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2026-03-31 - 07:19
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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 792 highest latencies:
System rackdslot1.osadl.org (updated Tue Mar 31, 2026 00:45:37)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1439522020,11sleep114413-21sort19:05:051
1960721960,4sleep019543-21sh19:05:140
134691900,4getstats0-21swapper/320:20:213
134691750,1getstats21765-1kworker/2:1H20:15:222
6175997128,5cyclictest9-21ksoftirqd/020:40:220
6177996636,13cyclictest33-21ksoftirqd/200:20:162
6176996631,8cyclictest25-21ksoftirqd/119:55:221
297092660,4sleep229753-21sh19:06:152
6176996433,4cyclictest25-21ksoftirqd/119:10:231
6176996432,4cyclictest25-21ksoftirqd/123:05:261
6175996417,6cyclictest0-21swapper/020:05:000
6176996236,3cyclictest25-21ksoftirqd/119:15:131
6176996231,7cyclictest25-21ksoftirqd/123:50:161
6175996233,3cyclictest9-21ksoftirqd/019:20:230
6176996131,3cyclictest25-21ksoftirqd/123:10:291
6176996130,3cyclictest25-21ksoftirqd/120:00:131
6176996129,4cyclictest25-21ksoftirqd/119:34:551
134491610,6ptp4l22680-21wc19:06:043
134491610,4ptp4l24887-21apt-get21:00:133
6177996016,4cyclictest33-21ksoftirqd/222:10:162
6176996032,3cyclictest25-21ksoftirqd/122:35:161
6176996031,6cyclictest25-21ksoftirqd/123:20:191
6176996021,7cyclictest25-21ksoftirqd/120:50:171
6176995914,9cyclictest25-21ksoftirqd/122:30:011
134491590,4ptp4l0-21swapper/319:44:353
6177995815,5cyclictest33-21ksoftirqd/221:40:002
6176995829,4cyclictest25-21ksoftirqd/100:35:291
617599586,9cyclictest9-21ksoftirqd/020:10:160
134491580,4ptp4l0-21swapper/319:55:253
134491580,3ptp4l0-21swapper/223:24:482
134491580,3ptp4l0-21swapper/220:03:262
134491580,3ptp4l0-21swapper/023:12:390
6177995719,7cyclictest33-21ksoftirqd/219:22:412
6177995718,5cyclictest33-21ksoftirqd/221:46:582
6177995717,18cyclictest33-21ksoftirqd/220:45:272
6177995715,10cyclictest33-21ksoftirqd/220:38:192
617699574,9cyclictest25-21ksoftirqd/121:00:281
617599578,8cyclictest6252-21cron22:39:590
134491570,4ptp4l0-21swapper/200:12:032
6177995619,4cyclictest33-21ksoftirqd/222:35:282
6177995614,9cyclictest33-21ksoftirqd/222:48:202
6177995614,9cyclictest33-21ksoftirqd/219:48:282
6177995613,10cyclictest33-21ksoftirqd/220:24:472
617699567,8cyclictest25-21ksoftirqd/123:45:001
6176995611,6cyclictest25-21ksoftirqd/100:19:401
6175995618,4cyclictest9-21ksoftirqd/021:40:140
134491560,4ptp4l0-21swapper/323:05:233
134491560,3ptp4l0-21swapper/320:42:583
134491560,3ptp4l0-21swapper/223:35:472
134491560,3ptp4l0-21swapper/222:43:192
134491560,15ptp4l0-21swapper/300:17:483
6177995520,10cyclictest33-21ksoftirqd/200:30:002
6177995518,5cyclictest33-21ksoftirqd/200:00:152
6177995516,12cyclictest33-21ksoftirqd/223:01:212
6177995516,10cyclictest33-21ksoftirqd/221:17:532
617699555,8cyclictest25-21ksoftirqd/120:20:161
617699553,8cyclictest25-21ksoftirqd/121:25:231
6176995526,8cyclictest25-21ksoftirqd/122:20:241
6176995525,3cyclictest25-21ksoftirqd/100:10:141
617599554,9cyclictest9-21ksoftirqd/019:10:270
617599553,9cyclictest9-21ksoftirqd/020:15:250
617599553,11cyclictest9-21ksoftirqd/000:00:230
