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2026-07-07 - 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 Tue Jul 07, 2026 00:45:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
526622420,3sleep20-21swapper/219:09:402
506121970,4sleep00-21swapper/019:08:560
1228421930,4sleep10-21swapper/119:06:461
1973821910,7sleep319749-21sh19:09:153
36521450,5sleep21522799cyclictest21:00:162
15228996811,18cyclictest22924-21cron20:39:593
15225996426,6cyclictest9-21ksoftirqd/020:25:010
15225996326,6cyclictest9-21ksoftirqd/019:35:000
15225996230,4cyclictest9-21ksoftirqd/020:05:000
15225996129,3cyclictest9-21ksoftirqd/020:20:010
15228996011,11cyclictest13403-21taskset20:18:443
15225996023,5cyclictest9-21ksoftirqd/023:40:000
1522899598,9cyclictest7029-21taskset23:34:333
15225995923,6cyclictest9-21ksoftirqd/021:20:000
15225995921,6cyclictest9-21ksoftirqd/021:50:280
134491590,4ptp4l0-21swapper/122:49:011
134491590,4ptp4l0-21swapper/019:25:330
1522899589,10cyclictest14418-21taskset23:50:043
1522899588,11cyclictest6693-21taskset21:14:113
1522899587,16cyclictest0-21swapper/300:38:433
1522899587,12cyclictest17892-21chrt19:19:403
1522899587,12cyclictest13701-21chrt22:35:533
1522899586,10cyclictest20416-21runrttasks20:32:143
15225995828,6cyclictest9-21ksoftirqd/022:50:170
15225995826,6cyclictest9-21ksoftirqd/021:35:270
15225995825,6cyclictest9-21ksoftirqd/020:05:290
15225995822,6cyclictest9-21ksoftirqd/022:10:230
134491580,4ptp4l0-21swapper/122:39:561
134491580,3ptp4l0-21swapper/023:30:250
134491580,3ptp4l0-21swapper/022:15:170
1522899579,11cyclictest2522-21taskset00:32:023
1522899577,16cyclictest32391-21chrt22:08:253
1522899577,16cyclictest0-21swapper/322:12:203
15228995710,11cyclictest6914-21taskset22:22:123
15225995726,5cyclictest9-21ksoftirqd/021:30:240
15225995725,5cyclictest9-21ksoftirqd/020:50:280
15225995723,6cyclictest9-21ksoftirqd/020:10:140
15225995721,7cyclictest9-21ksoftirqd/023:40:180
15225995720,6cyclictest9-21ksoftirqd/000:30:250
134491570,3ptp4l0-21swapper/320:13:013
134491570,3ptp4l0-21swapper/121:59:011
134491570,3ptp4l0-21swapper/121:16:581
134491570,3ptp4l0-21swapper/019:11:380
1522899569,17cyclictest15551-21sendmail-mta19:14:063
1522899568,18cyclictest3907-21chrt19:57:483
1522899568,11cyclictest9381-21chrt22:29:203
1522899567,17cyclictest1347-21chrt19:51:063
1522899566,11cyclictest27217-21runrttasks20:45:553
1522899566,11cyclictest20635-21taskset22:51:103
15228995610,11cyclictest22809-21taskset21:46:253
1522799565,13cyclictest0-21swapper/222:10:102
15225995627,6cyclictest9-21ksoftirqd/019:45:000
15225995625,6cyclictest9-21ksoftirqd/022:05:150
15225995625,4cyclictest9-21ksoftirqd/022:40:210
15225995624,7cyclictest9-21ksoftirqd/022:00:290
15225995624,3cyclictest9-21ksoftirqd/021:05:180
15225995623,5cyclictest9-21ksoftirqd/021:45:150
15225995622,5cyclictest9-21ksoftirqd/022:35:270
15225995621,8cyclictest9-21ksoftirqd/019:15:130
15225995619,6cyclictest9-21ksoftirqd/023:50:160
134491560,3ptp4l0-21swapper/023:57:070
1522899559,11cyclictest4542-21taskset23:27:113
1522899558,16cyclictest4807-21chrt22:19:493
1522899557,17cyclictest6170-21chrt20:02:053
