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2026-05-09 - 06:25
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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 Sat May 09, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19892204170,22sleep30-21swapper/319:05:383
325932202169,22sleep20-21swapper/219:05:052
325922202170,21sleep10-21swapper/119:05:041
23282201167,22sleep00-21swapper/019:09:530
1394918363,11phc2sys0-21swapper/319:10:023
2679996328,5cyclictest25-21ksoftirqd/122:55:161
2679996230,7cyclictest25-21ksoftirqd/122:50:201
9302600,3sleep0933-21hwlatdetect21:20:140
2679996030,4cyclictest25-21ksoftirqd/121:45:221
2679996029,6cyclictest25-21ksoftirqd/119:10:131
2679996027,4cyclictest25-21ksoftirqd/122:00:141
2679996027,4cyclictest25-21ksoftirqd/121:00:141
2679996027,10cyclictest25-21ksoftirqd/120:00:151
2679996027,10cyclictest25-21ksoftirqd/100:35:001
2679996026,6cyclictest25-21ksoftirqd/123:30:181
2679996022,4cyclictest25-21ksoftirqd/120:40:241
2679996020,4cyclictest25-21ksoftirqd/119:50:241
2679996020,10cyclictest25-21ksoftirqd/121:30:161
281652590,2sleep30-21swapper/323:25:133
2679995921,3cyclictest25-21ksoftirqd/119:30:241
2679995921,10cyclictest25-21ksoftirqd/121:55:161
2679995830,6cyclictest25-21ksoftirqd/120:45:261
2679995828,9cyclictest25-21ksoftirqd/100:35:131
2679995828,8cyclictest25-21ksoftirqd/122:20:241
2679995827,6cyclictest25-21ksoftirqd/120:10:241
2679995824,4cyclictest25-21ksoftirqd/121:40:231
2679995726,8cyclictest25-21ksoftirqd/122:45:151
2679995724,8cyclictest25-21ksoftirqd/100:15:141
2679995720,8cyclictest25-21ksoftirqd/123:00:201
2679995719,10cyclictest25-21ksoftirqd/121:20:211
2679995717,10cyclictest25-21ksoftirqd/123:35:241
267999566,4cyclictest17012-21basename19:40:001
2679995627,6cyclictest25-21ksoftirqd/123:25:531
2679995625,9cyclictest25-21ksoftirqd/119:55:181
2679995624,8cyclictest25-21ksoftirqd/120:25:251
267999556,7cyclictest25-21ksoftirqd/120:30:261
2679995525,7cyclictest25-21ksoftirqd/119:25:201
2679995522,7cyclictest25-21ksoftirqd/121:50:241
267999545,8cyclictest25-21ksoftirqd/123:45:241
2679995449,3cyclictest231rcuc/123:09:081
2679995425,9cyclictest25-21ksoftirqd/100:10:131
2679995425,7cyclictest25-21ksoftirqd/119:15:191
2679995419,8cyclictest25-21ksoftirqd/100:05:011
2679995419,4cyclictest25-21ksoftirqd/122:12:251
267999536,4cyclictest25-21ksoftirqd/100:00:251
267999535,8cyclictest25-21ksoftirqd/100:25:141
267999535,7cyclictest25-21ksoftirqd/122:15:241
267999535,7cyclictest25-21ksoftirqd/121:25:161
2679995318,8cyclictest25-21ksoftirqd/120:35:151
267999525,7cyclictest25-21ksoftirqd/123:15:221
267999525,7cyclictest25-21ksoftirqd/120:50:131
267999524,9cyclictest25-21ksoftirqd/119:40:181
267999524,7cyclictest25-21ksoftirqd/100:20:191
267999522,7cyclictest25-21ksoftirqd/120:15:161
2679995225,9cyclictest25-21ksoftirqd/122:05:141
2679995221,8cyclictest25-21ksoftirqd/119:50:001
2679995218,7cyclictest25-21ksoftirqd/121:10:241
250642520,2sleep30-21swapper/321:00:283
267999517,3cyclictest25-21ksoftirqd/121:35:131
267999515,7cyclictest25-21ksoftirqd/123:55:231
267999513,7cyclictest25-21ksoftirqd/123:20:221
2679995123,7cyclictest25-21ksoftirqd/123:40:131
2679995121,3cyclictest25-21ksoftirqd/122:40:151
2678995119,4cyclictest9-21ksoftirqd/023:20:170
