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2026-08-07 - 04:24
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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 Fri Aug 07, 2026 00:45:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
185812208175,22sleep20-21swapper/219:09:042
185812208175,22sleep20-21swapper/219:09:042
183462206172,22sleep30-21swapper/319:06:073
183462206172,22sleep30-21swapper/319:06:073
185942204170,23sleep00-21swapper/019:09:140
185942204170,23sleep00-21swapper/019:09:140
185232204171,22sleep10-21swapper/119:08:181
185232204171,22sleep10-21swapper/119:08:181
1903021690,6sleep21894799cyclictest20:15:222
1812621410,7sleep01894599cyclictest23:35:260
139391660,1ptp4l25875-21ls22:45:213
1894599630,20cyclictest32390-21df_abs20:45:150
1894599621,21cyclictest23656-21latency_hist19:20:010
1894599621,21cyclictest16205-21date21:20:000
1894599570,20cyclictest7298-21timerandwakeup00:20:270
1894599560,22cyclictest24180-21cat19:20:140
139391550,1ptp4l401ktimersoftd/321:49:423
156542530,3sleep00-21swapper/022:25:180
156542530,3sleep00-21swapper/022:25:180
1894599471,42cyclictest18496-21cron21:25:000
18947994626,17cyclictest30506-21cron00:05:002
18948994438,3cyclictest12809-21sh20:04:593
1894699440,41cyclictest4240-21latency_hist20:54:591
18945994336,4cyclictest4235-21cron20:55:000
139391430,0ptp4l401ktimersoftd/321:35:213
18946994237,3cyclictest25-21ksoftirqd/123:00:011
18946994237,3cyclictest25-21ksoftirqd/123:00:011
139391420,0ptp4l401ktimersoftd/320:40:183
139391420,0ptp4l401ktimersoftd/300:30:403
18946994135,4cyclictest9006-21ls21:05:011
18946994034,3cyclictest25-21ksoftirqd/122:40:011
18946993934,3cyclictest25-21ksoftirqd/123:20:001
18946993934,3cyclictest25-21ksoftirqd/120:30:001
18946993930,7cyclictest25-21ksoftirqd/122:25:191
18946993930,7cyclictest25-21ksoftirqd/122:25:191
57898380,5rtkit-daemon27436-21strings19:25:221
18946993834,3cyclictest25-21ksoftirqd/123:15:001
18946993834,2cyclictest25-21ksoftirqd/121:10:011
18946993833,3cyclictest25-21ksoftirqd/121:40:011
18946993833,3cyclictest25-21ksoftirqd/120:35:211
18946993833,3cyclictest25-21ksoftirqd/119:45:181
18945993831,5cyclictest9-21ksoftirqd/022:47:330
18947993731,4cyclictest33-21ksoftirqd/220:02:552
18946993734,2cyclictest25-21ksoftirqd/123:25:001
18946993733,3cyclictest25-21ksoftirqd/119:50:191
18946993732,3cyclictest25-21ksoftirqd/123:40:191
18946993732,3cyclictest25-21ksoftirqd/122:00:011
18946993732,3cyclictest25-21ksoftirqd/122:00:011
18948993630,4cyclictest41-21ksoftirqd/322:12:453
18948993630,4cyclictest41-21ksoftirqd/319:30:063
18948993629,5cyclictest41-21ksoftirqd/321:20:093
18947993632,2cyclictest33-21ksoftirqd/219:20:012
18947993631,3cyclictest33-21ksoftirqd/223:40:012
18947993630,4cyclictest33-21ksoftirqd/221:27:512
18947993630,4cyclictest33-21ksoftirqd/221:27:512
18947993630,4cyclictest33-21ksoftirqd/220:53:252
