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2026-01-06 - 08:57
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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 Tue Jan 06, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2963621610,6sleep03008699cyclictest23:45:180
134491730,5ptp4l3344-21load19:20:201
3008999690,27cyclictest2430-21cat22:45:253
134491650,2ptp4l41-21ksoftirqd/300:20:133
134491610,3ptp4l7708-21apt-get20:40:121
134491600,4ptp4l0-21swapper/223:17:582
3008999597,19cyclictest134491ptp4l00:25:203
3008999581,17cyclictest137891phc2sys20:43:593
134491580,9ptp4l0-21swapper/221:55:262
134491580,3ptp4l0-21swapper/319:37:073
322492570,5sleep125-21ksoftirqd/123:50:201
134491570,4ptp4l0-21swapper/020:15:120
134491570,3ptp4l13219-21apt-get00:20:122
134491570,3ptp4l0-21swapper/221:30:262
134491570,3ptp4l0-21swapper/221:30:262
134491570,3ptp4l0-21swapper/121:37:251
134491560,4ptp4l0-21swapper/321:38:213
134491550,4ptp4l212-21systemd-journal23:20:452
134491550,4ptp4l0-21swapper/222:41:102
134491550,4ptp4l0-21swapper/221:03:392
134491550,4ptp4l0-21swapper/121:26:101
134491550,4ptp4l0-21swapper/119:35:251
3008999540,22cyclictest14225-21chrt22:02:553
3008999540,22cyclictest14225-21chrt22:02:553
134491540,4ptp4l0-21swapper/221:40:402
134491540,4ptp4l0-21swapper/220:11:222
134491540,4ptp4l0-21swapper/220:06:172
134491540,4ptp4l0-21swapper/200:02:382
134491540,4ptp4l0-21swapper/121:16:241
134491540,4ptp4l0-21swapper/021:28:080
134491530,4ptp4l0-21swapper/223:45:042
134491530,4ptp4l0-21swapper/223:09:302
134491530,4ptp4l0-21swapper/220:36:092
134491530,4ptp4l0-21swapper/123:57:061
134491530,4ptp4l0-21swapper/123:11:101
134491530,4ptp4l0-21swapper/122:38:421
134491530,4ptp4l0-21swapper/100:11:281
134491530,4ptp4l0-21swapper/021:02:190
134491530,3ptp4l0-21swapper/200:09:022
3008999520,27cyclictest14242-21seq20:53:283
134491520,4ptp4l0-21swapper/221:48:262
134491520,4ptp4l0-21swapper/221:38:172
134491520,4ptp4l0-21swapper/220:25:542
134491520,4ptp4l0-21swapper/000:06:230
134491520,3ptp4l0-21swapper/120:07:351
134491520,3ptp4l0-21swapper/020:30:590
134491520,13ptp4l5010-21df_inode19:25:150
3008999511,16cyclictest134691getstats19:43:113
134491510,4ptp4l0-21swapper/222:26:072
134491510,4ptp4l0-21swapper/219:43:032
134491510,14ptp4l0-21swapper/023:50:040
3008999500,15cyclictest137891phc2sys22:30:263
3008999500,15cyclictest137891phc2sys22:30:263
134491500,4ptp4l0-21swapper/223:55:092
134491500,4ptp4l0-21swapper/221:20:262
134491500,4ptp4l0-21swapper/121:23:481
134491500,4ptp4l0-21swapper/120:25:371
134491500,4ptp4l0-21swapper/020:59:460
134491500,4ptp4l0-21swapper/019:30:140
134491500,3ptp4l0-21swapper/222:18:402
134491500,3ptp4l0-21swapper/200:35:322
134491500,3ptp4l0-21swapper/022:17:240
134491500,3ptp4l0-21swapper/021:17:460
134491500,3ptp4l0-21swapper/020:14:020
3008999490,17cyclictest134491ptp4l23:57:533
30088994937,10cyclictest33-21ksoftirqd/220:00:002
