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2026-04-24 - 18:28
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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 Apr 24, 2026 12:45:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1311823170,5sleep213116-21grep07:05:152
139591207174,22phc2sys0-21swapper/307:07:163
146852206171,23sleep10-21swapper/107:08:501
144342202169,22sleep00-21swapper/007:05:340
2801921340,7sleep11507599cyclictest08:45:001
1507699720,3cyclictest12590-21sed11:35:012
77582600,2sleep00-21swapper/008:00:220
279902580,2sleep00-21swapper/012:05:220
90512550,2sleep00-21swapper/009:10:230
1507699490,3cyclictest31524-21taskset07:44:552
15074994338,3cyclictest9-21ksoftirqd/009:00:000
15074994338,3cyclictest9-21ksoftirqd/009:00:000
15075994236,3cyclictest25-21ksoftirqd/109:20:001
139291420,0ptp4l401ktimersoftd/308:45:033
296812410,1sleep20-21swapper/208:45:262
15075994137,2cyclictest25-21ksoftirqd/110:05:001
139291410,0ptp4l401ktimersoftd/310:35:183
15075994037,2cyclictest25-21ksoftirqd/107:19:591
15075994035,3cyclictest25-21ksoftirqd/108:15:001
15074994034,3cyclictest9-21ksoftirqd/009:35:000
139291400,0ptp4l401ktimersoftd/311:31:523
139291400,0ptp4l401ktimersoftd/310:25:173
15077993934,3cyclictest41-21ksoftirqd/312:01:003
15077993933,4cyclictest41-21ksoftirqd/311:48:043
15077993933,4cyclictest41-21ksoftirqd/309:27:553
15076993932,5cyclictest33-21ksoftirqd/209:33:072
15075993934,3cyclictest25-21ksoftirqd/108:15:231
15074993934,3cyclictest9-21ksoftirqd/011:35:000
15074993931,6cyclictest9-21ksoftirqd/011:30:000
15075993834,2cyclictest25-21ksoftirqd/112:40:001
15075993834,2cyclictest25-21ksoftirqd/110:35:191
15075993834,2cyclictest25-21ksoftirqd/109:00:211
15075993834,2cyclictest25-21ksoftirqd/108:55:261
15075993834,2cyclictest25-21ksoftirqd/108:55:251
1507599383,3cyclictest121rcu_preempt09:55:131
15075993833,3cyclictest25-21ksoftirqd/109:35:161
15075993833,3cyclictest25-21ksoftirqd/108:20:171
15075993832,4cyclictest25-21ksoftirqd/110:52:171
15074993833,3cyclictest9-21ksoftirqd/010:50:000
41298370,2rtkit-daemon411-21rtkit-daemon10:07:351
15077993732,3cyclictest41-21ksoftirqd/308:40:573
15077993731,4cyclictest41-21ksoftirqd/311:16:593
15077993731,4cyclictest41-21ksoftirqd/310:45:293
15077993731,4cyclictest41-21ksoftirqd/310:41:203
15077993731,4cyclictest41-21ksoftirqd/309:32:323
15077993730,5cyclictest41-21ksoftirqd/312:12:543
15077993730,5cyclictest41-21ksoftirqd/311:00:463
15076993731,4cyclictest33-21ksoftirqd/212:24:332
1507699370,24cyclictest19357-21chrt07:17:042
1507599376,6cyclictest25-21ksoftirqd/112:30:001
1507599375,2cyclictest25-21ksoftirqd/112:05:261
15075993733,2cyclictest25-21ksoftirqd/111:15:001
15075993732,3cyclictest25-21ksoftirqd/111:40:011
15075993732,3cyclictest25-21ksoftirqd/109:30:011
15075993732,2cyclictest25-21ksoftirqd/109:45:151
15075993731,3cyclictest25-21ksoftirqd/108:05:191
1507599372,3cyclictest121rcu_preempt12:30:261
15074993733,2cyclictest9-21ksoftirqd/007:30:260
15074993733,2cyclictest9-21ksoftirqd/007:30:260
15074993732,3cyclictest9-21ksoftirqd/011:55:000
15074993732,3cyclictest9-21ksoftirqd/011:10:000
15074993732,3cyclictest9-21ksoftirqd/010:55:180
15074993731,4cyclictest9-21ksoftirqd/010:21:590
15074993731,4cyclictest9-21ksoftirqd/007:59:380
1507499371,5cyclictest121rcu_preempt09:45:220
15077993631,3cyclictest41-21ksoftirqd/307:15:113
15077993630,4cyclictest41-21ksoftirqd/311:12:133
