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2026-03-22 - 20:09
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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 376 highest latencies:
System rackdslot3.osadl.org (updated Sun Mar 22, 2026 12:45:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139491211177,22phc2sys0-21swapper/307:07:043
141492207174,22sleep10-21swapper/107:08:291
140292202168,22sleep00-21swapper/007:06:540
140882201168,22sleep20-21swapper/207:07:402
2014921600,1sleep00-21swapper/010:45:010
14571996628,10cyclictest33-21ksoftirqd/208:30:182
14571996432,5cyclictest33-21ksoftirqd/210:15:232
14571996330,4cyclictest33-21ksoftirqd/207:50:272
14571996232,4cyclictest33-21ksoftirqd/208:40:182
14571996230,6cyclictest33-21ksoftirqd/207:15:272
14571996229,5cyclictest33-21ksoftirqd/208:45:262
14571996229,10cyclictest33-21ksoftirqd/210:25:232
1457199616,2cyclictest33-21ksoftirqd/210:45:012
14571996129,6cyclictest33-21ksoftirqd/208:05:192
14571996129,5cyclictest33-21ksoftirqd/211:05:182
14571996121,7cyclictest33-21ksoftirqd/211:40:202
14571996031,3cyclictest33-21ksoftirqd/209:00:242
14571996027,4cyclictest33-21ksoftirqd/211:20:002
14571996024,6cyclictest33-21ksoftirqd/207:30:002
14571995929,10cyclictest33-21ksoftirqd/212:05:192
14571995925,5cyclictest33-21ksoftirqd/207:20:152
14571995829,4cyclictest33-21ksoftirqd/212:10:262
14571995821,6cyclictest33-21ksoftirqd/207:43:022
14571995729,5cyclictest33-21ksoftirqd/210:35:152
14571995723,6cyclictest33-21ksoftirqd/211:10:172
14571995722,5cyclictest33-21ksoftirqd/210:50:212
14571995722,5cyclictest33-21ksoftirqd/208:00:162
14571995719,11cyclictest33-21ksoftirqd/211:55:232
14571995626,8cyclictest33-21ksoftirqd/209:55:162
14571995626,5cyclictest33-21ksoftirqd/207:45:262
14571995625,5cyclictest33-21ksoftirqd/208:15:232
14571995624,4cyclictest33-21ksoftirqd/211:30:172
14571995521,5cyclictest33-21ksoftirqd/210:45:222
14571995425,6cyclictest33-21ksoftirqd/211:25:002
14571995425,3cyclictest33-21ksoftirqd/210:30:192
14571995421,4cyclictest33-21ksoftirqd/208:50:252
14571995419,10cyclictest33-21ksoftirqd/209:42:522
199862530,2sleep30-21swapper/311:50:233
1457199535,8cyclictest33-21ksoftirqd/208:35:212
1457199534,6cyclictest33-21ksoftirqd/207:40:002
14571995322,6cyclictest33-21ksoftirqd/211:00:132
14571995321,3cyclictest33-21ksoftirqd/208:55:182
14571995320,5cyclictest33-21ksoftirqd/208:10:562
14571995320,11cyclictest33-21ksoftirqd/210:10:222
14571995220,8cyclictest33-21ksoftirqd/208:20:272
1457199516,5cyclictest33-21ksoftirqd/212:00:212
139391510,0ptp4l401ktimersoftd/309:43:323
1457199507,8cyclictest33-21ksoftirqd/211:50:172
1457199505,6cyclictest33-21ksoftirqd/209:20:162
1457199504,4cyclictest33-21ksoftirqd/212:25:002
14571995021,8cyclictest33-21ksoftirqd/209:12:442
14571995019,6cyclictest33-21ksoftirqd/212:15:152
1457199499,3cyclictest33-21ksoftirqd/207:30:212
1457199499,3cyclictest33-21ksoftirqd/207:30:202
1457199496,8cyclictest33-21ksoftirqd/211:45:142
1457199496,6cyclictest33-21ksoftirqd/212:25:262
1457199496,5cyclictest33-21ksoftirqd/207:55:202
1457199495,6cyclictest33-21ksoftirqd/209:15:212
1457199494,8cyclictest33-21ksoftirqd/211:25:222
1457199494,6cyclictest33-21ksoftirqd/209:45:172
1457199486,2cyclictest33-21ksoftirqd/210:00:202
1457199485,6cyclictest33-21ksoftirqd/212:35:012
1457199484,5cyclictest33-21ksoftirqd/210:55:182
1457199475,5cyclictest33-21ksoftirqd/212:35:172
