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2026-04-25 - 18:54
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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 Sat Apr 25, 2026 12:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491206172,23phc2sys0-21swapper/307:05:083
229932205172,22sleep20-21swapper/207:07:052
232032201168,22sleep00-21swapper/007:09:480
231772200167,22sleep10-21swapper/107:09:281
1581021540,5sleep32351799cyclictest08:00:163
38021470,4sleep12351599cyclictest11:55:271
179021360,4sleep02351499cyclictest12:00:140
108592650,7sleep32351799cyclictest08:55:233
23515996326,10cyclictest25-21ksoftirqd/111:50:201
23515996026,9cyclictest25-21ksoftirqd/109:25:001
98792590,2sleep20-21swapper/212:15:242
131072580,3sleep313103-21ls12:25:013
2351499544,11cyclictest1913-21grep09:45:180
306042530,2sleep10-21swapper/107:25:001
2351499531,17cyclictest15531-21/usr/sbin/munin10:15:240
2351599505,6cyclictest25-21ksoftirqd/108:35:201
2351599501,5cyclictest25-21ksoftirqd/110:15:131
2351599493,6cyclictest25-21ksoftirqd/112:30:121
23515994930,8cyclictest25-21ksoftirqd/111:25:001
2351599492,5cyclictest25-21ksoftirqd/111:05:151
2351599491,6cyclictest25-21ksoftirqd/108:55:281
2351499494,7cyclictest14737-21awk07:55:290
2351599486,5cyclictest25-21ksoftirqd/112:10:231
2351599485,8cyclictest25-21ksoftirqd/111:00:111
2351599485,10cyclictest25-21ksoftirqd/107:35:151
2351599484,8cyclictest25-21ksoftirqd/109:30:151
2351599484,4cyclictest25-21ksoftirqd/109:15:191
23515994828,11cyclictest25-21ksoftirqd/107:50:171
23515994824,10cyclictest25-21ksoftirqd/107:45:281
2351499488,2cyclictest9-21ksoftirqd/011:10:100
2351499488,2cyclictest9-21ksoftirqd/009:27:570
2351599476,5cyclictest25-21ksoftirqd/112:35:201
2351599475,8cyclictest25-21ksoftirqd/109:35:241
2351599474,9cyclictest25-21ksoftirqd/110:30:161
2351599474,8cyclictest25-21ksoftirqd/110:05:161
2351599473,8cyclictest25-21ksoftirqd/109:50:191
2351599473,6cyclictest25-21ksoftirqd/110:40:141
23515994727,10cyclictest25-21ksoftirqd/112:15:181
2351599472,5cyclictest25-21ksoftirqd/112:00:131
2351499479,6cyclictest9-21ksoftirqd/010:47:030
2351499479,2cyclictest9-21ksoftirqd/011:07:180
2351499475,5cyclictest9-21ksoftirqd/012:39:390
2351499474,6cyclictest25930-21if_enp4s008:20:190
2351599464,9cyclictest25-21ksoftirqd/107:15:251
2351599463,7cyclictest25-21ksoftirqd/107:55:221
23515994632,4cyclictest25-21ksoftirqd/111:15:141
23515994628,7cyclictest25-21ksoftirqd/107:30:181
23515994628,7cyclictest25-21ksoftirqd/107:30:181
2351599462,5cyclictest25-21ksoftirqd/110:15:001
2351599462,5cyclictest25-21ksoftirqd/108:05:161
23515994611,6cyclictest25-21ksoftirqd/109:03:391
23515994611,6cyclictest25-21ksoftirqd/109:03:391
2351499467,3cyclictest9-21ksoftirqd/011:41:150
2351499465,5cyclictest9-21ksoftirqd/008:00:180
2351499464,5cyclictest32514-21/usr/sbin/munin11:55:220
2351499462,7cyclictest30242-21mailstats11:50:250
2351599456,5cyclictest25-21ksoftirqd/108:12:331
2351599454,4cyclictest25-21ksoftirqd/109:40:171
2351599452,6cyclictest25-21ksoftirqd/110:00:011
2351599452,6cyclictest25-21ksoftirqd/109:10:181
2351599451,5cyclictest25-21ksoftirqd/111:35:141
2351599451,5cyclictest25-21ksoftirqd/111:10:141
2351599450,5cyclictest25-21ksoftirqd/110:45:121
2351599450,5cyclictest25-21ksoftirqd/109:24:591
2351499457,3cyclictest9-21ksoftirqd/012:26:240
2351499457,2cyclictest9-21ksoftirqd/007:48:190
