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2026-09-14 - 04:43
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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 Sep 14, 2026 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1881921790,4sleep02522899cyclictest20:05:180
134491680,4ptp4l0-21swapper/100:05:241
134491610,4ptp4l0-21swapper/121:03:431
34172600,6sleep20-21swapper/223:00:222
134491600,15ptp4l0-21swapper/200:34:082
282582590,5sleep00-21swapper/022:45:160
2523199596,11cyclictest0-21swapper/300:10:223
2522899593,2cyclictest0-21swapper/022:15:180
134491580,3ptp4l0-21swapper/121:47:321
134491580,3ptp4l0-21swapper/100:25:131
2523199577,6cyclictest134491ptp4l21:20:313
134491570,4ptp4l0-21swapper/219:47:032
2523199565,6cyclictest0-21swapper/300:35:253
2523199564,6cyclictest0-21swapper/321:05:173
134491560,4ptp4l0-21swapper/121:56:271
134491560,4ptp4l0-21swapper/000:09:580
134491560,3ptp4l0-21swapper/200:13:162
134491560,3ptp4l0-21swapper/122:35:211
134491560,3ptp4l0-21swapper/121:37:181
134491560,3ptp4l0-21swapper/120:55:001
134491560,3ptp4l0-21swapper/100:00:341
134491560,3ptp4l0-21swapper/021:58:270
134491560,2ptp4l121rcu_preempt23:30:120
2523199555,7cyclictest0-21swapper/319:40:233
2523199554,7cyclictest0-21swapper/321:30:293
134491550,4ptp4l0-21swapper/100:24:051
134491550,3ptp4l0-21swapper/119:53:261
134491550,2ptp4l0-21swapper/119:30:181
2523199545,6cyclictest0-21swapper/300:30:283
2523199544,6cyclictest0-21swapper/323:50:153
2523199544,11cyclictest0-21swapper/320:15:293
134691540,10getstats0-21swapper/119:46:461
134491540,5ptp4l0-21swapper/119:08:181
134491540,4ptp4l0-21swapper/120:10:331
134491540,3ptp4l0-21swapper/000:13:390
95522530,5sleep10-21swapper/123:15:141
2523199535,6cyclictest0-21swapper/323:30:213
2523199534,11cyclictest0-21swapper/322:50:163
2523199534,11cyclictest0-21swapper/319:25:273
2523199532,6cyclictest0-21swapper/300:05:283
2523199531,6cyclictest0-21swapper/323:40:153
134691530,1getstats22674-1kworker/2:1H20:10:122
134491530,3ptp4l0-21swapper/119:25:211
134491530,3ptp4l0-21swapper/019:35:550
84862520,5sleep20-21swapper/200:20:222
2523199525,6cyclictest0-21swapper/320:34:393
2523199525,11cyclictest0-21swapper/321:35:143
2523199524,7cyclictest0-21swapper/323:35:263
2523199524,6cyclictest0-21swapper/322:55:243
2523199524,6cyclictest0-21swapper/322:55:243
2523199524,6cyclictest0-21swapper/300:00:283
2523199524,11cyclictest0-21swapper/322:25:253
2523199523,5cyclictest0-21swapper/322:15:153
2523199522,6cyclictest0-21swapper/320:20:223
134491520,4ptp4l0-21swapper/121:05:161
134491520,4ptp4l0-21swapper/119:15:071
134491520,11ptp4l0-21swapper/219:52:352
2523199515,10cyclictest0-21swapper/322:10:223
2523199514,7cyclictest0-21swapper/321:00:123
2523199514,6cyclictest0-21swapper/319:56:243
2523199514,11cyclictest0-21swapper/323:17:343
134491510,3ptp4l0-21swapper/220:21:162
2523199506,7cyclictest0-21swapper/323:25:203