134491550,4ptp4l0-21swapper/200:07:062
134491550,4ptp4l0-21swapper/000:15:030
6177995417,9cyclictest33-21ksoftirqd/200:00:002
6177995417,13cyclictest33-21ksoftirqd/200:17:262
6177995414,13cyclictest33-21ksoftirqd/219:13:422
6177995412,9cyclictest33-21ksoftirqd/219:27:142
6177995412,10cyclictest33-21ksoftirqd/220:59:042
617699545,7cyclictest25-21ksoftirqd/123:39:591
6176995425,4cyclictest25-21ksoftirqd/120:25:291
617599546,3cyclictest9-21ksoftirqd/023:20:110
617599543,10cyclictest9-21ksoftirqd/019:30:010
134491540,4ptp4l0-21swapper/223:34:522
134491540,3ptp4l0-21swapper/222:55:132
6177995333,2cyclictest33-21ksoftirqd/220:28:432
6177995324,4cyclictest33-21ksoftirqd/219:40:002
6177995320,7cyclictest33-21ksoftirqd/223:43:372
6177995317,5cyclictest33-21ksoftirqd/221:55:002
6177995316,10cyclictest33-21ksoftirqd/221:21:352
6177995315,5cyclictest33-21ksoftirqd/221:33:222
6177995314,9cyclictest33-21ksoftirqd/222:21:162
6177995314,13cyclictest33-21ksoftirqd/219:41:382
6177995313,9cyclictest33-21ksoftirqd/220:51:262
6177995313,9cyclictest33-21ksoftirqd/200:30:542
6177995313,8cyclictest33-21ksoftirqd/223:25:272
6177995313,10cyclictest33-21ksoftirqd/223:48:552
617699535,7cyclictest25-21ksoftirqd/120:30:171
617699531,9cyclictest25-21ksoftirqd/121:55:271
6176995318,3cyclictest25-21ksoftirqd/119:35:251
617599535,9cyclictest9-21ksoftirqd/022:55:200
617599535,6cyclictest9-21ksoftirqd/023:40:000
617599533,9cyclictest14349-21cut21:45:180
617599533,8cyclictest18248-21awk00:15:000
617599533,6cyclictest9-21ksoftirqd/020:25:180
134491530,4ptp4l0-21swapper/300:14:363
134491530,4ptp4l0-21swapper/222:34:012
134491530,3ptp4l0-21swapper/320:32:383
6177995217,4cyclictest33-21ksoftirqd/223:50:192
6177995216,4cyclictest33-21ksoftirqd/222:00:002
6177995215,12cyclictest33-21ksoftirqd/219:57:392
6177995213,9cyclictest33-21ksoftirqd/223:10:212
6177995212,10cyclictest33-21ksoftirqd/219:34:002
617699526,9cyclictest25-21ksoftirqd/122:34:261
6176995234,8cyclictest25-21ksoftirqd/122:50:271
617699522,8cyclictest25-21ksoftirqd/123:00:151
6176995216,6cyclictest25-21ksoftirqd/120:55:131
617599525,7cyclictest9-21ksoftirqd/021:34:590
617599524,9cyclictest9-21ksoftirqd/021:20:160
617599522,8cyclictest9-21ksoftirqd/020:30:140
6177995112,9cyclictest33-21ksoftirqd/222:19:402
617699515,9cyclictest25-21ksoftirqd/123:15:261
617699515,8cyclictest25-21ksoftirqd/122:45:261
617699514,8cyclictest25-21ksoftirqd/121:40:221
6176995135,6cyclictest25-21ksoftirqd/122:20:011
617699512,9cyclictest25-21ksoftirqd/119:48:241
617699512,8cyclictest25-21ksoftirqd/121:15:151
617599515,9cyclictest9-21ksoftirqd/022:03:270
617599513,6cyclictest10800-21apt21:39:590
6175995123,6cyclictest9-21ksoftirqd/021:50:190
617599512,10cyclictest9-21ksoftirqd/021:25:270
617599510,8cyclictest9-21ksoftirqd/023:50:170
134491510,4ptp4l0-21swapper/323:47:213
134491510,4ptp4l0-21swapper/222:26:432
617899502,6cyclictest0-21swapper/300:25:013
6177995019,4cyclictest33-21ksoftirqd/223:15:142
6177995015,11cyclictest33-21ksoftirqd/221:11:322
6177995014,5cyclictest33-21ksoftirqd/220:34:222
6177995013,10cyclictest33-21ksoftirqd/221:08:272