1457199474,9cyclictest33-21ksoftirqd/209:35:242
1457199474,8cyclictest33-21ksoftirqd/208:25:222
1457199470,11cyclictest33-21ksoftirqd/211:35:152
1457199464,6cyclictest33-21ksoftirqd/209:30:152
1457199463,6cyclictest33-21ksoftirqd/209:05:222
1457199462,9cyclictest33-21ksoftirqd/209:54:072
14571994616,6cyclictest33-21ksoftirqd/210:05:142
1457199460,6cyclictest321ktimersoftd/209:25:222
1457199453,7cyclictest33-21ksoftirqd/210:20:152
1457199433,2cyclictest33-21ksoftirqd/207:10:222
14570994337,3cyclictest25-21ksoftirqd/108:20:001
139391430,0ptp4l401ktimersoftd/311:25:273
139391430,0ptp4l401ktimersoftd/309:21:583
1456999410,5cyclictest121rcu_preempt07:45:000
139391410,0ptp4l401ktimersoftd/311:03:503
14570993929,3cyclictest17801-21latency_hist10:40:011
14569993833,3cyclictest9-21ksoftirqd/010:30:200
14572993713,22cyclictest11602-21sshd09:19:043
14572993713,21cyclictest1358-21cut10:05:153
14570993733,3cyclictest25-21ksoftirqd/110:25:011
14570993732,3cyclictest25-21ksoftirqd/109:00:011
14570993732,3cyclictest25-21ksoftirqd/107:35:011
14570993732,3cyclictest25-21ksoftirqd/107:35:001
14570993731,4cyclictest25-21ksoftirqd/109:46:011
14569993732,2cyclictest9-21ksoftirqd/007:55:000
14569993723,5cyclictest9-21ksoftirqd/007:17:300
2217323628,3sleep341-21ksoftirqd/311:55:223
14572993631,3cyclictest41-21ksoftirqd/310:13:313
14572993630,4cyclictest41-21ksoftirqd/308:00:253
1457299361,31cyclictest25616-21irqrtprio10:55:173
14570993630,4cyclictest25-21ksoftirqd/111:32:121
14570993630,4cyclictest25-21ksoftirqd/110:28:581
14570993630,4cyclictest25-21ksoftirqd/109:27:321
14570993630,3cyclictest25-21ksoftirqd/111:30:011
14570993619,9cyclictest25-21ksoftirqd/111:55:191
14569993632,3cyclictest9-21ksoftirqd/012:05:000
14569993632,3cyclictest9-21ksoftirqd/011:20:000
14569993631,3cyclictest9-21ksoftirqd/012:25:000
14569993631,3cyclictest9-21ksoftirqd/012:00:000
14569993619,4cyclictest9-21ksoftirqd/012:10:280
57898350,2rtkit-daemon0-21swapper/008:49:480
14572993513,19cyclictest26168-21/usr/sbin/munin09:50:123
14572993512,20cyclictest8351-21/usr/sbin/munin08:05:173
14570993530,3cyclictest25-21ksoftirqd/107:15:141
14570993529,4cyclictest25-21ksoftirqd/112:14:561
14570993529,4cyclictest25-21ksoftirqd/111:00:061
14570993529,4cyclictest25-21ksoftirqd/110:33:181
14570993529,4cyclictest25-21ksoftirqd/110:17:181
14570993529,4cyclictest25-21ksoftirqd/109:43:521
14570993529,4cyclictest25-21ksoftirqd/109:40:001
14570993529,4cyclictest25-21ksoftirqd/109:19:041
14570993529,4cyclictest25-21ksoftirqd/108:08:211
14570993529,4cyclictest25-21ksoftirqd/107:59:061
14570993529,4cyclictest25-21ksoftirqd/107:45:141
14570993529,4cyclictest25-21ksoftirqd/107:41:381
14569993532,2cyclictest9-21ksoftirqd/009:55:000
14569993531,2cyclictest15970-21cstates08:20:130
14569993530,3cyclictest9-21ksoftirqd/012:20:000
14569993530,3cyclictest9-21ksoftirqd/010:47:570
14569993529,4cyclictest9-21ksoftirqd/009:17:590
139391350,1ptp4l391rcuc/310:40:263
14572993429,3cyclictest41-21ksoftirqd/312:00:113
14572993429,3cyclictest30662-21cron10:00:003
14572993412,20cyclictest30841-21cstates12:15:143
14572993412,20cyclictest29697-21/usr/sbin/munin11:05:143
14572993411,21cyclictest22524-21sshd08:33:543
14570993430,2cyclictest25-21ksoftirqd/110:10:131
14570993429,3cyclictest25-21ksoftirqd/112:40:011
14570993429,3cyclictest25-21ksoftirqd/112:05:011
14570993429,3cyclictest25-21ksoftirqd/110:55:171