2351499456,5cyclictest9-21ksoftirqd/010:25:510
2351499456,5cyclictest9-21ksoftirqd/007:31:240
2351499456,5cyclictest9-21ksoftirqd/007:31:240
2351499453,7cyclictest28602-21/usr/sbin/munin07:20:140
2351499450,11cyclictest7055-21grep07:40:220
23517994439,3cyclictest4370-21ls11:00:003
23516994417,2cyclictest33-21ksoftirqd/208:00:252
2351599446,5cyclictest25-21ksoftirqd/112:25:171
2351599443,6cyclictest25-21ksoftirqd/108:25:231
2351599443,6cyclictest25-21ksoftirqd/108:05:011
2351599443,6cyclictest25-21ksoftirqd/107:40:151
2351599443,5cyclictest25-21ksoftirqd/109:45:251
2351599442,5cyclictest25-21ksoftirqd/108:45:261
2351599441,6cyclictest25-21ksoftirqd/110:55:161
2351499448,2cyclictest9-21ksoftirqd/010:22:240
2351499447,4cyclictest9-21ksoftirqd/007:27:560
2351499447,3cyclictest9-21ksoftirqd/009:36:420
2351499445,5cyclictest9-21ksoftirqd/009:13:580
2351499443,5cyclictest9-21ksoftirqd/009:33:480
139391440,0ptp4l401ktimersoftd/308:30:223
23517994336,4cyclictest26232-21cron09:30:003
2351599433,6cyclictest25-21ksoftirqd/110:20:201
2351599432,5cyclictest25-21ksoftirqd/110:03:441
2351599432,5cyclictest25-21ksoftirqd/108:20:371
2351599432,5cyclictest25-21ksoftirqd/107:25:251
2351599432,5cyclictest25166-21gpgv08:20:011
2351599431,5cyclictest25-21ksoftirqd/110:50:151
2351499439,2cyclictest9-21ksoftirqd/008:30:030
2351499438,7cyclictest9-21ksoftirqd/011:47:570
2351499438,3cyclictest9-21ksoftirqd/011:38:550
2351499437,5cyclictest9-21ksoftirqd/009:40:240
2351499436,5cyclictest9-21ksoftirqd/012:14:330
2351499436,3cyclictest9-21ksoftirqd/011:31:450
2351499435,5cyclictest9-21ksoftirqd/012:19:520
2351499435,4cyclictest9-21ksoftirqd/010:14:340
2351499432,6cyclictest101ktimersoftd/009:20:010
2351499432,5cyclictest9-21ksoftirqd/009:55:220
23517994213,27cyclictest3050-21kworker/3:108:26:343
2351599423,4cyclictest25-21ksoftirqd/112:20:561
2351499427,5cyclictest9-21ksoftirqd/011:15:250
2351499427,2cyclictest9-21ksoftirqd/010:58:540
2351499426,5cyclictest9-21ksoftirqd/007:15:220
2351499426,5cyclictest9-21ksoftirqd/007:10:310
2351499425,5cyclictest9-21ksoftirqd/011:21:100
2351499424,2cyclictest121rcu_preempt08:46:590
2351499421,5cyclictest0-21swapper/008:50:200
2351499420,2cyclictest121rcu_preempt08:05:150
139391420,0ptp4l401ktimersoftd/307:29:243
23516994136,3cyclictest33-21ksoftirqd/209:00:012
23516994135,3cyclictest33-21ksoftirqd/211:35:012
23516994131,8cyclictest33-21ksoftirqd/212:30:242
2351599412,6cyclictest25-21ksoftirqd/110:30:011
2351599411,6cyclictest25-21ksoftirqd/110:35:211
2351599411,6cyclictest25-21ksoftirqd/108:30:201
2351499414,8cyclictest9-21ksoftirqd/011:25:020
139391410,1ptp4l401ktimersoftd/310:50:163
139391410,0ptp4l401ktimersoftd/312:32:073
139391410,0ptp4l401ktimersoftd/311:50:163
23516994034,4cyclictest33-21ksoftirqd/209:10:002
23516994034,3cyclictest33-21ksoftirqd/208:25:002
23516994027,5cyclictest33-21ksoftirqd/210:40:142
23516994025,4cyclictest33-21ksoftirqd/212:05:232
2351599402,5cyclictest25-21ksoftirqd/111:45:241
2351599402,5cyclictest25-21ksoftirqd/111:40:221
2351599402,5cyclictest25-21ksoftirqd/109:05:231
2351599402,5cyclictest25-21ksoftirqd/108:40:201
2351599401,5cyclictest25-21ksoftirqd/111:30:251
2351599400,7cyclictest25-21ksoftirqd/108:50:221
2351499406,4cyclictest9-21ksoftirqd/008:13:460
2351499404,6cyclictest9-21ksoftirqd/011:00:220
2351499402,5cyclictest9-21ksoftirqd/012:35:000
2351499400,2cyclictest121rcu_preempt12:20:160
