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2026-03-23 - 06:06
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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 Mon Mar 23, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491208173,23phc2sys0-21swapper/319:07:343
30112204171,22sleep00-21swapper/019:09:140
29442204171,22sleep10-21swapper/119:08:231
27762201168,22sleep20-21swapper/219:06:122
3184621720,7sleep1336299cyclictest20:10:001
139391660,43ptp4l0-21swapper/319:10:003
139391660,43ptp4l0-21swapper/319:10:003
3363996123,6cyclictest33-21ksoftirqd/223:00:152
336199595,10cyclictest26846-21/usr/sbin/munin00:30:170
336199593,16cyclictest19675-21wc00:15:000
3363995818,6cyclictest33-21ksoftirqd/220:00:262
3363995727,4cyclictest33-21ksoftirqd/223:20:192
336199575,9cyclictest1317-21runrttasks00:01:500
336199573,15cyclictest28343-21/usr/sbin/munin21:10:140
336199573,14cyclictest616-21gdbus21:05:250
145492570,4sleep114548-21sh00:05:001
336499566,11cyclictest41-21ksoftirqd/321:35:013
336499565,9cyclictest41-21ksoftirqd/319:35:143
3364995625,9cyclictest41-21ksoftirqd/323:10:163
3363995624,8cyclictest33-21ksoftirqd/222:10:232
3363995614,5cyclictest33-21ksoftirqd/219:45:152
336199564,10cyclictest4333-21sed23:40:250
336199563,15cyclictest17632-21mailstats20:45:240
336499556,8cyclictest41-21ksoftirqd/300:05:243
336499556,8cyclictest41-21ksoftirqd/300:00:003
3363995522,6cyclictest33-21ksoftirqd/223:40:232
3363995521,6cyclictest33-21ksoftirqd/223:15:112
3363995514,6cyclictest33-21ksoftirqd/221:25:222
336199556,10cyclictest21054-21ls23:10:110
336499545,8cyclictest41-21ksoftirqd/323:35:003
336199545,8cyclictest19720-21/usr/sbin/munin00:15:230
336199541,16cyclictest1002-21df_abs21:20:150
336199541,10cyclictest6616-21cut19:15:190
336499536,8cyclictest41-21ksoftirqd/300:35:203
3364995313,4cyclictest41-21ksoftirqd/300:15:143
336199531,16cyclictest0-21swapper/021:41:460
336499526,9cyclictest41-21ksoftirqd/321:30:003
336499524,9cyclictest41-21ksoftirqd/320:55:173
336499524,9cyclictest41-21ksoftirqd/320:55:173
3363995218,6cyclictest33-21ksoftirqd/221:55:192
3363995212,6cyclictest33-21ksoftirqd/219:55:122
336199527,10cyclictest2518-21gnome-shell21:51:590
336199526,8cyclictest29314-21apt-get22:20:120
336199526,11cyclictest2518-21gnome-shell22:19:590
336199524,11cyclictest10346-21df_abs23:55:140
336199522,10cyclictest22720-21df_abs19:50:140
336199521,15cyclictest0-21swapper/022:38:060
336499515,8cyclictest41-21ksoftirqd/323:15:133
336499515,8cyclictest41-21ksoftirqd/320:05:163
336499515,10cyclictest41-21ksoftirqd/321:10:263
336499512,6cyclictest41-21ksoftirqd/322:35:003
336199513,11cyclictest14333-21date21:45:270
336199513,10cyclictest19478-21/usr/sbin/munin20:50:200
336199512,10cyclictest11586-21cpuspeed_turbos22:50:140
336499506,10cyclictest41-21ksoftirqd/319:50:173
336499505,9cyclictest41-21ksoftirqd/321:55:143
336499505,9cyclictest41-21ksoftirqd/320:50:193
336499504,8cyclictest41-21ksoftirqd/322:00:133
336499503,9cyclictest41-21ksoftirqd/321:40:243
336499503,6cyclictest41-21ksoftirqd/323:50:273
336499503,6cyclictest41-21ksoftirqd/319:20:003
336499502,7cyclictest41-21ksoftirqd/321:00:193
336499502,6cyclictest41-21ksoftirqd/320:25:203
336499502,5cyclictest41-21ksoftirqd/323:00:003
336499502,10cyclictest41-21ksoftirqd/320:00:003
336399507,5cyclictest33-21ksoftirqd/223:55:262
336399506,5cyclictest33-21ksoftirqd/221:05:252
336399506,5cyclictest33-21ksoftirqd/220:15:242
