swapper/300:34:123
134491360,4ptp4l0-21swapper/300:20:013
134491360,4ptp4l0-21swapper/300:20:003
134491360,3ptp4l18907-21kernelversion22:00:213
134491360,3ptp4l0-21swapper/321:10:043
134491350,4ptp4l0-21swapper/322:42:013
134491350,3ptp4l0-21swapper/321:25:413
134491350,3ptp4l0-21swapper/300:26:513
134491320,3ptp4l0-21swapper/321:38:393
134491320,1ptp4l11999-21whetstone-doubl19:40:073
28785992924,3cyclictest41-21ksoftirqd/323:03:083
28785992722,3cyclictest41-21ksoftirqd/322:13:313
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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