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2025-12-26 - 12:26
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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 Dec 26, 2025 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591235172,51phc2sys0-21swapper/319:06:303
317932234168,23sleep10-21swapper/119:08:191
318412217173,33sleep20-21swapper/219:08:572
317622202169,22sleep00-21swapper/019:07:540
495121530,6sleep33221999cyclictest23:50:183
319242138114,13sleep20-21swapper/219:10:002
32216996228,5cyclictest9-21ksoftirqd/022:50:300
32216996129,6cyclictest9-21ksoftirqd/021:15:250
32216996128,5cyclictest9-21ksoftirqd/020:10:170
32216996027,6cyclictest9-21ksoftirqd/022:20:270
32216996027,4cyclictest9-21ksoftirqd/020:45:000
32216996026,4cyclictest9-21ksoftirqd/021:50:000
32216996022,5cyclictest9-21ksoftirqd/000:25:210
53492590,6sleep33221999cyclictest19:20:163
32216995930,7cyclictest9-21ksoftirqd/019:40:280
32216995928,4cyclictest9-21ksoftirqd/020:16:080
32216995925,7cyclictest9-21ksoftirqd/020:50:210
32216995924,7cyclictest9-21ksoftirqd/021:00:190
32218995820,7cyclictest33-21ksoftirqd/223:55:242
32216995829,3cyclictest9-21ksoftirqd/022:15:000
32216995828,4cyclictest9-21ksoftirqd/020:50:000
32216995827,6cyclictest9-21ksoftirqd/019:51:010
32216995827,6cyclictest9-21ksoftirqd/019:51:010
32216995827,4cyclictest9-21ksoftirqd/022:25:180
32216995826,7cyclictest9-21ksoftirqd/023:10:190
32216995826,4cyclictest9-21ksoftirqd/021:40:210
32216995824,6cyclictest9-21ksoftirqd/023:20:240
32216995824,4cyclictest9-21ksoftirqd/022:40:000
32216995822,6cyclictest9-21ksoftirqd/020:05:260
32216995820,6cyclictest9-21ksoftirqd/020:20:220
32216995729,4cyclictest9-21ksoftirqd/022:00:190
32216995726,4cyclictest9-21ksoftirqd/021:55:010
32216995724,4cyclictest9-21ksoftirqd/021:25:200
32216995723,6cyclictest9-21ksoftirqd/000:35:220
32216995723,5cyclictest9-21ksoftirqd/021:35:170
32216995722,6cyclictest9-21ksoftirqd/019:10:130
32216995722,4cyclictest9-21ksoftirqd/021:10:250
32216995720,6cyclictest9-21ksoftirqd/020:55:210
32216995720,6cyclictest9-21ksoftirqd/020:55:200
32216995716,4cyclictest9-21ksoftirqd/023:40:220
32216995630,6cyclictest9-21ksoftirqd/020:30:280
32216995627,3cyclictest9-21ksoftirqd/019:20:130
32216995624,4cyclictest9-21ksoftirqd/000:20:170
32216995623,6cyclictest9-21ksoftirqd/022:30:180
32216995620,6cyclictest9-21ksoftirqd/023:45:170
32216995526,4cyclictest9-21ksoftirqd/000:31:030
32216995525,8cyclictest9-21ksoftirqd/022:15:000
32216995524,6cyclictest9-21ksoftirqd/019:45:180
32216995523,7cyclictest9-21ksoftirqd/019:35:200
32216995523,3cyclictest9-21ksoftirqd/000:05:260
32216995522,5cyclictest9-21ksoftirqd/019:30:170
32216995521,7cyclictest9-21ksoftirqd/022:45:210
32216995521,6cyclictest9-21ksoftirqd/020:00:210