336399506,5cyclictest33-21ksoftirqd/200:20:242
336399504,6cyclictest3799-21sort19:10:182
336399504,6cyclictest3799-21sort19:10:172
3363995020,6cyclictest33-21ksoftirqd/221:00:252
3363995018,7cyclictest33-21ksoftirqd/222:20:152
3363995015,6cyclictest33-21ksoftirqd/220:55:002
3363995013,6cyclictest33-21ksoftirqd/222:05:252
336199503,16cyclictest8001-21sort21:35:110
336499495,8cyclictest41-21ksoftirqd/322:20:133
336499495,8cyclictest41-21ksoftirqd/300:25:263
336499495,10cyclictest41-21ksoftirqd/322:40:193
336499494,8cyclictest41-21ksoftirqd/321:10:013
336499493,11cyclictest41-21ksoftirqd/319:20:153
3364994917,10cyclictest41-21ksoftirqd/322:25:163
336399496,5cyclictest33-21ksoftirqd/221:10:212
336399495,5cyclictest33-21ksoftirqd/220:35:232
336399492,8cyclictest7977-21ls19:20:002
3363994911,6cyclictest33-21ksoftirqd/221:50:232
336299499,26cyclictest1317-21runrttasks20:51:191
336199493,9cyclictest22236-21cpuspeed_turbos00:20:130
336199493,17cyclictest10123-21sed20:30:210
336199493,14cyclictest26836-21date22:15:010
336499486,8cyclictest41-21ksoftirqd/321:25:003
336499486,8cyclictest41-21ksoftirqd/300:25:013
336499485,8cyclictest41-21ksoftirqd/322:47:593
336499484,8cyclictest41-21ksoftirqd/300:00:273
336499482,6cyclictest41-21ksoftirqd/323:00:253
336499482,5cyclictest41-21ksoftirqd/320:45:253
336499482,10cyclictest41-21ksoftirqd/323:10:013
3364994817,4cyclictest41-21ksoftirqd/320:02:273
336499481,6cyclictest41-21ksoftirqd/320:30:173
336499480,6cyclictest41-21ksoftirqd/323:35:193
336499480,6cyclictest41-21ksoftirqd/323:35:193
336499480,6cyclictest41-21ksoftirqd/319:30:183
3363994812,5cyclictest33-21ksoftirqd/220:10:262
3363994812,5cyclictest33-21ksoftirqd/220:10:262
336199482,12cyclictest15580-21unixbench_singl20:40:260
336499475,9cyclictest41-21ksoftirqd/323:40:253
336499472,6cyclictest41-21ksoftirqd/300:10:143
336499472,5cyclictest41-21ksoftirqd/323:25:003
3364994718,8cyclictest41-21ksoftirqd/322:54:243
3364994717,3cyclictest41-21ksoftirqd/323:49:083
3364994717,3cyclictest41-21ksoftirqd/320:15:493
3364994712,5cyclictest41-21ksoftirqd/320:10:183
3364994712,5cyclictest41-21ksoftirqd/320:10:183
336499470,6cyclictest41-21ksoftirqd/320:40:143
336499470,5cyclictest41-21ksoftirqd/321:15:143
336399475,5cyclictest33-21ksoftirqd/200:10:252
3363994714,3cyclictest33-21ksoftirqd/223:14:202
336199476,10cyclictest16729-21perl23:00:160
336199473,15cyclictest2156-21perl22:30:140
336199473,12cyclictest3572-21grep21:25:150
336499465,9cyclictest41-21ksoftirqd/300:30:143
3364994618,5cyclictest41-21ksoftirqd/322:10:233
336499461,6cyclictest41-21ksoftirqd/321:50:143
3364994615,6cyclictest41-21ksoftirqd/321:45:173
336499460,8cyclictest41-21ksoftirqd/319:45:143
336499460,6cyclictest41-21ksoftirqd/322:20:003
336499460,6cyclictest41-21ksoftirqd/319:26:163
336399466,6cyclictest33-21ksoftirqd/200:05:242
336399466,5cyclictest33-21ksoftirqd/220:55:162
336399466,5cyclictest33-21ksoftirqd/220:55:162
336399464,6cyclictest33-21ksoftirqd/222:35:152
3363994623,6cyclictest33-21ksoftirqd/223:30:182
3363994623,6cyclictest33-21ksoftirqd/221:20:152
3363994622,6cyclictest33-21ksoftirqd/219:50:152
336199464,16cyclictest8770-21cat22:45:010
336199464,15cyclictest23889-21ls21:00:130
336199463,14cyclictest10337-21latency_hist19:25:000
336199462,11cyclictest15210-21fschecks_count00:05:140
336499453,10cyclictest41-21ksoftirqd/322:35:183
336499452,2cyclictest121rcu_preempt21:35:223
3364994512,8cyclictest41-21ksoftirqd/323:27:423
