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2025-09-13 - 08:51
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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 rackdslot1.osadl.org (updated Sat Sep 13, 2025 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1982021800,6sleep01480999cyclictest20:30:010
533521520,6sleep31481299cyclictest22:15:183
80202770,4sleep31481299cyclictest23:30:213
2847191650,4ptp4l0-21swapper/320:45:233
2847191630,5ptp4l0-21swapper/122:25:271
2847191620,3ptp4l12070-21hddtemp_smartct23:40:160
2847191610,4ptp4l0-21swapper/223:54:322
2847191600,2ptp4l18719-21ls19:15:270
2847191590,3ptp4l0-21swapper/300:35:323
2847191590,3ptp4l0-21swapper/200:25:342
2847191590,3ptp4l0-21swapper/200:25:342
2847191580,4ptp4l0-21swapper/322:21:523
2847191580,4ptp4l0-21swapper/000:25:240
2847191580,4ptp4l0-21swapper/000:25:240
2847191580,3ptp4l0-21swapper/023:16:520
2847191580,2ptp4l0-21swapper/321:15:313
2847191570,4ptp4l0-21swapper/119:06:371
2847191570,3ptp4l0-21swapper/121:00:211
2847191560,3ptp4l0-21swapper/020:15:260
2847191550,3ptp4l32762-21threads19:45:250
2847191550,3ptp4l0-21swapper/019:54:470
2847191550,2ptp4l0-21swapper/000:15:220
2847191540,4ptp4l0-21swapper/000:20:480
2847191540,3ptp4l0-21swapper/019:20:370
2847191540,3ptp4l0-21swapper/000:01:170
2847191530,5ptp4l0-21swapper/019:05:300
2847191530,4ptp4l0-21swapper/321:44:443
2847191530,4ptp4l0-21swapper/023:38:550
2847191530,4ptp4l0-21swapper/023:28:280
2847191530,4ptp4l0-21swapper/023:02:230
2847191530,4ptp4l0-21swapper/021:41:010
2847191530,4ptp4l0-21swapper/019:42:090
2847191530,3ptp4l0-21swapper/321:35:383
2847191530,3ptp4l0-21swapper/100:35:271
2847191530,3ptp4l0-21swapper/022:52:450
2847191520,4ptp4l0-21swapper/319:13:293
2847191520,4ptp4l0-21swapper/100:11:001
2847191520,4ptp4l0-21swapper/023:46:460
2847191520,4ptp4l0-21swapper/020:02:450
2847191520,4ptp4l0-21swapper/000:38:090
2847191520,4ptp4l0-21swapper/000:11:100
2847191510,4ptp4l0-21swapper/320:42:443
2847191510,4ptp4l0-21swapper/319:29:093
2847191510,4ptp4l0-21swapper/123:09:311
2847191510,4ptp4l0-21swapper/119:23:201
2847191510,4ptp4l0-21swapper/021:14:070
2847191510,4ptp4l0-21swapper/020:10:310
2847191510,4ptp4l0-21swapper/000:33:190
2847191510,3ptp4l0-21swapper/120:04:471
2847191510,3ptp4l0-21swapper/100:06:131
2847191510,3ptp4l0-21swapper/023:20:190
2847191510,3ptp4l0-21swapper/023:13:350
2847191510,3ptp4l0-21swapper/019:57:210
2847191500,4ptp4l0-21swapper/300:30:103
2847191500,3ptp4l0-21swapper/123:47:591
2847191500,3ptp4l0-21swapper/022:04:400
2847191500,3ptp4l0-21swapper/021:04:430
2847191490,11ptp4l0-21swapper/022:10:070
2847191490,10ptp4l15178-21unixbench_multi22:35:283
2847191480,7ptp4l0-21swapper/022:05:300
2847191480,5ptp4l4817-21irqstats21:05:201
2847191480,4ptp4l0-21swapper/122:08:161
2847191480,3ptp4l0-21swapper/122:18:141
2847191470,7ptp4l0-21swapper/223:36:402
2847191470,4ptp4l0-21swapper/021:06:330
