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2026-05-16 - 06:59
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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 May 16, 2026 00:45:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1336121610,4sleep313363-21latency_hist19:55:013
2803521250,7sleep02500799cyclictest22:45:150
134491640,5ptp4l27895-21latency_hist23:55:011
134491620,4ptp4l3230-21irqstats23:00:182
134491620,4ptp4l0-21swapper/123:02:481
134491610,17ptp4l10530-21sed19:45:293
134491600,5ptp4l0-21swapper/220:30:142
134491590,3ptp4l0-21swapper/023:50:130
134491590,3ptp4l0-21swapper/000:20:190
134491570,3ptp4l0-21swapper/121:30:141
134491560,3ptp4l0-21swapper/223:40:232
134491560,3ptp4l0-21swapper/223:40:232
134491560,3ptp4l0-21swapper/200:33:392
25007995529,8cyclictest9-21ksoftirqd/000:00:000
134491550,3ptp4l22148-21phc2sys21:20:240
134491550,3ptp4l0-21swapper/222:24:202
134491550,3ptp4l0-21swapper/019:05:170
184002540,4sleep10-21swapper/120:05:131
134491540,6ptp4l0-21swapper/119:05:291
134491540,4ptp4l0-21swapper/221:09:042
134491520,5ptp4l0-21swapper/320:21:003
134491520,4ptp4l0-21swapper/322:55:123
134491520,4ptp4l0-21swapper/221:31:242
134491520,4ptp4l0-21swapper/120:42:031
134491520,3ptp4l20359-21runrttasks22:26:132
134491520,3ptp4l0-21swapper/219:39:472
134491520,3ptp4l0-21swapper/219:15:262
134491520,3ptp4l0-21swapper/219:15:262
134491520,3ptp4l0-21swapper/119:35:211
134491510,4ptp4l0-21swapper/123:59:591
134491510,13ptp4l0-21swapper/120:51:281
134491500,4ptp4l0-21swapper/319:29:183
134491500,4ptp4l0-21swapper/300:22:443
134491500,4ptp4l0-21swapper/022:12:430
134491500,4ptp4l0-21swapper/021:11:360
134491500,4ptp4l0-21swapper/020:54:090
134491500,3ptp4l0-21swapper/122:52:361
134491500,13ptp4l0-21swapper/021:35:200
134491500,10ptp4l0-21swapper/223:46:072
138432490,4sleep20-21swapper/222:15:002
134491490,4ptp4l0-21swapper/300:18:533
134491490,4ptp4l0-21swapper/300:06:133
134491490,4ptp4l0-21swapper/221:19:062
134491490,4ptp4l0-21swapper/219:53:112
134491490,4ptp4l0-21swapper/219:14:432
134491490,4ptp4l0-21swapper/200:26:392
134491490,4ptp4l0-21swapper/123:44:451
134491490,4ptp4l0-21swapper/123:44:441
134491490,4ptp4l0-21swapper/122:57:481
134491490,4ptp4l0-21swapper/121:46:221
134491490,4ptp4l0-21swapper/100:36:511
134491490,4ptp4l0-21swapper/019:25:160
134491490,3ptp4l0-21swapper/000:11:380
134491480,7ptp4l33-21ksoftirqd/223:51:152
134491480,4ptp4l0-21swapper/220:58:582
134491480,4ptp4l0-21swapper/123:28:371
134491480,4ptp4l0-21swapper/122:04:021
134491480,4ptp4l0-21swapper/121:29:081
134491480,4ptp4l0-21swapper/100:09:511
134491480,3ptp4l0-21swapper/322:31:523
134491480,3ptp4l0-21swapper/200:16:512
134491480,3ptp4l0-21swapper/200:02:292
134491470,4ptp4l0-21swapper/322:06:343
134491470,4ptp4l0-21swapper/320:38:143
134491470,4ptp4l0-21swapper/120:48:491
134491470,4ptp4l0-21swapper/023:13:020