617699506,9cyclictest20745-21kworker/1:019:25:191
617699502,8cyclictest25-21ksoftirqd/122:10:191
6176995019,7cyclictest25-21ksoftirqd/120:42:441
6176995014,6cyclictest25-21ksoftirqd/100:30:161
617599505,9cyclictest9-21ksoftirqd/022:09:590
617599505,9cyclictest9-21ksoftirqd/000:35:270
617599503,5cyclictest10964-21sed22:50:000
6175995033,7cyclictest9-21ksoftirqd/021:00:000
617599502,9cyclictest9-21ksoftirqd/023:50:010
617599502,8cyclictest9-21ksoftirqd/023:30:200
617599502,7cyclictest9-21ksoftirqd/000:20:160
617599502,7cyclictest9-21ksoftirqd/000:05:210
617599502,6cyclictest24748-21cat23:20:010
617599502,6cyclictest0-21swapper/022:10:290
134491500,4ptp4l0-21swapper/322:19:453
134491500,4ptp4l0-21swapper/319:21:543
134491500,4ptp4l0-21swapper/300:02:193
134491500,3ptp4l0-21swapper/319:47:413
134491500,3ptp4l0-21swapper/220:42:462
6177994916,9cyclictest33-21ksoftirqd/221:26:242
6177994915,7cyclictest33-21ksoftirqd/200:36:362
6177994911,10cyclictest33-21ksoftirqd/219:54:302
617699495,9cyclictest25-21ksoftirqd/100:00:271
617699494,3cyclictest121rcu_preempt20:05:281
6176994932,3cyclictest25-21ksoftirqd/122:05:161
617699492,8cyclictest25-21ksoftirqd/120:10:211
6176994920,7cyclictest25-21ksoftirqd/100:29:471
6176994914,3cyclictest25-21ksoftirqd/100:22:531
617599495,10cyclictest9-21ksoftirqd/021:55:200
617599494,9cyclictest9-21ksoftirqd/022:15:270
6175994925,7cyclictest9-21ksoftirqd/022:50:240
617599491,5cyclictest101ktimersoftd/023:45:010
617599490,8cyclictest9-21ksoftirqd/022:20:130
134491490,4ptp4l0-21swapper/320:14:503
134491490,4ptp4l0-21swapper/319:37:393
134491490,3ptp4l0-21swapper/223:07:502
6177994817,7cyclictest33-21ksoftirqd/222:06:162
6177994817,7cyclictest33-21ksoftirqd/222:03:232
6177994817,7cyclictest33-21ksoftirqd/220:13:012
6177994812,7cyclictest33-21ksoftirqd/222:51:102
6177994812,7cyclictest33-21ksoftirqd/221:41:442
617699483,7cyclictest25-21ksoftirqd/123:55:331
617699482,6cyclictest25-21ksoftirqd/120:15:151
6176994824,6cyclictest25-21ksoftirqd/119:50:231
617599485,8cyclictest9-21ksoftirqd/022:30:240
617599483,7cyclictest9-21ksoftirqd/021:05:200
617599483,7cyclictest9-21ksoftirqd/019:50:140
617599483,10cyclictest9-21ksoftirqd/023:05:260
617599483,10cyclictest9-21ksoftirqd/020:00:010
617599482,7cyclictest454-21grep22:25:210
134491480,4ptp4l0-21swapper/323:52:253
134491480,4ptp4l0-21swapper/322:22:043
134491480,3ptp4l0-21swapper/322:43:583
134491480,3ptp4l0-21swapper/320:00:133
6177994713,12cyclictest33-21ksoftirqd/221:00:442
617699473,6cyclictest121rcu_preempt23:25:271
6176994731,7cyclictest25-21ksoftirqd/122:45:001
6176994729,7cyclictest25-21ksoftirqd/123:40:271
6176994723,8cyclictest25-21ksoftirqd/119:21:441
617699471,8cyclictest25-21ksoftirqd/121:20:261
6176994713,6cyclictest25-21ksoftirqd/122:56:541
6176994713,3cyclictest25-21ksoftirqd/120:48:111
617599474,3cyclictest0-21swapper/020:45:130
6175994726,9cyclictest9-21ksoftirqd/022:40:140
617599472,4cyclictest0-21swapper/021:15:190
617599472,3cyclictest121rcu_preempt23:55:210
617599471,5cyclictest9-21ksoftirqd/021:10:150
617899462,6cyclictest0-21swapper/323:15:003
6177994616,11cyclictest33-21ksoftirqd/220:07:142
