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2026-04-30 - 18:58
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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 rackdslot4.osadl.org (updated Thu Apr 30, 2026 12:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591223162,49phc2sys0-21swapper/307:07:313
179262208147,50sleep10-21swapper/107:05:261
182302201167,22sleep00-21swapper/007:09:220
181652200168,21sleep20-21swapper/207:08:322
3167921680,5sleep31858399cyclictest10:50:163
18580996911,16cyclictest654-21polkitd10:09:070
138491690,1ptp4l14912-21tune2fs09:15:153
18582996828,6cyclictest33-21ksoftirqd/210:09:222
49452650,2sleep10-21swapper/111:00:251
1858099659,12cyclictest16667-21cut08:10:150
1858099659,11cyclictest2586-21threads10:55:260
1385916346,9phc2sys0-21swapper/307:10:013
18582996226,6cyclictest33-21ksoftirqd/207:55:232
18582996223,7cyclictest33-21ksoftirqd/210:30:192
1858099629,11cyclictest25037-21awk11:40:240
1858099625,17cyclictest0-21swapper/011:20:180
18582996128,7cyclictest33-21ksoftirqd/211:25:132
18582996127,6cyclictest33-21ksoftirqd/207:15:122
18582996031,3cyclictest33-21ksoftirqd/211:35:242
18582996028,6cyclictest33-21ksoftirqd/211:10:162
18582996026,5cyclictest33-21ksoftirqd/210:55:132
18582996025,5cyclictest33-21ksoftirqd/207:25:012
18582996024,6cyclictest33-21ksoftirqd/208:40:122
1858099608,12cyclictest15912-21date08:10:010
1858099607,11cyclictest24710-21cut10:35:220
1858099607,11cyclictest24710-21cut10:35:210
1858099606,15cyclictest0-21swapper/010:30:170
1858099605,16cyclictest0-21swapper/011:10:170
158142600,6sleep31858399cyclictest10:20:113
18582995928,6cyclictest33-21ksoftirqd/212:30:202
18582995928,5cyclictest33-21ksoftirqd/211:30:182
18582995927,4cyclictest33-21ksoftirqd/212:15:102
18582995925,9cyclictest33-21ksoftirqd/208:30:182
18582995924,5cyclictest33-21ksoftirqd/209:45:182
18582995922,5cyclictest33-21ksoftirqd/207:45:162
1858099599,17cyclictest8421-21grep12:15:100
1858099599,15cyclictest2738-21systemctl07:40:240
1858099598,11cyclictest4156-21sed10:00:000
1858099597,11cyclictest518-21cut09:50:220
1858099597,11cyclictest1910-21kernelversion12:00:190
1858099597,10cyclictest6381-21cstates07:50:120
1858099597,10cyclictest21498-21df_abs07:15:140
18582995829,4cyclictest33-21ksoftirqd/211:20:112
18582995823,8cyclictest33-21ksoftirqd/207:25:122
1858099587,11cyclictest27877-21missed_timers09:40:220
252892570,2sleep20-21swapper/210:35:432
252892570,2sleep20-21swapper/210:35:422
18582995727,4cyclictest33-21ksoftirqd/210:20:112
18582995723,5cyclictest33-21ksoftirqd/209:40:252
18582995722,6cyclictest33-21ksoftirqd/212:20:212
1858099577,11cyclictest11770-21irqrtprio12:20:170
1858099575,17cyclictest0-21swapper/008:45:190
1858099575,16cyclictest0-21swapper/011:25:200
1858099574,16cyclictest14326-21date09:15:010
166432570,2sleep30-21swapper/312:30:183
18582995628,4cyclictest33-21ksoftirqd/207:40:212
18582995626,9cyclictest33-21ksoftirqd/212:25:232
18582995625,6cyclictest33-21ksoftirqd/209:55:182
18582995625,5cyclictest33-21ksoftirqd/210:55:002
18582995624,5cyclictest33-21ksoftirqd/210:10:162
18582995623,5cyclictest33-21ksoftirqd/211:15:152
18582995623,3cyclictest33-21ksoftirqd/208:55:162
18582995622,5cyclictest33-21ksoftirqd/208:05:132
18582995618,7cyclictest33-21ksoftirqd/207:50:162
1858099567,11cyclictest7893-21missed_timers09:00:210
187462550,2sleep30-21swapper/309:20:303