15077993630,4cyclictest41-21ksoftirqd/310:10:033
15077993630,4cyclictest41-21ksoftirqd/309:49:573
15076993630,4cyclictest33-21ksoftirqd/211:49:552
15076993630,4cyclictest33-21ksoftirqd/211:10:442
15076993630,4cyclictest33-21ksoftirqd/210:45:322
15076993630,4cyclictest33-21ksoftirqd/208:19:512
15076993630,4cyclictest33-21ksoftirqd/208:04:332
15076993630,4cyclictest33-21ksoftirqd/207:57:592
15076993629,4cyclictest33-21ksoftirqd/211:25:592
1507699360,3cyclictest1308-21runrttasks12:09:202
15075993633,2cyclictest25-21ksoftirqd/108:50:241
15075993632,2cyclictest25-21ksoftirqd/107:59:591
15075993631,3cyclictest25-21ksoftirqd/111:25:131
15075993631,3cyclictest25-21ksoftirqd/111:00:001
15075993631,3cyclictest25-21ksoftirqd/110:45:181
15075993631,3cyclictest25-21ksoftirqd/110:40:131
15075993631,3cyclictest25-21ksoftirqd/109:15:001
15075993631,3cyclictest25-21ksoftirqd/108:05:011
15075993630,4cyclictest25-21ksoftirqd/112:14:371
15075993630,4cyclictest25-21ksoftirqd/110:19:001
15075993630,4cyclictest25-21ksoftirqd/108:28:311
15075993630,4cyclictest25-21ksoftirqd/107:38:591
15075993623,5cyclictest25-21ksoftirqd/110:30:001
1507599361,4cyclictest25-21ksoftirqd/111:15:131
1507599360,2cyclictest121rcu_preempt09:20:241
1507599360,2cyclictest121rcu_preempt07:25:241
15074993633,2cyclictest9-21ksoftirqd/010:00:000
15074993632,2cyclictest9-21ksoftirqd/007:50:000
15074993630,4cyclictest9-21ksoftirqd/008:50:050
15074993630,4cyclictest9-21ksoftirqd/008:20:040
15074993630,4cyclictest9-21ksoftirqd/007:50:560
15074993630,3cyclictest9-21ksoftirqd/010:30:250
15074993630,3cyclictest9-21ksoftirqd/008:30:170
1507499362,5cyclictest25836-21ptp4l-jitter12:00:210
15077993530,3cyclictest41-21ksoftirqd/309:20:103
15077993530,3cyclictest41-21ksoftirqd/308:57:233
15077993530,3cyclictest41-21ksoftirqd/308:57:233
15077993530,3cyclictest41-21ksoftirqd/308:30:113
15077993530,3cyclictest41-21ksoftirqd/307:57:383
15077993529,4cyclictest41-21ksoftirqd/309:42:513
15077993529,4cyclictest41-21ksoftirqd/308:04:353
1507799350,4cyclictest31857-21grep12:15:133
15076993531,3cyclictest33-21ksoftirqd/208:53:252
15076993530,3cyclictest33-21ksoftirqd/208:07:172
15076993529,4cyclictest33-21ksoftirqd/211:21:432
15076993529,4cyclictest33-21ksoftirqd/211:19:142
15076993529,4cyclictest33-21ksoftirqd/210:42:072
15076993529,4cyclictest33-21ksoftirqd/209:58:472
15076993529,4cyclictest33-21ksoftirqd/209:17:512
1507599355,3cyclictest25-21ksoftirqd/111:00:231
1507599354,3cyclictest121rcu_preempt11:40:251
15075993532,2cyclictest25-21ksoftirqd/111:45:201
15075993531,2cyclictest25-21ksoftirqd/110:30:231
15075993531,2cyclictest25-21ksoftirqd/109:50:181
15075993531,2cyclictest25-21ksoftirqd/109:40:121
15075993530,3cyclictest25-21ksoftirqd/112:18:011
15075993530,3cyclictest25-21ksoftirqd/111:30:131
15075993530,3cyclictest25-21ksoftirqd/109:05:191
15075993529,4cyclictest25-21ksoftirqd/111:20:181
15075993529,3cyclictest25-21ksoftirqd/109:25:241
15075993529,3cyclictest25-21ksoftirqd/107:50:121
1507599350,7cyclictest25-21ksoftirqd/108:35:181
15074993530,3cyclictest9-21ksoftirqd/012:10:270
15074993530,3cyclictest9-21ksoftirqd/011:58:280
15074993530,3cyclictest9-21ksoftirqd/010:40:180
15074993530,3cyclictest9-21ksoftirqd/010:15:000
15074993530,3cyclictest9-21ksoftirqd/008:45:000
15074993529,4cyclictest9-21ksoftirqd/012:34:010
15074993529,4cyclictest9-21ksoftirqd/010:07:190
15074993529,4cyclictest9-21ksoftirqd/009:53:230
15074993529,4cyclictest9-21ksoftirqd/008:25:050