32216995521,5cyclictest9-21ksoftirqd/021:05:170
32216995514,8cyclictest9-21ksoftirqd/023:35:260
122242550,1sleep10-21swapper/122:55:281
32216995425,3cyclictest9-21ksoftirqd/019:58:220
32216995425,3cyclictest9-21ksoftirqd/019:58:220
32216995423,7cyclictest9-21ksoftirqd/023:25:260
32216995416,4cyclictest9-21ksoftirqd/000:10:230
32216995415,10cyclictest9-21ksoftirqd/022:05:170
139291540,1ptp4l391rcuc/322:08:013
3221699536,2cyclictest22456-21latency_hist23:20:010
32216995324,8cyclictest9-21ksoftirqd/020:25:200
32216995317,4cyclictest9-21ksoftirqd/023:00:010
32216995218,4cyclictest9-21ksoftirqd/019:15:270
32216995218,10cyclictest9-21ksoftirqd/021:30:270
32216995217,4cyclictest9-21ksoftirqd/019:25:260
32216995124,8cyclictest9-21ksoftirqd/023:55:010
32216995122,8cyclictest9-21ksoftirqd/023:30:180
32216995120,7cyclictest9-21ksoftirqd/021:55:190
32216995119,4cyclictest9-21ksoftirqd/000:15:160
32216995119,3cyclictest9-21ksoftirqd/022:40:200
32218995017,9cyclictest33-21ksoftirqd/220:55:232
32218995017,9cyclictest33-21ksoftirqd/220:55:222
3221699508,3cyclictest9-21ksoftirqd/021:24:590
3221699502,8cyclictest9-21ksoftirqd/023:00:150
32216995018,5cyclictest9-21ksoftirqd/023:55:520
32216995015,4cyclictest9-21ksoftirqd/023:05:140
32218994834,12cyclictest33-21ksoftirqd/219:20:002
3221699487,6cyclictest9-21ksoftirqd/000:00:170
3221899479,4cyclictest33-21ksoftirqd/220:30:002
32218994713,4cyclictest33-21ksoftirqd/219:40:242
3221899456,3cyclictest33-21ksoftirqd/221:40:222
32218994516,7cyclictest33-21ksoftirqd/220:10:002
32218994515,4cyclictest33-21ksoftirqd/222:15:172
32218994514,4cyclictest33-21ksoftirqd/221:45:212
3221699450,2cyclictest121rcu_preempt20:35:280
139291450,0ptp4l401ktimersoftd/322:17:123
32219994430,12cyclictest41-21ksoftirqd/319:30:113
3221899448,6cyclictest33-21ksoftirqd/219:50:202
3221899448,6cyclictest33-21ksoftirqd/219:50:202
3221899446,4cyclictest33-21ksoftirqd/221:55:292
32218994431,10cyclictest33-21ksoftirqd/223:40:192
139291440,0ptp4l401ktimersoftd/319:50:223
139291440,0ptp4l401ktimersoftd/319:50:213
3221899439,4cyclictest33-21ksoftirqd/222:45:282
3221899438,4cyclictest33-21ksoftirqd/220:20:162
3221899432,6cyclictest33-21ksoftirqd/223:30:182
139291430,0ptp4l401ktimersoftd/322:25:183
139291430,0ptp4l401ktimersoftd/321:43:103
139291430,0ptp4l401ktimersoftd/320:32:493
139291430,0ptp4l401ktimersoftd/319:56:313
139291430,0ptp4l401ktimersoftd/319:56:313
3221899429,6cyclictest33-21ksoftirqd/221:35:132
3221899426,10cyclictest33-21ksoftirqd/223:15:252
3221899425,3cyclictest33-21ksoftirqd/222:40:152
3221899424,3cyclictest33-21ksoftirqd/221:00:182
32218994236,4cyclictest33-21ksoftirqd/220:50:282
32218994224,15cyclictest33-21ksoftirqd/222:25:002
32218994217,5cyclictest33-21ksoftirqd/222:25:202
32217994215,25cyclictest0-21swapper/122:15:251