1522899557,17cyclictest32122-21chrt20:59:543
1522899557,17cyclictest15909-21chrt20:23:183
1522899557,12cyclictest24646-21taskset19:32:413
1522899556,16cyclictest25243-21taskset20:44:593
1522899553,18cyclictest11686-21apt-get23:45:013
1522899553,18cyclictest11686-21apt-get23:45:013
1522799555,6cyclictest0-21swapper/222:30:252
1522799550,2cyclictest137891phc2sys21:05:182
15225995525,8cyclictest9-21ksoftirqd/000:15:230
15225995525,3cyclictest9-21ksoftirqd/020:35:260
15225995523,5cyclictest9-21ksoftirqd/020:30:180
15225995522,4cyclictest9-21ksoftirqd/021:20:190
15225995521,5cyclictest9-21ksoftirqd/019:35:130
15225995521,3cyclictest9-21ksoftirqd/021:30:000
15225995520,5cyclictest9-21ksoftirqd/021:40:140
15225995516,6cyclictest9-21ksoftirqd/023:45:180
15225995516,6cyclictest9-21ksoftirqd/023:45:180
134491550,3ptp4l0-21swapper/121:38:071
134491550,3ptp4l0-21swapper/121:23:321
134491550,3ptp4l0-21swapper/019:45:250
134491550,2ptp4l0-21swapper/120:37:431
1522899547,16cyclictest27406-21chrt21:56:293
15225995423,5cyclictest9-21ksoftirqd/023:10:160
15225995422,8cyclictest9-21ksoftirqd/023:15:200
15225995422,8cyclictest9-21ksoftirqd/023:15:190
15225995421,6cyclictest9-21ksoftirqd/022:20:260
15225995420,5cyclictest9-21ksoftirqd/020:55:200
15225995419,5cyclictest9-21ksoftirqd/019:20:300
15225995417,5cyclictest9-21ksoftirqd/022:25:220
134491540,3ptp4l0-21swapper/119:58:331
1522899537,16cyclictest16160-21chrt21:34:393
1522899537,16cyclictest11525-21taskset21:24:133
1522899537,15cyclictest1812-21chrt21:02:023
1522899536,16cyclictest20442-21chrt21:40:293
15225995326,4cyclictest9-21ksoftirqd/000:01:320
15225995325,7cyclictest9-21ksoftirqd/020:25:210
15225995322,3cyclictest9-21ksoftirqd/000:10:220
15225995321,7cyclictest9-21ksoftirqd/022:50:000
15225995321,5cyclictest9-21ksoftirqd/022:55:210
15225995320,6cyclictest9-21ksoftirqd/020:45:160
15225995319,6cyclictest9-21ksoftirqd/022:00:010
15225995318,5cyclictest9-21ksoftirqd/019:55:200
15225995317,6cyclictest9-21ksoftirqd/019:50:160
1522899527,17cyclictest23136-21taskset22:58:433
1522899527,13cyclictest0-21swapper/300:00:183
1522799522,11cyclictest0-21swapper/220:25:262
1522799522,11cyclictest0-21swapper/200:10:282
134491520,3ptp4l0-21swapper/122:19:551
1522899519,15cyclictest32299-21runrttasks23:18:103
1522899519,15cyclictest32299-21runrttasks23:18:103
1522899518,16cyclictest21334-21runrttasks00:05:043
1522899517,9cyclictest7298-21taskset23:35:043
1522899516,41cyclictest202212chrt19:24:503
1522899515,9cyclictest0-21swapper/322:32:103
1522799518,11cyclictest0-21swapper/223:05:222
1522799510,6cyclictest24284-21ntpq20:40:222
15225995119,5cyclictest9-21ksoftirqd/023:20:160
15225995119,4cyclictest9-21ksoftirqd/022:30:150
15225995118,7cyclictest9-21ksoftirqd/000:05:290
15225995115,5cyclictest9-21ksoftirqd/021:05:000
1522899507,12cyclictest0-21swapper/321:06:113
1522899507,11cyclictest13830-21taskset21:29:213
1522899507,10cyclictest22291-21runrttasks19:26:563
134491500,4ptp4l0-21swapper/222:55:502
134491500,4ptp4l0-21swapper/100:21:591
134491500,4ptp4l0-21swapper/100:21:591
1522899498,10cyclictest11588-21runrttasks23:43:503
1522899496,18cyclictest0-21swapper/322:01:133