18582995529,7cyclictest33-21ksoftirqd/208:00:162
18582995525,9cyclictest33-21ksoftirqd/211:50:132
18582995524,6cyclictest33-21ksoftirqd/212:35:152
18582995522,5cyclictest33-21ksoftirqd/209:15:122
18582995520,5cyclictest33-21ksoftirqd/208:15:162
1858099557,17cyclictest4898-21grep12:05:230
18582995429,7cyclictest33-21ksoftirqd/210:40:252
18582995419,3cyclictest33-21ksoftirqd/212:10:132
1858099548,7cyclictest14756-21python12:25:250
1858099544,16cyclictest0-21swapper/010:15:210
138491540,1ptp4l401ktimersoftd/308:24:033
50798530,40rtkit-daemon0-21swapper/107:10:011
18582995327,7cyclictest33-21ksoftirqd/208:25:242
18582995322,5cyclictest33-21ksoftirqd/209:50:152
18582995321,5cyclictest33-21ksoftirqd/209:05:252
18582995321,5cyclictest33-21ksoftirqd/208:20:262
18582995320,5cyclictest33-21ksoftirqd/212:05:002
18582995223,9cyclictest33-21ksoftirqd/209:40:002
18582995220,5cyclictest33-21ksoftirqd/209:20:232
197902510,3sleep20-21swapper/209:25:152
18582995118,4cyclictest33-21ksoftirqd/209:15:012
1858099517,13cyclictest6323-21df_inode12:10:150
1858099516,7cyclictest5477-21ls08:55:180
18582995024,7cyclictest33-21ksoftirqd/207:30:262
18582995022,10cyclictest33-21ksoftirqd/208:52:582
18582995013,5cyclictest33-21ksoftirqd/211:40:252
18582995012,8cyclictest33-21ksoftirqd/208:36:282
1858099507,11cyclictest19251-21/usr/sbin/munin11:30:170
1858099506,7cyclictest15762-21apt-get12:30:110
1858299493,7cyclictest33-21ksoftirqd/210:45:192
1858299492,6cyclictest33-21ksoftirqd/211:01:482
1858299492,4cyclictest33-21ksoftirqd/209:30:152
1858299492,2cyclictest121rcu_preempt08:45:192
1858099497,8cyclictest21119-21apt-config08:20:000
1858099497,14cyclictest5047-21ps07:45:220
1858099496,7cyclictest31120-21apt-get08:40:100
1858099495,7cyclictest5958-21apt-get11:05:120
1858099495,7cyclictest5958-21apt-get11:05:120
1858299485,3cyclictest33-21ksoftirqd/208:10:242
1858299483,8cyclictest33-21ksoftirqd/207:40:002
18582994820,6cyclictest33-21ksoftirqd/209:00:192
1858099489,8cyclictest24275-21ps07:20:180
1858099487,8cyclictest11861-21irqstats11:15:180
1858099487,14cyclictest23325-21swap09:30:270
1858299476,2cyclictest33-21ksoftirqd/210:00:232
1858299474,7cyclictest33-21ksoftirqd/211:45:182
1858299474,5cyclictest33-21ksoftirqd/207:10:102
1858299474,10cyclictest33-21ksoftirqd/212:05:132
1858299473,3cyclictest33-21ksoftirqd/210:25:132
1858299472,5cyclictest33-21ksoftirqd/210:20:012
18582994721,8cyclictest33-21ksoftirqd/211:55:132
1858099478,7cyclictest31865-21irqstats10:50:170
1858099477,7cyclictest29559-21meminfo07:30:200
1858299464,5cyclictest33-21ksoftirqd/211:05:212
1858299464,5cyclictest33-21ksoftirqd/211:05:212
1858099468,7cyclictest26262-21df10:40:130
1858399450,43cyclictest6435-21kworker/3:010:09:413
18581994540,3cyclictest5629-21idleruntime-cro12:10:001
1858099457,8cyclictest11567-21diskstats08:00:150
1858099457,7cyclictest12368-21ls10:10:280
1858099448,7cyclictest9201-21perl07:55:140
1858099448,7cyclictest26863-21iostat_ios08:30:180
1858099446,6cyclictest4601-21meminfo11:00:200
1858099445,7cyclictest5908-21ls10:00:280
138491440,1ptp4l401ktimersoftd/308:36:283
138491440,0ptp4l401ktimersoftd/307:59:163
1858099437,8cyclictest18527-21apt08:15:100
1858099437,7cyclictest18689-21diskstats12:35:140
1858099436,7cyclictest17268-21df09:20:170
138491430,0ptp4l401ktimersoftd/310:35:063
138491430,0ptp4l401ktimersoftd/310:35:063
1858099427,7cyclictest29698-21meminfo08:35:200