617699465,9cyclictest25-21ksoftirqd/119:40:261
617699464,9cyclictest25-21ksoftirqd/120:35:291
617699464,8cyclictest25-21ksoftirqd/121:05:191
6176994621,9cyclictest25-21ksoftirqd/122:00:151
6175994640,3cyclictest101ktimersoftd/020:05:200
617599463,4cyclictest9-21ksoftirqd/023:00:260
617599462,9cyclictest9-21ksoftirqd/019:50:010
617599462,9cyclictest9-21ksoftirqd/000:25:150
617599462,5cyclictest9-21ksoftirqd/021:04:590
617599461,8cyclictest9-21ksoftirqd/019:35:110
617599461,7cyclictest9-21ksoftirqd/019:35:000
6175994611,5cyclictest9-21ksoftirqd/019:43:060
6178994534,3cyclictest41-21ksoftirqd/319:30:213
6177994514,7cyclictest33-21ksoftirqd/219:17:472
617699452,8cyclictest25-21ksoftirqd/121:10:181
6176994527,7cyclictest25-21ksoftirqd/123:30:191
617699451,8cyclictest25-21ksoftirqd/100:05:161
6176994512,5cyclictest25-21ksoftirqd/121:32:281
617599454,5cyclictest9-21ksoftirqd/023:25:190
134491450,4ptp4l0-21swapper/323:32:233
617699444,8cyclictest25-21ksoftirqd/121:45:141
617699444,3cyclictest25-21ksoftirqd/121:50:201
617599446,5cyclictest9-21ksoftirqd/020:20:210
617599442,8cyclictest9-21ksoftirqd/020:35:140
617599442,5cyclictest9-21ksoftirqd/000:30:140
134491440,9ptp4l0-21swapper/322:26:243
134491440,4ptp4l21705-21ssh20:50:273
134491440,4ptp4l0-21swapper/300:07:183
6178994338,3cyclictest41-21ksoftirqd/322:39:593
617699430,6cyclictest25-21ksoftirqd/121:40:011
617599430,7cyclictest101ktimersoftd/019:15:210
134491430,4ptp4l28412-21ntp_states23:25:243
134491430,4ptp4l24933-21apt-get19:50:113
134491430,4ptp4l0-21swapper/322:31:343
6178994238,3cyclictest41-21ksoftirqd/300:39:593
6178994211,4cyclictest41-21ksoftirqd/320:29:043
617599421,6cyclictest9-21ksoftirqd/020:50:270
134491420,4ptp4l2012-21diskstats21:20:163
134491420,4ptp4l13368-21apt-get20:35:133
134491420,4ptp4l1301-21snmpd23:42:023
134491420,4ptp4l0-21swapper/320:15:193
617899412,4cyclictest41-21ksoftirqd/319:15:133
134491410,5ptp4l0-21swapper/321:15:133
134491410,5ptp4l0-21swapper/300:30:243
134491410,4ptp4l878-21ls23:35:273
134491410,4ptp4l325-21memory20:05:203
134491410,4ptp4l22571-21apt-get20:55:123
134491410,4ptp4l10800-21apt-get21:40:033
134491410,4ptp4l0-21swapper/322:45:203
134491410,3ptp4l9033-21apt-get23:55:153
134491410,3ptp4l15781-21apt-get23:00:113
6178994035,3cyclictest41-21ksoftirqd/322:05:003
134491400,4ptp4l6778-21ps19:10:173
134491400,4ptp4l22660-21/usr/sbin/munin23:15:173
134491400,4ptp4l19247-21ntp_states21:55:253
134491400,4ptp4l0-21swapper/322:55:253
134491400,4ptp4l0-21swapper/322:50:153
134491400,4ptp4l0-21swapper/319:25:283
134491400,4ptp4l0-21swapper/300:27:083
134491400,3ptp4l7370-21ls21:30:213
134491390,4ptp4l26412-21switchtime22:10:293
134491390,4ptp4l1301-21snmpd21:05:153
134491390,4ptp4l0-21swapper/322:05:283
134491390,4ptp4l0-21swapper/320:45:143
134491390,3ptp4l25204-21df23:20:113
134491380,4ptp4l0-21swapper/321:50:173
134491380,4ptp4l0-21swapper/321:48:273
134491380,4ptp4l0-21swapper/321:35:173
134491380,4ptp4l0-21swapper/321:25:273
134491380,4ptp4l0-21swapper/321:12:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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