15074993529,3cyclictest9-21ksoftirqd/009:05:190
15074993521,3cyclictest9-21ksoftirqd/008:35:180
1507499350,2cyclictest121rcu_preempt11:40:010
1507499350,2cyclictest121rcu_preempt08:50:010
15077993429,3cyclictest41-21ksoftirqd/312:07:203
15077993429,3cyclictest41-21ksoftirqd/309:10:003
15077993429,3cyclictest41-21ksoftirqd/308:29:233
15077993429,3cyclictest41-21ksoftirqd/308:19:113
15077993429,3cyclictest41-21ksoftirqd/307:31:363
15077993429,3cyclictest41-21ksoftirqd/307:31:363
15077993429,3cyclictest41-21ksoftirqd/307:14:533
15077993428,4cyclictest41-21ksoftirqd/311:59:313
15077993428,4cyclictest41-21ksoftirqd/310:18:413
15077993428,4cyclictest41-21ksoftirqd/310:03:053
15077993428,4cyclictest41-21ksoftirqd/309:19:323
15077993428,4cyclictest41-21ksoftirqd/308:37:483
15077993428,4cyclictest41-21ksoftirqd/308:09:163
15077993428,4cyclictest41-21ksoftirqd/307:43:043
15077993428,4cyclictest41-21ksoftirqd/307:36:063
15076993429,3cyclictest33-21ksoftirqd/211:07:472
15076993429,3cyclictest33-21ksoftirqd/210:58:242
15076993429,3cyclictest33-21ksoftirqd/210:32:022
15076993429,3cyclictest33-21ksoftirqd/210:25:062
15076993429,3cyclictest33-21ksoftirqd/208:12:172
15076993428,4cyclictest33-21ksoftirqd/211:36:352
15076993428,4cyclictest33-21ksoftirqd/210:39:112
15076993428,4cyclictest33-21ksoftirqd/210:14:312
15076993428,4cyclictest33-21ksoftirqd/210:00:102
15076993428,4cyclictest33-21ksoftirqd/209:39:492
15076993428,4cyclictest33-21ksoftirqd/209:26:492
15076993428,4cyclictest33-21ksoftirqd/209:13:142
15076993428,4cyclictest33-21ksoftirqd/209:08:282
15076993428,4cyclictest33-21ksoftirqd/207:48:182
15076993428,4cyclictest33-21ksoftirqd/207:26:302
1507699341,3cyclictest16833-21taskset11:41:032
1507599345,2cyclictest121rcu_preempt07:30:141
1507599345,2cyclictest121rcu_preempt07:30:131
15075993431,2cyclictest25-21ksoftirqd/107:10:181
15075993429,3cyclictest25-21ksoftirqd/110:10:121
15075993429,3cyclictest25-21ksoftirqd/107:40:141
15075993429,3cyclictest25-21ksoftirqd/107:25:001
15075993428,4cyclictest25-21ksoftirqd/110:22:451
15075993428,4cyclictest25-21ksoftirqd/107:45:391
15075993427,3cyclictest25-21ksoftirqd/108:40:191
1507599341,10cyclictest25-21ksoftirqd/112:25:001
15074993430,3cyclictest9-21ksoftirqd/008:10:180
15074993429,3cyclictest9-21ksoftirqd/011:50:000
15074993429,3cyclictest9-21ksoftirqd/011:40:230
15074993429,3cyclictest9-21ksoftirqd/007:35:180
139291340,0ptp4l401ktimersoftd/312:28:403
1507799330,3cyclictest6624-21cpuspeed_turbos12:30:133
15076993328,3cyclictest33-21ksoftirqd/211:59:222
15076993328,3cyclictest33-21ksoftirqd/209:04:232
15076993328,3cyclictest33-21ksoftirqd/208:39:142
15076993327,4cyclictest33-21ksoftirqd/212:39:012
15076993327,4cyclictest33-21ksoftirqd/212:25:202
15076993327,4cyclictest33-21ksoftirqd/208:40:372
15076993327,4cyclictest33-21ksoftirqd/207:52:182
15075993329,2cyclictest25-21ksoftirqd/108:35:021
15075993328,3cyclictest25-21ksoftirqd/111:50:251
15075993328,3cyclictest25-21ksoftirqd/111:08:341
15075993327,4cyclictest25-21ksoftirqd/112:00:051
1507499333,2cyclictest121rcu_preempt07:20:260
15074993329,3cyclictest9-21ksoftirqd/010:15:240
15074993329,2cyclictest9-21ksoftirqd/007:19:590
15074993328,3cyclictest9-21ksoftirqd/012:25:000
15074993328,3cyclictest9-21ksoftirqd/011:00:130
15074993328,3cyclictest9-21ksoftirqd/010:25:130
15074993328,3cyclictest9-21ksoftirqd/009:37:100
15074993328,3cyclictest9-21ksoftirqd/007:42:090