267999505,9cyclictest25-21ksoftirqd/120:55:151
267999503,7cyclictest25-21ksoftirqd/120:20:221
2679995019,6cyclictest25-21ksoftirqd/120:05:251
267999501,8cyclictest25-21ksoftirqd/123:10:221
267999495,9cyclictest25-21ksoftirqd/122:30:241
268199481,28cyclictest20040-21kworker/3:219:42:133
2680994842,3cyclictest6139-21latency_hist22:40:012
267999485,7cyclictest25-21ksoftirqd/121:15:251
267999484,7cyclictest25-21ksoftirqd/119:20:251
2679994841,4cyclictest27826-21latency_hist21:10:001
267999472,2cyclictest121rcu_preempt22:25:231
2679994618,3cyclictest25-21ksoftirqd/122:35:151
2679994617,7cyclictest25-21ksoftirqd/123:50:151
2678994514,9cyclictest9-21ksoftirqd/022:30:190
2680994328,7cyclictest33-21ksoftirqd/221:00:202
139391420,0ptp4l401ktimersoftd/320:05:133
137512420,1sleep00-21swapper/000:00:240
268099416,7cyclictest33-21ksoftirqd/200:40:012
2680994136,3cyclictest26604-21idleruntime-cro22:15:002
139391410,0ptp4l401ktimersoftd/322:45:183
139391410,0ptp4l401ktimersoftd/322:38:163
2680994028,9cyclictest33-21ksoftirqd/222:15:252
2680994023,10cyclictest33-21ksoftirqd/200:00:242
2680994021,8cyclictest33-21ksoftirqd/223:55:172
267899404,7cyclictest9-21ksoftirqd/000:40:010
2678994035,3cyclictest9-21ksoftirqd/023:49:590
2678994035,3cyclictest9-21ksoftirqd/000:19:590
2680993934,3cyclictest33-21ksoftirqd/221:00:002
2680993927,3cyclictest33-21ksoftirqd/200:30:282
2678993934,3cyclictest9-21ksoftirqd/020:00:000
2678993934,2cyclictest9-21ksoftirqd/021:15:010
267899390,5cyclictest27345-21cstates20:00:130
139391390,0ptp4l401ktimersoftd/320:45:153
2680993832,4cyclictest33-21ksoftirqd/219:12:032
2680993827,9cyclictest321ktimersoftd/219:15:212
2678993833,3cyclictest9-21ksoftirqd/020:10:000
2678993832,4cyclictest9-21ksoftirqd/022:08:130
2678993832,3cyclictest9-21ksoftirqd/020:40:000
2680993732,3cyclictest33-21ksoftirqd/222:00:002
2680993732,3cyclictest33-21ksoftirqd/220:45:012
2680993731,3cyclictest33-21ksoftirqd/223:30:012
2680993731,3cyclictest33-21ksoftirqd/222:59:592
2680993726,10cyclictest33-21ksoftirqd/219:45:252
2680993724,11cyclictest33-21ksoftirqd/220:05:002
2680993722,4cyclictest33-21ksoftirqd/223:20:002
2678993733,2cyclictest9-21ksoftirqd/022:15:010
2681993630,4cyclictest41-21ksoftirqd/323:53:103
2681993614,19cyclictest24464-21/usr/sbin/munin22:10:143
268099364,3cyclictest33-21ksoftirqd/219:25:182
2680993631,3cyclictest33-21ksoftirqd/222:20:172
2680993631,3cyclictest33-21ksoftirqd/221:22:262
2680993631,2cyclictest33-21ksoftirqd/223:45:002
2680993630,4cyclictest33-21ksoftirqd/220:34:112
2680993630,4cyclictest33-21ksoftirqd/200:22:482
2680993630,3cyclictest4979-21cron21:30:002
2680993630,3cyclictest33-21ksoftirqd/222:00:142
2680993623,11cyclictest33-21ksoftirqd/223:20:122
2680993622,4cyclictest33-21ksoftirqd/219:20:182
2678993630,4cyclictest9-21ksoftirqd/019:11:370
2678993629,4cyclictest26745-21cron00:29:590
267899361,5cyclictest0-21swapper/020:15:130
2681993530,3cyclictest41-21ksoftirqd/323:46:303
2681993529,4cyclictest41-21ksoftirqd/321:52:153
2681993529,4cyclictest41-21ksoftirqd/320:28:583
2681993529,4cyclictest41-21ksoftirqd/320:02:433
2681993529,4cyclictest41-21ksoftirqd/300:09:473
2681993513,3cyclictest1610-21awk21:20:203
2681993513,2cyclictest30151-21/usr/sbin/munin23:30:153
2681993513,20cyclictest3371-21hddtemp_smartct21:25:163