138491420,0ptp4l401ktimersoftd/309:56:503
18583994035,3cyclictest41-21ksoftirqd/308:15:003
18583994034,3cyclictest41-21ksoftirqd/309:40:003
1858099406,7cyclictest24045-21df08:25:140
138491400,0ptp4l401ktimersoftd/311:55:123
18583993934,3cyclictest41-21ksoftirqd/310:44:063
1858099399,18cyclictest19219-21cat10:25:210
138491390,1ptp4l401ktimersoftd/307:49:543
138491390,0ptp4l401ktimersoftd/309:49:563
50798380,2rtkit-daemon0-21swapper/107:24:551
18583993833,3cyclictest41-21ksoftirqd/312:25:263
18583993831,5cyclictest41-21ksoftirqd/311:09:483
18583993831,5cyclictest41-21ksoftirqd/311:09:483
18581993832,4cyclictest25-21ksoftirqd/107:53:391
18583993730,5cyclictest41-21ksoftirqd/309:51:433
18581993731,4cyclictest25-21ksoftirqd/107:42:081
18581993730,4cyclictest25-21ksoftirqd/110:51:041
50798360,2rtkit-daemon0-21swapper/108:52:001
50798360,2rtkit-daemon0-21swapper/107:16:551
18583993631,3cyclictest41-21ksoftirqd/312:10:253
18583993631,3cyclictest41-21ksoftirqd/310:20:013
18583993630,3cyclictest41-21ksoftirqd/307:50:123
18581993630,4cyclictest25-21ksoftirqd/110:37:511
18581993630,4cyclictest25-21ksoftirqd/110:37:511
18581993630,4cyclictest25-21ksoftirqd/109:55:101
18581993629,4cyclictest25-21ksoftirqd/111:35:471
18580993610,11cyclictest20011-21ptp4l-jitter07:10:190
138491360,0ptp4l401ktimersoftd/307:35:243
50798350,2rtkit-daemon0-21swapper/108:05:461
50798350,2rtkit-daemon0-21swapper/011:52:400
18583993530,3cyclictest41-21ksoftirqd/311:45:003
18583993530,3cyclictest41-21ksoftirqd/311:20:013
18583993530,3cyclictest41-21ksoftirqd/308:55:003
18583993530,3cyclictest41-21ksoftirqd/307:40:193
18583993530,3cyclictest41-21ksoftirqd/307:15:173
18583993529,4cyclictest41-21ksoftirqd/311:53:433
18583993529,4cyclictest41-21ksoftirqd/308:15:073
18581993529,4cyclictest25-21ksoftirqd/112:35:571
18581993529,4cyclictest25-21ksoftirqd/112:11:381
18581993529,4cyclictest25-21ksoftirqd/111:24:591
1858099354,9cyclictest0-21swapper/011:45:160
18580993529,4cyclictest9-21ksoftirqd/009:27:090
18580993529,4cyclictest9-21ksoftirqd/008:51:110
18583993430,2cyclictest41-21ksoftirqd/310:57:133
18583993429,3cyclictest41-21ksoftirqd/310:30:003
18583993429,3cyclictest41-21ksoftirqd/309:10:173
18583993429,3cyclictest41-21ksoftirqd/309:00:003
18583993428,4cyclictest41-21ksoftirqd/310:04:113
1858399342,4cyclictest41-21ksoftirqd/309:10:003
18581993428,4cyclictest25-21ksoftirqd/112:20:051
18581993428,4cyclictest25-21ksoftirqd/110:27:161
18581993428,4cyclictest25-21ksoftirqd/107:48:581
18581993427,5cyclictest25-21ksoftirqd/111:30:571
18581993427,4cyclictest25-21ksoftirqd/110:02:241
18583993328,3cyclictest41-21ksoftirqd/312:35:243
18583993328,3cyclictest41-21ksoftirqd/309:43:503
18583993327,4cyclictest41-21ksoftirqd/311:32:363
18583993327,3cyclictest41-21ksoftirqd/311:36:583
18581993328,3cyclictest25-21ksoftirqd/107:31:261
18581993327,4cyclictest25-21ksoftirqd/110:07:181
18581993327,4cyclictest25-21ksoftirqd/109:52:141
18581993327,4cyclictest25-21ksoftirqd/108:37:551
18581993327,4cyclictest25-21ksoftirqd/108:26:471
1858099337,16cyclictest22567-21awk11:35:260
18580993327,4cyclictest9-21ksoftirqd/010:24:260
18580993327,4cyclictest9-21ksoftirqd/007:26:020
18580993326,5cyclictest9-21ksoftirqd/009:05:390
18583993226,4cyclictest41-21ksoftirqd/308:46:573
18583993226,4cyclictest41-21ksoftirqd/308:41:113
18583993225,5cyclictest41-21ksoftirqd/309:34:023
