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2026-06-01 - 22:03
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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 Mon Jun 01, 2026 12:45:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
120452205173,21sleep10-21swapper/107:07:051
120452205173,21sleep10-21swapper/107:07:051
121862204170,22sleep30-21swapper/307:08:563
121862204170,22sleep30-21swapper/307:08:563
122692202166,24sleep00-21swapper/007:09:580
122692202166,24sleep00-21swapper/007:09:580
119642197165,21sleep20-21swapper/207:06:022
119642197165,21sleep20-21swapper/207:06:022
268592640,5sleep3391rcuc/312:00:003
1385916137,16phc2sys0-21swapper/307:10:013
1257099607,10cyclictest3957-21ls10:05:240
138491590,0ptp4l401ktimersoftd/311:00:233
1257099595,16cyclictest10914-21irqrtprio09:15:180
1257099585,16cyclictest31928-21latency_hist10:00:000
151962570,2sleep00-21swapper/008:20:130
138491570,1ptp4l391rcuc/307:55:423
1257099574,18cyclictest27722-21df_abs08:45:160
1257099574,16cyclictest5036-21cstates12:20:130
1257099565,16cyclictest31028-21expr11:00:220
59282550,3sleep30-21swapper/308:00:183
138491550,1ptp4l401ktimersoftd/310:29:223
1257099546,10cyclictest17871-21cstates07:20:130
1257099535,9cyclictest17452-21egrep08:25:130
1257099535,7cyclictest12284-21awk08:15:000
1257099529,10cyclictest24108-21unixbench_multi08:35:270
213812510,2sleep20-21swapper/207:25:232
138491500,1ptp4l401ktimersoftd/308:13:353
1257099506,7cyclictest8797-21ssh10:15:250
1257099499,15cyclictest18120-21irqrtprio09:30:180
1257099496,7cyclictest11228-21ptp4l-jitter11:25:240
1257099496,13cyclictest20961-21phc2sys-jitter11:45:210
138491480,1ptp4l401ktimersoftd/309:20:493
1257099487,16cyclictest16511-21/usr/sbin/munin11:35:240
138491470,0ptp4l401ktimersoftd/309:55:263
1257199471,3cyclictest0-21swapper/107:11:081
1257099476,8cyclictest10318-21hddtemp_smartct12:30:150
1257099474,8cyclictest9009-21ls12:25:260
12570994711,10cyclictest3145-21irqrtprio09:00:190
1257099465,7cyclictest28486-21ps12:00:220
1257099464,8cyclictest23144-21ps10:45:180
1257099464,10cyclictest17485-21apt-get10:35:130
1257099456,7cyclictest6553-21smart_sda09:05:240
1257099455,7cyclictest24883-21/usr/sbin/munin07:35:150
1257099454,8cyclictest6654-21ls08:00:260
1257099454,8cyclictest23214-21ls11:50:180
138491440,0ptp4l401ktimersoftd/307:54:383
1257099446,8cyclictest20337-21fschecks_time09:35:160
1257099446,7cyclictest32455-21cstates08:55:130
1257099442,10cyclictest0-21swapper/010:55:230
138491430,0ptp4l401ktimersoftd/308:25:453
1257099434,8cyclictest25970-21ps11:55:240
1257099434,7cyclictest26055-21ls08:40:210
12572994236,3cyclictest33-21ksoftirqd/210:09:592
1257099426,7cyclictest14107-21ssh08:15:260
1257099424,7cyclictest29788-21apt-get08:50:110
138491410,0ptp4l401ktimersoftd/307:30:233
12572994136,2cyclictest33-21ksoftirqd/211:00:002
12572994136,2cyclictest33-21ksoftirqd/210:40:012
12572994130,9cyclictest33-21ksoftirqd/211:35:112
1257099415,10cyclictest20777-21cut10:40:180
138491400,1ptp4l401ktimersoftd/311:12:153
138491400,1ptp4l401ktimersoftd/311:12:153
12572994036,2cyclictest4688-21wc08:00:002
12571994010,28cyclictest0-21swapper/107:50:231
1257099402,10cyclictest0-21swapper/007:33:440
134991390,1getstats2172-1kworker/3:0H10:50:173
12572993935,2cyclictest33-21ksoftirqd/210:50:012
12572993934,3cyclictest33-21ksoftirqd/211:54:592