336499450,6cyclictest41-21ksoftirqd/320:24:033
336499450,5cyclictest41-21ksoftirqd/322:06:393
336499450,5cyclictest41-21ksoftirqd/319:40:143
3363994526,6cyclictest33-21ksoftirqd/220:05:252
336399451,5cyclictest31457-21cat00:40:012
3363994514,4cyclictest33-21ksoftirqd/221:39:222
3363994513,6cyclictest33-21ksoftirqd/222:15:272
336299458,23cyclictest11945-21seq23:57:251
336199453,7cyclictest31277-21uptime20:05:280
336399445,3cyclictest33-21ksoftirqd/219:24:382
336399443,6cyclictest15288-21sensors20:40:242
3363994414,6cyclictest33-21ksoftirqd/221:45:232
3363994412,5cyclictest33-21ksoftirqd/221:30:232
336399440,7cyclictest321ktimersoftd/223:05:122
336399440,7cyclictest321ktimersoftd/200:30:162
336399440,4cyclictest13074-21sh00:00:192
336199445,7cyclictest27821-21iostat_ios20:00:180
336199444,8cyclictest4041-21iostat_ios19:10:210
336199444,8cyclictest4041-21iostat_ios19:10:210
336199444,7cyclictest414-21phc2sys22:25:230
336199444,7cyclictest26015-21df23:20:130
336199444,7cyclictest22220-21meminfo20:55:200
336199444,7cyclictest22220-21meminfo20:55:200
336199444,7cyclictest17692-21apt-get19:40:120
336199443,8cyclictest13435-21perl19:30:150
336199442,13cyclictest18091-21irqrtprio21:55:190
336199442,12cyclictest8266-21iostat_ios23:50:180
336199441,14cyclictest19807-21/usr/sbin/munin22:00:260
336499431,6cyclictest41-21ksoftirqd/320:35:153
336399436,4cyclictest33-21ksoftirqd/220:45:232
336399434,3cyclictest33-21ksoftirqd/219:28:352
3363994322,6cyclictest33-21ksoftirqd/200:25:232
336199433,7cyclictest24994-21perl00:25:170
336199432,7cyclictest22188-21apt-get22:05:120
336399427,4cyclictest33-21ksoftirqd/200:15:222
336399422,6cyclictest33-21ksoftirqd/222:25:242
3363994224,6cyclictest33-21ksoftirqd/222:30:132
3363994222,6cyclictest33-21ksoftirqd/222:40:182
336399421,29cyclictest17423-21cron19:40:012
336399420,7cyclictest321ktimersoftd/222:50:172
336199423,7cyclictest20706-21iostat_ios19:45:180
336399416,4cyclictest33-21ksoftirqd/223:28:042
336399416,4cyclictest33-21ksoftirqd/219:34:412
336399411,6cyclictest217912sleep222:03:102
336199413,7cyclictest15813-21hddtemp_smartct19:35:170
336199412,7cyclictest5898-21iostat_ios23:45:190
336199411,5cyclictest0-21swapper/023:30:260
3363994017,6cyclictest33-21ksoftirqd/222:55:122
336399400,5cyclictest33-21ksoftirqd/220:20:272
336199403,7cyclictest914-21hddtemp_smartct23:35:160
336199403,7cyclictest914-21hddtemp_smartct23:35:160
336199402,11cyclictest4270-21latency_hist20:20:010
336199400,10cyclictest0-21swapper/023:28:420
57898390,7rtkit-daemon0-21swapper/121:12:581
336399397,7cyclictest33-21ksoftirqd/223:50:162
3363993911,7cyclictest33-21ksoftirqd/220:25:192
336199393,10cyclictest7842-21date21:35:010
336199392,13cyclictest5254-21irqstats20:20:180
336299381,34cyclictest24266-21dump-pmu-power00:25:001
336199384,12cyclictest14123-21df22:55:110
336399371,5cyclictest33-21ksoftirqd/223:45:192
3362993731,4cyclictest25-21ksoftirqd/123:19:071
3362993731,4cyclictest25-21ksoftirqd/121:00:001
3362993731,4cyclictest25-21ksoftirqd/121:00:001
3362993731,4cyclictest25-21ksoftirqd/120:47:151
3362993731,3cyclictest25-21ksoftirqd/121:56:191
336299372,3cyclictest8574-21taskset20:26:551
336199373,12cyclictest19051-21fschecks_time23:05:150
336199372,15cyclictest0-21swapper/019:58:310
336399363,4cyclictest121rcu_preempt23:35:252
336399363,4cyclictest121rcu_preempt23:35:252
3363993630,4cyclictest33-21ksoftirqd/220:33:322
336399360,6cyclictest33-21ksoftirqd/221:40:332
