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2026-05-19 - 08:46
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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 May 19, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
53521730,5sleep11434199cyclictest19:49:591
2063221240,3sleep01434099cyclictest22:50:190
134491670,32ptp4l33-21ksoftirqd/222:57:032
31262650,6sleep00-21swapper/019:55:010
134491620,4ptp4l0-21swapper/020:05:200
134491620,24ptp4l0-21swapper/322:55:543
134491600,3ptp4l21830-21apt-get21:45:153
154082590,4sleep00-21swapper/020:20:160
134491590,4ptp4l18010-21meminfo20:25:181
134491590,3ptp4l0-21swapper/122:35:541
134491580,4ptp4l2892-21apt-get21:05:032
134491580,3ptp4l0-21swapper/122:05:221
134491580,3ptp4l0-21swapper/023:45:190
134491570,4ptp4l0-21swapper/221:44:232
134491570,4ptp4l0-21swapper/123:01:181
134491570,4ptp4l0-21swapper/022:31:140
134491570,3ptp4l0-21swapper/219:28:092
134491560,3ptp4l0-21swapper/223:20:242
134491560,3ptp4l0-21swapper/219:23:572
134491550,4ptp4l0-21swapper/222:32:582
134491550,4ptp4l0-21swapper/021:50:180
134491550,3ptp4l0-21swapper/320:55:413
134491550,3ptp4l0-21swapper/122:11:481
134491540,4ptp4l0-21swapper/022:25:580
134491540,3ptp4l0-21swapper/119:18:501
134491540,2ptp4l0-21swapper/023:36:020
134491540,13ptp4l12429-21hddtemp_smartct19:05:131
134491530,5ptp4l0-21swapper/200:15:152
134491530,4ptp4l0-21swapper/320:13:263
134491530,4ptp4l0-21swapper/019:26:540
134491530,3ptp4l30997-21tr20:55:142
134491520,4ptp4l0-21swapper/322:05:393
134491520,4ptp4l0-21swapper/120:30:351
134491520,4ptp4l0-21swapper/100:25:251
134491520,4ptp4l0-21swapper/020:54:290
134491520,3ptp4l0-21swapper/221:31:452
14341995110,8cyclictest25-21ksoftirqd/123:14:591
134491510,4ptp4l1434399cyclictest21:35:263
134491510,4ptp4l0-21swapper/321:17:583
134491510,4ptp4l0-21swapper/221:49:352
134491510,4ptp4l0-21swapper/119:25:361
134491510,4ptp4l0-21swapper/021:39:310
134491510,4ptp4l0-21swapper/000:19:020
134491510,3ptp4l0-21swapper/323:12:343
134491510,3ptp4l0-21swapper/121:20:281
134491510,3ptp4l0-21swapper/023:05:000
134491510,3ptp4l0-21swapper/022:09:010
134491510,11ptp4l0-21swapper/119:36:101
134491510,10ptp4l12312-21diskstats19:05:130
134491500,4ptp4l0-21swapper/320:24:043
134491500,4ptp4l0-21swapper/219:57:132
134491500,4ptp4l0-21swapper/123:47:451
134491500,4ptp4l0-21swapper/023:57:180
134491500,4ptp4l0-21swapper/023:33:260
134491500,4ptp4l0-21swapper/023:24:050
134491500,4ptp4l0-21swapper/021:14:380
134491500,3ptp4l0-21swapper/319:53:153
134491500,3ptp4l0-21swapper/119:20:131
134491490,5ptp4l0-21swapper/123:54:201
134491490,4ptp4l0-21swapper/323:30:313
134491490,4ptp4l0-21swapper/322:20:453
134491490,4ptp4l0-21swapper/300:21:043
134491490,4ptp4l0-21swapper/222:18:262
134491490,4ptp4l0-21swapper/219:14:062
134491490,4ptp4l0-21swapper/122:03:111
134491490,4ptp4l0-21swapper/121:42:371