134491490,4ptp4l0-21swapper/222:24:542
134491490,4ptp4l0-21swapper/121:44:371
134491490,4ptp4l0-21swapper/119:15:151
134491490,3ptp4l0-21swapper/221:07:252
134491490,3ptp4l0-21swapper/123:03:161
134491490,15ptp4l0-21swapper/122:45:571
134491480,5ptp4l0-21swapper/219:07:322
134491480,4ptp4l0-21swapper/222:31:092
134491480,4ptp4l0-21swapper/222:31:092
134491480,4ptp4l0-21swapper/221:28:362
134491480,4ptp4l0-21swapper/220:41:062
134491480,4ptp4l0-21swapper/219:54:442
134491480,4ptp4l0-21swapper/219:46:552
134491480,4ptp4l0-21swapper/100:37:351
134491480,4ptp4l0-21swapper/021:45:520
134491480,3ptp4l0-21swapper/223:00:482
134491480,3ptp4l0-21swapper/219:39:142
134491480,10ptp4l0-21swapper/021:33:580
134491480,10ptp4l0-21swapper/021:33:580
3008999478,37cyclictest0-21swapper/320:26:483
134491470,4ptp4l0-21swapper/221:12:352
134491470,4ptp4l0-21swapper/200:33:492
134491470,4ptp4l0-21swapper/119:49:401
134491470,3ptp4l0-21swapper/200:25:152
134491470,14ptp4l0-21swapper/219:22:402
134491470,10ptp4l0-21swapper/123:35:151
134491460,4ptp4l4704-21apt-get19:25:133
134491460,4ptp4l0-21swapper/221:50:552
134491460,12ptp4l25-21ksoftirqd/120:53:091
3008999450,26cyclictest18109-21taskset19:52:483
134491450,4ptp4l0-21swapper/222:53:282
134491450,3ptp4l0-21swapper/119:59:041
134491450,10ptp4l0-21swapper/122:30:021
134491450,10ptp4l0-21swapper/122:30:021
134491440,9ptp4l0-21swapper/022:49:480
134491440,9ptp4l0-21swapper/022:22:060
134491440,5ptp4l12333-21apt-get22:00:122
134491440,5ptp4l12333-21apt-get22:00:122
134491440,4ptp4l0-21swapper/319:06:233
134491440,4ptp4l0-21swapper/220:02:022
134491440,4ptp4l0-21swapper/219:11:552
134491440,4ptp4l0-21swapper/219:11:552
134491440,4ptp4l0-21swapper/022:59:390
134491440,4ptp4l0-21swapper/022:02:520
134491440,4ptp4l0-21swapper/022:02:520
134491440,3ptp4l0-21swapper/220:15:592
134491440,3ptp4l0-21swapper/121:06:071
3008999430,27cyclictest32567-21taskset20:21:093
134491430,9ptp4l0-21swapper/021:14:000
134491430,6ptp4l0-21swapper/321:00:223
134491430,5ptp4l10962-21meminfo21:55:200
134491430,5ptp4l0-21swapper/320:15:013
134491430,4ptp4l22003-21apt-get23:30:123
134491430,4ptp4l0-21swapper/222:05:222
134491430,4ptp4l0-21swapper/119:44:181
134491430,2ptp4l121rcu_preempt22:40:013
134491430,10ptp4l0-21swapper/100:28:381
134491420,8ptp4l0-21swapper/319:30:183
134491420,5ptp4l5822-21/usr/sbin/munin20:35:180
134491420,5ptp4l0-21swapper/323:20:173
134491420,5ptp4l0-21swapper/321:55:143
134491420,5ptp4l0-21swapper/300:00:183
134491420,5ptp4l0-21swapper/220:45:162
134491420,5ptp4l0-21swapper/020:25:120
134491420,4ptp4l3321-21df21:40:140
134491420,4ptp4l26739-21iostat_ios21:20:180
134491420,4ptp4l22781-21users20:00:280
134491420,4ptp4l12471-21irqstats19:40:200
134491420,4ptp4l10267-21apt-get23:05:123
134491420,4ptp4l0-21swapper/222:40:002
134491420,4ptp4l0-21swapper/120:02:201
134491420,3ptp4l7004-21apt-get19:30:121
134491420,3ptp4l2395-21apt-get19:20:113
134491420,3ptp4l21274-21ls23:25:273
