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2026-08-10 - 07:08
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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 Aug 10, 2026 00:45:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
138591208163,23phc2sys0-21swapper/319:09:223
299622201168,22sleep10-21swapper/119:07:351
299062201169,22sleep20-21swapper/219:06:512
298082201167,22sleep00-21swapper/019:05:370
1866621400,5sleep33044299cyclictest20:55:163
138491660,1ptp4l401ktimersoftd/319:50:033
47622650,9sleep13044099cyclictest21:30:241
3044199641,21cyclictest4998-21switchtime20:25:252
3044199601,28cyclictest0-21swapper/219:25:192
3044199600,24cyclictest13433-21awk19:40:162
138491580,1ptp4l401ktimersoftd/320:15:163
3044199570,23cyclictest28506-21gdbus23:25:012
3044199570,21cyclictest8759-21irqrtprio19:30:192
3044199570,21cyclictest8759-21irqrtprio19:30:192
3044199561,19cyclictest0-21swapper/222:50:242
3044199551,27cyclictest21259-21/usr/sbin/munin00:15:272
30442994843,3cyclictest26503-21fschecks_count21:10:193
3044199481,18cyclictest0-21swapper/220:15:262
30439994731,3cyclictest9-21ksoftirqd/021:10:140
3014824633,7sleep20-21swapper/219:10:012
3044199451,2cyclictest0-21swapper/219:45:232
138491450,1ptp4l401ktimersoftd/321:29:283
138491440,0ptp4l401ktimersoftd/300:15:113
138491430,1ptp4l401ktimersoftd/322:33:543
135191430,1getstats0-21swapper/322:21:393
3044199421,39cyclictest0-21swapper/223:00:242
3044199420,39cyclictest19523-21meminfo20:55:232
138491420,0ptp4l401ktimersoftd/319:45:243
3044199411,16cyclictest12819-21sshd21:45:332
30440994130,4cyclictest25-21ksoftirqd/120:04:511
138491410,1ptp4l401ktimersoftd/320:50:113
138491410,0ptp4l401ktimersoftd/323:14:453
138491410,0ptp4l401ktimersoftd/322:25:213
134991410,2getstats0-21swapper/320:05:003
138491400,0ptp4l401ktimersoftd/319:30:253
138491400,0ptp4l401ktimersoftd/319:30:253
30441993927,10cyclictest33-21ksoftirqd/222:04:532
134991390,2getstats0-21swapper/320:35:003
134991390,2getstats0-21swapper/320:35:003
30442993833,3cyclictest41-21ksoftirqd/323:45:013
30442993832,4cyclictest41-21ksoftirqd/300:33:203
3044199380,17cyclictest0-21swapper/220:10:282
30442993732,3cyclictest41-21ksoftirqd/323:17:573
30441993731,4cyclictest33-21ksoftirqd/219:24:242
3044199370,22cyclictest2485-21tr20:20:242
134991370,2getstats0-21swapper/319:30:003
30442993631,3cyclictest41-21ksoftirqd/322:39:593
30442993630,4cyclictest41-21ksoftirqd/323:33:343
30442993630,4cyclictest41-21ksoftirqd/323:33:343
30442993629,4cyclictest41-21ksoftirqd/300:27:263
30441993631,3cyclictest33-21ksoftirqd/221:39:492
30441993631,3cyclictest33-21ksoftirqd/220:50:092
30441993630,4cyclictest33-21ksoftirqd/221:57:132
30441993630,4cyclictest33-21ksoftirqd/200:38:492
30441993630,4cyclictest33-21ksoftirqd/200:38:492
30441993629,4cyclictest33-21ksoftirqd/200:10:042