2847191470,3ptp4l0-21swapper/021:39:520
1481199471,44cyclictest15669-21kworker/2:100:00:202
2847191460,9ptp4l0-21swapper/200:34:312
2847191460,4ptp4l22903-21apt-get22:55:142
2847191460,4ptp4l0-21swapper/321:35:013
2847191460,10ptp4l0-21swapper/222:45:332
2847191450,4ptp4l0-21swapper/322:42:493
2847191450,3ptp4l0-21swapper/200:16:062
2847191450,10ptp4l0-21swapper/021:18:290
2847191440,9ptp4l0-21swapper/220:22:332
2847191440,9ptp4l0-21swapper/219:19:112
2847191440,5ptp4l0-21swapper/323:05:153
2847191440,4ptp4l30934-21ls20:50:261
2847191440,4ptp4l27173-21apt-get21:55:132
2847191440,4ptp4l0-21swapper/121:36:101
2847191440,3ptp4l0-21swapper/321:46:403
2847191430,9ptp4l0-21swapper/223:13:112
2847191430,9ptp4l0-21swapper/221:25:122
2847191430,6ptp4l23182-21df_abs22:55:161
2847191430,5ptp4l31575-21apt-get22:05:033
2847191430,5ptp4l1481299cyclictest00:00:103
2847191430,5ptp4l0-21swapper/022:45:140
2847191430,4ptp4l8954-21apt-get22:25:122
2847191430,4ptp4l23690-21df00:05:150
2847191430,4ptp4l13577-21apt-get22:35:132
2847191430,4ptp4l0-21swapper/023:32:270
2847191430,3ptp4l9209-21meminfo20:05:230
2847191430,3ptp4l0-21swapper/121:53:091
2847191420,9ptp4l0-21swapper/020:20:500
2847191420,8ptp4l0-21swapper/220:12:232
2847191420,7ptp4l25-21ksoftirqd/119:10:551
2847191420,6ptp4l0-21swapper/019:10:000
2847191420,5ptp4l31879-21df20:55:150
2847191420,5ptp4l27368-21cstates21:55:140
2847191420,5ptp4l0-21swapper/323:00:193
2847191420,5ptp4l0-21swapper/120:25:181
2847191420,5ptp4l0-21swapper/119:54:581
2847191420,5ptp4l0-21swapper/119:35:171
2847191420,4ptp4l5638-21meminfo23:25:211
2847191420,4ptp4l4678-21apt-get23:25:112
2847191420,4ptp4l27545-21apt-get23:05:142
2847191420,4ptp4l21027-21hddtemp_smartct22:50:151
2847191420,4ptp4l16284-21diskstats22:40:141
2847191420,4ptp4l0-21swapper/321:50:123
2847191420,4ptp4l0-21swapper/321:26:233
2847191420,4ptp4l0-21swapper/300:12:403
2847191420,4ptp4l0-21swapper/222:10:562
2847191420,4ptp4l0-21swapper/100:25:241
2847191420,4ptp4l0-21swapper/100:25:241
2847191420,4ptp4l0-21swapper/022:27:130
2847191420,4ptp4l0-21swapper/022:20:490
2847191420,3ptp4l8588-21apt-get21:15:132
2847191420,3ptp4l14375-21ls20:15:271
2847191420,3ptp4l10919-21apt-get21:20:113
2847191420,3ptp4l10919-21apt-get21:20:113
2847191420,3ptp4l0-21swapper/122:11:391
2847191420,3ptp4l0-21swapper/022:18:410
14811994212,28cyclictest0-21swapper/223:30:292
2847191410,9ptp4l0-21swapper/222:42:532
2847191410,8ptp4l0-21swapper/219:52:422
2847191410,8ptp4l0-21swapper/219:30:392
2847191410,8ptp4l0-21swapper/200:24:562
2847191410,5ptp4l30634-21/usr/sbin/munin00:20:131
2847191410,5ptp4l15190-21grep22:35:290
2847191410,5ptp4l0-21swapper/322:45:233
2847191410,5ptp4l0-21swapper/322:25:103
2847191410,5ptp4l0-21swapper/223:47:102
2847191410,5ptp4l0-21swapper/220:53:542
2847191410,5ptp4l0-21swapper/219:27:072
2847191410,5ptp4l0-21swapper/121:55:431
2847191410,5ptp4l0-21swapper/119:45:241