1522899494,14cyclictest29107-21users19:40:283
1522799492,6cyclictest0-21swapper/219:24:592
15225994918,6cyclictest9-21ksoftirqd/000:25:280
134491490,4ptp4l0-21swapper/023:04:560
134491490,3ptp4l0-21swapper/120:09:031
134491490,3ptp4l0-21swapper/100:06:081
1522899486,38cyclictest88262chrt20:08:583
1522799481,16cyclictest13994-21apt-get20:20:132
134491480,11ptp4l24189-21fschecks_count00:10:161
1522899478,10cyclictest18637-21taskset23:58:053
1522899476,10cyclictest31685-21runrttasks19:48:513
15225994714,5cyclictest9-21ksoftirqd/020:45:010
134491470,4ptp4l0-21swapper/120:03:261
134491470,3ptp4l0-21swapper/023:09:090
1522599462,3cyclictest30543-21dump-pmu-power00:25:000
1522599462,3cyclictest30543-21dump-pmu-power00:25:000
15225994613,3cyclictest9-21ksoftirqd/023:25:280
134491460,3ptp4l0-21swapper/122:08:251
1522899458,10cyclictest18452-21runrttasks21:39:373
1522899455,11cyclictest28130-21taskset00:19:063
1522899455,10cyclictest270472sleep319:38:303
1522899455,10cyclictest251882sleep321:52:243
1522799453,5cyclictest0-21swapper/221:45:452
1522799451,6cyclictest21663-21df_inode00:05:162
1522799451,17cyclictest28781-21/usr/sbin/munin19:40:252
134491450,6ptp4l0-21swapper/121:50:171
134491450,3ptp4l0-21swapper/221:14:072
134491450,3ptp4l0-21swapper/119:12:331
134491450,10ptp4l0-21swapper/223:58:552
134491450,10ptp4l0-21swapper/220:51:452
1522899448,10cyclictest30028-21taskset23:13:323
1522899447,10cyclictest28455-21chrt00:20:073
1522899447,10cyclictest28455-21chrt00:20:073
1522899447,10cyclictest18139-21chrt20:27:273
1522799440,7cyclictest24363-21ls21:50:212
1522799440,10cyclictest11444-21/usr/sbin/munin20:15:272
134491440,9ptp4l0-21swapper/221:55:322
134491440,10ptp4l0-21swapper/200:38:402
1522799432,9cyclictest0-21swapper/219:25:582
1522799431,7cyclictest8269-21meminfo23:35:202
15225994337,3cyclictest9-21ksoftirqd/021:15:000
1522599432,5cyclictest121rcu_preempt00:39:590
134491430,9ptp4l0-21swapper/223:20:292
134491430,8ptp4l0-21swapper/222:50:462
134491430,5ptp4l586-21diskstats23:20:151
134491430,5ptp4l0-21swapper/119:45:161
134491430,3ptp4l29490-21ls00:20:202
134491430,3ptp4l29490-21ls00:20:202
134491430,3ptp4l0-21swapper/122:26:301
134491430,3ptp4l0-21swapper/121:28:111
1522899424,12cyclictest166042chrt22:45:123
1522799425,6cyclictest0-21swapper/220:10:172
1522799425,13cyclictest0-21swapper/219:15:192
1522799422,5cyclictest0-21swapper/219:12:422
134491420,5ptp4l28261-21/usr/sbin/munin22:00:141
134491420,5ptp4l0-21swapper/300:25:203
134491420,5ptp4l0-21swapper/123:35:191
134491420,4ptp4l31897-21ls23:15:281
134491420,4ptp4l31897-21ls23:15:281
134491420,4ptp4l16296-21apt-get20:25:131
134491420,4ptp4l0-21swapper/121:40:261
134491420,3ptp4l6409-21apt-get20:05:042
134491420,3ptp4l20559-21ls00:00:261
134491420,3ptp4l14440-21apt-get23:50:121
134491420,3ptp4l0-21swapper/120:43:051
134491420,3ptp4l0-21swapper/100:26:011
134491420,11ptp4l0-21swapper/120:14:481
1522899415,10cyclictest1317-21runrttasks23:04:033
1522799414,3cyclictest121rcu_preempt23:45:142
1522799414,3cyclictest121rcu_preempt23:45:142
15227994128,11cyclictest33-21ksoftirqd/222:25:002
134491410,9ptp4l0-21swapper/123:11:181