1395914232,4phc2sys0-21swapper/319:10:003
139291420,0ptp4l401ktimersoftd/323:22:593
139291420,0ptp4l401ktimersoftd/320:25:223
139291420,0ptp4l401ktimersoftd/320:23:113
139291420,0ptp4l401ktimersoftd/320:04:333
3221899417,5cyclictest33-21ksoftirqd/223:20:202
3221899415,7cyclictest33-21ksoftirqd/221:15:282
32218994137,2cyclictest33-21ksoftirqd/223:40:002
32218994136,3cyclictest33-21ksoftirqd/220:45:002
32218994131,8cyclictest33-21ksoftirqd/200:30:282
32218994125,5cyclictest33-21ksoftirqd/221:15:002
32218994122,17cyclictest33-21ksoftirqd/219:45:142
3221899412,10cyclictest33-21ksoftirqd/221:25:182
3221799410,38cyclictest217-21systemd-journal21:45:251
3221899407,4cyclictest33-21ksoftirqd/223:50:222
3221899406,6cyclictest33-21ksoftirqd/221:10:002
3221899405,3cyclictest121rcu_preempt20:30:262
32218994012,6cyclictest33-21ksoftirqd/223:05:152
3221899394,4cyclictest33-21ksoftirqd/221:55:002
3221899394,2cyclictest121rcu_preempt00:15:202
32218993935,2cyclictest33-21ksoftirqd/221:20:192
3221899393,3cyclictest33-21ksoftirqd/222:05:182
32218993929,8cyclictest33-21ksoftirqd/223:45:302
32218993929,8cyclictest33-21ksoftirqd/219:35:232
32218993911,7cyclictest33-21ksoftirqd/223:10:312
32219993833,3cyclictest41-21ksoftirqd/323:10:193
32219993832,4cyclictest41-21ksoftirqd/300:08:353
3221899385,6cyclictest33-21ksoftirqd/219:30:162
3221899385,3cyclictest121rcu_preempt22:30:202
3221899384,3cyclictest121rcu_preempt22:35:232
32218993834,3cyclictest33-21ksoftirqd/223:25:202
32218993834,3cyclictest33-21ksoftirqd/220:00:002
32218993834,3cyclictest33-21ksoftirqd/220:00:002
32218993833,3cyclictest33-21ksoftirqd/222:15:002
32218993833,3cyclictest33-21ksoftirqd/200:10:302
32218993832,3cyclictest33-21ksoftirqd/200:20:202
32218993831,4cyclictest33-21ksoftirqd/223:05:002
3221899381,5cyclictest33-21ksoftirqd/219:25:142
3221899378,4cyclictest33-21ksoftirqd/220:15:002
3221899377,3cyclictest33-21ksoftirqd/200:05:272
32218993732,3cyclictest33-21ksoftirqd/222:50:212
32218993732,3cyclictest33-21ksoftirqd/220:20:002
32218993732,2cyclictest33-21ksoftirqd/219:20:012
32218993731,4cyclictest33-21ksoftirqd/222:56:212
32218993724,4cyclictest33-21ksoftirqd/220:05:012
32219993631,3cyclictest41-21ksoftirqd/323:05:123
32219993631,3cyclictest41-21ksoftirqd/320:08:203
32219993631,3cyclictest41-21ksoftirqd/319:40:123
32219993630,4cyclictest41-21ksoftirqd/321:31:253
32219993630,4cyclictest41-21ksoftirqd/321:11:253
32219993630,4cyclictest41-21ksoftirqd/320:10:103
32219993630,4cyclictest41-21ksoftirqd/300:39:323
3221899363,4cyclictest33-21ksoftirqd/220:35:162
32218993632,2cyclictest33-21ksoftirqd/220:50:002
32218993631,3cyclictest33-21ksoftirqd/200:00:532
32218993629,4cyclictest33-21ksoftirqd/200:36:412
3221899361,4cyclictest33-21ksoftirqd/222:00:292