2351499400,1cyclictest121rcu_preempt12:05:140
23516993934,3cyclictest33-21ksoftirqd/208:20:002
23516993934,3cyclictest33-21ksoftirqd/208:10:002
2351599393,6cyclictest25-21ksoftirqd/111:25:221
2351499396,5cyclictest9-21ksoftirqd/008:18:580
2351499394,5cyclictest9-21ksoftirqd/010:00:300
2351499391,6cyclictest9-21ksoftirqd/010:30:240
2351499390,1cyclictest121rcu_preempt08:35:200
23517993833,3cyclictest41-21ksoftirqd/307:54:593
23517993831,4cyclictest41-21ksoftirqd/310:38:583
23516993834,2cyclictest33-21ksoftirqd/210:20:002
23516993833,3cyclictest33-21ksoftirqd/209:50:222
23516993833,3cyclictest33-21ksoftirqd/209:40:002
23516993833,2cyclictest33-21ksoftirqd/211:00:002
23516993833,2cyclictest33-21ksoftirqd/207:15:182
23516993832,3cyclictest33-21ksoftirqd/209:25:192
23516993831,4cyclictest33-21ksoftirqd/208:53:592
2351499385,2cyclictest9-21ksoftirqd/008:42:070
2351499382,7cyclictest9-21ksoftirqd/008:55:190
57898370,3rtkit-daemon15923-21df_inode10:15:153
23517993732,3cyclictest41-21ksoftirqd/307:20:003
23517993731,4cyclictest41-21ksoftirqd/311:27:313
23517993730,4cyclictest41-21ksoftirqd/311:43:363
23517993730,4cyclictest41-21ksoftirqd/309:55:383
2351799371,33cyclictest5001-21grep07:35:283
23516993733,2cyclictest33-21ksoftirqd/212:25:192
2351699373,2cyclictest33-21ksoftirqd/210:00:132
23516993732,3cyclictest33-21ksoftirqd/211:40:012
23516993732,3cyclictest33-21ksoftirqd/211:10:012
23516993732,2cyclictest33-21ksoftirqd/211:25:142
23516993732,2cyclictest33-21ksoftirqd/209:25:012
23516993732,2cyclictest33-21ksoftirqd/208:45:012
23516993731,3cyclictest33-21ksoftirqd/211:00:282
23516993731,3cyclictest33-21ksoftirqd/210:30:202
23516993731,3cyclictest33-21ksoftirqd/207:40:012
2351599378,26cyclictest0-21swapper/112:05:231
2351599370,6cyclictest25-21ksoftirqd/107:10:371
2351499372,8cyclictest9-21ksoftirqd/010:38:090
2351499372,5cyclictest11320-21sh10:05:150
2351499370,2cyclictest121rcu_preempt09:20:150
23517993630,4cyclictest41-21ksoftirqd/309:36:553
23517993630,4cyclictest28529-21cron11:50:003
23517993629,4cyclictest41-21ksoftirqd/310:48:593
23516993632,3cyclictest33-21ksoftirqd/212:00:002
23516993631,3cyclictest33-21ksoftirqd/211:45:202
23516993631,3cyclictest33-21ksoftirqd/210:20:182
23516993631,3cyclictest33-21ksoftirqd/207:30:192
23516993631,3cyclictest33-21ksoftirqd/207:30:192
23516993631,3cyclictest33-21ksoftirqd/207:25:192
23516993631,3cyclictest33-21ksoftirqd/207:20:192
23516993630,4cyclictest33-21ksoftirqd/210:36:372
23516993630,3cyclictest33-21ksoftirqd/212:25:002
23516993630,3cyclictest33-21ksoftirqd/211:55:002
23516993630,3cyclictest33-21ksoftirqd/208:45:282
23516993629,4cyclictest33-21ksoftirqd/207:58:392
2351699362,3cyclictest33-21ksoftirqd/211:40:232
2351699361,6cyclictest33-21ksoftirqd/211:15:282
23517993530,3cyclictest41-21ksoftirqd/311:20:133
23517993529,4cyclictest41-21ksoftirqd/310:11:543
23517993511,3cyclictest12016-21cat11:15:153
2351699359,7cyclictest33-21ksoftirqd/210:25:162
23516993530,3cyclictest33-21ksoftirqd/209:45:012
23516993530,3cyclictest33-21ksoftirqd/208:25:192
23516993530,3cyclictest33-21ksoftirqd/207:50:002
23516993530,3cyclictest33-21ksoftirqd/207:10:412
23516993529,3cyclictest33-21ksoftirqd/212:15:002
23516993529,3cyclictest33-21ksoftirqd/210:50:132
23516993529,3cyclictest33-21ksoftirqd/207:45:002
2351699350,2cyclictest33-21ksoftirqd/210:45:172
2351499353,7cyclictest9-21ksoftirqd/007:35:090
23514993529,3cyclictest9-21ksoftirqd/010:54:590