18946993632,2cyclictest25-21ksoftirqd/120:00:001
18946993631,3cyclictest25-21ksoftirqd/100:05:201
18946993630,4cyclictest25-21ksoftirqd/123:27:001
18946993630,4cyclictest25-21ksoftirqd/121:22:001
18946993630,3cyclictest25-21ksoftirqd/120:30:191
18945993629,4cyclictest9-21ksoftirqd/022:54:590
139391360,0ptp4l401ktimersoftd/319:45:253
18948993529,4cyclictest41-21ksoftirqd/323:52:133
18948993529,4cyclictest41-21ksoftirqd/323:11:383
18947993529,4cyclictest33-21ksoftirqd/222:35:012
18947993529,4cyclictest33-21ksoftirqd/222:22:392
18947993529,4cyclictest33-21ksoftirqd/221:48:442
18947993529,4cyclictest33-21ksoftirqd/220:43:142
18947993529,4cyclictest33-21ksoftirqd/220:21:472
18947993529,4cyclictest33-21ksoftirqd/220:05:432
18947993529,4cyclictest26973-21cron22:49:592
18946993532,2cyclictest25-21ksoftirqd/122:15:181
18946993532,2cyclictest25-21ksoftirqd/100:30:001
18946993531,3cyclictest25-21ksoftirqd/119:20:191
18946993531,2cyclictest25-21ksoftirqd/121:50:001
18946993531,2cyclictest25-21ksoftirqd/119:15:191
18946993530,3cyclictest25-21ksoftirqd/123:50:201
18946993529,4cyclictest25-21ksoftirqd/100:22:251
18946993529,3cyclictest25-21ksoftirqd/122:10:181
1894599350,15cyclictest0-21swapper/021:35:160
18948993429,3cyclictest41-21ksoftirqd/322:39:413
18948993429,3cyclictest41-21ksoftirqd/320:05:123
18948993429,3cyclictest41-21ksoftirqd/319:11:253
18948993428,4cyclictest41-21ksoftirqd/320:12:423
18948993427,4cyclictest41-21ksoftirqd/319:53:373
18948993427,4cyclictest41-21ksoftirqd/300:11:123
18947993429,3cyclictest33-21ksoftirqd/221:55:482
18947993429,3cyclictest33-21ksoftirqd/221:55:482
18947993429,3cyclictest33-21ksoftirqd/221:06:582
18947993429,3cyclictest33-21ksoftirqd/219:49:542
18947993428,4cyclictest33-21ksoftirqd/220:13:422
18947993428,4cyclictest33-21ksoftirqd/219:22:112
18947993428,4cyclictest33-21ksoftirqd/200:32:442
18947993427,4cyclictest33-21ksoftirqd/223:57:382
18946993430,2cyclictest25-21ksoftirqd/123:45:131
18946993430,2cyclictest25-21ksoftirqd/122:00:191
18946993430,2cyclictest25-21ksoftirqd/100:35:141
18946993429,3cyclictest25-21ksoftirqd/123:35:181
18946993429,3cyclictest25-21ksoftirqd/121:25:191
18946993429,3cyclictest25-21ksoftirqd/121:25:191
18946993429,3cyclictest25-21ksoftirqd/120:45:191
18946993429,3cyclictest25-21ksoftirqd/120:25:001
18946993429,3cyclictest25-21ksoftirqd/100:30:271
18946993428,4cyclictest25-21ksoftirqd/123:02:061
18946993428,4cyclictest25-21ksoftirqd/121:12:221
18946993428,4cyclictest25-21ksoftirqd/120:15:001
18946993428,4cyclictest25-21ksoftirqd/100:17:311
18946993428,4cyclictest25-21ksoftirqd/100:13:421
18946993428,3cyclictest25-21ksoftirqd/121:30:191
1894599348,16cyclictest1317-21runrttasks23:00:030
18945993428,4cyclictest9-21ksoftirqd/021:43:300
18945993428,4cyclictest9-21ksoftirqd/019:35:040
18948993329,3cyclictest41-21ksoftirqd/300:27:403
18948993327,4cyclictest41-21ksoftirqd/323:17:283
