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2026-05-03 - 13:00
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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 rackdslot3.osadl.org (updated Sun May 03, 2026 00:45:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491236168,23phc2sys0-21swapper/319:06:563
88382229164,21sleep20-21swapper/219:06:472
87922208174,23sleep10-21swapper/119:06:091
87912202169,22sleep00-21swapper/019:06:080
3117621450,6sleep0938999cyclictest00:25:010
9389996331,4cyclictest9-21ksoftirqd/021:20:180
9390996234,4cyclictest25-21ksoftirqd/120:45:231
139391620,1ptp4l401ktimersoftd/320:12:383
139391620,1ptp4l401ktimersoftd/320:12:383
9389996125,3cyclictest9-21ksoftirqd/021:25:190
9389996125,3cyclictest9-21ksoftirqd/021:25:190
9389996122,5cyclictest9-21ksoftirqd/021:55:150
9389996028,5cyclictest9-21ksoftirqd/022:40:180
9390995937,3cyclictest25-21ksoftirqd/122:00:231
9390995925,6cyclictest25-21ksoftirqd/121:24:591
9390995923,4cyclictest25-21ksoftirqd/100:05:001
9390995918,8cyclictest25-21ksoftirqd/122:45:141
9389995932,4cyclictest9-21ksoftirqd/022:45:200
9389995929,4cyclictest9-21ksoftirqd/020:45:170
9389995924,4cyclictest9-21ksoftirqd/021:05:240
139391590,8ptp4l401ktimersoftd/322:05:243
9390995829,3cyclictest25-21ksoftirqd/100:30:141
9390995826,3cyclictest25-21ksoftirqd/123:35:001
9390995822,10cyclictest25-21ksoftirqd/123:15:251
9390995821,7cyclictest25-21ksoftirqd/122:55:221
9390995821,7cyclictest25-21ksoftirqd/122:55:221
9390995819,10cyclictest25-21ksoftirqd/119:15:271
9389995833,3cyclictest9-21ksoftirqd/023:15:230
9389995830,4cyclictest9-21ksoftirqd/000:15:150
9389995813,4cyclictest9-21ksoftirqd/022:55:240
9389995813,4cyclictest9-21ksoftirqd/022:55:240
9390995729,4cyclictest25-21ksoftirqd/123:20:111
9390995717,9cyclictest25-21ksoftirqd/120:55:271
9389995731,3cyclictest9-21ksoftirqd/000:35:260
9389995729,4cyclictest9-21ksoftirqd/022:30:170
9389995728,4cyclictest9-21ksoftirqd/022:10:240
9390995627,7cyclictest25-21ksoftirqd/121:10:171
9390995621,8cyclictest25-21ksoftirqd/120:15:211
9390995619,10cyclictest25-21ksoftirqd/100:15:161
9389995629,4cyclictest9-21ksoftirqd/023:05:250
9389995629,4cyclictest9-21ksoftirqd/020:00:210
9389995625,4cyclictest9-21ksoftirqd/021:50:150
9389995624,3cyclictest9-21ksoftirqd/023:40:180
9389995623,4cyclictest9-21ksoftirqd/020:35:140
198772560,3sleep119881-21latency21:45:191
9390995521,8cyclictest25-21ksoftirqd/121:55:241
9389995529,3cyclictest9-21ksoftirqd/023:55:150
9389995529,3cyclictest9-21ksoftirqd/021:00:280
9389995528,4cyclictest9-21ksoftirqd/021:10:160
9389995527,4cyclictest9-21ksoftirqd/000:00:140
9389995525,3cyclictest9-21ksoftirqd/021:40:250
9389995524,7cyclictest9-21ksoftirqd/021:30:260
9389995523,4cyclictest9-21ksoftirqd/020:25:130
9389995522,8cyclictest9-21ksoftirqd/023:35:160
139391550,0ptp4l401ktimersoftd/320:01:503
939199546,5cyclictest14156-21awk20:25:192
9390995423,10cyclictest25-21ksoftirqd/121:50:261
9390995420,8cyclictest25-21ksoftirqd/120:50:211
9390995416,10cyclictest25-21ksoftirqd/120:10:211
9390995416,10cyclictest25-21ksoftirqd/120:10:211
9389995425,4cyclictest9-21ksoftirqd/022:15:250
9389995425,3cyclictest9-21ksoftirqd/022:50:240
939199531,50cyclictest26707-21kworker/2:222:05:252
9390995331,3cyclictest25-21ksoftirqd/120:00:121
9389995327,4cyclictest9-21ksoftirqd/023:00:140
9389995326,4cyclictest9-21ksoftirqd/023:25:160
9389995323,3cyclictest9-21ksoftirqd/021:45:170