134491470,4ptp4l0-21swapper/023:13:020
134491470,3ptp4l0-21swapper/100:16:171
134491460,4ptp4l0-21swapper/020:41:160
134491460,3ptp4l0-21swapper/119:57:061
134491460,10ptp4l0-21swapper/020:14:210
134491450,4ptp4l0-21swapper/120:38:441
134491450,4ptp4l0-21swapper/120:20:521
134491450,3ptp4l0-21swapper/319:40:233
134491450,12ptp4l0-21swapper/222:55:192
134491450,10ptp4l0-21swapper/122:19:151
2501099441,40cyclictest14845-21uname22:15:203
134491440,9ptp4l0-21swapper/023:17:100
134491440,5ptp4l0-21swapper/023:45:270
134491440,4ptp4l12151-21apt-get00:30:113
134491440,4ptp4l0-21swapper/222:39:562
134491440,3ptp4l0-21swapper/121:18:431
134491440,3ptp4l0-21swapper/120:33:441
134491440,3ptp4l0-21swapper/100:30:291
134491430,9ptp4l0-21swapper/223:07:102
134491430,8ptp4l0-21swapper/200:38:232
134491430,6ptp4l5383-21/usr/sbin/munin19:35:223
134491430,4ptp4l4952-21apt-get23:05:101
134491430,4ptp4l25524-21apt-get22:40:133
134491430,4ptp4l0-21swapper/321:46:583
134491430,4ptp4l0-21swapper/021:55:140
134491430,3ptp4l11865-21apt-get23:20:122
134491430,3ptp4l0-21swapper/219:22:292
134491430,10ptp4l0-21swapper/221:10:462
134491420,9ptp4l0-21swapper/221:59:322
134491420,9ptp4l0-21swapper/219:41:242
134491420,8ptp4l0-21swapper/222:40:262
134491420,8ptp4l0-21swapper/219:56:242
134491420,6ptp4l15726-21find00:35:263
134491420,5ptp4l0-21swapper/019:55:140
134491420,4ptp4l7006-21hddtemp_smartct19:40:150
134491420,4ptp4l5204-21iostat20:45:160
134491420,4ptp4l3504-21ntp_states23:00:220
134491420,4ptp4l20589-21apt-get20:10:113
134491420,4ptp4l18865-21iostat_ios20:05:182
134491420,4ptp4l18506-21df20:05:140
134491420,4ptp4l0-21swapper/320:15:153
134491420,4ptp4l0-21swapper/120:02:231
134491420,4ptp4l0-21swapper/119:20:191
134491420,4ptp4l0-21swapper/022:34:590
134491420,3ptp4l30646-21irqstats20:30:190
134491420,3ptp4l15783-21apt-get20:00:110
134491420,3ptp4l0-21swapper/321:25:293
25008994136,3cyclictest25-21ksoftirqd/120:20:001
134491410,9ptp4l0-21swapper/022:20:060
134491410,6ptp4l7978-21tune2fs00:20:161
134491410,5ptp4l0-21swapper/320:50:203
134491410,5ptp4l0-21swapper/320:45:103
134491410,5ptp4l0-21swapper/019:15:230
134491410,5ptp4l0-21swapper/019:15:230
134491410,4ptp4l785-21ntp_states20:35:220
134491410,4ptp4l7522-21perl22:00:142
134491410,4ptp4l31390-21ntp_states00:00:253
134491410,4ptp4l31294-21ls00:00:231
134491410,4ptp4l30489-21df_inode21:40:140
134491410,4ptp4l26368-21irqstats22:40:201
134491410,4ptp4l18751-21apt-get23:35:122
134491410,4ptp4l16455-21apt23:30:123
134491410,4ptp4l13466-21apt-get19:55:133
134491410,4ptp4l12813-21ntp_states22:10:223
134491410,4ptp4l0-21swapper/223:56:292
134491410,4ptp4l0-21swapper/022:55:280
134491410,4ptp4l0-21swapper/021:15:310
134491410,4ptp4l0-21swapper/021:00:090
134491410,4ptp4l0-21swapper/020:20:120
134491410,4ptp4l0-21swapper/019:34:240
134491410,3ptp4l25969-21df_inode23:50:153
134491410,3ptp4l25466-21hddtemp_smartct19:10:160