18581993227,3cyclictest25-21ksoftirqd/109:21:361
18581993226,4cyclictest25-21ksoftirqd/111:43:171
18581993226,4cyclictest25-21ksoftirqd/111:12:371
18581993226,4cyclictest25-21ksoftirqd/110:24:261
18581993226,4cyclictest25-21ksoftirqd/110:10:471
18581993226,4cyclictest25-21ksoftirqd/108:11:321
18581993225,5cyclictest25-21ksoftirqd/109:40:101
18581993224,5cyclictest25-21ksoftirqd/109:30:081
18580993226,4cyclictest9-21ksoftirqd/009:19:140
18580993210,7cyclictest31396-21perl11:55:150
1606823227,2sleep341-21ksoftirqd/311:25:113
50798310,2rtkit-daemon0-21swapper/111:06:201
50798310,2rtkit-daemon0-21swapper/111:06:201
18583993127,3cyclictest41-21ksoftirqd/310:30:123
18583993127,3cyclictest41-21ksoftirqd/307:25:193
18583993126,3cyclictest41-21ksoftirqd/312:15:103
18583993126,3cyclictest41-21ksoftirqd/311:11:073
18583993126,3cyclictest41-21ksoftirqd/309:00:183
18583993125,4cyclictest41-21ksoftirqd/308:06:053
18583993125,4cyclictest41-21ksoftirqd/308:01:433
18581993126,3cyclictest25-21ksoftirqd/112:28:071
18581993126,3cyclictest25-21ksoftirqd/110:44:061
18581993126,3cyclictest25-21ksoftirqd/109:16:301
18581993126,3cyclictest25-21ksoftirqd/108:42:321
18581993125,4cyclictest25-21ksoftirqd/110:49:571
18581993125,4cyclictest25-21ksoftirqd/109:28:431
18581993125,4cyclictest25-21ksoftirqd/108:46:471
18581993125,4cyclictest25-21ksoftirqd/107:55:561
18581993125,4cyclictest25-21ksoftirqd/107:25:551
1858099317,7cyclictest30915-21apt-get07:35:110
18580993125,4cyclictest9-21ksoftirqd/009:37:200
138491310,0ptp4l401ktimersoftd/308:31:013
50798300,2rtkit-daemon0-21swapper/108:01:061
18583993025,3cyclictest41-21ksoftirqd/312:23:153
18583993025,3cyclictest41-21ksoftirqd/310:12:513
18583993025,3cyclictest41-21ksoftirqd/309:26:123
18581993025,3cyclictest25-21ksoftirqd/111:46:471
18581993025,3cyclictest25-21ksoftirqd/110:18:151
18581993025,3cyclictest25-21ksoftirqd/109:06:121
18581993025,3cyclictest25-21ksoftirqd/108:55:331
18581993024,4cyclictest25-21ksoftirqd/107:38:551
138491300,7ptp4l401ktimersoftd/311:49:473
18583992923,4cyclictest41-21ksoftirqd/311:02:283
18583992923,4cyclictest41-21ksoftirqd/307:30:113
18583992923,4cyclictest41-21ksoftirqd/307:24:003
18583992923,3cyclictest41-21ksoftirqd/310:45:183
18581992924,3cyclictest25-21ksoftirqd/108:21:541
18581992923,4cyclictest25-21ksoftirqd/112:19:241
18581992923,4cyclictest25-21ksoftirqd/111:52:371
18581992923,4cyclictest25-21ksoftirqd/111:25:321
18581992923,4cyclictest25-21ksoftirqd/109:36:131
18581992923,4cyclictest25-21ksoftirqd/109:02:181
50798280,2rtkit-daemon0-21swapper/111:58:311
18583992822,4cyclictest41-21ksoftirqd/308:29:403
18581992824,3cyclictest25-21ksoftirqd/108:30:261
18581992823,3cyclictest25-21ksoftirqd/111:19:561
18581992822,4cyclictest25-21ksoftirqd/112:30:591
18581992822,4cyclictest25-21ksoftirqd/110:31:331
18581992722,3cyclictest25-21ksoftirqd/109:47:431
138491270,7ptp4l401ktimersoftd/312:05:173
18581992620,4cyclictest25-21ksoftirqd/110:57:411
18583992520,3cyclictest41-21ksoftirqd/312:00:183
18583992520,3cyclictest41-21ksoftirqd/311:24:593
18581992521,3cyclictest25-21ksoftirqd/109:10:381
18581992520,3cyclictest25-21ksoftirqd/112:01:541
18580992520,3cyclictest9-21ksoftirqd/010:46:280
18581992419,3cyclictest25-21ksoftirqd/108:15:081
18580992418,4cyclictest9-21ksoftirqd/009:45:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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