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2026-07-04 - 06:13
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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 all highest latencies:
System rackdslot2.osadl.org (updated Sat Jul 04, 2026 00:45:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185472228163,20sleep00-21swapper/019:09:390
139591207174,21phc2sys0-21swapper/319:05:383
185292206172,22sleep20-21swapper/219:09:252
182472205172,22sleep10-21swapper/119:05:511
1886699620,19cyclictest10580-21apt-key00:27:431
1886699600,19cyclictest1753-21df_abs00:10:141
1886699590,20cyclictest22970-21latency_hist22:40:001
1886699590,20cyclictest11685-21cat20:00:191
24862580,3sleep3401ktimersoftd/319:40:263
1886799570,18cyclictest32559-21cpuspeed23:00:122
1886699571,22cyclictest22936-21mailstats23:45:241
1886799567,6cyclictest1216-21cat21:55:012
1886799564,6cyclictest20985-21tune2fs20:20:152
1886799561,12cyclictest14150-21cut22:20:172
222382540,4sleep322242-21fschecks_count21:30:153
1886799545,7cyclictest29767-21irqrtprio21:45:172
1886799540,11cyclictest17908-21sed21:20:192
1886799535,7cyclictest2877-21df_abs20:50:142
1886799522,5cyclictest11307-21awk21:05:282
82332510,3sleep18234-21sort19:55:001
246322510,4sleep124635-21timerandwakeup20:25:261
1886799519,4cyclictest33-21ksoftirqd/222:37:152
1886799514,6cyclictest18161-21mailstats23:35:232
18868995030,17cyclictest41-21ksoftirqd/300:04:583
18865995032,3cyclictest9-21ksoftirqd/019:45:160
18865995015,6cyclictest9-21ksoftirqd/000:35:000
18868994929,17cyclictest41-21ksoftirqd/300:35:103
18865994912,6cyclictest9-21ksoftirqd/021:50:150
18865994814,5cyclictest9-21ksoftirqd/020:19:590
1886799474,6cyclictest11836-21cat23:25:002
18865994614,6cyclictest9-21ksoftirqd/022:05:000
18865994613,4cyclictest9-21ksoftirqd/020:05:250
18865994612,4cyclictest9-21ksoftirqd/022:10:230
18865994610,7cyclictest9-21ksoftirqd/000:10:180
1886799452,6cyclictest33-21ksoftirqd/200:25:222
18865994513,6cyclictest9-21ksoftirqd/021:10:170
18865994512,4cyclictest9-21ksoftirqd/022:15:170
18865994511,6cyclictest9-21ksoftirqd/023:15:000
18865994511,4cyclictest9-21ksoftirqd/022:55:120
1886799445,7cyclictest1250-21cat00:10:012
1886599447,8cyclictest9-21ksoftirqd/020:55:220
18865994432,3cyclictest9-21ksoftirqd/020:14:590
18865994413,4cyclictest9-21ksoftirqd/022:20:120
18865994411,5cyclictest9-21ksoftirqd/023:35:000
18865994312,5cyclictest9-21ksoftirqd/021:05:140
18865994311,4cyclictest9-21ksoftirqd/023:35:140
18865994310,4cyclictest9-21ksoftirqd/019:50:240
1886599429,6cyclictest9-21ksoftirqd/021:55:170
1886599428,6cyclictest9-21ksoftirqd/019:10:180
1886599425,6cyclictest9-21ksoftirqd/023:15:260
18865994236,3cyclictest9-21ksoftirqd/019:30:250
18865994215,6cyclictest9-21ksoftirqd/022:45:170
18865994211,5cyclictest9-21ksoftirqd/021:20:190
18865994210,6cyclictest9-21ksoftirqd/000:05:210
1886799412,4cyclictest33-21ksoftirqd/219:25:232
1886799411,5cyclictest321ktimersoftd/221:55:182
1886799410,8cyclictest31782-21meminfo19:35:202
1886799410,8cyclictest31782-21meminfo19:35:202
1886799410,14cyclictest20732-21sshd19:11:232
1886599419,6cyclictest9-21ksoftirqd/020:50:150
1886599417,7cyclictest9-21ksoftirqd/022:35:160
1886599417,5cyclictest9-21ksoftirqd/023:05:140
1886599417,4cyclictest9-21ksoftirqd/020:00:240
18865994137,2cyclictest464-21fschecks_count23:00:130
18865994127,3cyclictest9-21ksoftirqd/019:19:590