2523199502,7cyclictest41-21ksoftirqd/323:00:163
2523199502,6cyclictest0-21swapper/321:25:263
134491500,9ptp4l0-21swapper/219:22:062
134491500,4ptp4l0-21swapper/121:16:481
134491500,4ptp4l0-21swapper/119:39:561
2523199495,10cyclictest0-21swapper/320:03:543
2523199492,7cyclictest0-21swapper/322:30:273
2523199492,5cyclictest0-21swapper/300:20:123
134491490,11ptp4l0-21swapper/019:05:130
2523199486,6cyclictest0-21swapper/321:45:143
2523199484,7cyclictest0-21swapper/322:40:213
2523199483,10cyclictest0-21swapper/319:35:243
2523199482,7cyclictest41-21ksoftirqd/300:15:473
2523199482,6cyclictest0-21swapper/319:30:273
134491480,7ptp4l0-21swapper/223:40:592
134491480,3ptp4l0-21swapper/122:01:411
134491480,13ptp4l0-21swapper/223:15:272
134491480,13ptp4l0-21swapper/200:05:162
2523199477,6cyclictest0-21swapper/322:37:433
2523199472,6cyclictest0-21swapper/323:55:293
2523199471,5cyclictest0-21swapper/323:10:163
2522899478,25cyclictest31290-21missed_timers00:00:260
134691470,1getstats22674-1kworker/2:1H20:00:132
134491470,9ptp4l0-21swapper/023:42:100
134491470,7ptp4l0-21swapper/020:49:340
134491470,7ptp4l0-21swapper/020:49:340
134491470,4ptp4l25-21ksoftirqd/123:12:141
134491470,4ptp4l0-21swapper/123:05:231
134491470,4ptp4l0-21swapper/121:14:191
134491470,4ptp4l0-21swapper/119:24:461
2523199466,6cyclictest0-21swapper/320:25:253
2523199464,7cyclictest0-21swapper/320:55:143
2523199461,7cyclictest0-21swapper/321:41:003
2522899462,7cyclictest0-21swapper/020:32:180
134491460,9ptp4l0-21swapper/221:51:512
134491460,4ptp4l26814-21cat19:10:302
134491460,4ptp4l2318-21gnome-shell23:33:592
134491460,4ptp4l11642-21apt-get22:10:110
134491460,4ptp4l0-21swapper/223:49:122
134491460,3ptp4l0-21swapper/122:06:551
134491460,3ptp4l0-21swapper/120:15:471
134491460,3ptp4l0-21swapper/022:01:000
134491460,11ptp4l33-21ksoftirqd/221:12:552
134491460,11ptp4l0-21swapper/222:43:232
134491460,11ptp4l0-21swapper/222:25:202
2523199456,6cyclictest0-21swapper/320:14:413
2523199456,5cyclictest0-21swapper/321:52:253
2523199454,7cyclictest0-21swapper/320:05:173
2523199454,6cyclictest0-21swapper/322:20:133
2523199452,6cyclictest0-21swapper/321:10:223
2523199452,10cyclictest0-21swapper/320:47:493
2523199452,10cyclictest0-21swapper/320:47:493
134491450,9ptp4l0-21swapper/223:51:542
134491450,9ptp4l0-21swapper/223:11:162
134491450,9ptp4l0-21swapper/222:37:212
134491450,9ptp4l0-21swapper/221:22:262
134491450,5ptp4l0-21swapper/219:09:302
134491450,4ptp4l19487-21ls23:35:201
134491450,4ptp4l0-21swapper/123:57:401
134491450,3ptp4l0-21swapper/123:45:401
134491450,3ptp4l0-21swapper/100:18:381
134491450,3ptp4l0-21swapper/000:15:170
2523199446,6cyclictest0-21swapper/323:20:553
2523199443,13cyclictest0-21swapper/319:45:173
2523199442,6cyclictest0-21swapper/322:00:233
2523199442,6cyclictest0-21swapper/319:10:183
2523199442,5cyclictest0-21swapper/322:49:513
134491440,9ptp4l0-21swapper/223:29:162
134491440,9ptp4l0-21swapper/222:08:512
134491440,9ptp4l0-21swapper/221:01:572