2847191410,4ptp4l4497-21/usr/sbin/munin00:30:311
2847191410,4ptp4l31077-21hddtemp_smartct00:20:173
2847191410,4ptp4l2872-21kernelversion22:10:193
2847191410,4ptp4l15867-21diskstats21:30:151
2847191410,4ptp4l0-21swapper/323:19:373
2847191410,4ptp4l0-21swapper/322:30:533
2847191410,4ptp4l0-21swapper/223:44:432
2847191410,4ptp4l0-21swapper/219:06:532
2847191410,4ptp4l0-21swapper/200:14:532
2847191410,4ptp4l0-21swapper/123:36:181
2847191410,4ptp4l0-21swapper/122:46:101
2847191410,4ptp4l0-21swapper/120:06:431
2847191410,4ptp4l0-21swapper/119:15:151
2847191410,4ptp4l0-21swapper/022:40:230
2847191410,4ptp4l0-21swapper/021:30:140
2847191410,4ptp4l0-21swapper/020:35:200
2847191410,4ptp4l0-21swapper/019:25:230
2847191410,3ptp4l25093-21iostat20:40:160
2847191410,3ptp4l16727-21ntp_states21:30:222
2847191410,3ptp4l0-21swapper/122:04:491
14811994115,5cyclictest0-21swapper/219:35:192
2847191400,5ptp4l1350-21grep23:15:291
2847191400,5ptp4l1299-21runrttasks21:35:302
2847191400,5ptp4l0-21swapper/323:56:513
2847191400,5ptp4l0-21swapper/323:50:183
2847191400,5ptp4l0-21swapper/320:08:393
2847191400,5ptp4l0-21swapper/120:36:211
2847191400,5ptp4l0-21swapper/023:05:160
2847191400,4ptp4l22367-21tr20:35:152
2847191400,4ptp4l0-21swapper/323:42:453
2847191400,4ptp4l0-21swapper/323:25:133
2847191400,4ptp4l0-21swapper/323:10:143
2847191400,4ptp4l0-21swapper/322:59:153
2847191400,4ptp4l0-21swapper/322:52:233
2847191400,4ptp4l0-21swapper/322:03:113
2847191400,4ptp4l0-21swapper/321:01:173
2847191400,4ptp4l0-21swapper/320:50:013
2847191400,4ptp4l0-21swapper/319:56:253
2847191400,4ptp4l0-21swapper/319:54:583
2847191400,4ptp4l0-21swapper/319:39:133
2847191400,4ptp4l0-21swapper/319:15:193
2847191400,4ptp4l0-21swapper/223:58:182
2847191400,4ptp4l0-21swapper/223:16:452
2847191400,4ptp4l0-21swapper/223:02:452
2847191400,4ptp4l0-21swapper/222:32:002
2847191400,4ptp4l0-21swapper/222:07:592
2847191400,4ptp4l0-21swapper/222:01:452
2847191400,4ptp4l0-21swapper/221:46:002
2847191400,4ptp4l0-21swapper/221:20:122
2847191400,4ptp4l0-21swapper/221:20:112
2847191400,4ptp4l0-21swapper/221:11:162
2847191400,4ptp4l0-21swapper/221:06:122
2847191400,4ptp4l0-21swapper/220:56:052
2847191400,4ptp4l0-21swapper/220:46:442
2847191400,4ptp4l0-21swapper/220:31:232
2847191400,4ptp4l0-21swapper/219:56:252
2847191400,4ptp4l0-21swapper/219:46:252
2847191400,4ptp4l0-21swapper/219:40:522
2847191400,4ptp4l0-21swapper/219:23:192
2847191400,4ptp4l0-21swapper/219:14:592
2847191400,4ptp4l0-21swapper/200:08:062
2847191400,4ptp4l0-21swapper/123:40:021
2847191400,4ptp4l0-21swapper/123:34:201
2847191400,4ptp4l0-21swapper/123:20:191
2847191400,4ptp4l0-21swapper/121:25:151
2847191400,4ptp4l0-21swapper/120:40:211
2847191400,4ptp4l0-21swapper/120:20:151
2847191400,4ptp4l0-21swapper/119:30:361
2847191400,4ptp4l0-21swapper/119:25:031
2847191400,4ptp4l0-21swapper/100:15:171
2847191400,4ptp4l0-21swapper/021:50:170
