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2026-04-17 - 15:02
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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 rackdslot2.osadl.org (updated Fri Apr 17, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591206172,23phc2sys0-21swapper/319:05:493
115902206171,23sleep20-21swapper/219:06:132
115732206172,22sleep10-21swapper/119:06:031
97472201168,22sleep00-21swapper/019:05:030
2724421620,3sleep21217899cyclictest21:55:132
916021380,4sleep21217899cyclictest22:25:022
139291890,9ptp4l401ktimersoftd/300:10:243
139291680,1ptp4l401ktimersoftd/319:35:223
139291640,2ptp4l401ktimersoftd/322:00:183
1217899623,15cyclictest17647-21sed21:35:142
139291600,2ptp4l0-21swapper/321:30:323
1217899573,17cyclictest30736-21df_abs20:55:132
1217899572,17cyclictest217-21systemd-journal21:00:112
1217899571,11cyclictest2705-21cut22:10:192
42572560,2sleep34260-21processes23:20:233
1217899561,10cyclictest13210-21cut23:40:192
114262550,2sleep20-21swapper/220:15:132
60032530,1sleep36006-21grep00:30:283
1217899530,17cyclictest0-21swapper/200:00:442
12177995316,2cyclictest25-21ksoftirqd/123:05:181
1395915236,9phc2sys0-21swapper/319:10:013
1395915236,9phc2sys0-21swapper/319:10:003
139291510,0ptp4l401ktimersoftd/323:00:063
1217899511,16cyclictest19550-21grep19:25:112
88492500,2sleep00-21swapper/023:30:190
12178995010,5cyclictest33-21ksoftirqd/200:32:452
1217899500,14cyclictest19609-21apt-get23:55:122
1217899491,16cyclictest18634-21grep20:30:142
1217899490,13cyclictest16368-21grep23:45:242
12178994710,4cyclictest33-21ksoftirqd/219:22:272
139291460,0ptp4l401ktimersoftd/322:40:133
139291450,0ptp4l401ktimersoftd/323:45:143
1217899452,7cyclictest24549-21apt-config21:50:012
12177994512,4cyclictest25-21ksoftirqd/120:00:011
12176994532,11cyclictest9-21ksoftirqd/000:03:210
1217899441,7cyclictest26936-21apt-get00:10:142
12177994414,4cyclictest25-21ksoftirqd/121:15:221
12176994429,12cyclictest9-21ksoftirqd/019:35:110
139291430,0ptp4l401ktimersoftd/320:20:253
1217899431,16cyclictest31701-21grep00:20:132
1217899431,11cyclictest25748-21mailstats00:05:242
1217899430,8cyclictest31822-21apt-get22:05:122
1217899430,8cyclictest10197-21apt-get21:20:122
12177994338,3cyclictest21826-21turbostat.cron21:45:001
12177994338,3cyclictest21826-21turbostat.cron21:45:001
12177994337,3cyclictest25-21ksoftirqd/100:20:001
139291420,0ptp4l401ktimersoftd/320:39:153
139291420,0ptp4l401ktimersoftd/320:25:173
1217899420,7cyclictest24781-21grep20:40:262
1217899420,7cyclictest24781-21grep20:40:252
12177994237,3cyclictest25-21ksoftirqd/119:35:011
1188524232,4sleep00-21swapper/019:10:010
1188524232,4sleep00-21swapper/019:10:010
139291410,0ptp4l401ktimersoftd/320:45:193
139291410,0ptp4l401ktimersoftd/320:40:163
139291410,0ptp4l401ktimersoftd/320:40:163