3044199361,21cyclictest0-21swapper/223:15:252
30440993630,4cyclictest25-21ksoftirqd/121:58:271
30440993630,4cyclictest25-21ksoftirqd/120:10:211
30439993631,3cyclictest9-21ksoftirqd/020:20:110
30439993630,4cyclictest9-21ksoftirqd/023:33:590
30439993630,4cyclictest9-21ksoftirqd/023:33:590
30439993629,4cyclictest9-21ksoftirqd/022:18:130
138491360,0ptp4l401ktimersoftd/300:37:023
138491360,0ptp4l401ktimersoftd/300:37:023
30442993530,3cyclictest41-21ksoftirqd/322:15:103
30442993529,4cyclictest41-21ksoftirqd/322:41:503
30442993529,4cyclictest41-21ksoftirqd/319:12:393
30441993529,4cyclictest33-21ksoftirqd/221:12:482
30441993528,4cyclictest33-21ksoftirqd/200:32:262
30441993528,4cyclictest33-21ksoftirqd/200:26:212
30440993529,4cyclictest25-21ksoftirqd/122:10:401
30440993529,4cyclictest25-21ksoftirqd/120:46:511
30440993529,4cyclictest25-21ksoftirqd/100:14:111
30440993528,5cyclictest25-21ksoftirqd/121:00:431
3044099350,2cyclictest121rcu_preempt19:32:451
3044099350,2cyclictest121rcu_preempt19:32:451
30439993530,3cyclictest9-21ksoftirqd/000:10:110
30439993529,4cyclictest9-21ksoftirqd/023:03:100
30439993529,4cyclictest9-21ksoftirqd/022:39:310
30439993529,4cyclictest9-21ksoftirqd/021:51:130
30439993529,4cyclictest9-21ksoftirqd/021:18:480
30439993529,4cyclictest9-21ksoftirqd/020:57:010
30439993529,4cyclictest9-21ksoftirqd/020:36:070
30439993528,5cyclictest9-21ksoftirqd/000:15:400
30439993528,4cyclictest9-21ksoftirqd/020:30:380
30439993528,4cyclictest9-21ksoftirqd/020:30:380
30439993520,5cyclictest9-21ksoftirqd/019:32:460
30439993520,5cyclictest9-21ksoftirqd/019:32:450
138491350,0ptp4l401ktimersoftd/322:53:133
30442993429,3cyclictest41-21ksoftirqd/321:54:573
30442993429,3cyclictest41-21ksoftirqd/321:30:143
30442993428,4cyclictest41-21ksoftirqd/323:48:273
30442993428,4cyclictest41-21ksoftirqd/322:03:043
30442993428,4cyclictest41-21ksoftirqd/321:38:453
30442993428,4cyclictest41-21ksoftirqd/321:07:523
30442993428,4cyclictest41-21ksoftirqd/320:41:283
30442993428,4cyclictest41-21ksoftirqd/319:59:483
30442993427,4cyclictest41-21ksoftirqd/323:22:033
3044199343,17cyclictest0-21swapper/222:35:182
30441993428,4cyclictest33-21ksoftirqd/223:48:212
30441993428,4cyclictest33-21ksoftirqd/221:40:122
30441993428,4cyclictest33-21ksoftirqd/221:40:122
30441993428,4cyclictest33-21ksoftirqd/220:32:162
30441993428,4cyclictest33-21ksoftirqd/220:32:162
30441993428,4cyclictest33-21ksoftirqd/200:06:472
3044199340,16cyclictest0-21swapper/222:40:242
30440993430,2cyclictest223-21systemd-journal23:15:031
30440993429,3cyclictest25-21ksoftirqd/123:44:591
30440993429,3cyclictest25-21ksoftirqd/100:27:581
30440993428,4cyclictest25-21ksoftirqd/123:46:121
30440993428,4cyclictest25-21ksoftirqd/123:20:311
30440993428,4cyclictest25-21ksoftirqd/122:59:061
30440993428,4cyclictest25-21ksoftirqd/122:42:481
30440993428,4cyclictest25-21ksoftirqd/120:54:221