134491440,9ptp4l0-21swapper/000:26:270
134491440,4ptp4l27559-21apt-get19:15:120
134491440,4ptp4l0-21swapper/319:09:363
134491440,10ptp4l0-21swapper/219:15:242
2523199434,4cyclictest0-21swapper/320:45:003
2523199433,5cyclictest0-21swapper/300:25:153
2523199432,6cyclictest0-21swapper/319:20:143
2523199432,5cyclictest41-21ksoftirqd/323:45:163
134491430,9ptp4l0-21swapper/223:24:202
134491430,9ptp4l0-21swapper/222:50:352
134491430,9ptp4l0-21swapper/222:17:422
134491430,9ptp4l0-21swapper/222:14:462
134491430,9ptp4l0-21swapper/221:56:562
134491430,8ptp4l0-21swapper/221:30:302
134491430,8ptp4l0-21swapper/200:18:152
134491430,5ptp4l2439-21apt-get21:50:140
134491430,5ptp4l0-21swapper/222:30:252
134491430,5ptp4l0-21swapper/123:00:131
134491430,4ptp4l0-21swapper/122:34:581
134491430,2ptp4l111rcuc/022:55:350
134491430,2ptp4l111rcuc/022:55:350
2523199422,9cyclictest0-21swapper/319:53:393
134491420,9ptp4l0-21swapper/222:02:352
134491420,9ptp4l0-21swapper/219:58:222
134491420,9ptp4l0-21swapper/219:31:502
134491420,8ptp4l0-21swapper/221:29:332
134491420,7ptp4l31035-21ls22:50:171
134491420,5ptp4l9-21ksoftirqd/022:25:130
134491420,5ptp4l0-21swapper/121:40:281
134491420,5ptp4l0-21swapper/023:55:160
134491420,4ptp4l9352-21apt-get22:05:150
134491420,4ptp4l2439-21apt-get21:50:131
134491420,4ptp4l13902-21apt-get23:25:140
134491420,4ptp4l0-21swapper/119:55:471
134491420,4ptp4l0-21swapper/023:35:110
134491420,3ptp4l6989-21apt-get23:10:110
134491420,3ptp4l23421-21df22:35:150
2523199415,5cyclictest0-21swapper/322:07:303
2523199412,5cyclictest0-21swapper/320:35:203
134491410,5ptp4l2522999cyclictest22:10:121
134491410,5ptp4l19615-21sed22:25:211
134491410,5ptp4l18604-21diskstats20:05:151
134491410,5ptp4l0-21swapper/000:32:240
134491410,4ptp4l9496-21df23:15:120
134491410,4ptp4l2650-21iostat_ios20:40:180
134491410,4ptp4l25693-21hddtemp_smartct19:10:190
134491410,4ptp4l23630-21iostat_ios21:25:191
134491410,4ptp4l22438-21users21:20:310
134491410,4ptp4l17596-21python23:30:251
134491410,4ptp4l13798-21apt-get21:05:120
134491410,4ptp4l11606-21apt-get23:20:130
134491410,4ptp4l11022-21apt-get21:00:040
134491410,4ptp4l0-21swapper/321:15:143
134491410,4ptp4l0-21swapper/221:46:582
134491410,4ptp4l0-21swapper/123:25:131
134491410,3ptp4l5809-21ntp_states23:05:230
134491410,3ptp4l24077-21ls21:25:210
134491410,3ptp4l22645-21ls23:40:281
134491410,3ptp4l22033-21ntp_states22:30:270
134491410,3ptp4l19393-21meminfo21:15:210
134491410,3ptp4l14582-21diskstats00:35:172
134491410,3ptp4l11606-21apt-get23:20:121
134491410,3ptp4l0-21swapper/119:11:291
2523199403,3cyclictest121rcu_preempt23:07:573
25229994035,3cyclictest25-21ksoftirqd/120:50:001
25229994035,3cyclictest25-21ksoftirqd/120:50:001
134491400,6ptp4l7114-21fschecks_time19:40:171
134491400,5ptp4l0-21swapper/120:00:181
134491400,5ptp4l0-21swapper/100:31:191
134491400,4ptp4l28463-21memory20:25:201
134491400,4ptp4l28182-21diskstats21:35:140
134491400,4ptp4l26486-21meminfo22:40:221
