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2026-04-23 - 08:03
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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 all highest latencies:
System rackdslot2.osadl.org (updated Thu Apr 23, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
139591236169,22phc2sys0-21swapper/319:09:283
190422205171,23sleep20-21swapper/219:05:272
192412203171,21sleep10-21swapper/119:07:501
191532203169,22sleep00-21swapper/019:06:420
925221620,6sleep21970999cyclictest23:15:272
1395918363,11phc2sys0-21swapper/319:10:013
1395918363,11phc2sys0-21swapper/319:10:003
19708996524,9cyclictest25-21ksoftirqd/123:10:221
19708996522,9cyclictest25-21ksoftirqd/122:40:171
19708996522,9cyclictest25-21ksoftirqd/122:40:171
107012650,7sleep31971099cyclictest21:05:183
19708996429,10cyclictest25-21ksoftirqd/120:10:001
1970799630,26cyclictest31923-21interrupts00:05:180
19708996129,9cyclictest25-21ksoftirqd/120:05:001
19708996126,5cyclictest25-21ksoftirqd/121:20:131
19708995927,9cyclictest25-21ksoftirqd/123:05:241
19707995812,21cyclictest7861-21sed22:05:250
19707995812,21cyclictest7861-21sed22:05:240
19708995726,10cyclictest25-21ksoftirqd/120:55:011
19708995724,9cyclictest25-21ksoftirqd/120:20:171
19708995724,10cyclictest25-21ksoftirqd/121:15:141
1970799571,20cyclictest0-21swapper/022:30:280
1970799570,2cyclictest8349-21taskset00:24:170
1970899556,9cyclictest25-21ksoftirqd/120:20:011
1970899555,8cyclictest25-21ksoftirqd/100:05:191
1970799559,19cyclictest5326-21taskset22:00:230
1970799550,23cyclictest2560-21latency21:55:190
1970799550,22cyclictest21230-21threads19:10:240
1970799550,22cyclictest21230-21threads19:10:240
1970799550,21cyclictest20816-21ptp4l-jitter21:25:220
1970799541,24cyclictest7099-21seq23:12:320
1970799541,23cyclictest9541-21seq21:02:580
1970799540,23cyclictest9561-21seq23:18:420
1970899535,8cyclictest25-21ksoftirqd/100:15:011
1970899534,9cyclictest25-21ksoftirqd/123:50:191
1970899534,9cyclictest25-21ksoftirqd/100:25:131
19708995323,4cyclictest25-21ksoftirqd/122:00:181
139291530,1ptp4l401ktimersoftd/320:30:213
1970899524,6cyclictest25-21ksoftirqd/121:50:261
1970899523,9cyclictest25-21ksoftirqd/100:20:141
1970899523,8cyclictest25-21ksoftirqd/120:40:141
19708995226,9cyclictest25-21ksoftirqd/122:00:011
19708995223,4cyclictest25-21ksoftirqd/119:20:151
1970899520,7cyclictest25-21ksoftirqd/100:35:241
1970799520,28cyclictest22048-21appstreamcli21:30:000
1970899515,8cyclictest25-21ksoftirqd/119:50:161
1970899515,10cyclictest25-21ksoftirqd/123:45:181
1970899512,6cyclictest25-21ksoftirqd/119:50:001
1970799510,33cyclictest25743-21df_abs22:45:140
1970799510,31cyclictest16508-21taskset23:31:240
1970799510,28cyclictest18976-21seq21:21:400
1970799510,25cyclictest24536-21cpuspeed_turbos21:35:120
139291510,17ptp4l29215-21/usr/sbin/munin19:30:263
1970899506,10cyclictest25-21ksoftirqd/120:10:181
1970899504,8cyclictest25-21ksoftirqd/121:35:001
1970899503,6cyclictest25-21ksoftirqd/123:00:211
1970899500,13cyclictest25-21ksoftirqd/121:05:251
1970799501,31cyclictest22801-21runrttasks20:22:180
1970799501,27cyclictest0-21swapper/000:26:200
1970799501,21cyclictest0-21swapper/022:50:140
1970799500,25cyclictest3940-21tr23:05:240
1970899494,9cyclictest25-21ksoftirqd/122:45:191
1970899494,10cyclictest25-21ksoftirqd/122:10:141
1970899493,8cyclictest25-21ksoftirqd/122:55:141
1970899493,8cyclictest25-21ksoftirqd/122:20:171
1970899492,6cyclictest25-21ksoftirqd/119:25:171
19708994914,7cyclictest25-21ksoftirqd/120:55:171