3362993631,3cyclictest25-21ksoftirqd/122:15:101
3362993630,4cyclictest25-21ksoftirqd/123:44:101
3362993630,4cyclictest25-21ksoftirqd/123:36:431
3362993630,4cyclictest25-21ksoftirqd/123:36:431
3362993630,4cyclictest25-21ksoftirqd/122:08:221
3362993630,4cyclictest25-21ksoftirqd/121:28:111
3362993630,4cyclictest25-21ksoftirqd/120:34:401
3362993630,4cyclictest25-21ksoftirqd/119:27:241
3362993630,4cyclictest25-21ksoftirqd/100:13:131
3362993629,4cyclictest25-21ksoftirqd/122:14:441
3362993629,4cyclictest25-21ksoftirqd/121:50:121
3362993629,4cyclictest25-21ksoftirqd/120:36:481
3363993513,7cyclictest33-21ksoftirqd/221:15:162
3362993529,4cyclictest25-21ksoftirqd/123:23:321
3362993529,4cyclictest25-21ksoftirqd/122:42:561
3362993529,4cyclictest25-21ksoftirqd/119:14:521
3362993529,4cyclictest25-21ksoftirqd/119:14:521
3362993529,4cyclictest25-21ksoftirqd/100:38:141
3362993529,4cyclictest25-21ksoftirqd/100:33:321
3362993529,3cyclictest25-21ksoftirqd/121:45:361
3362993528,5cyclictest25-21ksoftirqd/123:32:391
3362993528,4cyclictest25-21ksoftirqd/123:46:101
3362993528,4cyclictest25-21ksoftirqd/122:39:231
3363993431,2cyclictest311rcuc/222:47:332
3362993429,3cyclictest25-21ksoftirqd/123:25:131
3362993428,4cyclictest25-21ksoftirqd/121:20:491
3362993428,4cyclictest25-21ksoftirqd/119:42:041
3362993428,4cyclictest25-21ksoftirqd/119:38:271
3362993428,4cyclictest25-21ksoftirqd/119:22:151
3362993428,4cyclictest25-21ksoftirqd/119:15:041
3362993428,4cyclictest25-21ksoftirqd/100:16:151
3362993427,4cyclictest25-21ksoftirqd/122:00:481
3362993416,15cyclictest20561-21hddtemp_smartct19:45:161
336199344,7cyclictest24537-21phc2sys-jitter23:15:190
3361993428,4cyclictest9-21ksoftirqd/019:25:300
336199340,5cyclictest0-21swapper/020:36:010
3363993328,3cyclictest33-21ksoftirqd/219:40:532
3362993328,3cyclictest25-21ksoftirqd/121:31:141
3362993328,3cyclictest25-21ksoftirqd/119:55:121
3362993327,4cyclictest25-21ksoftirqd/123:04:101
3362993327,4cyclictest25-21ksoftirqd/121:40:581
3362993327,4cyclictest25-21ksoftirqd/120:04:311
3362993327,4cyclictest25-21ksoftirqd/119:52:311
336199332,6cyclictest0-21swapper/022:49:090
3362993227,3cyclictest25-21ksoftirqd/123:53:471
3362993227,3cyclictest25-21ksoftirqd/121:01:141
3362993226,4cyclictest25-21ksoftirqd/123:10:321
3362993226,4cyclictest25-21ksoftirqd/122:24:551
3362993210,18cyclictest12775-21ptp4l22:50:241
3361993226,4cyclictest9-21ksoftirqd/000:36:120
336199321,10cyclictest0-21swapper/021:15:180
3362993126,3cyclictest25-21ksoftirqd/121:09:491
336299312,5cyclictest0-21swapper/100:05:111
3362993125,3cyclictest25-21ksoftirqd/120:15:111
3362993115,13cyclictest8169-21df21:35:121
3361993126,3cyclictest9-21ksoftirqd/020:10:120
3361993126,3cyclictest9-21ksoftirqd/020:10:110
336299308,19cyclictest13887-21latency19:30:191
3362993025,3cyclictest25-21ksoftirqd/122:55:131
3362993024,4cyclictest25-21ksoftirqd/122:49:211
3362993024,4cyclictest25-21ksoftirqd/121:15:471
336199303,16cyclictest7018-21df_abs20:25:160
336299288,17cyclictest32341-21irqrtprio22:25:201
336299286,3cyclictest4776-21cut20:20:151
3362992823,3cyclictest25-21ksoftirqd/120:40:111
3362992822,4cyclictest25-21ksoftirqd/120:14:011
3362992822,4cyclictest25-21ksoftirqd/120:14:011
336299281,6cyclictest3865-21turbostat.cron22:35:001
336299280,3cyclictest19627-21meminfo23:05:211
336299274,3cyclictest0-21swapper/100:26:341
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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