18865994111,3cyclictest9-21ksoftirqd/020:45:190
139291410,0ptp4l401ktimersoftd/322:10:243
1886799400,13cyclictest31942-21vmstat20:40:282
1886599409,5cyclictest9-21ksoftirqd/019:55:180
1886599409,4cyclictest9-21ksoftirqd/021:50:000
1886599408,6cyclictest9-21ksoftirqd/022:30:010
1886599406,6cyclictest9-21ksoftirqd/021:05:010
1886599406,6cyclictest9-21ksoftirqd/000:15:180
1886599406,4cyclictest9-21ksoftirqd/019:20:180
18865994013,4cyclictest9-21ksoftirqd/020:35:250
18865994013,3cyclictest9-21ksoftirqd/023:45:140
18865994010,5cyclictest9-21ksoftirqd/023:25:140
1886599400,2cyclictest121rcu_preempt19:35:210
1886599400,2cyclictest121rcu_preempt19:35:210
1886899391,13cyclictest9448-21cron21:04:593
1886799394,5cyclictest33-21ksoftirqd/222:27:122
1886699391,23cyclictest7535-21df23:15:141
1886599399,3cyclictest9-21ksoftirqd/021:25:120
1886599398,6cyclictest9-21ksoftirqd/021:35:130
1886599398,5cyclictest9-21ksoftirqd/021:30:150
1886599398,5cyclictest9-21ksoftirqd/020:40:130
1886599398,4cyclictest9-21ksoftirqd/022:30:120
1886599397,5cyclictest9-21ksoftirqd/019:40:260
18865993933,3cyclictest9-21ksoftirqd/000:30:000
18868993832,4cyclictest41-21ksoftirqd/322:57:003
18868993814,3cyclictest14542-21needreboot22:20:203
18868993813,22cyclictest17751-21irqrtprio21:20:203
1886599387,9cyclictest9-21ksoftirqd/022:05:250
1886599387,6cyclictest9-21ksoftirqd/021:40:180
1886599387,6cyclictest9-21ksoftirqd/000:35:170
1886599386,6cyclictest9-21ksoftirqd/023:20:140
1886599386,5cyclictest9-21ksoftirqd/023:55:210
18865993833,3cyclictest9-21ksoftirqd/020:30:180
18865993832,3cyclictest9-21ksoftirqd/000:05:000
18868993732,3cyclictest41-21ksoftirqd/321:07:403
18868993732,3cyclictest41-21ksoftirqd/320:11:213
18868993732,3cyclictest41-21ksoftirqd/319:49:383
18868993731,4cyclictest41-21ksoftirqd/323:36:033
18868993731,4cyclictest41-21ksoftirqd/322:09:143
18868993731,4cyclictest41-21ksoftirqd/319:51:413
18868993731,4cyclictest41-21ksoftirqd/300:19:403
18868993731,4cyclictest41-21ksoftirqd/300:07:563
18868993731,3cyclictest41-21ksoftirqd/323:20:403
18868993730,5cyclictest41-21ksoftirqd/321:41:483
1886899372,9cyclictest1312-21snmpd21:10:143
18867993731,4cyclictest33-21ksoftirqd/223:17:532
18867993731,4cyclictest33-21ksoftirqd/221:10:352
18867993731,4cyclictest33-21ksoftirqd/219:47:362
18867993730,4cyclictest33-21ksoftirqd/200:00:002
18866993731,4cyclictest25-21ksoftirqd/120:52:291
18866993731,4cyclictest25-21ksoftirqd/100:39:071
1886599378,4cyclictest9-21ksoftirqd/000:20:180
1886599377,10cyclictest9-21ksoftirqd/021:15:210
18865993732,3cyclictest9-21ksoftirqd/023:55:000
1886599372,2cyclictest121rcu_preempt19:25:160
18868993630,4cyclictest41-21ksoftirqd/323:28:213
18868993630,4cyclictest41-21ksoftirqd/320:36:143
18868993630,4cyclictest41-21ksoftirqd/320:34:583
18868993630,4cyclictest41-21ksoftirqd/320:08:313
18867993631,3cyclictest33-21ksoftirqd/222:40:022
18867993631,3cyclictest33-21ksoftirqd/222:31:552
18867993631,3cyclictest33-21ksoftirqd/200:30:182
18867993631,3cyclictest33-21ksoftirqd/200:15:302
18866993631,3cyclictest25-21ksoftirqd/100:20:101
18866993629,4cyclictest25-21ksoftirqd/122:21:201
18866993629,4cyclictest25-21ksoftirqd/120:24:501
1886599366,6cyclictest9-21ksoftirqd/020:25:250
1886599365,5cyclictest9-21ksoftirqd/023:40:150
1886599363,5cyclictest9-21ksoftirqd/022:40:200
1886599361,6cyclictest9-21ksoftirqd/022:50:140