15074993328,3cyclictest9-21ksoftirqd/007:12:480
15074993327,4cyclictest9-21ksoftirqd/009:42:560
15074993324,7cyclictest9-21ksoftirqd/009:02:250
15077993228,3cyclictest41-21ksoftirqd/307:28:193
15077993227,3cyclictest41-21ksoftirqd/310:57:053
15077993227,3cyclictest41-21ksoftirqd/309:02:193
15077993226,4cyclictest41-21ksoftirqd/311:21:243
15077993226,4cyclictest41-21ksoftirqd/311:07:443
15077993226,4cyclictest41-21ksoftirqd/310:30:093
15077993226,4cyclictest41-21ksoftirqd/310:09:233
15077993226,4cyclictest41-21ksoftirqd/308:24:403
15076993227,3cyclictest33-21ksoftirqd/209:51:452
15076993227,3cyclictest33-21ksoftirqd/207:34:512
15076993227,3cyclictest33-21ksoftirqd/207:34:512
15076993227,3cyclictest33-21ksoftirqd/207:21:432
15076993226,4cyclictest33-21ksoftirqd/212:19:522
15076993226,4cyclictest33-21ksoftirqd/210:53:432
15076993226,4cyclictest33-21ksoftirqd/210:07:582
15076993213,17cyclictest15090-21/usr/sbin/munin07:10:212
1507699320,3cyclictest24547-21dump-pmu-power09:45:002
15075993226,4cyclictest25-21ksoftirqd/111:57:401
15074993228,2cyclictest9-21ksoftirqd/012:25:120
15074993227,3cyclictest9-21ksoftirqd/012:38:350
15074993227,3cyclictest9-21ksoftirqd/012:18:070
15074993227,3cyclictest9-21ksoftirqd/010:00:020
15074993227,3cyclictest9-21ksoftirqd/009:20:000
15074993227,2cyclictest9-21ksoftirqd/011:15:200
15074993226,4cyclictest9-21ksoftirqd/008:18:530
15074993220,3cyclictest9-21ksoftirqd/009:20:240
1507499321,2cyclictest121rcu_preempt10:40:010
1507499320,2cyclictest121rcu_preempt11:25:000
15077993126,3cyclictest41-21ksoftirqd/312:20:433
15077993125,4cyclictest41-21ksoftirqd/310:22:543
15077993125,4cyclictest41-21ksoftirqd/309:53:303
15077993114,14cyclictest19749-21/usr/sbin/munin11:50:193
15076993126,3cyclictest33-21ksoftirqd/211:51:172
15076993126,3cyclictest33-21ksoftirqd/208:25:112
15076993125,4cyclictest33-21ksoftirqd/212:11:412
15076993125,4cyclictest33-21ksoftirqd/208:56:082
15076993125,4cyclictest33-21ksoftirqd/208:56:082
15076993125,4cyclictest33-21ksoftirqd/208:33:102
1507699311,29cyclictest8105-21kworker/2:109:21:572
15074993128,2cyclictest9-21ksoftirqd/009:30:000
15074993126,3cyclictest9-21ksoftirqd/008:05:110
15074993121,3cyclictest9-21ksoftirqd/007:25:250
15077993025,3cyclictest41-21ksoftirqd/311:41:143
15077993025,3cyclictest41-21ksoftirqd/311:25:113
15077993025,3cyclictest41-21ksoftirqd/307:21:093
15077993025,3cyclictest24183-21irqrtprio10:50:183
15077993024,4cyclictest41-21ksoftirqd/309:59:093
15077993011,16cyclictest217-21systemd-journal09:12:213
1507799300,4cyclictest0-21swapper/312:35:123
15076993026,3cyclictest33-21ksoftirqd/211:03:362
15076993025,3cyclictest33-21ksoftirqd/209:49:052
15076993024,4cyclictest33-21ksoftirqd/207:39:462
15076993014,14cyclictest10528-21sed10:20:242
15074993026,3cyclictest9-21ksoftirqd/011:15:000
15074993026,3cyclictest9-21ksoftirqd/010:50:130
1507799295,8cyclictest31007-21fschecks_time08:50:133
1507799295,3cyclictest356-21missed_timers07:45:203
15077992924,3cyclictest41-21ksoftirqd/309:38:103
15076992924,3cyclictest33-21ksoftirqd/210:18:512
1507799288,18cyclictest11407-21cat08:10:133
15077992824,2cyclictest139291ptp4l07:50:423
15076992822,4cyclictest33-21ksoftirqd/212:04:312
1507699281,24cyclictest16056-21/usr/sbin/munin08:20:232
15076992812,13cyclictest8570-21cron12:35:002
15077992722,3cyclictest41-21ksoftirqd/311:39:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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