1217899410,7cyclictest8763-21meminfo23:30:182
1217899410,7cyclictest30595-21apt-get23:10:112
1217899410,7cyclictest14952-21meminfo22:35:212
1217899410,16cyclictest1312-21snmpd20:21:492
1217799417,3cyclictest25-21ksoftirqd/121:25:131
1217899407,6cyclictest33-21ksoftirqd/222:00:282
1217899401,7cyclictest20194-21hddtemp_smartct21:40:162
1217899401,7cyclictest20194-21hddtemp_smartct21:40:162
1217899400,7cyclictest3507-21perl23:20:162
1217799407,3cyclictest25-21ksoftirqd/122:10:131
1217799405,12cyclictest25-21ksoftirqd/121:30:151
12177994036,3cyclictest25-21ksoftirqd/120:25:001
12177994034,3cyclictest25-21ksoftirqd/120:30:151
12177994012,7cyclictest25-21ksoftirqd/119:15:181
12177994012,4cyclictest25-21ksoftirqd/122:34:591
139291390,16ptp4l401ktimersoftd/321:35:113
12179993933,4cyclictest41-21ksoftirqd/323:20:023
1217899396,5cyclictest33-21ksoftirqd/219:51:472
1217799399,4cyclictest25-21ksoftirqd/123:25:241
1217799399,4cyclictest25-21ksoftirqd/120:45:121
1217799395,3cyclictest25-21ksoftirqd/122:20:241
12177993932,4cyclictest25-21ksoftirqd/122:55:001
12177993911,5cyclictest25-21ksoftirqd/100:20:231
12179993831,4cyclictest41-21ksoftirqd/321:28:593
12179993831,4cyclictest41-21ksoftirqd/320:14:133
12179993831,4cyclictest41-21ksoftirqd/319:15:113
1217899380,8cyclictest21552-21hddtemp_smartct22:50:172
1217799388,4cyclictest25-21ksoftirqd/123:50:261
1217799388,3cyclictest25-21ksoftirqd/121:05:241
1217799385,4cyclictest25-21ksoftirqd/122:45:311
1217799385,4cyclictest25-21ksoftirqd/122:15:241
1217799384,3cyclictest25-21ksoftirqd/123:55:171
1217799383,3cyclictest25-21ksoftirqd/122:40:151
12177993833,3cyclictest25-21ksoftirqd/123:10:191
12177993833,3cyclictest25-21ksoftirqd/123:05:001
12177993832,4cyclictest25-21ksoftirqd/122:39:091
12177993832,3cyclictest25-21ksoftirqd/123:50:001
12177993832,3cyclictest25-21ksoftirqd/120:45:001
12177993832,3cyclictest25-21ksoftirqd/120:45:001
12177993832,3cyclictest25-21ksoftirqd/119:10:121
12177993832,3cyclictest25-21ksoftirqd/119:10:121
12177993831,4cyclictest25-21ksoftirqd/120:06:251
12177993813,7cyclictest25-21ksoftirqd/100:05:261
139291370,0ptp4l401ktimersoftd/321:50:153
12179993731,4cyclictest41-21ksoftirqd/323:27:573
12179993731,4cyclictest41-21ksoftirqd/319:57:253
12179993731,4cyclictest41-21ksoftirqd/300:04:363
12178993731,4cyclictest33-21ksoftirqd/221:08:562
1217899372,5cyclictest0-21swapper/221:14:542
1217899370,7cyclictest9460-21iostat_ios20:10:162
1217799378,4cyclictest25-21ksoftirqd/100:00:171
1217799374,6cyclictest25-21ksoftirqd/123:35:181
1217799374,4cyclictest25-21ksoftirqd/120:25:121
1217799373,6cyclictest25-21ksoftirqd/122:25:131
12177993733,2cyclictest25-21ksoftirqd/120:55:001
12177993732,3cyclictest25-21ksoftirqd/123:30:161
12177993732,3cyclictest25-21ksoftirqd/121:40:001