30440993428,4cyclictest25-21ksoftirqd/119:41:121
30440993428,4cyclictest25-21ksoftirqd/100:08:061
30440993427,4cyclictest25-21ksoftirqd/123:09:251
30439993429,3cyclictest9-21ksoftirqd/020:03:310
30439993428,4cyclictest9-21ksoftirqd/023:45:380
30439993428,4cyclictest9-21ksoftirqd/022:58:330
30439993428,4cyclictest9-21ksoftirqd/022:53:230
30439993428,4cyclictest9-21ksoftirqd/022:40:400
30439993428,4cyclictest9-21ksoftirqd/021:48:530
30439993428,4cyclictest9-21ksoftirqd/021:32:040
30439993428,4cyclictest9-21ksoftirqd/020:43:010
30439993428,4cyclictest9-21ksoftirqd/019:16:120
30439993427,4cyclictest9-21ksoftirqd/000:20:530
30442993328,3cyclictest41-21ksoftirqd/320:27:413
30442993327,4cyclictest41-21ksoftirqd/323:58:093
30442993327,4cyclictest41-21ksoftirqd/323:54:003
30442993327,4cyclictest41-21ksoftirqd/323:00:483
30442993327,4cyclictest41-21ksoftirqd/322:05:363
30442993327,4cyclictest41-21ksoftirqd/320:21:023
30441993328,3cyclictest33-21ksoftirqd/219:59:362
30441993327,4cyclictest33-21ksoftirqd/222:14:302
30440993328,3cyclictest25-21ksoftirqd/122:00:591
30440993327,4cyclictest25-21ksoftirqd/122:25:111
30440993327,4cyclictest25-21ksoftirqd/119:51:001
30440993327,4cyclictest25-21ksoftirqd/119:11:161
30440993327,4cyclictest25-21ksoftirqd/100:39:111
30440993327,4cyclictest25-21ksoftirqd/100:39:111
30440993327,3cyclictest25-21ksoftirqd/122:36:541
30440993327,3cyclictest25-21ksoftirqd/119:59:501
30440993326,5cyclictest25-21ksoftirqd/122:24:561
30440993326,4cyclictest25-21ksoftirqd/123:55:151
30439993328,3cyclictest9-21ksoftirqd/022:04:250
30439993328,3cyclictest9-21ksoftirqd/020:46:500
30439993327,4cyclictest9-21ksoftirqd/022:27:160
30439993327,4cyclictest9-21ksoftirqd/022:21:100
30439993327,4cyclictest9-21ksoftirqd/019:28:430
30439993327,4cyclictest9-21ksoftirqd/019:20:330
30439993327,4cyclictest9-21ksoftirqd/019:13:550
30439993327,4cyclictest9-21ksoftirqd/000:36:460
30439993327,4cyclictest9-21ksoftirqd/000:36:450
30439993327,4cyclictest9-21ksoftirqd/000:00:260
30439993316,4cyclictest9-21ksoftirqd/023:20:110
138491330,0ptp4l401ktimersoftd/300:10:123
30442993227,3cyclictest41-21ksoftirqd/322:56:183
30442993226,4cyclictest41-21ksoftirqd/323:25:363
30442993226,4cyclictest41-21ksoftirqd/300:23:243
30442993226,4cyclictest41-21ksoftirqd/300:09:483
30441993226,4cyclictest33-21ksoftirqd/221:50:472
30441993226,3cyclictest33-21ksoftirqd/222:58:472
30441993225,4cyclictest33-21ksoftirqd/220:38:342
30441993212,17cyclictest19666-21processes19:50:242
30440993227,3cyclictest25-21ksoftirqd/120:42:591
30440993226,4cyclictest25-21ksoftirqd/122:08:071
30440993226,4cyclictest25-21ksoftirqd/120:59:191
30440993226,4cyclictest25-21ksoftirqd/120:32:581
30440993226,4cyclictest25-21ksoftirqd/120:32:581
30440993226,4cyclictest25-21ksoftirqd/100:04:011
30440993225,4cyclictest25-21ksoftirqd/121:28:071
