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2026-05-28 - 06:54
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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 rackdslot2.osadl.org (updated Thu May 28, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
42392224161,22sleep20-21swapper/219:06:042
45372208175,22sleep10-21swapper/119:09:571
139591207173,22phc2sys0-21swapper/319:08:073
41982205171,22sleep00-21swapper/019:05:370
4837997434,5cyclictest33-21ksoftirqd/223:00:002
26122690,7sleep0483599cyclictest20:10:230
4836996532,8cyclictest25-21ksoftirqd/121:35:011
4836996430,4cyclictest25-21ksoftirqd/122:30:001
4837996324,4cyclictest33-21ksoftirqd/220:39:592
4836996231,4cyclictest25-21ksoftirqd/121:05:181
4837996024,6cyclictest33-21ksoftirqd/200:20:142
4836996027,6cyclictest25-21ksoftirqd/121:25:221
10232590,3sleep00-21swapper/020:09:590
4837995827,3cyclictest33-21ksoftirqd/223:50:232
4837995826,3cyclictest33-21ksoftirqd/222:05:132
4836995829,8cyclictest25-21ksoftirqd/123:10:001
4836995825,7cyclictest25-21ksoftirqd/122:55:011
4836995824,9cyclictest25-21ksoftirqd/100:05:291
4837995722,5cyclictest33-21ksoftirqd/219:40:002
4836995722,4cyclictest25-21ksoftirqd/120:50:261
4836995721,8cyclictest25-21ksoftirqd/119:40:231
4836995721,7cyclictest25-21ksoftirqd/120:00:251
4836995718,4cyclictest25-21ksoftirqd/100:00:241
248532570,3sleep20-21swapper/221:00:012
4837995626,3cyclictest33-21ksoftirqd/219:10:162
4837995624,4cyclictest33-21ksoftirqd/220:10:132
4837995623,6cyclictest33-21ksoftirqd/222:00:002
4837995620,6cyclictest33-21ksoftirqd/222:15:152
4837995616,6cyclictest33-21ksoftirqd/219:30:212
4837995615,7cyclictest33-21ksoftirqd/220:05:012
4836995630,8cyclictest25-21ksoftirqd/120:35:181
4836995621,4cyclictest25-21ksoftirqd/122:10:131
4837995523,7cyclictest33-21ksoftirqd/200:15:202
4837995523,7cyclictest33-21ksoftirqd/200:15:202
4837995522,4cyclictest33-21ksoftirqd/219:25:222
4837995520,6cyclictest33-21ksoftirqd/223:55:222
4837995520,6cyclictest33-21ksoftirqd/222:10:142
4837995520,5cyclictest33-21ksoftirqd/220:15:192
4837995516,5cyclictest33-21ksoftirqd/200:35:002
483799551,46cyclictest21587-21cat00:15:002
4836995530,6cyclictest25-21ksoftirqd/122:15:181
4836995529,7cyclictest25-21ksoftirqd/120:30:251
4836995519,8cyclictest25-21ksoftirqd/122:30:261
4836995519,8cyclictest25-21ksoftirqd/122:30:261
4836995514,9cyclictest25-21ksoftirqd/123:25:231
4837995423,4cyclictest33-21ksoftirqd/223:40:152
4837995420,4cyclictest33-21ksoftirqd/222:40:162
4837995415,7cyclictest33-21ksoftirqd/219:15:232
483699548,3cyclictest25-21ksoftirqd/121:00:241
4836995425,5cyclictest25-21ksoftirqd/122:20:231
4836995423,8cyclictest25-21ksoftirqd/123:25:001
4836995422,4cyclictest25-21ksoftirqd/123:53:251
4836995419,3cyclictest25-21ksoftirqd/120:25:211