12177993732,3cyclictest25-21ksoftirqd/121:10:141
12177993732,3cyclictest25-21ksoftirqd/120:55:151
12177993732,3cyclictest231rcuc/119:25:181
12177993732,2cyclictest25-21ksoftirqd/119:25:011
12177993731,4cyclictest25-21ksoftirqd/121:02:171
12177993731,3cyclictest25-21ksoftirqd/120:00:011
12177993731,3cyclictest25-21ksoftirqd/100:25:201
1217799372,4cyclictest25-21ksoftirqd/121:20:291
41298360,2rtkit-daemon0-21swapper/322:15:163
12179993631,3cyclictest41-21ksoftirqd/322:30:113
12179993631,3cyclictest41-21ksoftirqd/322:28:203
12179993631,3cyclictest41-21ksoftirqd/321:44:223
12179993631,3cyclictest41-21ksoftirqd/321:44:213
12179993631,3cyclictest41-21ksoftirqd/321:00:093
12179993631,3cyclictest41-21ksoftirqd/300:06:133
12179993630,4cyclictest41-21ksoftirqd/320:31:233
12179993630,4cyclictest41-21ksoftirqd/300:18:523
1217899367,4cyclictest33-21ksoftirqd/219:12:492
1217899367,4cyclictest33-21ksoftirqd/219:12:492
1217899366,5cyclictest33-21ksoftirqd/219:39:372
12178993630,4cyclictest33-21ksoftirqd/220:48:352
1217899360,14cyclictest33-21ksoftirqd/222:20:262
1217799368,7cyclictest25-21ksoftirqd/122:02:501
1217799366,6cyclictest25-21ksoftirqd/119:50:131
1217799366,2cyclictest121rcu_preempt23:40:191
12177993633,2cyclictest25-21ksoftirqd/123:15:191
12177993632,3cyclictest25-21ksoftirqd/121:50:151
12177993632,2cyclictest25-21ksoftirqd/122:55:201
12177993632,2cyclictest25-21ksoftirqd/122:55:191
12177993631,3cyclictest25-21ksoftirqd/120:35:151
12177993630,3cyclictest25-21ksoftirqd/119:45:141
12177993630,3cyclictest25-21ksoftirqd/100:35:001
12176993630,4cyclictest9-21ksoftirqd/023:21:450
12179993529,4cyclictest41-21ksoftirqd/322:58:183
12179993529,4cyclictest41-21ksoftirqd/322:58:173
12179993529,4cyclictest41-21ksoftirqd/322:35:113
12179993529,4cyclictest41-21ksoftirqd/319:48:093
12179993529,4cyclictest41-21ksoftirqd/300:21:373
12179993528,4cyclictest41-21ksoftirqd/323:35:123
1217899357,4cyclictest33-21ksoftirqd/219:48:072
12178993530,3cyclictest33-21ksoftirqd/222:55:322
12178993530,3cyclictest33-21ksoftirqd/222:55:322
12178993529,4cyclictest33-21ksoftirqd/222:18:162
12178993529,4cyclictest33-21ksoftirqd/220:27:122
12178993529,3cyclictest33-21ksoftirqd/222:45:102
1217799358,7cyclictest25-21ksoftirqd/121:45:191
12177993531,2cyclictest25-21ksoftirqd/120:15:171
12177993530,3cyclictest25-21ksoftirqd/122:05:181
1217799351,3cyclictest121rcu_preempt23:20:181
12176993529,4cyclictest9-21ksoftirqd/023:06:080
12176993529,4cyclictest9-21ksoftirqd/022:53:280
12176993529,4cyclictest9-21ksoftirqd/022:16:140
12176993529,4cyclictest9-21ksoftirqd/021:42:320
12176993529,4cyclictest9-21ksoftirqd/021:42:320
12179993429,3cyclictest41-21ksoftirqd/319:31:503
12179993428,4cyclictest41-21ksoftirqd/323:13:303
12178993428,4cyclictest33-21ksoftirqd/223:36:392
1217899340,7cyclictest28939-21irqstats20:50:202