134491410,5ptp4l0-21swapper/123:55:141
134491410,5ptp4l0-21swapper/123:30:221
134491410,5ptp4l0-21swapper/122:50:151
134491410,5ptp4l0-21swapper/121:00:191
134491410,4ptp4l0-21swapper/220:35:132
134491410,4ptp4l0-21swapper/219:32:332
134491410,4ptp4l0-21swapper/122:30:231
134491410,4ptp4l0-21swapper/119:40:201
134491410,3ptp4l26155-21apt-get00:15:131
134491410,3ptp4l21431-21ls19:25:211
1522799405,8cyclictest33-21ksoftirqd/219:50:532
15227994037,2cyclictest311rcuc/223:50:252
1522799402,3cyclictest121rcu_preempt22:05:112
1522799402,13cyclictest0-21swapper/223:40:132
1522799400,2cyclictest134491ptp4l20:55:152
134491400,5ptp4l26517-21ssh19:35:272
134491400,5ptp4l0-21swapper/323:05:153
134491400,5ptp4l0-21swapper/223:00:122
134491400,5ptp4l0-21swapper/121:45:111
134491400,5ptp4l0-21swapper/121:30:161
134491400,5ptp4l0-21swapper/120:30:251
134491400,4ptp4l26574-21tune2fs00:15:162
134491400,4ptp4l25957-21latency_hist00:15:003
134491400,4ptp4l25083-21apt-get19:35:121
134491400,4ptp4l23349-21iostat19:30:181
134491400,4ptp4l0-21swapper/323:20:043
134491400,4ptp4l0-21swapper/322:40:113
134491400,4ptp4l0-21swapper/321:15:193
134491400,4ptp4l0-21swapper/223:26:152
134491400,4ptp4l0-21swapper/223:17:372
134491400,4ptp4l0-21swapper/223:17:362
134491400,4ptp4l0-21swapper/223:10:302
134491400,4ptp4l0-21swapper/221:42:322
134491400,4ptp4l0-21swapper/219:55:312
134491400,4ptp4l0-21swapper/219:47:232
134491400,4ptp4l0-21swapper/200:31:352
134491400,4ptp4l0-21swapper/123:47:121
134491400,4ptp4l0-21swapper/123:47:121
134491400,4ptp4l0-21swapper/123:43:431
134491400,4ptp4l0-21swapper/123:00:181
134491400,4ptp4l0-21swapper/122:10:241
134491400,3ptp4l10496-21meminfo21:20:212
134491400,3ptp4l0-21swapper/220:47:512
134491400,3ptp4l0-21swapper/123:07:331
134491400,3ptp4l0-21swapper/122:40:221
134691390,3getstats0-21swapper/120:15:481
134491390,5ptp4l25759-21sed20:45:151
134491390,4ptp4l33-21ksoftirqd/221:25:192
134491390,4ptp4l14560-21perl21:30:172
134491390,4ptp4l0-21swapper/320:52:153
134491390,4ptp4l0-21swapper/223:31:122
134491390,4ptp4l0-21swapper/222:46:022
134491390,4ptp4l0-21swapper/222:40:162
134491390,4ptp4l0-21swapper/222:35:542
134491390,4ptp4l0-21swapper/222:16:162
134491390,4ptp4l0-21swapper/221:35:172
134491390,4ptp4l0-21swapper/221:16:422
134491390,4ptp4l0-21swapper/220:34:322
134491390,4ptp4l0-21swapper/220:02:512
134491390,4ptp4l0-21swapper/200:25:262
134491390,4ptp4l0-21swapper/123:26:061
134491390,4ptp4l0-21swapper/122:58:171
134491390,4ptp4l0-21swapper/122:20:111
134491390,4ptp4l0-21swapper/121:06:301
134491390,4ptp4l0-21swapper/120:21:481
134491390,4ptp4l0-21swapper/119:15:091
134491390,4ptp4l0-21swapper/100:35:591
134491390,3ptp4l0-21swapper/222:27:172
134491390,3ptp4l0-21swapper/100:30:211
1522799380,5cyclictest29069-21ntp_states22:00:232
134491380,4ptp4l0-21swapper/121:10:161
134491380,4ptp4l0-21swapper/120:51:541
134491380,4ptp4l0-21swapper/119:53:091
134491380,3ptp4l0-21swapper/200:00:132
134491380,3ptp4l0-21swapper/120:55:261
134491380,3ptp4l0-21swapper/119:20:161
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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