268099355,3cyclictest121rcu_preempt00:25:162
2680993531,3cyclictest33-21ksoftirqd/219:35:012
2680993530,3cyclictest33-21ksoftirqd/222:05:122
2680993530,3cyclictest33-21ksoftirqd/221:10:012
2680993530,3cyclictest33-21ksoftirqd/220:05:192
2680993529,4cyclictest33-21ksoftirqd/223:11:252
2680993529,4cyclictest33-21ksoftirqd/220:15:172
2680993529,4cyclictest33-21ksoftirqd/219:53:432
267899354,6cyclictest9-21ksoftirqd/020:55:150
267899353,6cyclictest121rcu_preempt00:15:000
267899353,5cyclictest121rcu_preempt21:55:000
2678993530,3cyclictest9-21ksoftirqd/019:35:000
2678993529,3cyclictest9-21ksoftirqd/021:05:250
267899351,2cyclictest121rcu_preempt19:55:000
267899350,7cyclictest9-21ksoftirqd/023:50:260
267899350,5cyclictest121rcu_preempt00:24:590
2681993428,4cyclictest41-21ksoftirqd/322:41:403
2681993428,4cyclictest41-21ksoftirqd/320:37:333
2681993428,4cyclictest41-21ksoftirqd/319:36:073
2681993428,4cyclictest41-21ksoftirqd/319:24:283
2681993428,4cyclictest41-21ksoftirqd/300:25:543
2681993412,3cyclictest9877-21/usr/sbin/munin19:25:103
2681993411,3cyclictest16199-21expr23:00:143
2681993410,3cyclictest5169-21sed20:20:193
2680993429,3cyclictest33-21ksoftirqd/220:26:142
2680993428,4cyclictest33-21ksoftirqd/221:10:092
2680993424,8cyclictest33-21ksoftirqd/221:15:272
2680993423,9cyclictest33-21ksoftirqd/221:50:232
267899343,5cyclictest121rcu_preempt21:00:210
2678993430,3cyclictest9-21ksoftirqd/023:10:180
2678993429,3cyclictest9-21ksoftirqd/020:35:010
2678993428,4cyclictest9-21ksoftirqd/020:47:210
2678993421,4cyclictest9-21ksoftirqd/022:15:190
267899341,5cyclictest121rcu_preempt22:45:010
267899340,4cyclictest1087-21timerwakeupswit20:10:250
267899340,2cyclictest121rcu_preempt22:48:090
268199339,4cyclictest207-21systemd-journal20:55:003
2681993328,4cyclictest41-21ksoftirqd/320:16:143
2681993328,3cyclictest41-21ksoftirqd/319:51:563
2681993328,3cyclictest41-21ksoftirqd/319:15:113
2681993327,4cyclictest41-21ksoftirqd/322:56:293
2681993327,4cyclictest41-21ksoftirqd/322:24:283
2681993327,4cyclictest41-21ksoftirqd/322:06:193
2681993327,4cyclictest41-21ksoftirqd/321:55:523
2681993327,4cyclictest41-21ksoftirqd/321:40:393
2681993327,4cyclictest41-21ksoftirqd/321:31:173
2681993327,4cyclictest41-21ksoftirqd/321:08:263
2681993327,4cyclictest41-21ksoftirqd/300:03:333
2681993313,2cyclictest22251-21/usr/sbin/munin00:20:213
2681993312,3cyclictest14735-21cat21:50:003
2681993311,3cyclictest29348-21/usr/sbin/munin00:35:223
2680993329,3cyclictest33-21ksoftirqd/221:35:182
2680993329,2cyclictest33-21ksoftirqd/221:45:122
2680993329,2cyclictest33-21ksoftirqd/220:45:182
2680993328,3cyclictest33-21ksoftirqd/223:30:142
2680993328,3cyclictest33-21ksoftirqd/222:50:262
2680993328,3cyclictest33-21ksoftirqd/220:00:002
2680993328,3cyclictest33-21ksoftirqd/219:40:162
2680993327,4cyclictest33-21ksoftirqd/223:01:172
2680993327,4cyclictest33-21ksoftirqd/220:52:082
2680993327,4cyclictest33-21ksoftirqd/200:19:032
2680993327,4cyclictest33-21ksoftirqd/200:13:582
2680993326,5cyclictest33-21ksoftirqd/219:31:172
2678993329,2cyclictest9-21ksoftirqd/023:35:010
2678993329,2cyclictest9-21ksoftirqd/023:15:180
2678993327,4cyclictest9-21ksoftirqd/023:36:300
2678993327,4cyclictest9-21ksoftirqd/022:02:510
267899332,4cyclictest9-21ksoftirqd/000:05:120