32217993630,4cyclictest25-21ksoftirqd/120:33:471
32219993530,3cyclictest41-21ksoftirqd/300:16:013
32219993529,4cyclictest41-21ksoftirqd/323:48:133
32219993529,4cyclictest41-21ksoftirqd/321:59:383
32219993529,4cyclictest41-21ksoftirqd/300:20:343
32218993532,2cyclictest33-21ksoftirqd/221:30:192
32217993530,3cyclictest25-21ksoftirqd/121:05:111
32217993530,3cyclictest25-21ksoftirqd/120:10:031
32217993530,3cyclictest25-21ksoftirqd/100:28:261
32217993529,4cyclictest25-21ksoftirqd/123:29:261
32217993529,4cyclictest25-21ksoftirqd/122:44:171
32217993529,4cyclictest25-21ksoftirqd/100:04:121
32217993514,3cyclictest25158-21processes20:00:231
32217993514,3cyclictest12095-21ptp4l-jitter20:40:251
32217993513,3cyclictest2645-21tune2fs23:45:171
32219993429,3cyclictest41-21ksoftirqd/323:01:503
32219993429,3cyclictest41-21ksoftirqd/321:24:153
32219993428,4cyclictest41-21ksoftirqd/322:57:023
32219993428,4cyclictest41-21ksoftirqd/319:19:473
32218993429,3cyclictest33-21ksoftirqd/200:25:282
32217993429,3cyclictest25-21ksoftirqd/119:45:101
32217993428,4cyclictest25-21ksoftirqd/122:33:581
32217993428,4cyclictest25-21ksoftirqd/121:34:561
32217993428,4cyclictest25-21ksoftirqd/120:27:011
32217993428,4cyclictest25-21ksoftirqd/100:39:501
32217993414,3cyclictest31315-21timerandwakeup23:35:271
32217993414,3cyclictest13703-21if_enp1s023:00:181
32217993412,20cyclictest0-21swapper/122:10:261
32219993328,3cyclictest41-21ksoftirqd/323:31:533
32219993328,3cyclictest41-21ksoftirqd/321:48:153
32219993328,3cyclictest41-21ksoftirqd/321:27:293
32219993328,3cyclictest41-21ksoftirqd/300:26:053
32219993327,4cyclictest41-21ksoftirqd/323:25:063
32219993327,4cyclictest41-21ksoftirqd/322:22:563
32217993328,3cyclictest25-21ksoftirqd/123:55:111
32217993328,3cyclictest25-21ksoftirqd/122:24:151
32217993328,3cyclictest25-21ksoftirqd/120:50:351
32217993327,4cyclictest25-21ksoftirqd/123:23:241
32217993327,4cyclictest25-21ksoftirqd/121:27:501
32217993327,4cyclictest25-21ksoftirqd/121:18:321
32217993327,4cyclictest25-21ksoftirqd/120:55:091
32217993327,4cyclictest25-21ksoftirqd/120:55:091
32217993327,4cyclictest25-21ksoftirqd/100:18:121
3221999329,4cyclictest21312-21cat21:00:213
32219993227,3cyclictest41-21ksoftirqd/323:55:393
32219993227,3cyclictest41-21ksoftirqd/323:18:253
32219993227,3cyclictest41-21ksoftirqd/322:48:253
32219993227,3cyclictest41-21ksoftirqd/322:30:393
32219993226,4cyclictest41-21ksoftirqd/320:44:083
32219993226,4cyclictest41-21ksoftirqd/319:49:563
32219993225,4cyclictest312-21rs:main3
32219993213,17cyclictest19469-21timerandwakeup20:55:293
32219993213,17cyclictest19469-21timerandwakeup20:55:293
32217993227,3cyclictest25-21ksoftirqd/123:50:141
32217993227,3cyclictest25-21ksoftirqd/123:16:421
32217993227,3cyclictest25-21ksoftirqd/121:58:151
32217993227,3cyclictest25-21ksoftirqd/121:02:191