14570993429,3cyclictest25-21ksoftirqd/108:15:011
14570993428,4cyclictest25-21ksoftirqd/112:23:101
14570993428,4cyclictest25-21ksoftirqd/110:49:111
14570993428,4cyclictest25-21ksoftirqd/107:38:491
14569993429,3cyclictest9-21ksoftirqd/012:25:120
14569993429,3cyclictest9-21ksoftirqd/011:20:180
14569993429,3cyclictest9-21ksoftirqd/010:25:180
14569993429,3cyclictest9-21ksoftirqd/010:10:080
14569993429,3cyclictest9-21ksoftirqd/008:55:240
14569993428,4cyclictest9-21ksoftirqd/011:28:090
14569993428,4cyclictest9-21ksoftirqd/008:11:120
14569993428,3cyclictest9-21ksoftirqd/010:25:000
14569993427,5cyclictest9-21ksoftirqd/009:56:470
1456999341,6cyclictest121rcu_preempt08:30:240
1456999341,2cyclictest121rcu_preempt08:50:240
139391340,4ptp4l401ktimersoftd/311:30:203
14572993328,3cyclictest41-21ksoftirqd/308:55:483
14572993327,4cyclictest41-21ksoftirqd/312:39:453
14572993327,4cyclictest41-21ksoftirqd/312:32:593
14572993327,4cyclictest41-21ksoftirqd/311:22:363
14572993327,4cyclictest41-21ksoftirqd/310:04:203
14572993312,19cyclictest1317-21runrttasks12:14:433
14572993311,19cyclictest6439-21unixbench_multi09:05:293
14572993311,19cyclictest15688-21expr10:35:133
14570993330,2cyclictest25-21ksoftirqd/110:00:171
14570993328,3cyclictest25-21ksoftirqd/111:46:581
14570993328,3cyclictest25-21ksoftirqd/110:50:131
14570993328,3cyclictest25-21ksoftirqd/109:00:181
14570993327,4cyclictest25-21ksoftirqd/112:26:031
14570993327,4cyclictest25-21ksoftirqd/111:21:451
14570993327,4cyclictest25-21ksoftirqd/111:05:091
14570993327,4cyclictest25-21ksoftirqd/109:53:241
14570993327,4cyclictest25-21ksoftirqd/109:23:351
14570993327,4cyclictest25-21ksoftirqd/108:36:241
14570993327,3cyclictest25-21ksoftirqd/109:10:001
14570993327,2cyclictest25-21ksoftirqd/109:55:171
1457099332,3cyclictest121rcu_preempt10:40:271
14570993318,4cyclictest25-21ksoftirqd/112:10:011
14569993329,3cyclictest9-21ksoftirqd/008:35:210
14569993329,2cyclictest9-21ksoftirqd/007:10:130
14569993328,3cyclictest9-21ksoftirqd/012:35:000
14569993327,4cyclictest9-21ksoftirqd/010:19:050
14569993327,4cyclictest9-21ksoftirqd/008:42:010
1457299329,3cyclictest5770-21basename08:00:003
14572993227,3cyclictest41-21ksoftirqd/310:35:003
14572993226,4cyclictest41-21ksoftirqd/309:35:073
14572993226,4cyclictest41-21ksoftirqd/308:37:033
14572993211,19cyclictest23853-21latency_hist07:30:003
14572993210,3cyclictest11021-21sed10:25:143
14570993228,3cyclictest25-21ksoftirqd/108:00:251
14570993227,3cyclictest25-21ksoftirqd/109:32:081
14570993227,3cyclictest25-21ksoftirqd/108:30:001
14570993226,4cyclictest25-21ksoftirqd/112:32:411
14570993226,4cyclictest25-21ksoftirqd/107:26:201
14570993226,4cyclictest25-21ksoftirqd/107:24:201
14570993226,3cyclictest25-21ksoftirqd/108:55:011
14570993218,3cyclictest25-21ksoftirqd/109:15:011
14570993217,4cyclictest25-21ksoftirqd/110:05:131
14569993228,2cyclictest9-21ksoftirqd/012:40:010
14569993227,3cyclictest9-21ksoftirqd/007:26:560
14569993226,4cyclictest9-21ksoftirqd/011:48:390
14569993226,4cyclictest9-21ksoftirqd/011:39:000
14569993226,4cyclictest9-21ksoftirqd/007:57:250
14569993218,4cyclictest9-21ksoftirqd/010:40:000
139391320,0ptp4l401ktimersoftd/308:51:483
1457299319,3cyclictest3252-21/usr/sbin/munin12:25:153
1457299317,4cyclictest4235-21sendmail11:20:003
1457299316,24cyclictest41-21ksoftirqd/310:49:043
1457299313,4cyclictest15765-21apt-get08:20:123
14572993126,3cyclictest41-21ksoftirqd/311:44:143