30439993227,3cyclictest9-21ksoftirqd/021:35:330
30439993227,3cyclictest9-21ksoftirqd/021:09:410
30439993226,4cyclictest9-21ksoftirqd/023:51:280
30439993226,4cyclictest9-21ksoftirqd/023:28:300
30439993226,4cyclictest9-21ksoftirqd/021:40:500
30439993226,4cyclictest9-21ksoftirqd/021:40:500
30439993226,4cyclictest9-21ksoftirqd/020:18:180
30439993226,4cyclictest9-21ksoftirqd/000:27:190
30439993225,5cyclictest9-21ksoftirqd/023:39:200
138491320,11ptp4l0-21swapper/323:39:593
138491320,10ptp4l0-21swapper/323:06:533
138491320,0ptp4l401ktimersoftd/321:44:143
138491320,0ptp4l401ktimersoftd/321:44:143
138491320,0ptp4l401ktimersoftd/321:21:453
30442993126,3cyclictest41-21ksoftirqd/320:12:403
30442993125,4cyclictest41-21ksoftirqd/322:48:483
30442993125,4cyclictest41-21ksoftirqd/321:16:263
30442993125,4cyclictest41-21ksoftirqd/319:38:213
30441993126,3cyclictest33-21ksoftirqd/220:00:552
30441993125,4cyclictest33-21ksoftirqd/200:24:562
30441993125,3cyclictest33-21ksoftirqd/200:02:502
30440993126,3cyclictest25-21ksoftirqd/123:14:231
30440993126,3cyclictest25-21ksoftirqd/121:46:001
30440993126,3cyclictest25-21ksoftirqd/119:17:301
30440993125,4cyclictest25-21ksoftirqd/122:35:001
30440993125,4cyclictest25-21ksoftirqd/120:15:301
30440993125,4cyclictest25-21ksoftirqd/119:46:421
30440993124,4cyclictest25-21ksoftirqd/121:14:561
3044099312,27cyclictest0-21swapper/123:01:321
30439993124,5cyclictest9-21ksoftirqd/019:40:010
138491310,0ptp4l401ktimersoftd/321:03:383
138491310,0ptp4l401ktimersoftd/320:39:043
138491310,0ptp4l401ktimersoftd/319:19:093
30442993025,3cyclictest41-21ksoftirqd/321:57:183
30442993024,4cyclictest41-21ksoftirqd/319:42:103
30441993026,3cyclictest33-21ksoftirqd/222:26:142
30441993025,3cyclictest33-21ksoftirqd/223:51:222
30441993025,3cyclictest33-21ksoftirqd/221:34:062
30441993024,4cyclictest33-21ksoftirqd/221:01:262
30441993024,4cyclictest33-21ksoftirqd/220:44:242
30441993013,15cyclictest30993-21/usr/sbin/munin23:30:212
30441993013,15cyclictest30993-21/usr/sbin/munin23:30:202
3044199301,25cyclictest4890-21netstat23:40:212
30441993012,15cyclictest12951-21expr23:55:262
30440993025,3cyclictest25-21ksoftirqd/122:48:591
30440993025,3cyclictest25-21ksoftirqd/120:20:111
30440993024,4cyclictest25-21ksoftirqd/123:52:341
30440993024,4cyclictest25-21ksoftirqd/120:36:081
30440993024,4cyclictest25-21ksoftirqd/120:29:061
30440993024,4cyclictest25-21ksoftirqd/120:05:121
30440993024,4cyclictest25-21ksoftirqd/119:27:441
30440993024,4cyclictest25-21ksoftirqd/100:19:251
30440993022,5cyclictest25-21ksoftirqd/122:18:461
30439993025,3cyclictest9-21ksoftirqd/022:07:460
30439993025,3cyclictest9-21ksoftirqd/021:29:350
30439993025,3cyclictest9-21ksoftirqd/020:13:580
30439993024,4cyclictest9-21ksoftirqd/023:10:410
30439993024,4cyclictest9-21ksoftirqd/021:57:390
30439993024,4cyclictest9-21ksoftirqd/000:32:160