139291360,1ptp4l401ktimersoftd/322:45:223
18868993530,3cyclictest41-21ksoftirqd/319:58:483
18868993529,4cyclictest41-21ksoftirqd/323:55:123
18868993529,4cyclictest41-21ksoftirqd/323:33:383
18868993529,4cyclictest41-21ksoftirqd/323:15:133
18868993529,4cyclictest41-21ksoftirqd/322:52:023
18868993529,4cyclictest41-21ksoftirqd/322:36:183
18868993529,4cyclictest41-21ksoftirqd/322:15:573
18868993529,4cyclictest41-21ksoftirqd/319:33:563
18868993511,4cyclictest23303-21sed22:40:153
1886799356,6cyclictest30603-21cat19:35:002
18867993530,3cyclictest33-21ksoftirqd/222:55:042
18867993530,3cyclictest33-21ksoftirqd/220:14:292
18867993529,4cyclictest33-21ksoftirqd/223:29:082
18867993529,4cyclictest33-21ksoftirqd/221:27:082
18866993529,4cyclictest25-21ksoftirqd/122:05:391
18866993529,4cyclictest25-21ksoftirqd/120:19:331
18866993529,4cyclictest25-21ksoftirqd/120:07:531
18866993529,4cyclictest25-21ksoftirqd/119:27:291
18866993529,4cyclictest25-21ksoftirqd/119:13:411
18866993529,4cyclictest25-21ksoftirqd/100:15:291
1886599357,4cyclictest9-21ksoftirqd/020:20:130
18868993429,3cyclictest41-21ksoftirqd/323:51:283
18868993429,3cyclictest41-21ksoftirqd/321:58:033
18868993429,3cyclictest41-21ksoftirqd/320:45:003
18868993429,3cyclictest41-21ksoftirqd/300:31:163
18868993428,4cyclictest41-21ksoftirqd/320:24:053
18868993428,3cyclictest41-21ksoftirqd/321:16:593
18868993427,4cyclictest41-21ksoftirqd/320:04:593
18868993412,3cyclictest500-21entropy20:45:153
18868993411,3cyclictest24064-21cat20:25:193
18868993410,3cyclictest390-21sed23:00:123
18868993410,3cyclictest3051-21timerwakeupswit00:10:263
18867993428,4cyclictest33-21ksoftirqd/222:05:442
18867993428,4cyclictest33-21ksoftirqd/221:44:542
18867993428,4cyclictest33-21ksoftirqd/220:56:082
18867993428,4cyclictest33-21ksoftirqd/200:22:442
1886799342,5cyclictest33-21ksoftirqd/221:35:222
18866993429,3cyclictest25-21ksoftirqd/123:53:141
18866993429,3cyclictest25-21ksoftirqd/100:04:451
18866993428,4cyclictest25-21ksoftirqd/123:58:481
18866993428,4cyclictest25-21ksoftirqd/123:04:521
18866993428,4cyclictest25-21ksoftirqd/100:06:101
18866993427,4cyclictest25-21ksoftirqd/121:08:181
18868993328,3cyclictest41-21ksoftirqd/323:06:503
18868993327,4cyclictest41-21ksoftirqd/321:25:463
18868993327,4cyclictest41-21ksoftirqd/319:16:403
18868993326,4cyclictest41-21ksoftirqd/322:03:173
18868993310,3cyclictest19190-21sed19:10:153
1886799337,5cyclictest8964-21awk19:55:162
1886799336,6cyclictest8294-21cat19:55:012
18867993328,3cyclictest33-21ksoftirqd/219:44:382
18867993328,3cyclictest33-21ksoftirqd/200:10:482
18867993327,4cyclictest33-21ksoftirqd/223:52:192
18867993327,4cyclictest33-21ksoftirqd/223:34:582
18867993327,4cyclictest33-21ksoftirqd/223:06:452
18867993327,4cyclictest33-21ksoftirqd/200:38:242
18867993316,7cyclictest33-21ksoftirqd/220:31:042
18866993328,3cyclictest25-21ksoftirqd/122:03:061
18866993328,3cyclictest25-21ksoftirqd/121:44:001
18866993328,3cyclictest25-21ksoftirqd/119:16:061
18866993327,4cyclictest25-21ksoftirqd/123:40:221
18866993327,4cyclictest25-21ksoftirqd/122:50:481
18866993327,4cyclictest25-21ksoftirqd/122:44:301
18866993327,4cyclictest25-21ksoftirqd/122:14:381
18866993327,4cyclictest25-21ksoftirqd/121:50:421
18866993327,4cyclictest25-21ksoftirqd/120:56:381
18866993327,4cyclictest25-21ksoftirqd/120:47:281
18868993227,3cyclictest41-21ksoftirqd/323:45:083
18868993227,3cyclictest41-21ksoftirqd/321:51:003