1970899490,7cyclictest25-21ksoftirqd/121:25:251
1970799491,26cyclictest2685-21/usr/sbin/munin00:10:230
1970799491,22cyclictest217-21systemd-journal19:30:050
1970799490,29cyclictest2405-21seq20:49:070
1970799490,23cyclictest14163-21runrttasks21:11:290
135191490,4getstats8728-21phc2sys23:15:223
1970899485,9cyclictest25-21ksoftirqd/121:00:201
1970899485,8cyclictest121rcu_preempt00:30:181
1970899484,8cyclictest25-21ksoftirqd/100:00:191
1970899483,10cyclictest25-21ksoftirqd/123:30:141
19708994830,10cyclictest25-21ksoftirqd/119:45:001
19708994829,9cyclictest25-21ksoftirqd/123:15:351
1970899482,8cyclictest25-21ksoftirqd/123:25:151
1970899482,8cyclictest25-21ksoftirqd/120:45:131
1970899482,11cyclictest25-21ksoftirqd/122:25:161
19708994816,9cyclictest25-21ksoftirqd/120:35:221
1970899481,5cyclictest25-21ksoftirqd/100:15:261
1970899481,11cyclictest25-21ksoftirqd/121:30:141
1970799481,24cyclictest17989-21taskset20:11:450
1970899476,10cyclictest25-21ksoftirqd/119:30:141
1970899475,10cyclictest25-21ksoftirqd/120:00:011
1970899473,5cyclictest25-21ksoftirqd/121:10:241
1970799471,34cyclictest473-21/usr/sbin/munin21:50:230
1970799471,28cyclictest22477-21runrttasks22:36:260
1970799470,27cyclictest3898-21taskset19:44:130
19709994627,17cyclictest33-21ksoftirqd/223:15:002
1970899463,9cyclictest25-21ksoftirqd/122:15:161
1970899463,8cyclictest25-21ksoftirqd/120:30:171
1970899463,10cyclictest25-21ksoftirqd/121:40:241
1970899460,6cyclictest25-21ksoftirqd/121:50:001
1970799460,22cyclictest32121-21runrttasks22:58:270
1970899454,9cyclictest25-21ksoftirqd/119:35:011
1970899453,10cyclictest25-21ksoftirqd/122:50:141
1970899452,10cyclictest25-21ksoftirqd/123:20:131
1970899451,10cyclictest25-21ksoftirqd/120:25:131
1970899450,8cyclictest25-21ksoftirqd/122:30:241
1970899450,14cyclictest25-21ksoftirqd/122:35:171
19710994439,3cyclictest41-21ksoftirqd/323:40:003
1970899443,9cyclictest25-21ksoftirqd/119:15:191
1970899442,9cyclictest25-21ksoftirqd/123:55:191
19708994417,3cyclictest25-21ksoftirqd/119:11:581
19708994417,3cyclictest25-21ksoftirqd/119:11:571
1970899440,8cyclictest25-21ksoftirqd/123:35:161
1970799441,31cyclictest217-21systemd-journal00:02:390
1970799441,25cyclictest27816-21cat21:40:210
1970799440,3cyclictest26554-21taskset19:24:240
1970799440,23cyclictest24173-21cpu23:50:130
19710994338,3cyclictest41-21ksoftirqd/319:25:013
19709994338,3cyclictest33-21ksoftirqd/220:59:592
1970899433,9cyclictest25-21ksoftirqd/122:05:131
1970899433,9cyclictest25-21ksoftirqd/122:05:131
19708994325,8cyclictest25-21ksoftirqd/123:40:141
1970799431,25cyclictest25237-21cat22:45:000
1970799431,25cyclictest25237-21cat22:45:000
139291430,0ptp4l401ktimersoftd/321:37:483
139291430,0ptp4l401ktimersoftd/320:07:153
19709994237,3cyclictest33-21ksoftirqd/220:24:592
19709994230,10cyclictest33-21ksoftirqd/221:20:022
1970799422,28cyclictest28002-21apt-get20:35:130
1970799420,1cyclictest0-21swapper/021:48:190
19710994137,2cyclictest16886-21sort21:20:003
19710994136,3cyclictest41-21ksoftirqd/320:25:003
19710994135,3cyclictest41-21ksoftirqd/320:20:013
139291410,1ptp4l401ktimersoftd/300:34:133
19709994029,9cyclictest33-21ksoftirqd/220:10:252
19709994029,4cyclictest33-21ksoftirqd/222:55:232
1970799400,24cyclictest6629-21/usr/sbin/munin19:50:160
139291400,1ptp4l401ktimersoftd/300:06:263
19710993935,3cyclictest41-21ksoftirqd/319:15:193
19710993934,3cyclictest41-21ksoftirqd/322:29:593
19710993933,4cyclictest41-21ksoftirqd/321:59:353
19710993925,4cyclictest41-21ksoftirqd/323:25:193