12177993430,3cyclictest25-21ksoftirqd/100:35:131
12177993430,2cyclictest25-21ksoftirqd/120:10:211
12177993429,3cyclictest25-21ksoftirqd/119:37:121
1217799342,6cyclictest25-21ksoftirqd/121:55:221
1217799341,6cyclictest25-21ksoftirqd/100:10:241
12176993428,4cyclictest9-21ksoftirqd/021:13:150
12176993428,4cyclictest9-21ksoftirqd/020:54:470
12176993428,4cyclictest9-21ksoftirqd/020:47:250
12176993428,4cyclictest9-21ksoftirqd/019:21:430
12176993428,3cyclictest9-21ksoftirqd/021:08:460
12176993428,3cyclictest9-21ksoftirqd/019:55:370
12179993328,3cyclictest41-21ksoftirqd/323:59:203
12179993328,3cyclictest41-21ksoftirqd/321:59:483
12179993328,3cyclictest41-21ksoftirqd/321:17:193
12179993328,3cyclictest41-21ksoftirqd/319:44:253
12178993327,4cyclictest33-21ksoftirqd/222:43:482
12178993327,4cyclictest33-21ksoftirqd/221:32:362
12178993327,4cyclictest33-21ksoftirqd/200:28:382
1217899332,28cyclictest31285-21kworker/2:022:30:142
12177993328,3cyclictest25-21ksoftirqd/119:40:131
12176993328,3cyclictest9-21ksoftirqd/023:00:420
12176993328,3cyclictest9-21ksoftirqd/020:59:150
12176993328,3cyclictest9-21ksoftirqd/019:15:570
12176993327,4cyclictest9-21ksoftirqd/023:57:310
12176993327,4cyclictest9-21ksoftirqd/023:42:270
12176993327,4cyclictest9-21ksoftirqd/023:26:180
12176993327,4cyclictest9-21ksoftirqd/023:16:070
12176993327,4cyclictest9-21ksoftirqd/021:57:560
12176993327,4cyclictest9-21ksoftirqd/021:39:310
12176993327,4cyclictest9-21ksoftirqd/000:35:340
12176993327,4cyclictest9-21ksoftirqd/000:28:040
12176993327,4cyclictest9-21ksoftirqd/000:24:270
12176993327,4cyclictest9-21ksoftirqd/000:14:040
12179993227,3cyclictest41-21ksoftirqd/322:46:143
12179993227,3cyclictest41-21ksoftirqd/320:53:453
12179993227,3cyclictest41-21ksoftirqd/319:29:223
12179993227,3cyclictest17256-21cpu23:50:153
12179993226,4cyclictest41-21ksoftirqd/322:24:593
12179993226,4cyclictest41-21ksoftirqd/320:57:433
12178993227,3cyclictest33-21ksoftirqd/219:15:102
12178993226,4cyclictest33-21ksoftirqd/220:37:072
12178993226,4cyclictest33-21ksoftirqd/219:56:032
12176993227,3cyclictest9-21ksoftirqd/023:11:580
12176993227,3cyclictest9-21ksoftirqd/021:15:040
12176993226,4cyclictest9-21ksoftirqd/021:50:420
12176993226,4cyclictest9-21ksoftirqd/021:47:050
12176993226,4cyclictest9-21ksoftirqd/020:41:300
12176993226,4cyclictest9-21ksoftirqd/020:41:300
12176993226,4cyclictest9-21ksoftirqd/019:54:480
139291310,0ptp4l401ktimersoftd/323:34:453
139291310,0ptp4l401ktimersoftd/322:53:313
139291310,0ptp4l401ktimersoftd/320:15:163
139291310,0ptp4l401ktimersoftd/319:20:303
12179993126,3cyclictest41-21ksoftirqd/321:21:463
12179993126,3cyclictest41-21ksoftirqd/319:53:513
12179993126,3cyclictest41-21ksoftirqd/300:38:593
12178993127,3cyclictest33-21ksoftirqd/220:03:212