32217993227,3cyclictest25-21ksoftirqd/120:47:361
32217993227,3cyclictest25-21ksoftirqd/120:36:431
32217993226,4cyclictest25-21ksoftirqd/122:47:341
32217993226,4cyclictest25-21ksoftirqd/121:12:181
32217993226,4cyclictest25-21ksoftirqd/119:24:071
32219993126,3cyclictest41-21ksoftirqd/323:39:553
32219993126,3cyclictest41-21ksoftirqd/322:11:543
32219993125,4cyclictest41-21ksoftirqd/320:16:493
32219993125,4cyclictest41-21ksoftirqd/319:36:203
32217993126,3cyclictest25-21ksoftirqd/123:33:471
32217993126,3cyclictest25-21ksoftirqd/122:53:161
32217993126,3cyclictest25-21ksoftirqd/100:11:021
32217993125,4cyclictest25-21ksoftirqd/100:24:061
32217993124,4cyclictest25-21ksoftirqd/122:25:581
32217993124,4cyclictest25-21ksoftirqd/121:50:571
32219993025,3cyclictest41-21ksoftirqd/322:42:553
32219993025,3cyclictest41-21ksoftirqd/320:49:273
32219993025,3cyclictest41-21ksoftirqd/319:29:233
32219993024,4cyclictest41-21ksoftirqd/323:41:353
32219993024,4cyclictest41-21ksoftirqd/322:50:403
32219993024,4cyclictest41-21ksoftirqd/321:53:483
32219993024,4cyclictest41-21ksoftirqd/320:51:223
3221999301,7cyclictest1312-21snmpd22:35:133
32219993011,3cyclictest23227-21idleruntime21:05:173
3221799302,6cyclictest31232-21apt-get20:15:161
32217993025,3cyclictest25-21ksoftirqd/121:41:301
32217993024,4cyclictest25-21ksoftirqd/122:38:151
32217993024,4cyclictest25-21ksoftirqd/119:29:451
139291300,0ptp4l401ktimersoftd/320:37:423
32219992923,4cyclictest41-21ksoftirqd/300:11:203
32217992924,3cyclictest25-21ksoftirqd/122:09:511
32217992924,3cyclictest25-21ksoftirqd/121:20:441
32217992924,3cyclictest25-21ksoftirqd/119:43:441
32217992924,3cyclictest25-21ksoftirqd/119:37:051
32217992924,3cyclictest25-21ksoftirqd/100:07:401
32217992924,2cyclictest25-21ksoftirqd/120:05:161
32217992923,4cyclictest25-21ksoftirqd/123:07:151
32219992823,3cyclictest41-21ksoftirqd/322:03:003
32219992822,4cyclictest41-21ksoftirqd/321:16:173
32219992822,3cyclictest41-21ksoftirqd/321:37:003
32217992823,3cyclictest25-21ksoftirqd/121:36:211
32219992722,3cyclictest41-21ksoftirqd/300:03:243
32217992722,3cyclictest25-21ksoftirqd/100:30:071
32217992721,4cyclictest25-21ksoftirqd/119:33:051
32217992621,3cyclictest25-21ksoftirqd/123:42:081
32217992621,3cyclictest25-21ksoftirqd/119:12:441
32217992519,4cyclictest25-21ksoftirqd/119:18:411
32217992318,3cyclictest25-21ksoftirqd/122:02:041
32217992014,4cyclictest25-21ksoftirqd/123:14:411
32217991915,3cyclictest25-21ksoftirqd/119:56:331
32217991915,3cyclictest25-21ksoftirqd/119:56:321
32217991914,3cyclictest2265-21missed_timers20:20:221
32217991813,3cyclictest19248-21cpuspeed_turbos19:50:131
32217991813,3cyclictest19248-21cpuspeed_turbos19:50:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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