18868993227,3cyclictest41-21ksoftirqd/321:38:303
18867993227,3cyclictest33-21ksoftirqd/223:41:322
18867993227,3cyclictest33-21ksoftirqd/220:45:122
18867993226,4cyclictest33-21ksoftirqd/223:46:372
18867993226,4cyclictest33-21ksoftirqd/222:54:032
18867993226,4cyclictest33-21ksoftirqd/220:28:272
18867993226,4cyclictest33-21ksoftirqd/219:21:482
18867993226,4cyclictest33-21ksoftirqd/219:17:022
18867993225,5cyclictest33-21ksoftirqd/220:09:422
18866993227,3cyclictest25-21ksoftirqd/123:12:051
18866993227,3cyclictest25-21ksoftirqd/121:47:211
18866993226,4cyclictest25-21ksoftirqd/123:34:571
18866993226,4cyclictest25-21ksoftirqd/122:55:411
18866993226,4cyclictest25-21ksoftirqd/121:02:121
18866993226,4cyclictest25-21ksoftirqd/119:44:491
18866993226,4cyclictest25-21ksoftirqd/119:30:571
18866993226,4cyclictest25-21ksoftirqd/100:30:491
18866993226,3cyclictest25-21ksoftirqd/120:10:101
1886699320,1cyclictest0-21swapper/120:30:241
18868993126,3cyclictest41-21ksoftirqd/323:42:173
18868993126,3cyclictest41-21ksoftirqd/323:12:453
18868993126,3cyclictest41-21ksoftirqd/322:27:553
18868993126,3cyclictest41-21ksoftirqd/319:23:433
18868993126,3cyclictest41-21ksoftirqd/300:24:443
18868993124,4cyclictest41-21ksoftirqd/320:50:583
1886899311,7cyclictest4947-21apt-get20:55:113
1886899311,2cyclictest121rcu_preempt19:27:223
18867993125,4cyclictest33-21ksoftirqd/222:00:022
18866993126,3cyclictest25-21ksoftirqd/121:38:521
18866993126,3cyclictest25-21ksoftirqd/119:47:061
18866993125,4cyclictest25-21ksoftirqd/122:19:521
18866993125,4cyclictest25-21ksoftirqd/120:40:101
18866993125,4cyclictest25-21ksoftirqd/119:24:441
18866993125,3cyclictest25-21ksoftirqd/123:35:401
18866993112,16cyclictest21891-21cpuspeed21:30:131
18866993112,16cyclictest14395-21seq21:14:591
18868993025,3cyclictest41-21ksoftirqd/300:25:093
18867993024,4cyclictest33-21ksoftirqd/221:01:462
18866993024,4cyclictest25-21ksoftirqd/122:29:091
18866993023,4cyclictest25-21ksoftirqd/122:46:581
1886899292,6cyclictest18091-21apt-get20:15:123
18867992924,3cyclictest33-21ksoftirqd/221:19:542
18867992922,5cyclictest33-21ksoftirqd/200:03:242
18867992915,13cyclictest33-21ksoftirqd/222:17:092
1886799291,4cyclictest33-21ksoftirqd/220:39:012
18866992924,3cyclictest25-21ksoftirqd/123:25:261
18866992924,3cyclictest25-21ksoftirqd/121:21:371
18866992923,4cyclictest25-21ksoftirqd/123:06:441
139291290,0ptp4l401ktimersoftd/322:30:243
18868992822,4cyclictest41-21ksoftirqd/321:46:433
18867992823,3cyclictest33-21ksoftirqd/223:12:582
18867992822,4cyclictest33-21ksoftirqd/220:02:482
18866992823,3cyclictest25-21ksoftirqd/123:21:531
18866992823,3cyclictest25-21ksoftirqd/122:30:371
18866992822,4cyclictest25-21ksoftirqd/121:57:361
18866992822,4cyclictest25-21ksoftirqd/119:35:311
18866992822,4cyclictest25-21ksoftirqd/119:35:311
18866992812,14cyclictest19980-21hwlatdetect21:25:171
18867992722,3cyclictest33-21ksoftirqd/220:15:072
1886699276,19cyclictest28885-21missed_timers20:35:201
18868992621,3cyclictest41-21ksoftirqd/319:38:093
18868992621,3cyclictest41-21ksoftirqd/319:38:093
18867992621,3cyclictest33-21ksoftirqd/221:31:542
1886699266,17cyclictest16029-21ptp4l-jitter21:15:231
1886699261,22cyclictest8474-21tr19:55:121
18867992520,3cyclictest33-21ksoftirqd/222:46:412
1886799238,5cyclictest33-21ksoftirqd/222:11:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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