4836995416,4cyclictest25-21ksoftirqd/100:27:261
4837995323,3cyclictest33-21ksoftirqd/220:40:202
4837995321,8cyclictest33-21ksoftirqd/221:44:592
4837995320,4cyclictest33-21ksoftirqd/221:14:592
4837995318,6cyclictest33-21ksoftirqd/222:45:162
4837995318,6cyclictest33-21ksoftirqd/200:00:142
4837995315,7cyclictest33-21ksoftirqd/220:30:152
4837995314,6cyclictest33-21ksoftirqd/220:25:192
4836995325,4cyclictest25-21ksoftirqd/119:10:251
4836995324,7cyclictest25-21ksoftirqd/121:00:001
4836995323,9cyclictest25-21ksoftirqd/121:49:591
4836995323,4cyclictest25-21ksoftirqd/121:40:161
483699531,8cyclictest25-21ksoftirqd/122:05:201
4836995317,6cyclictest25-21ksoftirqd/121:10:261
4836995315,9cyclictest25-21ksoftirqd/119:30:231
4836995315,7cyclictest25-21ksoftirqd/119:36:051
4837995224,7cyclictest33-21ksoftirqd/222:50:142
4837995224,7cyclictest33-21ksoftirqd/220:05:182
4837995223,7cyclictest33-21ksoftirqd/221:05:172
4837995220,5cyclictest33-21ksoftirqd/221:15:262
4837995219,9cyclictest33-21ksoftirqd/222:30:212
4837995219,9cyclictest33-21ksoftirqd/222:30:212
4837995218,5cyclictest33-21ksoftirqd/222:35:122
4837995216,7cyclictest33-21ksoftirqd/223:10:162
4837995216,3cyclictest33-21ksoftirqd/220:55:012
4837995214,5cyclictest33-21ksoftirqd/221:30:012
483699527,7cyclictest25-21ksoftirqd/119:15:141
483699526,3cyclictest25-21ksoftirqd/123:00:151
483699526,3cyclictest25-21ksoftirqd/123:00:151
483699526,3cyclictest25-21ksoftirqd/119:55:161
4836995217,3cyclictest25-21ksoftirqd/122:50:231
4836995216,4cyclictest25-21ksoftirqd/120:49:271
4837995131,3cyclictest33-21ksoftirqd/223:35:272
4837995131,3cyclictest33-21ksoftirqd/223:35:272
4837995123,7cyclictest33-21ksoftirqd/221:35:002
4837995123,4cyclictest33-21ksoftirqd/223:05:152
4837995122,4cyclictest33-21ksoftirqd/219:20:212
4837995119,4cyclictest33-21ksoftirqd/200:05:232
4837995117,9cyclictest33-21ksoftirqd/221:20:182
4837995117,5cyclictest33-21ksoftirqd/222:20:212
483699517,3cyclictest25-21ksoftirqd/119:20:151
483699516,2cyclictest25-21ksoftirqd/122:40:261
4837995019,5cyclictest33-21ksoftirqd/222:25:162
4837995016,6cyclictest33-21ksoftirqd/221:45:142
4837995015,5cyclictest33-21ksoftirqd/223:45:142
4837995012,6cyclictest33-21ksoftirqd/221:50:132
483699506,7cyclictest25-21ksoftirqd/100:35:241
483699506,3cyclictest25-21ksoftirqd/121:35:161
4837994917,6cyclictest33-21ksoftirqd/223:00:132
4837994917,6cyclictest33-21ksoftirqd/223:00:132
4837994916,6cyclictest33-21ksoftirqd/223:20:252
483699497,6cyclictest25-21ksoftirqd/123:15:131
483699496,5cyclictest25-21ksoftirqd/123:30:141
483699496,2cyclictest25-21ksoftirqd/100:10:191
483699494,3cyclictest25-21ksoftirqd/120:05:151
4836994921,4cyclictest25-21ksoftirqd/121:50:111
4836994919,7cyclictest25-21ksoftirqd/121:20:121
4836994914,6cyclictest25-21ksoftirqd/120:42:001
4836994913,7cyclictest25-21ksoftirqd/123:41:361