19709993935,3cyclictest33-21ksoftirqd/219:40:012
19709993934,3cyclictest33-21ksoftirqd/221:29:592
19709993934,3cyclictest33-21ksoftirqd/220:50:172
1970999393,3cyclictest121rcu_preempt22:15:182
19709993932,4cyclictest33-21ksoftirqd/222:29:252
1970799392,28cyclictest28384-21taskset23:56:410
1970799391,24cyclictest14606-21missed_timers22:20:190
1970799391,22cyclictest0-21swapper/020:30:220
1970799391,19cyclictest0-21swapper/023:42:570
1970799390,24cyclictest23485-21chrt19:15:230
19710993832,4cyclictest41-21ksoftirqd/323:10:103
19710993832,4cyclictest41-21ksoftirqd/300:15:333
19709993832,4cyclictest33-21ksoftirqd/221:43:212
19709993832,4cyclictest33-21ksoftirqd/221:31:042
19709993832,3cyclictest33-21ksoftirqd/219:45:012
19709993826,10cyclictest33-21ksoftirqd/220:25:132
1970799382,20cyclictest0-21swapper/022:10:200
1970799381,26cyclictest0-21swapper/023:00:230
1970799381,24cyclictest6402-21latency_hist19:50:000
1970799380,29cyclictest9937-21irqstats19:55:190
1970799380,26cyclictest0-21swapper/000:30:150
1970799380,22cyclictest11779-21iostat22:15:170
135191380,1getstats0-21swapper/320:55:013
19710993733,2cyclictest41-21ksoftirqd/320:30:003
19710993733,2cyclictest41-21ksoftirqd/320:00:013
19710993732,3cyclictest41-21ksoftirqd/300:10:213
19710993731,4cyclictest41-21ksoftirqd/323:08:263
19710993731,4cyclictest41-21ksoftirqd/322:36:083
19710993731,4cyclictest41-21ksoftirqd/322:20:563
19710993731,3cyclictest41-21ksoftirqd/321:30:273
19709993734,2cyclictest33-21ksoftirqd/222:30:202
19709993732,3cyclictest33-21ksoftirqd/223:40:002
19709993731,4cyclictest33-21ksoftirqd/200:08:222
19709993725,4cyclictest33-21ksoftirqd/221:10:212
1970999371,3cyclictest121rcu_preempt19:10:152
1970999371,3cyclictest121rcu_preempt19:10:142
1970799371,22cyclictest0-21swapper/000:15:180
1970799370,3cyclictest20199-21unixbench_singl20:15:270
19710993632,3cyclictest41-21ksoftirqd/323:40:193
19710993632,2cyclictest41-21ksoftirqd/322:15:013
19710993631,3cyclictest41-21ksoftirqd/323:50:193
19710993631,3cyclictest41-21ksoftirqd/323:20:193
19710993631,3cyclictest41-21ksoftirqd/322:05:133
19710993631,3cyclictest41-21ksoftirqd/322:05:133
19710993631,3cyclictest41-21ksoftirqd/321:30:013
19710993631,3cyclictest41-21ksoftirqd/300:40:003
19710993631,2cyclictest41-21ksoftirqd/319:40:143
19710993630,4cyclictest41-21ksoftirqd/320:46:413
19710993630,4cyclictest41-21ksoftirqd/320:44:123
19710993630,3cyclictest41-21ksoftirqd/319:50:143
19710993622,4cyclictest41-21ksoftirqd/322:15:193
19709993632,3cyclictest33-21ksoftirqd/219:54:592
19709993631,3cyclictest33-21ksoftirqd/221:50:182
19709993631,3cyclictest33-21ksoftirqd/221:05:192
19709993631,3cyclictest33-21ksoftirqd/221:05:002
19709993631,3cyclictest33-21ksoftirqd/220:35:012
19709993631,2cyclictest33-21ksoftirqd/220:00:002
19709993630,4cyclictest33-21ksoftirqd/223:02:162
19709993630,4cyclictest33-21ksoftirqd/219:47:182
19709993630,4cyclictest33-21ksoftirqd/219:17:142
19709993630,4cyclictest33-21ksoftirqd/200:39:352
19707993630,4cyclictest9-21ksoftirqd/020:26:400
1970799361,23cyclictest0-21swapper/023:20:460
1970799361,22cyclictest1308-21runrttasks20:07:010
1970799361,22cyclictest0-21swapper/020:53:190
19710993531,3cyclictest41-21ksoftirqd/300:25:133
19710993531,2cyclictest41-21ksoftirqd/321:10:133
19710993530,3cyclictest41-21ksoftirqd/323:00:183
19710993530,3cyclictest41-21ksoftirqd/319:35:133
19710993530,3cyclictest41-21ksoftirqd/300:01:263
19710993529,4cyclictest41-21ksoftirqd/320:12:153