30439993023,4cyclictest9-21ksoftirqd/022:48:460
30442992924,3cyclictest41-21ksoftirqd/320:45:193
30442992924,3cyclictest41-21ksoftirqd/300:03:513
30442992923,4cyclictest41-21ksoftirqd/321:46:433
30442992922,4cyclictest41-21ksoftirqd/322:11:513
30441992924,3cyclictest33-21ksoftirqd/222:08:162
30441992924,3cyclictest33-21ksoftirqd/221:24:272
30441992924,3cyclictest33-21ksoftirqd/220:09:502
30440992924,3cyclictest25-21ksoftirqd/121:54:061
30440992923,4cyclictest25-21ksoftirqd/121:42:441
30440992923,4cyclictest25-21ksoftirqd/121:42:441
30440992923,4cyclictest25-21ksoftirqd/121:40:001
30439992923,4cyclictest9-21ksoftirqd/020:51:120
138491290,0ptp4l401ktimersoftd/319:22:593
3044199281,24cyclictest26456-21irqrtprio22:15:172
3044199281,24cyclictest2611-21grep22:30:252
30441992810,15cyclictest23549-21/usr/sbin/munin21:05:132
3044199280,26cyclictest30700-21sh21:20:012
3044199280,24cyclictest20853-21cpuspeed_turbos23:10:132
30440992822,4cyclictest25-21ksoftirqd/121:20:401
30440992822,4cyclictest25-21ksoftirqd/121:09:221
30439992823,3cyclictest9-21ksoftirqd/023:07:380
30439992823,3cyclictest9-21ksoftirqd/022:31:450
30439992823,3cyclictest9-21ksoftirqd/020:29:050
30439992823,3cyclictest9-21ksoftirqd/019:41:560
30439992823,3cyclictest9-21ksoftirqd/000:05:160
30439992822,4cyclictest9-21ksoftirqd/019:58:000
30439992821,4cyclictest9-21ksoftirqd/020:06:100
30441992721,3cyclictest33-21ksoftirqd/223:23:562
3044199271,24cyclictest461-21dbus-daemon23:40:002
3044199271,23cyclictest3021-21ls19:20:012
3044199271,23cyclictest223-21systemd-journal21:29:472
3044199270,24cyclictest18331-21ls23:05:132
3044199270,24cyclictest13724-21df20:45:142
30440992722,3cyclictest25-21ksoftirqd/119:36:531
30440992722,3cyclictest25-21ksoftirqd/119:21:171
30440992720,5cyclictest25-21ksoftirqd/100:34:061
30439992721,4cyclictest9-21ksoftirqd/022:12:270
3044199261,22cyclictest8326-21apt-key22:45:022
3044199261,22cyclictest28780-21/usr/sbin/munin22:20:172
3044199261,22cyclictest11012-21fschecks_time19:35:182
30440992620,3cyclictest25-21ksoftirqd/123:30:091
30440992620,3cyclictest25-21ksoftirqd/123:30:091
30439992621,3cyclictest9-21ksoftirqd/019:53:140
30440992520,3cyclictest25-21ksoftirqd/122:50:461
30440992520,3cyclictest25-21ksoftirqd/121:18:241
30439992520,3cyclictest9-21ksoftirqd/023:44:580
30439992520,3cyclictest9-21ksoftirqd/019:45:110
30439992419,3cyclictest9-21ksoftirqd/023:15:460
138491240,1ptp4l401ktimersoftd/320:05:033
30440992317,4cyclictest25-21ksoftirqd/100:21:061
30439992318,3cyclictest9-21ksoftirqd/023:55:100
30439992318,3cyclictest9-21ksoftirqd/021:23:570
30440992217,3cyclictest25-21ksoftirqd/123:39:481
30440992114,4cyclictest25-21ksoftirqd/123:25:291
30439991913,4cyclictest9-21ksoftirqd/021:01:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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