267899330,6cyclictest121rcu_preempt20:20:160
267899330,4cyclictest121rcu_preempt20:50:140
268199325,25cyclictest22357-21unixbench_multi23:10:263
2681993228,3cyclictest41-21ksoftirqd/323:20:193
2681993227,3cyclictest41-21ksoftirqd/300:17:153
2681993226,4cyclictest41-21ksoftirqd/323:43:473
2681993226,4cyclictest41-21ksoftirqd/321:12:513
2681993211,3cyclictest12661-21awk19:30:153
2680993228,2cyclictest33-21ksoftirqd/222:45:182
2680993227,3cyclictest33-21ksoftirqd/222:25:222
2680993227,3cyclictest33-21ksoftirqd/220:20:342
2680993226,4cyclictest33-21ksoftirqd/223:05:022
2680993226,4cyclictest33-21ksoftirqd/220:36:442
268099320,5cyclictest33-21ksoftirqd/223:49:592
267899323,3cyclictest9-21ksoftirqd/022:20:230
2678993229,2cyclictest9-21ksoftirqd/000:00:000
2678993228,2cyclictest9-21ksoftirqd/019:40:000
2678993227,3cyclictest9-21ksoftirqd/023:05:130
2678993227,3cyclictest9-21ksoftirqd/023:02:590
2678993227,3cyclictest9-21ksoftirqd/021:40:010
2678993227,3cyclictest9-21ksoftirqd/021:30:120
2678993227,3cyclictest9-21ksoftirqd/021:19:340
2678993227,3cyclictest9-21ksoftirqd/019:25:000
2678993226,4cyclictest9-21ksoftirqd/021:47:220
2678993226,4cyclictest9-21ksoftirqd/020:40:100
267899322,4cyclictest121rcu_preempt19:45:270
267899321,5cyclictest121rcu_preempt21:25:150
2681993126,3cyclictest41-21ksoftirqd/321:39:303
2681993126,3cyclictest41-21ksoftirqd/320:45:013
2681993126,3cyclictest41-21ksoftirqd/319:47:263
2681993125,4cyclictest41-21ksoftirqd/322:19:513
2681993125,4cyclictest41-21ksoftirqd/321:16:323
2681993125,4cyclictest41-21ksoftirqd/319:56:173
2681993125,4cyclictest41-21ksoftirqd/300:33:123
2681993111,3cyclictest9942-21/usr/sbin/munin23:55:183
2681993110,3cyclictest18583-21expr23:05:143
2680993126,3cyclictest33-21ksoftirqd/220:15:012
2680993126,3cyclictest33-21ksoftirqd/200:05:132
2680993125,4cyclictest33-21ksoftirqd/222:42:202
2680993125,4cyclictest33-21ksoftirqd/222:30:092
2680993125,4cyclictest33-21ksoftirqd/221:41:222
2678993126,3cyclictest9-21ksoftirqd/023:40:010
2678993126,3cyclictest9-21ksoftirqd/022:00:000
2678993126,3cyclictest9-21ksoftirqd/000:30:130
2678993125,4cyclictest9-21ksoftirqd/022:50:180
2678993125,4cyclictest9-21ksoftirqd/022:35:520
2678993125,4cyclictest9-21ksoftirqd/019:44:510
267899311,2cyclictest121rcu_preempt22:55:170
267899310,2cyclictest121rcu_preempt19:25:130
2681993024,4cyclictest41-21ksoftirqd/322:33:473
2680993026,2cyclictest33-21ksoftirqd/223:35:242
2680993026,2cyclictest33-21ksoftirqd/221:30:132
2680993024,3cyclictest33-21ksoftirqd/223:50:122
267899302,3cyclictest9-21ksoftirqd/020:25:130
267899301,3cyclictest9-21ksoftirqd/023:25:130
267899301,3cyclictest9-21ksoftirqd/022:25:230
2681992924,3cyclictest41-21ksoftirqd/323:19:163
2681992923,4cyclictest41-21ksoftirqd/322:52:163
267899290,2cyclictest121rcu_preempt19:15:130
139391290,0ptp4l401ktimersoftd/320:12:333
267899281,2cyclictest121rcu_preempt21:45:010
2681992722,3cyclictest41-21ksoftirqd/320:30:113
2681992721,4cyclictest41-21ksoftirqd/322:00:413
139391270,1ptp4l0-21swapper/322:27:043
2681992621,3cyclictest41-21ksoftirqd/320:57:193
2681992419,3cyclictest41-21ksoftirqd/323:38:063
139391230,0ptp4l401ktimersoftd/300:10:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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