134491490,4ptp4l0-21swapper/121:36:501
134491490,4ptp4l0-21swapper/021:47:000
134491490,4ptp4l0-21swapper/019:24:200
134491490,3ptp4l0-21swapper/119:11:291
134491490,3ptp4l0-21swapper/022:39:290
134491490,3ptp4l0-21swapper/021:16:320
134491490,17ptp4l41-21ksoftirqd/321:25:593
1434199485,8cyclictest25-21ksoftirqd/120:10:141
134491480,9ptp4l11557-21apt-get19:05:013
134491480,4ptp4l0-21swapper/323:51:393
134491480,4ptp4l0-21swapper/323:03:353
134491480,4ptp4l0-21swapper/219:31:502
134491480,4ptp4l0-21swapper/100:31:361
134491480,4ptp4l0-21swapper/023:28:280
134491480,4ptp4l0-21swapper/022:10:240
134491480,4ptp4l0-21swapper/000:33:180
134491480,3ptp4l0-21swapper/221:55:242
134491480,3ptp4l0-21swapper/221:55:242
134491480,3ptp4l0-21swapper/120:41:091
134491480,17ptp4l9-21ksoftirqd/020:02:120
14341994715,4cyclictest25-21ksoftirqd/120:35:141
134491470,4ptp4l0-21swapper/322:38:553
134491470,4ptp4l0-21swapper/122:59:451
134491470,4ptp4l0-21swapper/120:09:551
134491470,4ptp4l0-21swapper/100:05:561
134491470,4ptp4l0-21swapper/020:49:040
134491470,3ptp4l0-21swapper/219:42:542
134491460,7ptp4l0-21swapper/019:10:010
134491460,4ptp4l9500-21ls21:15:291
134491460,4ptp4l0-21swapper/322:11:463
134491460,4ptp4l0-21swapper/319:49:223
134491460,4ptp4l0-21swapper/021:31:210
134491460,3ptp4l0-21swapper/319:57:033
134491460,3ptp4l0-21swapper/200:20:102
134491460,3ptp4l0-21swapper/019:40:150
14341994534,2cyclictest25-21ksoftirqd/120:15:241
14341994515,4cyclictest25-21ksoftirqd/122:46:071
14341994510,7cyclictest25-21ksoftirqd/119:50:241
134691450,5getstats1434199cyclictest22:25:371
134691440,11getstats0-21swapper/321:10:263
134491440,5ptp4l31253-21apt-get22:05:122
134491440,4ptp4l5976-21apt-get23:30:112
134491440,4ptp4l0-21swapper/322:41:473
134491440,3ptp4l0-21swapper/222:54:572
134491440,3ptp4l0-21swapper/000:07:500
134491440,10ptp4l26215-21cpuspeed_turbos19:35:200
14341994312,8cyclictest25-21ksoftirqd/100:10:161
134491430,9ptp4l0-21swapper/223:13:462
134491430,9ptp4l0-21swapper/221:17:032
134491430,9ptp4l0-21swapper/219:52:272
134491430,6ptp4l6816-21ntp_states21:10:221
134491430,5ptp4l0-21swapper/322:00:173
134491430,4ptp4l0-21swapper/123:27:371
134491430,3ptp4l12765-21apt-get22:35:122
134491430,3ptp4l0-21swapper/021:01:460
134491430,10ptp4l0-21swapper/221:28:192
14342994237,3cyclictest33-21ksoftirqd/219:20:012
14341994237,3cyclictest25-21ksoftirqd/122:25:011
14341994216,7cyclictest25-21ksoftirqd/121:04:041
134691420,9getstats0-21swapper/320:45:483
134691420,10getstats0-21swapper/320:37:113
134691420,10getstats0-21swapper/300:36:233
134491420,9ptp4l0-21swapper/222:40:312
134491420,9ptp4l0-21swapper/222:23:372
134491420,9ptp4l0-21swapper/219:05:032
134491420,9ptp4l0-21swapper/200:38:362
134491420,8ptp4l0-21swapper/223:02:162
134491420,5ptp4l0-21swapper/220:40:242
134491420,5ptp4l0-21swapper/021:20:150
134491420,4ptp4l12943-21apt-get23:45:162