4837994822,7cyclictest33-21ksoftirqd/200:35:172
4837994817,7cyclictest33-21ksoftirqd/200:25:122
4837994817,5cyclictest33-21ksoftirqd/220:45:232
4837994815,5cyclictest33-21ksoftirqd/220:20:212
4837994814,5cyclictest33-21ksoftirqd/220:00:012
4837994813,8cyclictest33-21ksoftirqd/219:50:002
483699486,6cyclictest25-21ksoftirqd/119:50:001
483699486,2cyclictest25-21ksoftirqd/120:15:251
483699486,2cyclictest25-21ksoftirqd/119:25:161
483699485,6cyclictest25-21ksoftirqd/100:30:231
483699483,3cyclictest25-21ksoftirqd/123:35:111
483699483,3cyclictest25-21ksoftirqd/123:35:111
4837994717,4cyclictest33-21ksoftirqd/221:04:162
4837994714,3cyclictest33-21ksoftirqd/221:35:132
483699477,4cyclictest25-21ksoftirqd/122:45:131
483699476,3cyclictest25-21ksoftirqd/121:15:251
483699475,6cyclictest25-21ksoftirqd/119:50:161
483699475,6cyclictest25-21ksoftirqd/119:50:151
483699475,3cyclictest25-21ksoftirqd/120:10:191
483699474,6cyclictest25-21ksoftirqd/121:55:261
4835994739,5cyclictest217-21systemd-journal23:29:590
219712470,7sleep3483899cyclictest20:50:263
483699466,3cyclictest25-21ksoftirqd/123:10:131
483699466,2cyclictest25-21ksoftirqd/120:25:001
483699465,3cyclictest25-21ksoftirqd/122:35:261
483699462,7cyclictest25-21ksoftirqd/100:20:161
483799455,10cyclictest33-21ksoftirqd/223:15:112
483799454,2cyclictest33-21ksoftirqd/222:00:142
483699452,7cyclictest25-21ksoftirqd/122:02:051
483699451,3cyclictest25-21ksoftirqd/123:55:181
483799443,3cyclictest121rcu_preempt19:50:232
483799443,3cyclictest121rcu_preempt19:50:232
483799443,2cyclictest21514-21latency_hist19:44:592
483799440,6cyclictest121rcu_preempt23:30:122
483699441,7cyclictest25-21ksoftirqd/123:45:131
483799439,6cyclictest33-21ksoftirqd/223:25:122
139291420,0ptp4l401ktimersoftd/322:44:533
135291420,1getstats0-21swapper/319:33:493
139291410,0ptp4l401ktimersoftd/322:50:433
139291410,0ptp4l401ktimersoftd/319:23:273
41298400,6rtkit-daemon0-21swapper/023:58:490
41298400,1rtkit-daemon0-21swapper/000:09:190
139291400,0ptp4l401ktimersoftd/323:10:143
4838993933,4cyclictest41-21ksoftirqd/321:23:003
4838993931,6cyclictest41-21ksoftirqd/300:05:003
4836993933,3cyclictest25-21ksoftirqd/100:15:151
4836993933,3cyclictest25-21ksoftirqd/100:15:151
4838993832,4cyclictest41-21ksoftirqd/322:22:293
4838993832,4cyclictest41-21ksoftirqd/322:09:063
4838993832,4cyclictest41-21ksoftirqd/321:47:073
4835993832,3cyclictest9-21ksoftirqd/020:55:010
4835993832,3cyclictest24944-21cron23:15:000
4835993813,3cyclictest28646-21perf20:00:010
139291380,0ptp4l401ktimersoftd/323:33:353
135191380,1getstats0-21swapper/320:49:263
135191380,1getstats0-21swapper/300:39:273
4838993732,3cyclictest41-21ksoftirqd/320:57:443
4838993732,3cyclictest41-21ksoftirqd/320:35:593
4838993731,4cyclictest41-21ksoftirqd/323:28:573
4838993731,4cyclictest41-21ksoftirqd/319:51:223