134491410,3ptp4l22733-21users23:40:270
134491410,3ptp4l22733-21users23:40:270
134491410,3ptp4l10419-21iostat00:25:180
134491410,3ptp4l0-21swapper/119:30:231
134491410,3ptp4l0-21swapper/000:04:430
134491400,9ptp4l0-21swapper/220:42:582
134491400,5ptp4l0-21swapper/323:00:213
134491400,5ptp4l0-21swapper/300:25:133
134491400,5ptp4l0-21swapper/122:45:301
134491400,5ptp4l0-21swapper/119:40:281
134491400,4ptp4l32405-21diskstats20:35:142
134491400,4ptp4l26139-21iostat21:30:170
134491400,4ptp4l24392-21ntp_states21:25:220
134491400,4ptp4l18737-21/usr/sbin/munin23:35:263
134491400,4ptp4l12817-21memory23:20:210
134491400,4ptp4l11476-21diskstats19:50:150
134491400,4ptp4l0-21swapper/323:40:173
134491400,4ptp4l0-21swapper/323:40:163
134491400,4ptp4l0-21swapper/321:57:483
134491400,4ptp4l0-21swapper/320:40:163
134491400,4ptp4l0-21swapper/320:00:173
134491400,4ptp4l0-21swapper/319:30:153
134491400,4ptp4l0-21swapper/300:10:263
134491400,4ptp4l0-21swapper/222:06:402
134491400,4ptp4l0-21swapper/221:53:262
134491400,4ptp4l0-21swapper/221:40:472
134491400,4ptp4l0-21swapper/219:30:242
134491400,4ptp4l0-21swapper/123:46:511
134491400,4ptp4l0-21swapper/123:35:151
134491400,4ptp4l0-21swapper/123:30:131
134491400,4ptp4l0-21swapper/122:25:281
134491400,4ptp4l0-21swapper/120:25:161
134491400,4ptp4l0-21swapper/119:11:391
134491400,4ptp4l0-21swapper/100:25:191
134491400,4ptp4l0-21swapper/100:11:431
134491400,4ptp4l0-21swapper/023:36:130
134491400,4ptp4l0-21swapper/022:42:290
134491400,4ptp4l0-21swapper/022:07:280
134491400,4ptp4l0-21swapper/022:00:160
134491400,4ptp4l0-21swapper/021:50:260
134491400,4ptp4l0-21swapper/020:19:260
134491400,4ptp4l0-21swapper/019:35:120
134491400,4ptp4l0-21swapper/000:33:020
134491400,3ptp4l8874-21apt-get19:45:122
134491400,3ptp4l4638-21apt-get20:45:102
134491400,3ptp4l4519-21apt-get23:05:020
134491400,3ptp4l30113-21apt-get22:50:110
134491400,3ptp4l11733-21iostat19:50:191
25010993933,4cyclictest41-21ksoftirqd/322:35:593
134491390,5ptp4l2501099cyclictest21:50:363
134491390,5ptp4l16447-21ls21:10:133
134491390,5ptp4l0-21swapper/223:26:042
134491390,5ptp4l0-21swapper/222:50:142
134491390,5ptp4l0-21swapper/221:40:002
134491390,5ptp4l0-21swapper/221:29:312
134491390,4ptp4l30099-21/usr/sbin/munin22:50:253
134491390,4ptp4l24098-21ps20:15:242
134491390,4ptp4l0-21swapper/323:58:013
134491390,4ptp4l0-21swapper/323:15:263
134491390,4ptp4l0-21swapper/323:05:243
134491390,4ptp4l0-21swapper/322:45:203
134491390,4ptp4l0-21swapper/322:25:223
134491390,4ptp4l0-21swapper/322:24:583
134491390,4ptp4l0-21swapper/321:44:223
134491390,4ptp4l0-21swapper/321:15:183
134491390,4ptp4l0-21swapper/321:09:103
134491390,4ptp4l0-21swapper/320:55:143
134491390,4ptp4l0-21swapper/320:05:153
134491390,4ptp4l0-21swapper/319:21:413
134491390,4ptp4l0-21swapper/319:15:133
134491390,4ptp4l0-21swapper/319:15:133
134491390,4ptp4l0-21swapper/222:48:242