139391530,1ptp4l401ktimersoftd/322:58:493
139391530,1ptp4l401ktimersoftd/322:58:493
939199526,7cyclictest11399-21cut22:35:182
939199525,7cyclictest10432-21date22:35:012
9389995227,3cyclictest9-21ksoftirqd/019:45:180
9389995224,5cyclictest9-21ksoftirqd/020:50:150
9389995221,4cyclictest9-21ksoftirqd/019:50:240
9389995218,7cyclictest9-21ksoftirqd/022:30:010
170252520,2sleep20-21swapper/223:55:182
939199518,8cyclictest26301-21cat22:00:142
939199516,6cyclictest16501-21test21:40:012
9390995130,8cyclictest25-21ksoftirqd/121:15:191
9390995120,9cyclictest25-21ksoftirqd/120:25:211
9390995119,9cyclictest25-21ksoftirqd/121:25:121
9390995119,9cyclictest25-21ksoftirqd/121:25:121
9390995118,6cyclictest25-21ksoftirqd/123:00:201
9389995124,8cyclictest9-21ksoftirqd/023:20:120
9389995124,4cyclictest9-21ksoftirqd/019:20:260
9389995123,4cyclictest9-21ksoftirqd/023:50:190
9389995113,9cyclictest9-21ksoftirqd/023:45:020
939199506,7cyclictest20414-21sed19:30:252
9390995028,10cyclictest25-21ksoftirqd/119:35:011
9390995023,3cyclictest25-21ksoftirqd/119:44:411
9389995031,10cyclictest9-21ksoftirqd/021:20:000
9389995020,3cyclictest9-21ksoftirqd/020:15:120
939199491,6cyclictest0-21swapper/220:04:592
939199490,11cyclictest11554-21latency_hist19:15:002
9390994936,3cyclictest25-21ksoftirqd/122:05:211
9389994922,3cyclictest9-21ksoftirqd/000:30:190
9389994922,3cyclictest9-21ksoftirqd/000:05:200
9389994915,5cyclictest9-21ksoftirqd/019:45:000
939299482,44cyclictest27832-21kworker/3:223:17:343
939199486,6cyclictest14047-21cat21:35:142
939199485,7cyclictest1617-21irqrtprio22:15:202
939199485,6cyclictest22707-21ls20:45:142
939199483,6cyclictest19888-21latency21:45:182
9390994836,3cyclictest25-21ksoftirqd/119:25:181
9390994828,9cyclictest25-21ksoftirqd/120:30:221
9390994827,10cyclictest25-21ksoftirqd/121:30:131
9390994820,9cyclictest25-21ksoftirqd/121:00:241
9389994818,3cyclictest9-21ksoftirqd/020:15:000
9389994818,3cyclictest9-21ksoftirqd/020:15:000
939199473,6cyclictest17727-21/usr/sbin/munin20:35:192
939099477,7cyclictest25-21ksoftirqd/122:40:161
9390994724,3cyclictest25-21ksoftirqd/122:25:231
938999477,2cyclictest9-21ksoftirqd/019:59:590
938999473,3cyclictest9-21ksoftirqd/019:25:230
9389994722,4cyclictest9-21ksoftirqd/019:35:150
9389994715,6cyclictest9-21ksoftirqd/000:10:140
139391470,1ptp4l401ktimersoftd/323:56:583
939199466,8cyclictest32268-21ssh22:10:262
939199466,5cyclictest1751-21cut21:10:012
939199465,6cyclictest20705-21irqrtprio22:55:182
939199465,6cyclictest20705-21irqrtprio22:55:182
9390994630,5cyclictest25-21ksoftirqd/121:35:221
9390994626,10cyclictest25-21ksoftirqd/123:40:241
9390994623,9cyclictest25-21ksoftirqd/123:30:011
9390994621,10cyclictest25-21ksoftirqd/100:10:131
9390994616,9cyclictest25-21ksoftirqd/123:10:221
9390994611,8cyclictest25-21ksoftirqd/122:35:141
9389994635,3cyclictest9-21ksoftirqd/023:10:220
9389994635,3cyclictest9-21ksoftirqd/022:20:280
9389994632,4cyclictest9-21ksoftirqd/000:25:260
9389994630,5cyclictest9-21ksoftirqd/021:35:250
939199451,6cyclictest0-21swapper/219:20:002
9390994525,10cyclictest25-21ksoftirqd/120:20:131
9390994523,9cyclictest25-21ksoftirqd/120:35:171
939099452,2cyclictest121rcu_preempt21:40:221
939099452,2cyclictest121rcu_preempt00:25:251
9390994518,7cyclictest25-21ksoftirqd/100:05:401
9390994515,9cyclictest25-21ksoftirqd/123:35:141
9389994536,3cyclictest9-21ksoftirqd/020:35:000
9389994533,3cyclictest9-21ksoftirqd/023:30:130