134491420,4ptp4l0-21swapper/319:34:293
134491420,4ptp4l0-21swapper/300:05:203
134491420,4ptp4l0-21swapper/220:32:242
134491420,4ptp4l0-21swapper/123:05:101
134491420,4ptp4l0-21swapper/100:04:481
134491420,3ptp4l24427-21diskstats21:50:141
14342994130,8cyclictest33-21ksoftirqd/200:25:412
14341994112,6cyclictest25-21ksoftirqd/119:34:301
134691410,9getstats0-21swapper/320:05:413
134691410,10getstats0-21swapper/322:45:063
134691410,10getstats0-21swapper/321:40:423
134691410,10getstats0-21swapper/321:22:343
134691410,10getstats0-21swapper/320:44:363
134691410,10getstats0-21swapper/319:27:123
134491410,8ptp4l0-21swapper/023:50:210
134491410,5ptp4l1247-21latency_hist23:20:003
134491410,5ptp4l0-21swapper/320:50:203
134491410,5ptp4l0-21swapper/220:50:222
134491410,5ptp4l0-21swapper/120:45:261
134491410,5ptp4l0-21swapper/022:40:100
134491410,4ptp4l4847-21users19:55:290
134491410,4ptp4l26183-21wc21:55:013
134491410,4ptp4l14370-21apt-get19:10:113
134491410,4ptp4l0-21swapper/321:30:063
134491410,4ptp4l0-21swapper/321:05:123
134491410,4ptp4l0-21swapper/221:50:212
134491410,4ptp4l0-21swapper/220:10:152
134491410,4ptp4l0-21swapper/000:25:190
134491410,3ptp4l21657-21apt-get20:35:140
134491410,3ptp4l18781-21ls21:35:252
134491410,3ptp4l17061-21apt-get20:25:112
134491410,3ptp4l14181-21ls21:25:250
134491410,3ptp4l13558-21ntp_states20:15:220
14342994034,3cyclictest33-21ksoftirqd/223:45:012
14342994034,3cyclictest33-21ksoftirqd/223:45:012
1434199409,4cyclictest25-21ksoftirqd/123:40:261
1434199409,4cyclictest25-21ksoftirqd/123:40:261
1434199406,5cyclictest25-21ksoftirqd/123:20:281
1434199405,3cyclictest121rcu_preempt23:15:141
1434199401,7cyclictest25-21ksoftirqd/119:55:201
1434199401,4cyclictest25-21ksoftirqd/121:30:221
134691400,10getstats0-21swapper/321:04:273
134691400,10getstats0-21swapper/300:11:393
134491400,5ptp4l29036-21sed22:00:152
134491400,5ptp4l0-21swapper/221:00:172
134491400,5ptp4l0-21swapper/122:15:291
134491400,5ptp4l0-21swapper/020:10:180
134491400,4ptp4l24538-21iostat20:40:190
134491400,4ptp4l15711-21memory20:20:171
134491400,4ptp4l0-21swapper/322:31:043
134491400,4ptp4l0-21swapper/319:16:433
134491400,4ptp4l0-21swapper/222:25:132
134491400,4ptp4l0-21swapper/221:10:122
134491400,4ptp4l0-21swapper/220:09:482
134491400,4ptp4l0-21swapper/220:00:182
134491400,4ptp4l0-21swapper/123:37:031
134491400,4ptp4l0-21swapper/119:40:241
134491400,4ptp4l0-21swapper/023:40:150
134491400,4ptp4l0-21swapper/023:40:140
134491400,4ptp4l0-21swapper/022:56:540
134491400,4ptp4l0-21swapper/022:00:230
134491400,4ptp4l0-21swapper/021:41:280
134491400,4ptp4l0-21swapper/020:56:300
134491400,4ptp4l0-21swapper/020:28:200
134491400,4ptp4l0-21swapper/019:34:540
134491400,4ptp4l0-21swapper/000:20:150
134491400,4ptp4l0-21swapper/000:04:580
134491400,3ptp4l30430-21meminfo00:20:201
134491400,3ptp4l25172-21diskstats00:10:160
134491400,3ptp4l22369-21apt-get00:05:122