134491420,3ptp4l16939-21apt-get21:00:141
134491420,3ptp4l0-21swapper/223:12:012
134491420,3ptp4l0-21swapper/100:22:451
3008999412,23cyclictest0-21swapper/321:23:003
3008999412,23cyclictest0-21swapper/320:35:133
3008999410,23cyclictest134491ptp4l00:30:553
134491410,5ptp4l1593-21ls19:15:293
134491410,5ptp4l0-21swapper/322:15:183
134491410,5ptp4l0-21swapper/321:15:203
134491410,5ptp4l0-21swapper/222:10:182
134491410,5ptp4l0-21swapper/123:05:191
134491410,5ptp4l0-21swapper/019:56:000
134491410,4ptp4l30827-21apt-get20:20:132
134491410,4ptp4l28305-21users23:40:281
134491410,4ptp4l22665-21ntp_states21:10:223
134491410,4ptp4l22313-21diskstats23:30:142
134491410,4ptp4l14361-21hddtemp_smartct19:45:160
134491410,4ptp4l13584-21ls23:10:203
134491410,4ptp4l11255-21iostat_ios00:15:201
134491410,4ptp4l10316-21/usr/sbin/munin20:45:140
134491410,4ptp4l0-21swapper/322:12:443
134491410,4ptp4l0-21swapper/321:25:263
134491410,4ptp4l0-21swapper/319:55:143
134491410,4ptp4l0-21swapper/100:05:151
134491410,4ptp4l0-21swapper/022:40:280
134491410,4ptp4l0-21swapper/000:38:450
134491410,4ptp4l0-21swapper/000:15:140
134491410,3ptp4l6128-21ls19:25:271
134491410,3ptp4l5250-21users00:00:260
134491410,3ptp4l334-21ls23:50:272
134491410,3ptp4l26633-21apt-get23:40:112
134491410,3ptp4l15204-21iostat22:05:160
134491410,3ptp4l12562-21apt-get23:10:100
134491410,3ptp4l0-21swapper/123:24:331
3008999401,14cyclictest134491ptp4l21:48:243
30087994035,3cyclictest25-21ksoftirqd/121:49:591
30087994033,3cyclictest25-21ksoftirqd/120:20:001
134491400,5ptp4l29888-21sort19:10:000
134491400,5ptp4l10516-21df_abs23:05:140
134491400,5ptp4l0-21swapper/320:00:133
134491400,5ptp4l0-21swapper/319:45:193
134491400,5ptp4l0-21swapper/223:25:122
134491400,5ptp4l0-21swapper/023:20:270
134491400,5ptp4l0-21swapper/022:11:540
134491400,5ptp4l0-21swapper/020:08:470
134491400,4ptp4l5626-21/usr/sbin/munin22:55:242
134491400,4ptp4l31576-21/usr/sbin/munin22:40:181
134491400,4ptp4l0-21swapper/323:50:283
134491400,4ptp4l0-21swapper/323:45:223
134491400,4ptp4l0-21swapper/323:00:223
134491400,4ptp4l0-21swapper/322:50:253
134491400,4ptp4l0-21swapper/322:35:163
134491400,4ptp4l0-21swapper/321:30:103
134491400,4ptp4l0-21swapper/321:30:103
134491400,4ptp4l0-21swapper/321:05:123
134491400,4ptp4l0-21swapper/320:05:173
134491400,4ptp4l0-21swapper/319:10:153
134491400,4ptp4l0-21swapper/319:10:153
134491400,4ptp4l0-21swapper/300:10:243
134491400,4ptp4l0-21swapper/223:36:012
134491400,4ptp4l0-21swapper/219:15:262
134491400,4ptp4l0-21swapper/200:15:222
134491400,4ptp4l0-21swapper/200:14:422
134491400,4ptp4l0-21swapper/123:46:201
134491400,4ptp4l0-21swapper/123:15:151
134491400,4ptp4l0-21swapper/122:50:501
134491400,4ptp4l0-21swapper/122:15:121
134491400,4ptp4l0-21swapper/100:31:391
134491400,4ptp4l0-21swapper/100:00:101
134491400,4ptp4l0-21swapper/023:56:060
134491400,4ptp4l0-21swapper/023:35:160
134491400,4ptp4l0-21swapper/023:30:180