9389994533,2cyclictest9-21ksoftirqd/020:55:260
9389994528,4cyclictest9-21ksoftirqd/022:05:190
9389994528,4cyclictest9-21ksoftirqd/019:15:000
938999450,6cyclictest21105-21apt-get19:35:010
939199447,6cyclictest27237-21irqrtprio00:15:192
939199446,7cyclictest17111-21smartctl19:25:162
939199442,5cyclictest0-21swapper/223:40:012
939199440,8cyclictest15575-21cat20:30:142
939099446,5cyclictest25-21ksoftirqd/123:45:211
939099443,3cyclictest25-21ksoftirqd/122:50:191
9390994424,9cyclictest25-21ksoftirqd/100:35:181
9390994418,7cyclictest25-21ksoftirqd/119:49:421
9390994413,2cyclictest25-21ksoftirqd/119:25:001
939099440,2cyclictest121rcu_preempt23:50:191
9389994432,3cyclictest9-21ksoftirqd/020:40:220
938999441,6cyclictest121rcu_preempt22:00:140
139391440,0ptp4l401ktimersoftd/323:36:063
939199431,5cyclictest0-21swapper/220:19:482
939099439,9cyclictest25-21ksoftirqd/120:10:001
939099439,9cyclictest25-21ksoftirqd/120:10:001
939099437,6cyclictest25-21ksoftirqd/119:50:241
939099435,4cyclictest25-21ksoftirqd/119:55:261
939099435,4cyclictest25-21ksoftirqd/119:40:001
939099434,2cyclictest121rcu_preempt22:30:131
939099433,2cyclictest25-21ksoftirqd/100:20:191
939099433,2cyclictest121rcu_preempt21:05:191
939099433,2cyclictest121rcu_preempt19:15:001
939099430,2cyclictest121rcu_preempt23:05:261
9389994328,4cyclictest9-21ksoftirqd/020:20:180
938999432,4cyclictest5567-21cron20:10:000
938999432,4cyclictest5567-21cron20:10:000
938999430,4cyclictest9-21ksoftirqd/019:15:240
139391430,0ptp4l401ktimersoftd/321:31:063
939099426,3cyclictest25-21ksoftirqd/122:15:141
939099425,3cyclictest25-21ksoftirqd/122:14:591
938999425,6cyclictest9-21ksoftirqd/022:35:180
139391420,0ptp4l401ktimersoftd/322:18:473
139391420,0ptp4l401ktimersoftd/320:19:533
939199412,6cyclictest0-21swapper/200:05:282
939099416,3cyclictest25-21ksoftirqd/122:20:141
939099412,9cyclictest25-21ksoftirqd/123:55:131
939099412,10cyclictest25-21ksoftirqd/120:45:001
939199404,7cyclictest268082sleep223:08:352
9392993934,3cyclictest1742-21fschecks_count00:30:153
939199390,8cyclictest30035-21memory00:20:222
939199382,6cyclictest0-21swapper/221:55:212
9391993817,5cyclictest33-21ksoftirqd/200:03:082
939199381,11cyclictest3318-21chrt00:32:412
139391380,0ptp4l401ktimersoftd/320:35:563
939299373,2cyclictest121rcu_preempt20:25:123
939199376,29cyclictest26707-21kworker/2:221:00:232
939199373,4cyclictest33-21ksoftirqd/221:54:122
9391993730,5cyclictest33-21ksoftirqd/223:01:292
939199370,6cyclictest14039-21ls22:40:192
139391370,1ptp4l391rcuc/300:06:063
9392993630,4cyclictest41-21ksoftirqd/322:12:403
9392993630,4cyclictest41-21ksoftirqd/300:10:103
939199362,5cyclictest0-21swapper/223:10:232
9392993529,4cyclictest41-21ksoftirqd/323:44:113
9392993529,4cyclictest41-21ksoftirqd/323:09:133
9392993529,4cyclictest41-21ksoftirqd/322:26:123
9392993529,4cyclictest41-21ksoftirqd/320:51:173
9392993529,4cyclictest41-21ksoftirqd/319:18:433
9392993529,4cyclictest41-21ksoftirqd/300:17:123
9391993530,3cyclictest33-21ksoftirqd/221:30:592
9391993529,4cyclictest33-21ksoftirqd/221:16:322
9392993429,3cyclictest41-21ksoftirqd/323:30:103
9392993429,3cyclictest41-21ksoftirqd/321:40:123
9392993428,4cyclictest41-21ksoftirqd/321:09:473
9392993428,4cyclictest41-21ksoftirqd/319:58:103
9392993427,5cyclictest41-21ksoftirqd/319:21:563
9391993428,4cyclictest33-21ksoftirqd/220:50:072
9391993428,4cyclictest33-21ksoftirqd/220:44:272
139391340,0ptp4l401ktimersoftd/321:35:263