134491400,3ptp4l19925-21iostat20:30:190
134491400,3ptp4l16670-21apt-get19:15:140
134491400,3ptp4l15067-21df_inode20:20:122
1434199397,3cyclictest25-21ksoftirqd/123:55:111
1434199392,8cyclictest25-21ksoftirqd/123:30:231
134491390,5ptp4l0-21swapper/000:37:360
134491390,4ptp4l4805-21mailstats22:15:273
134491390,4ptp4l28034-21latency00:15:203
134491390,4ptp4l19415-21users23:55:243
134491390,4ptp4l11406-21ls22:30:211
134491390,4ptp4l0-21swapper/323:20:143
134491390,4ptp4l0-21swapper/323:05:113
134491390,4ptp4l0-21swapper/322:25:213
134491390,4ptp4l0-21swapper/321:55:273
134491390,4ptp4l0-21swapper/321:55:273
134491390,4ptp4l0-21swapper/320:34:333
134491390,4ptp4l0-21swapper/300:31:523
134491390,4ptp4l0-21swapper/223:57:342
134491390,4ptp4l0-21swapper/223:37:242
134491390,4ptp4l0-21swapper/223:18:222
134491390,4ptp4l0-21swapper/222:45:212
134491390,4ptp4l0-21swapper/221:21:432
134491390,4ptp4l0-21swapper/219:45:202
134491390,4ptp4l0-21swapper/122:52:571
134491390,4ptp4l0-21swapper/121:05:051
134491390,4ptp4l0-21swapper/100:15:121
134491390,4ptp4l0-21swapper/023:15:250
134491390,4ptp4l0-21swapper/023:12:540
134491390,4ptp4l0-21swapper/023:00:020
134491390,4ptp4l0-21swapper/022:20:210
134491390,4ptp4l0-21swapper/022:15:280
134491390,4ptp4l0-21swapper/021:55:230
134491390,4ptp4l0-21swapper/021:55:230
134491390,4ptp4l0-21swapper/019:45:270
134491390,3ptp4l4241-21df00:35:141
134491390,3ptp4l30045-21ls19:40:273
134491390,3ptp4l0-21swapper/223:26:242
134491390,3ptp4l0-21swapper/223:05:502
134491390,3ptp4l0-21swapper/220:46:542
134491390,3ptp4l0-21swapper/219:37:532
134491390,3ptp4l0-21swapper/022:45:100
14341993834,2cyclictest25-21ksoftirqd/121:45:161
134691380,10getstats0-21swapper/323:25:263
134491380,4ptp4l0-21swapper/323:40:023
134491380,4ptp4l0-21swapper/323:40:023
134491380,4ptp4l0-21swapper/323:35:443
134491380,4ptp4l0-21swapper/322:50:133
134491380,4ptp4l0-21swapper/320:17:453
134491380,4ptp4l0-21swapper/320:00:013
134491380,4ptp4l0-21swapper/319:21:203
134491380,4ptp4l0-21swapper/300:02:273
134491380,4ptp4l0-21swapper/223:52:242
134491380,4ptp4l0-21swapper/220:19:142
134491380,4ptp4l0-21swapper/200:31:532
134491380,4ptp4l0-21swapper/200:10:482
134491380,4ptp4l0-21swapper/121:55:291
134491380,4ptp4l0-21swapper/121:55:291
134491380,4ptp4l0-21swapper/121:25:491
134491380,4ptp4l0-21swapper/120:56:591
134491380,4ptp4l0-21swapper/120:50:221
134491380,4ptp4l0-21swapper/021:05:080
134491380,3ptp4l0-21swapper/319:35:323
134491380,3ptp4l0-21swapper/222:10:342
134491380,3ptp4l0-21swapper/220:36:032
134491380,3ptp4l0-21swapper/200:01:252
134491380,3ptp4l0-21swapper/120:01:191
1434199373,2cyclictest121rcu_preempt22:40:171
134491370,4ptp4l1434399cyclictest23:46:023
134491370,4ptp4l0-21swapper/300:27:383
134491370,3ptp4l0-21swapper/320:27:413
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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