12572993934,3cyclictest33-21ksoftirqd/210:19:592
12572993933,4cyclictest33-21ksoftirqd/212:35:132
1257099393,7cyclictest26520-21ls09:45:260
1257099393,15cyclictest0-21swapper/010:05:000
138491380,0ptp4l401ktimersoftd/308:05:223
12572993834,3cyclictest33-21ksoftirqd/209:25:202
12572993834,2cyclictest33-21ksoftirqd/212:20:002
12572993833,3cyclictest33-21ksoftirqd/212:15:002
12572993833,3cyclictest33-21ksoftirqd/209:20:002
12572993833,3cyclictest33-21ksoftirqd/208:35:192
12572993833,3cyclictest17238-21sh10:35:012
12572993832,3cyclictest33-21ksoftirqd/208:04:592
12572993828,9cyclictest33-21ksoftirqd/209:55:222
12572993828,9cyclictest33-21ksoftirqd/208:15:192
12572993826,10cyclictest33-21ksoftirqd/211:40:132
1257099383,8cyclictest3439-21ls12:15:180
12570993831,4cyclictest9-21ksoftirqd/011:35:010
12573993731,4cyclictest41-21ksoftirqd/309:49:263
12573993731,4cyclictest41-21ksoftirqd/307:37:483
12573993730,5cyclictest41-21ksoftirqd/308:43:473
12572993733,2cyclictest33-21ksoftirqd/212:35:002
12572993733,2cyclictest33-21ksoftirqd/211:20:002
12572993732,3cyclictest33-21ksoftirqd/211:14:592
12572993732,3cyclictest33-21ksoftirqd/211:14:592
12572993732,3cyclictest33-21ksoftirqd/209:10:002
12572993732,3cyclictest33-21ksoftirqd/208:10:182
12571993731,4cyclictest25-21ksoftirqd/108:53:441
1257099374,8cyclictest8499-21irqstats09:10:180
138491360,0ptp4l401ktimersoftd/312:25:133
138491360,0ptp4l401ktimersoftd/311:30:333
12573993631,3cyclictest41-21ksoftirqd/308:17:353
12573993629,4cyclictest41-21ksoftirqd/309:40:443
12572993631,4cyclictest33-21ksoftirqd/208:20:132
12572993631,3cyclictest33-21ksoftirqd/207:30:182
12572993630,4cyclictest33-21ksoftirqd/210:01:252
12572993630,4cyclictest33-21ksoftirqd/209:42:472
12572993630,4cyclictest33-21ksoftirqd/209:34:212
12572993630,4cyclictest33-21ksoftirqd/208:08:202
12572993630,4cyclictest33-21ksoftirqd/207:41:122
12572993630,4cyclictest33-21ksoftirqd/207:35:102
12571993631,3cyclictest25-21ksoftirqd/111:10:001
12571993630,4cyclictest25-21ksoftirqd/112:07:161
12571993630,4cyclictest25-21ksoftirqd/112:02:031
12571993630,4cyclictest25-21ksoftirqd/109:46:231
12571993630,4cyclictest25-21ksoftirqd/108:55:491
12571993629,4cyclictest17108-21cron09:29:591
12570993630,4cyclictest9-21ksoftirqd/012:11:520
1257099362,16cyclictest0-21swapper/010:50:290
138491350,0ptp4l401ktimersoftd/311:50:113
12573993530,3cyclictest41-21ksoftirqd/312:12:243
12573993530,3cyclictest41-21ksoftirqd/309:02:433
12573993529,4cyclictest41-21ksoftirqd/312:37:503
12573993529,4cyclictest41-21ksoftirqd/312:33:333
12573993529,4cyclictest41-21ksoftirqd/307:27:533
12573993528,5cyclictest41-21ksoftirqd/310:44:493
12573993528,5cyclictest41-21ksoftirqd/307:41:413
12573993527,5cyclictest41-21ksoftirqd/310:50:003
12572993530,3cyclictest33-21ksoftirqd/211:05:182
12572993530,3cyclictest33-21ksoftirqd/209:35:192
12572993530,3cyclictest33-21ksoftirqd/209:05:002
12572993530,3cyclictest33-21ksoftirqd/208:55:202
12572993530,3cyclictest33-21ksoftirqd/208:45:202
12572993530,3cyclictest33-21ksoftirqd/208:40:192
12572993530,3cyclictest33-21ksoftirqd/208:30:182
12572993530,2cyclictest33-21ksoftirqd/211:45:182
12572993529,4cyclictest33-21ksoftirqd/209:50:422
12572993529,3cyclictest33-21ksoftirqd/210:24:592
12571993530,3cyclictest25-21ksoftirqd/111:00:121
12571993529,4cyclictest25-21ksoftirqd/111:10:041
12571993529,4cyclictest25-21ksoftirqd/111:10:041