134491390,4ptp4l0-21swapper/222:32:442
134491390,4ptp4l0-21swapper/221:47:122
134491390,4ptp4l0-21swapper/220:13:462
134491390,4ptp4l0-21swapper/219:25:242
134491390,4ptp4l0-21swapper/200:21:482
134491390,4ptp4l0-21swapper/123:18:121
134491390,4ptp4l0-21swapper/123:13:201
134491390,4ptp4l0-21swapper/123:13:201
134491390,4ptp4l0-21swapper/122:37:381
134491390,4ptp4l0-21swapper/121:20:241
134491390,4ptp4l0-21swapper/121:05:121
134491390,4ptp4l0-21swapper/120:58:461
134491390,4ptp4l0-21swapper/120:10:241
134491390,4ptp4l0-21swapper/119:28:411
134491390,4ptp4l0-21swapper/119:15:081
134491390,4ptp4l0-21swapper/119:15:081
134491390,4ptp4l0-21swapper/023:31:510
134491390,4ptp4l0-21swapper/023:25:080
134491390,4ptp4l0-21swapper/022:26:000
134491390,4ptp4l0-21swapper/022:17:000
134491390,4ptp4l0-21swapper/021:45:540
134491390,4ptp4l0-21swapper/021:05:320
134491390,4ptp4l0-21swapper/020:55:220
134491390,4ptp4l0-21swapper/020:29:430
134491390,4ptp4l0-21swapper/019:45:240
134491390,4ptp4l0-21swapper/019:20:220
134491390,4ptp4l0-21swapper/000:35:170
134491390,4ptp4l0-21swapper/000:15:250
134491390,3ptp4l17026-21iostat_ios23:30:192
134491390,3ptp4l16086-21df_inode20:00:142
134491390,3ptp4l15274-21ntp_states23:25:223
134491390,3ptp4l0-21swapper/022:36:250
134491390,2ptp4l0-21swapper/222:15:202
25010993832,3cyclictest41-21ksoftirqd/320:30:003
134491380,5ptp4l0-21swapper/223:15:442
134491380,4ptp4l0-21swapper/323:45:173
134491380,4ptp4l0-21swapper/322:02:363
134491380,4ptp4l0-21swapper/321:35:263
134491380,4ptp4l0-21swapper/321:22:423
134491380,4ptp4l0-21swapper/321:00:223
134491380,4ptp4l0-21swapper/320:30:143
134491380,4ptp4l0-21swapper/319:10:433
134491380,4ptp4l0-21swapper/223:11:442
134491380,4ptp4l0-21swapper/223:11:442
134491380,4ptp4l0-21swapper/221:21:352
134491380,4ptp4l0-21swapper/221:03:242
134491380,4ptp4l0-21swapper/220:25:292
134491380,4ptp4l0-21swapper/200:10:012
134491380,4ptp4l0-21swapper/123:20:221
134491380,4ptp4l0-21swapper/122:22:431
134491380,4ptp4l0-21swapper/122:10:121
134491380,4ptp4l0-21swapper/122:07:401
134491380,4ptp4l0-21swapper/121:55:161
134491380,4ptp4l0-21swapper/121:50:041
134491380,4ptp4l0-21swapper/121:42:581
134491380,4ptp4l0-21swapper/121:35:521
134491380,4ptp4l0-21swapper/121:00:281
134491380,4ptp4l0-21swapper/119:45:151
134491380,4ptp4l0-21swapper/000:08:260
134491380,3ptp4l12710-21irqstats23:20:193
134491380,3ptp4l0-21swapper/321:30:463
134491380,3ptp4l0-21swapper/220:20:422
134491380,3ptp4l0-21swapper/200:05:162
134491370,4ptp4l0-21swapper/323:10:163
134491370,4ptp4l0-21swapper/323:10:163
134491370,4ptp4l0-21swapper/121:10:121
134491370,2ptp4l1869-21kworker/2:020:50:062
134491360,3ptp4l0-21swapper/122:33:071
137891195,8phc2sys0-21swapper/319:05:283
246582124,4sleep20-21swapper/219:09:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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