18948993327,4cyclictest41-21ksoftirqd/320:46:193
18948993327,4cyclictest41-21ksoftirqd/320:24:463
18948993327,4cyclictest41-21ksoftirqd/300:21:473
18947993329,3cyclictest33-21ksoftirqd/221:20:292
18947993328,3cyclictest33-21ksoftirqd/220:37:132
18947993327,4cyclictest33-21ksoftirqd/223:48:442
18947993327,4cyclictest33-21ksoftirqd/223:34:362
18947993327,4cyclictest33-21ksoftirqd/222:28:412
18947993327,4cyclictest33-21ksoftirqd/222:28:412
18947993327,4cyclictest33-21ksoftirqd/220:46:152
18947993327,4cyclictest33-21ksoftirqd/220:31:192
18947993327,4cyclictest33-21ksoftirqd/219:50:312
18947993327,4cyclictest33-21ksoftirqd/200:35:062
18947993327,4cyclictest33-21ksoftirqd/200:13:462
18946993329,2cyclictest25-21ksoftirqd/119:35:001
18946993328,3cyclictest25-21ksoftirqd/122:45:201
18946993328,3cyclictest25-21ksoftirqd/119:40:131
18946993328,3cyclictest25-21ksoftirqd/119:35:131
18946993328,3cyclictest25-21ksoftirqd/119:15:001
18946993327,4cyclictest25-21ksoftirqd/123:58:131
18946993327,4cyclictest25-21ksoftirqd/123:32:401
18946993327,4cyclictest25-21ksoftirqd/120:40:041
18946993327,3cyclictest25-21ksoftirqd/121:40:201
18946993326,5cyclictest25-21ksoftirqd/121:51:251
1894599334,12cyclictest57898rtkit-daemon23:30:120
18945993328,3cyclictest9-21ksoftirqd/023:55:010
18945993327,4cyclictest9-21ksoftirqd/023:42:080
18945993327,4cyclictest9-21ksoftirqd/022:24:010
18945993327,4cyclictest9-21ksoftirqd/021:55:440
18945993327,4cyclictest9-21ksoftirqd/021:55:440
18945993327,4cyclictest9-21ksoftirqd/021:51:030
18945993327,4cyclictest9-21ksoftirqd/019:25:380
18945993327,4cyclictest9-21ksoftirqd/000:39:050
18945993326,5cyclictest9-21ksoftirqd/019:45:560
1894599330,19cyclictest0-21swapper/022:16:350
139391330,0ptp4l401ktimersoftd/322:15:103
139391330,0ptp4l401ktimersoftd/319:23:513
139391330,0ptp4l401ktimersoftd/319:17:303
18948993227,3cyclictest41-21ksoftirqd/323:57:003
18948993227,3cyclictest41-21ksoftirqd/323:26:223
18948993227,3cyclictest41-21ksoftirqd/319:35:073
18948993226,4cyclictest41-21ksoftirqd/323:39:453
18948993226,4cyclictest41-21ksoftirqd/322:29:453
18948993226,4cyclictest41-21ksoftirqd/322:29:453
18948993226,4cyclictest41-21ksoftirqd/321:55:083
18948993226,4cyclictest41-21ksoftirqd/321:55:083
18948993226,4cyclictest41-21ksoftirqd/321:31:203
18948993226,4cyclictest41-21ksoftirqd/321:11:393
18947993227,3cyclictest33-21ksoftirqd/221:18:482
18947993227,3cyclictest33-21ksoftirqd/219:40:112
18947993227,3cyclictest33-21ksoftirqd/219:28:532
18947993226,4cyclictest33-21ksoftirqd/223:27:142
18947993226,4cyclictest33-21ksoftirqd/223:03:582
18947993226,4cyclictest33-21ksoftirqd/222:35:502
18947993226,4cyclictest33-21ksoftirqd/222:17:592
18947993226,4cyclictest33-21ksoftirqd/221:12:032
18947993226,4cyclictest33-21ksoftirqd/220:58:112
18947993226,4cyclictest33-21ksoftirqd/220:58:112
18946993228,3cyclictest25-21ksoftirqd/123:05:201