12178993126,3cyclictest33-21ksoftirqd/219:34:272
12178993125,4cyclictest33-21ksoftirqd/223:53:562
12178993125,4cyclictest33-21ksoftirqd/221:28:392
12176993126,3cyclictest9-21ksoftirqd/023:50:430
12176993126,3cyclictest9-21ksoftirqd/022:58:510
12176993126,3cyclictest9-21ksoftirqd/022:58:510
12176993126,3cyclictest9-21ksoftirqd/022:31:140
12176993126,3cyclictest9-21ksoftirqd/022:05:120
12176993126,3cyclictest9-21ksoftirqd/020:04:390
12176993126,3cyclictest9-21ksoftirqd/000:30:120
12176993126,3cyclictest9-21ksoftirqd/000:05:130
12176993125,4cyclictest9-21ksoftirqd/022:21:190
12176993125,4cyclictest9-21ksoftirqd/020:34:080
12176993125,4cyclictest9-21ksoftirqd/020:26:170
12176993125,4cyclictest9-21ksoftirqd/020:12:590
139291300,0ptp4l401ktimersoftd/321:10:063
12179993025,3cyclictest41-21ksoftirqd/322:10:323
12179993024,4cyclictest41-21ksoftirqd/320:06:353
12178993025,3cyclictest33-21ksoftirqd/221:45:332
12178993025,3cyclictest33-21ksoftirqd/200:39:172
12178993024,4cyclictest33-21ksoftirqd/223:16:212
12176993025,3cyclictest9-21ksoftirqd/022:40:100
12176993025,3cyclictest9-21ksoftirqd/021:33:100
12176993025,3cyclictest9-21ksoftirqd/020:23:170
12176993025,3cyclictest9-21ksoftirqd/019:40:330
12176993025,3cyclictest9-21ksoftirqd/000:18:210
12176993024,4cyclictest9-21ksoftirqd/021:28:410
12176993024,4cyclictest9-21ksoftirqd/020:37:570
1217699300,2cyclictest121rcu_preempt20:05:530
139291290,0ptp4l401ktimersoftd/323:07:443
12179992924,3cyclictest41-21ksoftirqd/322:07:303
12179992924,3cyclictest41-21ksoftirqd/321:47:423
12179992923,4cyclictest41-21ksoftirqd/323:43:143
12179992923,4cyclictest41-21ksoftirqd/321:06:133
12178992924,3cyclictest33-21ksoftirqd/223:08:152
12178992923,4cyclictest33-21ksoftirqd/220:06:372
12176992924,3cyclictest9-21ksoftirqd/023:36:090
12176992924,3cyclictest9-21ksoftirqd/019:27:440
12179992823,3cyclictest41-21ksoftirqd/320:01:503
12178992823,3cyclictest33-21ksoftirqd/223:26:562
12178992823,3cyclictest33-21ksoftirqd/223:02:262
12178992823,3cyclictest33-21ksoftirqd/200:19:562
12178992821,4cyclictest33-21ksoftirqd/221:18:072
12176992823,3cyclictest9-21ksoftirqd/022:38:490
12176992823,3cyclictest9-21ksoftirqd/022:11:050
12176992823,3cyclictest9-21ksoftirqd/019:49:540
12176992721,4cyclictest9-21ksoftirqd/021:00:390
12179992621,3cyclictest41-21ksoftirqd/300:26:523
12176992621,3cyclictest9-21ksoftirqd/021:24:380
12176992620,4cyclictest9-21ksoftirqd/022:46:500
12176992520,3cyclictest9-21ksoftirqd/023:48:120
12176992519,4cyclictest9-21ksoftirqd/022:29:580
12176992519,4cyclictest9-21ksoftirqd/022:00:240
12176992419,3cyclictest9-21ksoftirqd/020:18:240
12176992318,3cyclictest9-21ksoftirqd/019:31:360
12178992116,3cyclictest33-21ksoftirqd/219:41:512
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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