2351499351,5cyclictest9-21ksoftirqd/008:25:120
23517993428,4cyclictest41-21ksoftirqd/312:26:493
23517993428,4cyclictest41-21ksoftirqd/312:01:573
23517993428,4cyclictest41-21ksoftirqd/309:12:043
23517993428,4cyclictest41-21ksoftirqd/308:51:463
23517993428,4cyclictest41-21ksoftirqd/308:17:323
23517993428,4cyclictest41-21ksoftirqd/308:11:003
23517993428,4cyclictest41-21ksoftirqd/307:49:413
23517993412,3cyclictest3275-21cat07:35:013
23517993412,3cyclictest3275-21cat07:35:003
23516993430,2cyclictest33-21ksoftirqd/211:25:012
23516993429,3cyclictest33-21ksoftirqd/212:00:182
23516993429,3cyclictest33-21ksoftirqd/210:10:192
23516993429,3cyclictest33-21ksoftirqd/209:45:132
23516993429,3cyclictest33-21ksoftirqd/209:30:142
23516993428,3cyclictest33-21ksoftirqd/209:20:012
23516993428,3cyclictest33-21ksoftirqd/209:00:142
23516993428,3cyclictest33-21ksoftirqd/209:00:142
23516993415,3cyclictest33-21ksoftirqd/208:30:242
2351499342,5cyclictest9-21ksoftirqd/010:44:090
23517993328,3cyclictest41-21ksoftirqd/311:04:103
23517993327,4cyclictest41-21ksoftirqd/311:55:323
23517993327,4cyclictest41-21ksoftirqd/310:06:203
23516993329,3cyclictest33-21ksoftirqd/208:35:122
23516993329,2cyclictest33-21ksoftirqd/209:55:142
23516993328,3cyclictest33-21ksoftirqd/211:15:012
23516993328,3cyclictest33-21ksoftirqd/207:53:432
23516993328,2cyclictest33-21ksoftirqd/212:35:182
23516993327,4cyclictest33-21ksoftirqd/209:12:562
23516993327,3cyclictest33-21ksoftirqd/208:15:002
23516993315,3cyclictest33-21ksoftirqd/210:05:192
2351499333,2cyclictest121rcu_preempt09:00:150
2351499333,2cyclictest121rcu_preempt09:00:140
2351499332,6cyclictest14409-21apt-get09:05:120
23517993227,3cyclictest41-21ksoftirqd/311:36:333
23517993227,3cyclictest41-21ksoftirqd/311:07:073
23517993227,3cyclictest41-21ksoftirqd/309:44:163
23517993226,4cyclictest41-21ksoftirqd/311:34:243
23517993226,4cyclictest41-21ksoftirqd/310:04:233
23517993226,4cyclictest41-21ksoftirqd/307:24:023
23517993225,5cyclictest41-21ksoftirqd/307:45:013
2351499320,1cyclictest121rcu_preempt09:50:240
23517993126,3cyclictest41-21ksoftirqd/310:25:053
23517993126,3cyclictest41-21ksoftirqd/309:24:243
23517993126,3cyclictest41-21ksoftirqd/309:18:453
23517993125,4cyclictest41-21ksoftirqd/308:36:113
23517993113,2cyclictest8554-21/usr/sbin/munin12:15:193
23517993112,3cyclictest23540-21/usr/sbin/munin07:10:333
2351499315,5cyclictest9-21ksoftirqd/007:50:030
23517993026,3cyclictest41-21ksoftirqd/308:43:593
23517993025,3cyclictest41-21ksoftirqd/312:09:243
23517993025,3cyclictest41-21ksoftirqd/310:33:393
23517993025,3cyclictest41-21ksoftirqd/309:53:583
23517993024,4cyclictest41-21ksoftirqd/312:10:123
23517993024,4cyclictest41-21ksoftirqd/309:30:463
23517993010,3cyclictest5381-21cut08:45:163
23517992925,2cyclictest41-21ksoftirqd/311:14:283
23517992924,3cyclictest41-21ksoftirqd/309:45:163
23517992924,3cyclictest41-21ksoftirqd/309:07:413
23517992823,3cyclictest41-21ksoftirqd/310:22:353
23517992823,3cyclictest41-21ksoftirqd/308:07:403
23517992722,3cyclictest41-21ksoftirqd/308:21:523
23517992722,3cyclictest41-21ksoftirqd/307:57:363
23517992621,3cyclictest41-21ksoftirqd/309:00:393
23517992621,3cyclictest41-21ksoftirqd/309:00:393
23517992620,4cyclictest41-21ksoftirqd/312:37:083
23517992419,3cyclictest41-21ksoftirqd/310:40:123
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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