18946993228,3cyclictest25-21ksoftirqd/120:15:221
18946993227,3cyclictest25-21ksoftirqd/122:55:011
18946993226,3cyclictest25-21ksoftirqd/121:20:001
18945993227,3cyclictest9-21ksoftirqd/021:02:160
18945993226,4cyclictest9-21ksoftirqd/023:25:510
18945993226,4cyclictest9-21ksoftirqd/023:07:250
18945993226,4cyclictest9-21ksoftirqd/022:33:440
18945993226,4cyclictest9-21ksoftirqd/022:13:220
18945993226,4cyclictest9-21ksoftirqd/021:05:340
18945993226,4cyclictest9-21ksoftirqd/020:58:410
18945993226,4cyclictest9-21ksoftirqd/020:58:410
18945993226,4cyclictest9-21ksoftirqd/020:37:180
18945993226,4cyclictest9-21ksoftirqd/020:29:070
18945993226,4cyclictest9-21ksoftirqd/000:29:250
139391320,0ptp4l401ktimersoftd/323:09:063
18948993126,3cyclictest41-21ksoftirqd/319:44:553
18948993126,3cyclictest41-21ksoftirqd/300:18:543
18948993125,4cyclictest41-21ksoftirqd/321:51:313
18948993125,4cyclictest41-21ksoftirqd/320:50:253
18948993125,4cyclictest41-21ksoftirqd/320:39:063
18948993125,4cyclictest41-21ksoftirqd/320:27:553
18948993125,4cyclictest41-21ksoftirqd/300:37:223
18947993126,3cyclictest33-21ksoftirqd/222:50:422
18947993126,3cyclictest33-21ksoftirqd/222:05:192
18947993126,3cyclictest33-21ksoftirqd/222:02:452
18947993126,3cyclictest33-21ksoftirqd/221:51:492
18947993125,4cyclictest33-21ksoftirqd/219:33:342
18946993127,3cyclictest25-21ksoftirqd/122:10:011
18946993126,3cyclictest25-21ksoftirqd/122:35:011
18946993126,3cyclictest25-21ksoftirqd/120:03:521
18945993126,3cyclictest9-21ksoftirqd/022:35:110
18945993125,4cyclictest9-21ksoftirqd/023:55:480
18945993125,4cyclictest9-21ksoftirqd/022:07:250
18945993125,4cyclictest9-21ksoftirqd/021:27:330
18945993125,4cyclictest9-21ksoftirqd/021:27:330
18945993125,4cyclictest9-21ksoftirqd/020:22:130
18945993125,4cyclictest9-21ksoftirqd/020:15:360
18945993125,4cyclictest9-21ksoftirqd/019:50:490
18945993125,4cyclictest9-21ksoftirqd/000:08:430
18945993125,4cyclictest9-21ksoftirqd/000:02:370
139391310,0ptp4l401ktimersoftd/323:48:563
139391310,0ptp4l401ktimersoftd/322:00:383
139391310,0ptp4l401ktimersoftd/321:29:353
139391310,0ptp4l401ktimersoftd/321:29:353
139391310,0ptp4l401ktimersoftd/321:18:533
139391310,0ptp4l401ktimersoftd/321:02:063
139391310,0ptp4l401ktimersoftd/320:18:503
18948993025,3cyclictest41-21ksoftirqd/320:34:173
18948993024,4cyclictest41-21ksoftirqd/321:08:473
18948993024,4cyclictest41-21ksoftirqd/319:56:413
18947993025,3cyclictest33-21ksoftirqd/223:40:132
18947993025,3cyclictest33-21ksoftirqd/223:22:012
18947993025,3cyclictest33-21ksoftirqd/221:44:332
18947993025,3cyclictest33-21ksoftirqd/221:39:492
18947993025,3cyclictest33-21ksoftirqd/200:22:262
18947993014,14cyclictest33-21ksoftirqd/221:05:002
18946993025,3cyclictest25-21ksoftirqd/120:06:501
18946993025,3cyclictest25-21ksoftirqd/100:00:121
18946993024,4cyclictest25-21ksoftirqd/122:22:291
18946993024,3cyclictest25-21ksoftirqd/121:00:001