134491400,4ptp4l0-21swapper/223:39:432
134491400,4ptp4l0-21swapper/223:05:032
134491400,4ptp4l0-21swapper/222:49:002
134491400,4ptp4l0-21swapper/222:20:132
134491400,4ptp4l0-21swapper/221:44:172
134491400,4ptp4l0-21swapper/220:56:352
134491400,4ptp4l0-21swapper/200:27:202
134491400,4ptp4l0-21swapper/200:03:042
134491400,4ptp4l0-21swapper/100:35:221
134491400,4ptp4l0-21swapper/023:50:270
134491400,4ptp4l0-21swapper/023:00:120
134491400,4ptp4l0-21swapper/019:50:170
134491400,3ptp4l8491-21ntp_states00:20:220
134491400,3ptp4l28132-21df_inode22:45:141
134491400,3ptp4l26720-21/usr/sbin/munin21:30:271
134491400,3ptp4l25211-21apt-get20:20:121
134491400,3ptp4l14893-21memory22:15:211
134491400,3ptp4l1103-21ls20:35:250
2523199396,7cyclictest41-21ksoftirqd/319:15:533
2523199393,6cyclictest41-21ksoftirqd/321:55:163
2523199390,5cyclictest0-21swapper/320:50:273
25228993933,4cyclictest9-21ksoftirqd/019:56:080
134491390,5ptp4l0-21swapper/021:45:110
134491390,4ptp4l0-21swapper/223:55:142
134491390,4ptp4l0-21swapper/221:35:182
134491390,4ptp4l0-21swapper/221:15:122
134491390,4ptp4l0-21swapper/221:06:052
134491390,4ptp4l0-21swapper/220:49:562
134491390,4ptp4l0-21swapper/220:49:562
134491390,4ptp4l0-21swapper/220:38:342
134491390,4ptp4l0-21swapper/219:39:072
134491390,4ptp4l0-21swapper/219:29:092
134491390,4ptp4l0-21swapper/122:56:321
134491390,4ptp4l0-21swapper/122:56:321
134491390,4ptp4l0-21swapper/122:20:111
134491390,4ptp4l0-21swapper/120:58:341
134491390,4ptp4l0-21swapper/100:12:151
134491390,4ptp4l0-21swapper/023:49:590
134491390,4ptp4l0-21swapper/022:53:270
134491390,4ptp4l0-21swapper/022:40:000
134491390,4ptp4l0-21swapper/022:23:160
134491390,4ptp4l0-21swapper/021:40:210
134491390,4ptp4l0-21swapper/021:10:190
134491390,4ptp4l0-21swapper/020:25:170
134491390,4ptp4l0-21swapper/020:20:120
134491390,4ptp4l0-21swapper/020:15:150
134491390,4ptp4l0-21swapper/019:25:120
134491390,4ptp4l0-21swapper/000:35:210
134491390,3ptp4l6743-21apt-get19:40:150
134491390,3ptp4l30762-21memory20:30:221
134491390,3ptp4l25928-21iostat21:30:180
134491390,3ptp4l0-21swapper/220:31:432
134491380,4ptp4l0-21swapper/222:55:362
134491380,4ptp4l0-21swapper/222:55:362
134491380,4ptp4l0-21swapper/220:51:482
134491380,4ptp4l0-21swapper/220:40:012
134491380,4ptp4l0-21swapper/220:25:222
134491380,4ptp4l0-21swapper/220:16:452
134491380,4ptp4l0-21swapper/220:06:532
134491380,4ptp4l0-21swapper/219:42:232
134491380,4ptp4l0-21swapper/020:11:010
134491380,4ptp4l0-21swapper/020:00:190
134491380,4ptp4l0-21swapper/019:45:210
134491380,4ptp4l0-21swapper/019:30:240
134491380,4ptp4l0-21swapper/019:23:540
134491380,3ptp4l0-21swapper/123:50:151
134491380,3ptp4l0-21swapper/121:20:181
134491380,3ptp4l0-21swapper/020:58:130
134491370,4ptp4l0-21swapper/120:40:191
134491370,4ptp4l0-21swapper/120:38:081
134491370,4ptp4l0-21swapper/020:51:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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