134491400,4ptp4l0-21swapper/023:29:450
134491400,4ptp4l0-21swapper/023:00:540
134491400,4ptp4l0-21swapper/022:50:220
134491400,4ptp4l0-21swapper/022:38:040
134491400,4ptp4l0-21swapper/022:34:490
134491400,4ptp4l0-21swapper/022:34:490
134491400,4ptp4l0-21swapper/021:05:220
134491400,4ptp4l0-21swapper/020:50:050
134491400,4ptp4l0-21swapper/019:39:170
134491400,4ptp4l0-21swapper/000:31:540
134491400,4ptp4l0-21swapper/000:29:250
134491400,3ptp4l7954-21meminfo19:30:202
134491400,3ptp4l31673-21irqstats20:20:211
134491400,3ptp4l31396-21iostat20:20:200
134491400,3ptp4l25762-21users22:25:300
134491400,3ptp4l18447-21apt-get00:35:153
134491400,3ptp4l15482-21irqstats22:05:171
134491400,3ptp4l0-21swapper/320:30:273
3008999392,23cyclictest0-21swapper/320:49:173
30087993933,3cyclictest25-21ksoftirqd/123:30:261
134491390,5ptp4l6368-21sed22:55:193
134491390,5ptp4l0-21swapper/320:55:273
134491390,5ptp4l0-21swapper/220:55:122
134491390,4ptp4l0-21swapper/323:40:133
134491390,4ptp4l0-21swapper/322:25:233
134491390,4ptp4l0-21swapper/322:20:253
134491390,4ptp4l0-21swapper/322:05:183
134491390,4ptp4l0-21swapper/321:50:153
134491390,4ptp4l0-21swapper/320:10:413
134491390,4ptp4l0-21swapper/300:09:013
134491390,4ptp4l0-21swapper/222:45:162
134491390,4ptp4l0-21swapper/220:30:132
134491390,4ptp4l0-21swapper/123:29:021
134491390,4ptp4l0-21swapper/122:25:221
134491390,4ptp4l0-21swapper/121:58:561
134491390,4ptp4l0-21swapper/121:32:171
134491390,4ptp4l0-21swapper/121:32:171
134491390,4ptp4l0-21swapper/121:10:121
134491390,4ptp4l0-21swapper/120:57:141
134491390,4ptp4l0-21swapper/120:48:021
134491390,4ptp4l0-21swapper/120:35:061
134491390,4ptp4l0-21swapper/120:30:151
134491390,4ptp4l0-21swapper/120:10:231
134491390,4ptp4l0-21swapper/119:54:051
134491390,4ptp4l0-21swapper/119:10:071
134491390,4ptp4l0-21swapper/119:10:071
134491390,4ptp4l0-21swapper/023:15:040
134491390,4ptp4l0-21swapper/021:35:330
134491390,4ptp4l0-21swapper/020:40:040
134491390,4ptp4l0-21swapper/019:50:240
134491390,4ptp4l0-21swapper/019:23:190
134491390,4ptp4l0-21swapper/019:18:400
134491390,4ptp4l0-21swapper/000:20:170
134491390,4ptp4l0-21swapper/000:10:150
134491390,3ptp4l11798-21ntp_states00:15:243
134491390,3ptp4l0-21swapper/122:55:221
134491390,3ptp4l0-21swapper/019:11:350
134491390,3ptp4l0-21swapper/019:11:350
134491390,2ptp4l0-21swapper/021:50:190
134491380,4ptp4l0-21swapper/323:35:233
134491380,4ptp4l0-21swapper/323:15:253
134491380,4ptp4l0-21swapper/221:17:252
134491380,4ptp4l0-21swapper/220:50:192
134491380,4ptp4l0-21swapper/122:10:211
134491380,4ptp4l0-21swapper/121:52:161
134491380,3ptp4l0-21swapper/321:40:143
134491380,3ptp4l0-21swapper/122:02:201
134491380,3ptp4l0-21swapper/122:02:201
134491370,4ptp4l0-21swapper/219:25:302
134491370,4ptp4l0-21swapper/122:21:441
134491370,4ptp4l0-21swapper/023:42:440
134491360,4ptp4l0-21swapper/119:09:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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