12571993529,4cyclictest25-21ksoftirqd/109:54:531
12571993528,5cyclictest25-21ksoftirqd/110:59:491
12571993528,4cyclictest25-21ksoftirqd/109:04:271
1257199350,5cyclictest24621-21cron10:50:001
12570993530,3cyclictest9-21ksoftirqd/008:30:110
1257099352,7cyclictest30660-21ls12:05:200
138491340,0ptp4l401ktimersoftd/310:35:163
138491340,0ptp4l401ktimersoftd/307:45:253
12573993429,3cyclictest41-21ksoftirqd/312:20:013
12573993429,3cyclictest41-21ksoftirqd/310:33:023
12573993429,3cyclictest41-21ksoftirqd/310:18:273
12573993428,4cyclictest41-21ksoftirqd/310:11:133
12573993428,4cyclictest41-21ksoftirqd/309:16:053
12573993428,4cyclictest41-21ksoftirqd/307:22:193
12573993427,4cyclictest41-21ksoftirqd/311:22:133
12573993427,4cyclictest41-21ksoftirqd/308:33:083
12572993430,2cyclictest33-21ksoftirqd/212:09:592
12572993430,2cyclictest33-21ksoftirqd/211:58:122
12572993429,3cyclictest33-21ksoftirqd/209:45:132
12572993429,3cyclictest33-21ksoftirqd/209:20:122
12572993428,4cyclictest33-21ksoftirqd/212:20:112
12572993428,4cyclictest33-21ksoftirqd/209:12:102
1257199348,22cyclictest19731-21cron07:25:001
12571993429,3cyclictest25-21ksoftirqd/110:33:161
12571993429,3cyclictest25-21ksoftirqd/108:20:111
12571993428,4cyclictest25-21ksoftirqd/111:49:471
12571993428,4cyclictest25-21ksoftirqd/111:37:111
12571993428,4cyclictest25-21ksoftirqd/111:22:431
12571993428,4cyclictest25-21ksoftirqd/110:06:491
12571993428,4cyclictest25-21ksoftirqd/109:57:151
1257099342,9cyclictest13848-21/usr/sbin/munin09:20:220
12570993429,3cyclictest9-21ksoftirqd/009:30:000
138491330,11ptp4l401ktimersoftd/308:20:263
138491330,0ptp4l401ktimersoftd/312:00:123
12573993328,3cyclictest41-21ksoftirqd/309:27:463
12573993327,4cyclictest41-21ksoftirqd/311:44:593
12573993327,4cyclictest41-21ksoftirqd/309:05:543
12573993327,4cyclictest41-21ksoftirqd/308:50:053
12573993327,3cyclictest7115-21turbostat.cron11:20:003
1257299335,3cyclictest33-21ksoftirqd/211:25:192
12572993328,3cyclictest33-21ksoftirqd/211:05:012
12572993328,3cyclictest33-21ksoftirqd/207:51:442
12572993327,4cyclictest33-21ksoftirqd/212:03:512
12572993327,4cyclictest33-21ksoftirqd/210:11:072
12572993327,3cyclictest33-21ksoftirqd/207:25:002
1257199333,23cyclictest17444-21apt-get08:25:131
12571993327,4cyclictest25-21ksoftirqd/112:33:351
12571993327,4cyclictest25-21ksoftirqd/110:11:111
12571993327,4cyclictest25-21ksoftirqd/107:58:521
12571993326,5cyclictest25-21ksoftirqd/109:09:491
12571993326,4cyclictest25-21ksoftirqd/111:18:461
12571993326,4cyclictest25-21ksoftirqd/110:19:571
12571993315,16cyclictest19031-21ls09:30:251
1257199331,24cyclictest17490-21taskset10:35:141
1257099333,13cyclictest10619-21iostat10:20:170
12570993328,3cyclictest9-21ksoftirqd/007:19:360
12570993327,4cyclictest9-21ksoftirqd/011:17:320
12570993327,4cyclictest9-21ksoftirqd/009:51:560
138491320,9ptp4l401ktimersoftd/308:39:543
12573993227,3cyclictest41-21ksoftirqd/312:20:573
12573993226,4cyclictest41-21ksoftirqd/310:20:113
12573993226,4cyclictest41-21ksoftirqd/308:56:593
12573993226,4cyclictest41-21ksoftirqd/308:48:373
12572993229,2cyclictest33-21ksoftirqd/207:20:002
12572993227,3cyclictest33-21ksoftirqd/211:20:192
12572993227,3cyclictest33-21ksoftirqd/210:53:022
12572993226,4cyclictest33-21ksoftirqd/210:41:282
12572993226,4cyclictest33-21ksoftirqd/207:13:522
12572993225,4cyclictest33-21ksoftirqd/211:30:072
1257199328,22cyclictest14143-21switchtime10:25:261