19709993531,3cyclictest33-21ksoftirqd/223:30:002
19709993531,2cyclictest33-21ksoftirqd/222:05:142
19709993531,2cyclictest33-21ksoftirqd/222:05:142
19709993530,3cyclictest33-21ksoftirqd/221:45:182
19709993530,3cyclictest33-21ksoftirqd/221:35:122
19709993530,3cyclictest33-21ksoftirqd/220:45:182
19709993530,3cyclictest33-21ksoftirqd/220:15:182
19709993530,3cyclictest33-21ksoftirqd/219:30:012
19709993530,3cyclictest33-21ksoftirqd/219:30:012
19709993530,3cyclictest33-21ksoftirqd/200:30:272
19709993530,3cyclictest33-21ksoftirqd/200:20:142
19709993530,3cyclictest33-21ksoftirqd/200:20:002
19709993529,3cyclictest33-21ksoftirqd/200:10:202
19709993523,10cyclictest33-21ksoftirqd/219:20:122
19707993529,4cyclictest9-21ksoftirqd/023:26:040
19707993529,3cyclictest9-21ksoftirqd/019:26:210
1970799350,2cyclictest0-21swapper/023:45:150
1970799350,1cyclictest0-21swapper/020:00:130
19710993429,3cyclictest41-21ksoftirqd/322:00:023
19710993429,3cyclictest41-21ksoftirqd/320:35:423
19710993429,3cyclictest41-21ksoftirqd/319:45:193
19710993429,3cyclictest41-21ksoftirqd/319:25:133
19710993428,4cyclictest41-21ksoftirqd/321:03:103
19709993430,3cyclictest33-21ksoftirqd/222:45:182
19709993430,3cyclictest33-21ksoftirqd/222:14:252
19709993429,3cyclictest33-21ksoftirqd/222:39:252
19709993429,3cyclictest33-21ksoftirqd/200:05:002
19709993428,4cyclictest33-21ksoftirqd/223:54:062
19707993428,3cyclictest9-21ksoftirqd/022:28:420
1970799341,21cyclictest0-21swapper/023:35:210
1970799340,2cyclictest0-21swapper/021:05:260
1970799340,2cyclictest0-21swapper/019:35:150
1970799340,17cyclictest0-21swapper/020:40:210
19710993329,3cyclictest41-21ksoftirqd/322:42:163
19710993329,3cyclictest41-21ksoftirqd/322:42:153
19710993329,3cyclictest41-21ksoftirqd/321:50:203
19710993328,3cyclictest41-21ksoftirqd/322:56:063
19710993328,3cyclictest41-21ksoftirqd/322:55:003
19710993328,3cyclictest41-21ksoftirqd/321:40:193
19710993328,3cyclictest41-21ksoftirqd/320:55:013
19710993328,3cyclictest27662-21wc22:50:013
19710993327,4cyclictest41-21ksoftirqd/323:55:433
19709993330,2cyclictest33-21ksoftirqd/223:25:002
19709993329,3cyclictest33-21ksoftirqd/221:55:132
19709993329,3cyclictest33-21ksoftirqd/221:20:162
19709993328,3cyclictest33-21ksoftirqd/222:24:592
19709993328,3cyclictest33-21ksoftirqd/220:00:152
19709993327,4cyclictest33-21ksoftirqd/223:59:042
19709993327,4cyclictest33-21ksoftirqd/222:53:202
1970999330,2cyclictest121rcu_preempt23:45:182
1970799330,17cyclictest0-21swapper/000:35:190
19710993228,3cyclictest41-21ksoftirqd/322:30:123
19710993227,3cyclictest41-21ksoftirqd/323:45:243
19709993227,3cyclictest33-21ksoftirqd/222:40:202
19709993227,3cyclictest33-21ksoftirqd/222:40:202
19709993227,3cyclictest33-21ksoftirqd/220:05:192
19709993227,2cyclictest33-21ksoftirqd/223:40:192
19709993226,4cyclictest33-21ksoftirqd/220:41:232
19710993126,2cyclictest41-21ksoftirqd/321:20:183
19709993126,3cyclictest33-21ksoftirqd/223:31:312
19709993125,4cyclictest33-21ksoftirqd/200:29:162
1970799310,3cyclictest16024-21processes21:15:250
19710993025,3cyclictest41-21ksoftirqd/321:46:543
19710993025,3cyclictest41-21ksoftirqd/300:23:163
19709993025,3cyclictest33-21ksoftirqd/223:05:192
19709992924,3cyclictest33-21ksoftirqd/220:35:142
19709992918,10cyclictest33-21ksoftirqd/222:00:112
1970799291,24cyclictest6084-21cut20:55:190
139291280,0ptp4l401ktimersoftd/323:31:063
19710992418,4cyclictest41-21ksoftirqd/320:00:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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