2847191400,4ptp4l0-21swapper/021:23:060
2847191400,4ptp4l0-21swapper/021:23:060
2847191400,4ptp4l0-21swapper/020:50:190
2847191400,4ptp4l0-21swapper/020:46:340
2847191400,4ptp4l0-21swapper/019:36:540
2847191400,3ptp4l7224-21iostat_ios22:20:171
2847191400,3ptp4l4045-21hddtemp_smartct19:55:191
2847191400,3ptp4l29937-21ntp_states19:40:231
2847191400,3ptp4l27159-21/usr/sbin/munin21:55:153
2847191400,3ptp4l25014-21irqstats19:30:180
2847191400,3ptp4l21820-21ls21:40:272
2847191400,3ptp4l16896-21iostat_ios23:50:180
2847191390,4ptp4l0-21swapper/323:47:033
2847191390,4ptp4l0-21swapper/321:05:563
2847191390,4ptp4l0-21swapper/320:35:273
2847191390,4ptp4l0-21swapper/320:30:113
2847191390,4ptp4l0-21swapper/320:11:043
2847191390,4ptp4l0-21swapper/319:40:573
2847191390,4ptp4l0-21swapper/300:05:223
2847191390,4ptp4l0-21swapper/223:22:442
2847191390,4ptp4l0-21swapper/222:52:102
2847191390,4ptp4l0-21swapper/222:18:272
2847191390,4ptp4l0-21swapper/221:50:132
2847191390,4ptp4l0-21swapper/221:03:552
2847191390,4ptp4l0-21swapper/220:41:082
2847191390,4ptp4l0-21swapper/220:27:372
2847191390,4ptp4l0-21swapper/220:18:402
2847191390,4ptp4l0-21swapper/220:05:192
2847191390,4ptp4l0-21swapper/220:01:162
2847191390,4ptp4l0-21swapper/200:36:382
2847191390,4ptp4l0-21swapper/123:58:131
2847191390,4ptp4l0-21swapper/122:38:351
2847191390,4ptp4l0-21swapper/121:45:171
2847191390,4ptp4l0-21swapper/121:40:191
2847191390,4ptp4l0-21swapper/121:15:151
2847191390,4ptp4l0-21swapper/121:10:101
2847191390,4ptp4l0-21swapper/120:55:171
2847191390,4ptp4l0-21swapper/120:46:351
2847191390,4ptp4l0-21swapper/120:12:251
2847191390,4ptp4l0-21swapper/100:01:101
2847191390,4ptp4l0-21swapper/023:58:130
2847191390,4ptp4l0-21swapper/022:56:120
2847191390,4ptp4l0-21swapper/022:32:110
2847191390,4ptp4l0-21swapper/021:25:570
2847191390,3ptp4l31535-21users23:10:291
2847191390,3ptp4l0-21swapper/323:35:023
2847191390,3ptp4l0-21swapper/300:15:293
2847191390,3ptp4l0-21swapper/123:54:111
2847191390,3ptp4l0-21swapper/020:30:050
2847191380,5ptp4l0-21swapper/320:25:163
2847191380,4ptp4l0-21swapper/321:11:093
2847191380,4ptp4l0-21swapper/320:03:203
2847191380,4ptp4l0-21swapper/319:20:213
2847191380,4ptp4l0-21swapper/222:20:482
2847191380,4ptp4l0-21swapper/123:00:171
2847191380,4ptp4l0-21swapper/121:21:131
2847191380,4ptp4l0-21swapper/121:21:131
2847191380,4ptp4l0-21swapper/120:30:131
2847191380,4ptp4l0-21swapper/021:45:140
2847191380,3ptp4l0-21swapper/319:45:153
2847191380,3ptp4l0-21swapper/300:25:343
2847191380,3ptp4l0-21swapper/300:25:343
2847191370,4ptp4l0-21swapper/320:21:373
2847191370,4ptp4l0-21swapper/320:17:593
2847191370,4ptp4l0-21swapper/122:31:281
2847191370,3ptp4l0-21swapper/323:22:233
2847191360,3ptp4l0-21swapper/320:57:433
2847191260,6ptp4l0-21swapper/319:06:553
14812992318,3cyclictest41-21ksoftirqd/319:30:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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