12571993226,4cyclictest25-21ksoftirqd/111:54:411
12571993226,4cyclictest25-21ksoftirqd/109:40:501
12571993226,4cyclictest25-21ksoftirqd/108:48:341
12571993225,4cyclictest25-21ksoftirqd/108:43:411
12571993211,18cyclictest17017-21cron07:17:001
12571993210,19cyclictest13411-21cut09:20:161
1257199320,3cyclictest2133-21dpkg12:15:011
12570993226,4cyclictest9-21ksoftirqd/007:13:020
138491310,0ptp4l401ktimersoftd/311:48:593
138491310,0ptp4l401ktimersoftd/311:36:583
12572993127,3cyclictest33-21ksoftirqd/212:30:002
12572993127,2cyclictest33-21ksoftirqd/207:45:182
12572993126,3cyclictest33-21ksoftirqd/210:25:192
1257199319,18cyclictest10112-21cstates10:20:131
1257199318,20cyclictest8118-21irqrtprio08:05:211
1257199318,20cyclictest21426-21switchtime08:30:241
1257199318,19cyclictest25147-21expr10:50:121
12571993126,3cyclictest25-21ksoftirqd/111:43:231
12571993126,3cyclictest25-21ksoftirqd/108:10:551
12571993126,3cyclictest25-21ksoftirqd/107:40:061
12571993125,4cyclictest25-21ksoftirqd/109:11:411
12571993124,5cyclictest25-21ksoftirqd/111:26:161
1257199310,3cyclictest6788-21taskset08:00:411
1257199310,3cyclictest4568-21latency_hist12:20:011
1257199310,3cyclictest26453-21sensors07:35:251
1257199310,3cyclictest21200-21/usr/sbin/munin10:40:201
1257199310,3cyclictest10084-21grep09:15:131
12570993126,3cyclictest9-21ksoftirqd/012:37:280
12570993125,4cyclictest9-21ksoftirqd/011:43:400
12570993125,4cyclictest9-21ksoftirqd/007:41:140
12570993125,4cyclictest9-21ksoftirqd/007:25:450
1257099312,18cyclictest0-21swapper/011:10:200
1257099312,18cyclictest0-21swapper/011:10:200
138491300,0ptp4l401ktimersoftd/312:05:473
12573993024,4cyclictest41-21ksoftirqd/310:57:263
12573993024,4cyclictest41-21ksoftirqd/310:09:163
1257299300,2cyclictest121rcu_preempt08:50:232
12571993025,3cyclictest25-21ksoftirqd/107:28:071
12571993024,4cyclictest25-21ksoftirqd/109:38:241
12571993024,4cyclictest25-21ksoftirqd/108:18:341
12571993010,18cyclictest22881-21df_abs07:30:141
1257099304,16cyclictest0-21swapper/008:00:000
12570993025,3cyclictest9-21ksoftirqd/007:47:320
1257099302,17cyclictest0-21swapper/008:05:180
1257099302,16cyclictest0-21swapper/010:30:280
12573992924,3cyclictest41-21ksoftirqd/311:25:483
12573992924,3cyclictest41-21ksoftirqd/309:30:243
12573992923,4cyclictest41-21ksoftirqd/311:09:173
12573992923,4cyclictest41-21ksoftirqd/310:04:113
12573992923,4cyclictest41-21ksoftirqd/309:52:233
12573992923,4cyclictest41-21ksoftirqd/309:36:543
12572992925,2cyclictest33-21ksoftirqd/208:25:142
1257199299,18cyclictest12942-21if_enp4s011:30:171
1257199297,20cyclictest30124-21expr07:45:131
1257199297,20cyclictest26853-21dump-pmu-power12:00:001
1257199294,22cyclictest0-21swapper/108:36:551
1257199293,19cyclictest4827-21apt-get12:20:131
1257099293,17cyclictest0-21swapper/010:25:200
12570992923,4cyclictest9-21ksoftirqd/007:53:090
1257099292,16cyclictest0-21swapper/009:40:160
1257099292,15cyclictest0-21swapper/011:24:590
1257099291,15cyclictest0-21swapper/011:05:110
12573992822,4cyclictest41-21ksoftirqd/309:12:313
1257199288,17cyclictest8973-21timerwakeupswit12:25:271
12571992823,3cyclictest25-21ksoftirqd/112:36:021
1257199280,5cyclictest2027-21cat10:05:001
12573992721,4cyclictest41-21ksoftirqd/307:19:223
1257099272,10cyclictest0-21swapper/010:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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