14572993125,4cyclictest41-21ksoftirqd/311:14:203
14572993125,4cyclictest41-21ksoftirqd/310:20:053
14572993125,4cyclictest41-21ksoftirqd/310:18:043
14572993125,4cyclictest41-21ksoftirqd/309:13:573
14572993125,4cyclictest41-21ksoftirqd/308:45:503
14572993125,4cyclictest41-21ksoftirqd/307:50:183
1457299311,11cyclictest11074-21df08:10:143
1457299311,10cyclictest13845-21fschecks_time08:15:173
14570993128,2cyclictest25-21ksoftirqd/107:54:591
14570993126,3cyclictest25-21ksoftirqd/112:20:001
14570993125,4cyclictest25-21ksoftirqd/111:50:381
14570993120,9cyclictest25-21ksoftirqd/107:10:211
14569993127,3cyclictest9-21ksoftirqd/011:50:140
14569993126,3cyclictest9-21ksoftirqd/011:41:290
14569993126,3cyclictest9-21ksoftirqd/011:10:230
14569993126,3cyclictest9-21ksoftirqd/008:30:010
14569993126,3cyclictest9-21ksoftirqd/007:35:160
14569993125,4cyclictest9-21ksoftirqd/011:01:090
14569993125,4cyclictest9-21ksoftirqd/009:42:320
14569993125,4cyclictest9-21ksoftirqd/009:37:020
14569993125,4cyclictest9-21ksoftirqd/008:05:550
14569993125,3cyclictest9-21ksoftirqd/010:50:140
1457299308,3cyclictest20008-21iostat_ios07:20:173
1457299308,3cyclictest17096-21cpuspeed_turbos07:15:143
1457299302,4cyclictest25901-21apt-get12:05:123
14572993024,4cyclictest41-21ksoftirqd/310:53:023
14572993024,4cyclictest41-21ksoftirqd/308:42:293
14572993024,4cyclictest41-21ksoftirqd/307:38:313
1457299301,5cyclictest2518-21gnome-shell09:01:583
1457299301,5cyclictest0-21swapper/311:35:273
14570993025,3cyclictest25-21ksoftirqd/111:15:111
14570993025,3cyclictest25-21ksoftirqd/108:30:121
14570993025,2cyclictest25-21ksoftirqd/111:40:181
14570993025,2cyclictest25-21ksoftirqd/111:40:021
14569993026,2cyclictest9-21ksoftirqd/007:25:000
14569993025,3cyclictest9-21ksoftirqd/011:00:000
14569993025,3cyclictest9-21ksoftirqd/009:45:390
14569993025,3cyclictest9-21ksoftirqd/008:15:010
14569993024,4cyclictest9-21ksoftirqd/011:06:510
14569993024,4cyclictest9-21ksoftirqd/010:03:170
14569993024,4cyclictest9-21ksoftirqd/007:47:420
14569993024,4cyclictest9-21ksoftirqd/007:32:380
14569993024,4cyclictest9-21ksoftirqd/007:32:370
14569993023,5cyclictest9-21ksoftirqd/009:23:570
1456999300,2cyclictest121rcu_preempt09:10:180
1457299298,2cyclictest25395-21tail07:30:233
1457299298,2cyclictest25395-21tail07:30:233
1457299292,4cyclictest2518-21gnome-shell09:45:593
14572992923,4cyclictest41-21ksoftirqd/307:14:323
1457099290,2cyclictest121rcu_preempt11:15:001
14569992924,3cyclictest9-21ksoftirqd/009:05:000
14569992923,4cyclictest9-21ksoftirqd/009:31:430
1457299287,3cyclictest16527-21cpuspeed_turbos11:45:143
1457299285,4cyclictest32565-21sendmail_mailqu07:45:253
14572992823,3cyclictest41-21ksoftirqd/309:30:303
14572992823,3cyclictest41-21ksoftirqd/307:43:443
14572992822,4cyclictest41-21ksoftirqd/309:26:373
1457299281,5cyclictest2518-21gnome-shell12:20:583
14570992823,3cyclictest25-21ksoftirqd/108:40:121
14569992824,3cyclictest9-21ksoftirqd/009:10:010
14569992824,2cyclictest9-21ksoftirqd/010:05:190
14569992822,4cyclictest9-21ksoftirqd/011:30:580
1457299277,3cyclictest19813-21grep08:25:263
14569992722,3cyclictest9-21ksoftirqd/009:25:340
14569992721,4cyclictest9-21ksoftirqd/012:06:040
14570992620,4cyclictest25-21ksoftirqd/108:23:411
14570992521,3cyclictest25-21ksoftirqd/108:46:171
14569992520,3cyclictest9-21ksoftirqd/008:05:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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