9392993328,3cyclictest41-21ksoftirqd/321:27:403
9392993328,3cyclictest41-21ksoftirqd/321:27:393
9392993327,4cyclictest41-21ksoftirqd/320:42:513
9392993327,4cyclictest41-21ksoftirqd/300:22:543
9391993328,3cyclictest33-21ksoftirqd/220:55:132
9391993328,3cyclictest33-21ksoftirqd/220:13:132
9391993328,3cyclictest33-21ksoftirqd/220:13:132
9391993328,3cyclictest33-21ksoftirqd/219:45:122
9391993328,3cyclictest33-21ksoftirqd/200:40:012
9391993327,4cyclictest33-21ksoftirqd/223:32:312
9391993327,4cyclictest33-21ksoftirqd/220:20:072
939199332,4cyclictest33-21ksoftirqd/221:11:372
939199332,28cyclictest18396-21kworker/2:023:15:232
939199330,5cyclictest321ktimersoftd/200:10:242
139391330,5ptp4l401ktimersoftd/320:05:283
139391330,5ptp4l401ktimersoftd/320:05:283
139391330,1ptp4l401ktimersoftd/321:14:373
9392993227,3cyclictest41-21ksoftirqd/322:30:153
9392993226,4cyclictest41-21ksoftirqd/323:51:373
9392993226,4cyclictest41-21ksoftirqd/323:22:453
9392993226,4cyclictest41-21ksoftirqd/322:36:283
9392993226,4cyclictest41-21ksoftirqd/322:21:153
9392993226,4cyclictest41-21ksoftirqd/319:38:593
9392993226,4cyclictest1065-21cron00:30:003
939199327,23cyclictest5327-21kworker/2:122:50:132
939199324,12cyclictest23943-21taskset19:40:122
939199322,6cyclictest0-21swapper/223:50:162
9391993226,4cyclictest33-21ksoftirqd/223:49:402
9391993226,4cyclictest33-21ksoftirqd/223:27:252
9391993226,4cyclictest33-21ksoftirqd/221:26:432
9391993226,4cyclictest33-21ksoftirqd/221:26:432
9391993226,4cyclictest33-21ksoftirqd/221:20:052
9391993226,4cyclictest33-21ksoftirqd/219:58:042
939199322,5cyclictest13751-21runrttasks19:17:152
9392993125,4cyclictest41-21ksoftirqd/323:27:433
9392993125,4cyclictest41-21ksoftirqd/319:30:383
9391993125,4cyclictest33-21ksoftirqd/219:37:192
9391993124,5cyclictest33-21ksoftirqd/222:27:482
139391310,0ptp4l401ktimersoftd/319:42:013
9392993025,3cyclictest41-21ksoftirqd/320:55:113
9392993025,3cyclictest41-21ksoftirqd/319:12:183
9392993025,3cyclictest41-21ksoftirqd/300:01:533
9391993025,3cyclictest33-21ksoftirqd/222:24:052
9391993023,4cyclictest33-21ksoftirqd/223:41:182
139391300,8ptp4l401ktimersoftd/321:45:373
139391300,0ptp4l401ktimersoftd/319:48:493
9392992924,3cyclictest41-21ksoftirqd/319:52:163
9391992923,4cyclictest33-21ksoftirqd/223:22:152
139391290,7ptp4l401ktimersoftd/323:46:413
139391290,0ptp4l401ktimersoftd/321:20:093
9392992823,3cyclictest41-21ksoftirqd/323:10:153
9392992823,3cyclictest41-21ksoftirqd/323:02:083
9392992823,3cyclictest41-21ksoftirqd/322:04:383
9391992823,3cyclictest33-21ksoftirqd/220:05:492
9391992823,3cyclictest33-21ksoftirqd/220:05:492
9391992823,3cyclictest33-21ksoftirqd/200:26:432
9391992822,4cyclictest33-21ksoftirqd/222:47:412
9391992822,4cyclictest33-21ksoftirqd/219:52:562
139391280,0ptp4l401ktimersoftd/320:32:013
9392992722,3cyclictest41-21ksoftirqd/322:46:303
9392992722,3cyclictest41-21ksoftirqd/300:36:153
9392992721,4cyclictest41-21ksoftirqd/321:52:113
139391270,0ptp4l401ktimersoftd/321:15:093
9392992621,3cyclictest41-21ksoftirqd/321:04:123
9392992620,4cyclictest41-21ksoftirqd/320:23:453
139391260,0ptp4l401ktimersoftd/320:47:593
9392992520,3cyclictest41-21ksoftirqd/319:25:043
9392992419,3cyclictest41-21ksoftirqd/322:40:093
139391230,0ptp4l401ktimersoftd/322:50:143
139391230,0ptp4l401ktimersoftd/321:55:273
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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