18946993024,3cyclictest25-21ksoftirqd/121:00:001
18945993024,4cyclictest9-21ksoftirqd/022:43:060
18945993024,4cyclictest9-21ksoftirqd/020:01:000
18945993024,4cyclictest9-21ksoftirqd/019:44:270
18945993024,4cyclictest9-21ksoftirqd/000:15:050
18945993012,15cyclictest1240-21sh00:10:120
139391300,0ptp4l401ktimersoftd/322:57:083
139391300,0ptp4l401ktimersoftd/322:57:083
18948992924,3cyclictest41-21ksoftirqd/323:32:033
18948992924,3cyclictest41-21ksoftirqd/323:04:333
18948992924,3cyclictest41-21ksoftirqd/322:07:373
18948992923,4cyclictest41-21ksoftirqd/322:53:253
18948992923,4cyclictest41-21ksoftirqd/300:06:103
18947992926,2cyclictest33-21ksoftirqd/222:10:202
18947992924,3cyclictest33-21ksoftirqd/220:29:012
18947992924,3cyclictest33-21ksoftirqd/219:58:402
18947992923,4cyclictest33-21ksoftirqd/223:08:112
18947992923,4cyclictest33-21ksoftirqd/222:59:062
18947992923,4cyclictest33-21ksoftirqd/222:59:062
18947992923,4cyclictest33-21ksoftirqd/219:37:472
18947992922,4cyclictest33-21ksoftirqd/200:28:312
18946992924,3cyclictest25-21ksoftirqd/122:40:161
18945992922,5cyclictest9-21ksoftirqd/020:14:520
194532280,2sleep2311rcuc/219:10:152
18948992823,3cyclictest41-21ksoftirqd/323:44:243
18948992823,3cyclictest41-21ksoftirqd/322:34:403
18948992823,3cyclictest41-21ksoftirqd/322:23:523
18948992822,4cyclictest41-21ksoftirqd/319:29:383
18948992821,4cyclictest41-21ksoftirqd/321:41:363
18947992823,3cyclictest33-21ksoftirqd/223:16:472
18947992823,3cyclictest33-21ksoftirqd/200:07:412
18947992822,4cyclictest33-21ksoftirqd/222:42:132
1894599287,18cyclictest8916-21irqrtprio19:55:200
18945992823,3cyclictest9-21ksoftirqd/023:12:430
18945992823,3cyclictest9-21ksoftirqd/021:45:410
18945992822,4cyclictest9-21ksoftirqd/021:33:070
1894599280,24cyclictest30336-21sed19:30:260
18948992722,3cyclictest41-21ksoftirqd/320:57:223
18948992722,3cyclictest41-21ksoftirqd/320:57:223
18947992723,3cyclictest33-21ksoftirqd/223:10:192
1894599279,15cyclictest449-21dbus-daemon00:30:250
1894599278,16cyclictest31123-21switchtime20:40:230
18945992723,3cyclictest9-21ksoftirqd/023:45:120
18945992722,3cyclictest9-21ksoftirqd/022:57:590
18945992722,3cyclictest9-21ksoftirqd/022:57:580
18945992722,3cyclictest9-21ksoftirqd/021:10:200
18947992621,3cyclictest33-21ksoftirqd/223:53:112
18947992620,4cyclictest33-21ksoftirqd/200:16:432
18947992619,4cyclictest33-21ksoftirqd/221:30:082
1894599262,20cyclictest2518-21gnome-shell23:15:580
1894599261,11cyclictest57898rtkit-daemon20:08:400
1894599260,23cyclictest11021-21sed23:20:280
18948992520,3cyclictest41-21ksoftirqd/323:22:333
18948992520,3cyclictest41-21ksoftirqd/300:00:083
1894599251,21cyclictest3569-21/usr/sbin/munin22:00:120
1894599250,22cyclictest25209-21df20:30:140
18948992419,3cyclictest41-21ksoftirqd/322:40:383
1894599241,20cyclictest19320-21df_abs19:10:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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