4838993731,4cyclictest41-21ksoftirqd/319:51:213
4838993731,4cyclictest41-21ksoftirqd/300:30:153
4838993730,4cyclictest41-21ksoftirqd/322:58:413
4835993730,4cyclictest9-21ksoftirqd/019:54:160
4835993730,4cyclictest9-21ksoftirqd/019:54:160
41298370,3rtkit-daemon16167-21iostat_ios20:40:170
41298370,2rtkit-daemon0-21swapper/000:02:160
135191370,1getstats0-21swapper/321:34:273
4838993631,3cyclictest41-21ksoftirqd/322:34:323
4838993631,3cyclictest41-21ksoftirqd/322:34:323
4838993631,3cyclictest41-21ksoftirqd/320:18:263
4838993630,4cyclictest41-21ksoftirqd/319:28:143
4838993630,4cyclictest41-21ksoftirqd/300:23:403
4838993630,4cyclictest41-21ksoftirqd/300:18:073
4838993630,4cyclictest41-21ksoftirqd/300:18:073
4838993630,4cyclictest41-21ksoftirqd/300:05:133
4838993629,4cyclictest41-21ksoftirqd/323:39:443
4838993629,4cyclictest41-21ksoftirqd/323:39:443
4835993630,4cyclictest9-21ksoftirqd/023:37:080
4835993630,4cyclictest9-21ksoftirqd/023:37:080
4835993630,4cyclictest9-21ksoftirqd/000:22:260
4835993629,4cyclictest9-21ksoftirqd/023:47:080
4835993629,4cyclictest9-21ksoftirqd/022:06:170
4835993629,4cyclictest9-21ksoftirqd/021:32:360
4835993629,4cyclictest9-21ksoftirqd/020:18:300
4838993530,3cyclictest41-21ksoftirqd/322:28:323
4838993530,3cyclictest41-21ksoftirqd/322:04:533
4838993530,3cyclictest41-21ksoftirqd/320:13:203
4838993530,3cyclictest41-21ksoftirqd/300:11:033
4838993529,4cyclictest41-21ksoftirqd/323:20:343
4838993529,4cyclictest41-21ksoftirqd/321:02:553
4838993529,4cyclictest41-21ksoftirqd/320:32:543
4838993529,3cyclictest41-21ksoftirqd/323:55:003
4838993528,4cyclictest41-21ksoftirqd/323:16:583
4835993529,4cyclictest9-21ksoftirqd/022:18:020
4835993529,3cyclictest9-21ksoftirqd/021:05:010
4835993528,4cyclictest9-21ksoftirqd/021:08:240
4835993528,4cyclictest9-21ksoftirqd/020:25:000
41298350,2rtkit-daemon0-21swapper/000:10:230
4838993429,3cyclictest41-21ksoftirqd/322:48:203
4838993428,4cyclictest41-21ksoftirqd/322:10:093
4838993428,4cyclictest41-21ksoftirqd/321:11:413
4838993428,4cyclictest41-21ksoftirqd/320:00:363
4838993428,4cyclictest41-21ksoftirqd/319:48:573
4838993427,4cyclictest41-21ksoftirqd/323:45:093
4835993429,3cyclictest9-21ksoftirqd/022:00:090
4835993429,3cyclictest9-21ksoftirqd/019:35:340
4835993428,4cyclictest9-21ksoftirqd/020:59:060
4835993428,3cyclictest9-21ksoftirqd/023:05:560
4835993428,3cyclictest9-21ksoftirqd/021:57:510
4835993428,3cyclictest9-21ksoftirqd/020:25:570
4835993428,3cyclictest9-21ksoftirqd/020:02:540
4835993412,4cyclictest5300-21cut19:10:160
4835993412,4cyclictest4373-21seq21:22:450
41298340,2rtkit-daemon0-21swapper/000:17:420
41298340,2rtkit-daemon0-21swapper/000:17:410
4838993328,3cyclictest41-21ksoftirqd/321:36:493
4838993327,4cyclictest41-21ksoftirqd/321:27:533
4838993327,4cyclictest41-21ksoftirqd/320:28:523
4838993327,4cyclictest41-21ksoftirqd/320:06:303
4838993327,4cyclictest41-21ksoftirqd/319:36:293
4838993325,4cyclictest6423-21forks20:20:143
4835993328,3cyclictest9-21ksoftirqd/023:50:450
4835993327,4cyclictest9-21ksoftirqd/023:24:520
4835993327,3cyclictest9-21ksoftirqd/021:55:000
4835993327,3cyclictest9-21ksoftirqd/021:45:280
4835993326,4cyclictest9-21ksoftirqd/019:45:520
4835993313,3cyclictest16570-21kernelversion22:55:190
4835993313,3cyclictest10687-21/usr/sbin/munin22:45:200
41298330,1rtkit-daemon0-21swapper/022:25:150
139291330,10ptp4l483899cyclictest23:08:003
135191330,1getstats0-21swapper/322:39:263
4838993227,3cyclictest41-21ksoftirqd/321:55:503
4838993227,3cyclictest41-21ksoftirqd/321:08:373
4838993227,3cyclictest41-21ksoftirqd/320:45:003
4835993227,3cyclictest9-21ksoftirqd/022:52:380
4835993227,3cyclictest9-21ksoftirqd/020:30:570
4835993226,4cyclictest9-21ksoftirqd/022:35:340
4835993226,4cyclictest9-21ksoftirqd/000:25:460
4835993226,3cyclictest9-21ksoftirqd/021:25:100
4835993225,4cyclictest9-21ksoftirqd/019:34:420
4838993126,3cyclictest41-21ksoftirqd/323:41:493
4838993126,3cyclictest41-21ksoftirqd/319:17:243
4838993125,4cyclictest41-21ksoftirqd/323:02:183
4838993125,4cyclictest41-21ksoftirqd/323:02:173
4838993125,3cyclictest41-21ksoftirqd/300:25:333
4838993114,13cyclictest32520-21tr21:15:133
4835993126,3cyclictest9-21ksoftirqd/023:31:150
4835993126,3cyclictest9-21ksoftirqd/021:40:330
4835993126,3cyclictest9-21ksoftirqd/000:31:580
4835993125,4cyclictest9-21ksoftirqd/020:46:460
4835993125,4cyclictest9-21ksoftirqd/019:18:040
4835993113,3cyclictest19388-21ptp4l23:00:220
4835993113,3cyclictest19388-21ptp4l23:00:220
483899308,19cyclictest30144-21mailstats22:15:243
4838993025,3cyclictest41-21ksoftirqd/323:55:533
4838993025,3cyclictest41-21ksoftirqd/319:56:563
4838993025,3cyclictest41-21ksoftirqd/319:44:573
4835993025,3cyclictest9-21ksoftirqd/020:39:440
4835993024,3cyclictest9-21ksoftirqd/022:22:430
4835992924,3cyclictest9-21ksoftirqd/021:36:250
4835992924,3cyclictest9-21ksoftirqd/000:36:010
4835992923,3cyclictest9-21ksoftirqd/023:41:530
483899283,22cyclictest18971-21latency_hist21:55:003
4838992823,3cyclictest41-21ksoftirqd/319:11:243
4835992822,3cyclictest9-21ksoftirqd/022:10:040
4835992821,4cyclictest9-21ksoftirqd/021:15:020
4835992621,3cyclictest9-21ksoftirqd/021:11:170
4838992518,5cyclictest41-21ksoftirqd/321:42:183
4835992518,4cyclictest9-21ksoftirqd/019:26:390
4835992518,4cyclictest9-21ksoftirqd/019:20:060
4835992317,4cyclictest9-21ksoftirqd/019:42:070
4835992215,4cyclictest9-21ksoftirqd/022:44:450
4835992013,4cyclictest26855-21unixbench_multi23:15:260
4835991813,3cyclictest5178-21wc22:30:240
4835991813,3cyclictest5178-21wc22:30:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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