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2025-11-20 - 12:03
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rackbslot6.osadl.org (updated Thu Nov 20, 2025 00:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3002721590,4sleep3968599cyclictest22:26:113
2285921480,5sleep2967999cyclictest22:16:382
177391930,4ptp4l401ktimersoftd/320:13:573
177391930,4ptp4l401ktimersoftd/320:13:573
154192790,3sleep341-21ksoftirqd/300:35:383
177391680,1ptp4l401ktimersoftd/300:02:203
177391630,1ptp4l401ktimersoftd/301:40:203
177391630,1ptp4l401ktimersoftd/301:40:203
58952580,2sleep20-21swapper/200:24:172
93342564,41sleep00-21swapper/020:13:060
93342564,41sleep00-21swapper/020:13:060
278292540,2sleep20-21swapper/201:24:072
177391540,12ptp4l401ktimersoftd/322:18:383
139042520,3sleep30-21swapper/322:01:213
966899470,4cyclictest13237-21taskset21:58:240
177391450,1ptp4l401ktimersoftd/323:32:553
966899442,4cyclictest0-21swapper/000:56:300
9668994422,19cyclictest9-21ksoftirqd/021:12:090
177152440,2sleep20-21swapper/200:01:292
966899422,34cyclictest0-21swapper/022:21:210
9668994212,26cyclictest21668-21cat00:06:130
177391420,1ptp4l401ktimersoftd/322:39:143
177391420,1ptp4l401ktimersoftd/301:11:303
966899418,29cyclictest227-21systemd-journal01:11:490
966899412,34cyclictest0-21swapper/023:01:230
177391410,1ptp4l401ktimersoftd/322:07:463
177391410,13ptp4l21199-21kworker/3:200:55:143
9685993921,4cyclictest41-21ksoftirqd/320:42:253
9668993911,24cyclictest12798-21sed01:06:420
9668993910,27cyclictest21740-21phc2sys00:41:340
966899390,6cyclictest32116-21apt-get23:41:250
966899390,4cyclictest21030-21grep22:51:270
177391390,0ptp4l401ktimersoftd/321:11:293
966899389,26cyclictest15857-21sendmail22:06:100
966899382,5cyclictest0-21swapper/000:21:260
966899381,4cyclictest0-21swapper/001:16:270
9668993814,21cyclictest30547-21grep00:51:380
9668993813,22cyclictest13022-21grep00:31:390
177391380,1ptp4l401ktimersoftd/322:11:253
177391380,1ptp4l401ktimersoftd/300:49:173
177391380,1ptp4l401ktimersoftd/300:17:563
177391380,15ptp4l401ktimersoftd/321:26:263
966899379,25cyclictest2079-21phc2sys01:31:370
966899379,25cyclictest2079-21phc2sys01:31:370
966899379,24cyclictest9419-21date01:41:150
966899379,24cyclictest9419-21date01:41:150
966899377,7cyclictest11756-21unixbench_multi23:16:380
966899377,26cyclictest29500-21cpuspeed_turbos21:26:250
966899374,10cyclictest7100-21irqrtprio21:46:290
966899372,30cyclictest0-21swapper/022:31:260
9668993711,23cyclictest9603-21cat23:51:330
9668993710,24cyclictest27222-21cat21:21:240
9668993710,23cyclictest27564-21sh23:36:150
177391370,1ptp4l401ktimersoftd/323:46:253
177391370,1ptp4l401ktimersoftd/323:46:253
177391370,1ptp4l401ktimersoftd/323:45:553
177391370,1ptp4l401ktimersoftd/323:03:343
177391370,1ptp4l401ktimersoftd/322:48:563
177391370,1ptp4l401ktimersoftd/320:56:033
177391370,1ptp4l401ktimersoftd/300:42:413
966899367,4cyclictest25370-21irqrtprio21:16:300
966899362,7cyclictest4062-21apt-get21:41:220
966899362,5cyclictest0-21swapper/022:56:240
966899362,4cyclictest0-21swapper/022:46:220
966899362,4cyclictest0-21swapper/022:41:220
966899361,5cyclictest0-21swapper/001:26:260
966899361,4cyclictest0-21swapper/001:21:280
9668993611,22cyclictest14349-21latency_hist20:46:090
9668993610,23cyclictest2107-21gltestperf21:36:300
9668993610,22cyclictest13388-21cat01:46:150
966899360,4cyclictest15758-21ptp4l23:21:350
177391360,1ptp4l401ktimersoftd/323:54:513
177391360,1ptp4l401ktimersoftd/301:24:293
177391360,1ptp4l401ktimersoftd/300:27:583
177391360,0ptp4l401ktimersoftd/322:31:003
177391360,0ptp4l401ktimersoftd/301:10:533
966899359,23cyclictest4875-21irqrtprio23:46:350
966899359,23cyclictest4875-21irqrtprio23:46:350
966899359,23cyclictest18897-21cat22:11:250
966899358,24cyclictest20146-21df21:06:250
966899358,23cyclictest26611-21expr00:11:260
966899357,24cyclictest17607-21switchtime00:36:420
966899351,5cyclictest0-21swapper/021:31:220
9668993511,21cyclictest20797-21diskmemload00:46:520
177391350,1ptp4l401ktimersoftd/323:27:323
177391350,1ptp4l401ktimersoftd/323:17:573
177391350,1ptp4l401ktimersoftd/300:06:423
177391350,13ptp4l401ktimersoftd/321:31:413
177391350,0ptp4l401ktimersoftd/323:22:083
966899349,22cyclictest7953-21mailstats01:01:370
966899349,22cyclictest16290-21/usr/sbin/munin22:06:380
966899348,22cyclictest17489-21acpi21:01:150
966899342,4cyclictest0-21swapper/000:16:250
966899341,5cyclictest1230-21apt-get23:06:260
966899341,29cyclictest1998-21latency_hist22:31:110
966899340,30cyclictest13328-21cat20:36:090
177391340,1ptp4l401ktimersoftd/323:56:223
177391340,1ptp4l401ktimersoftd/301:31:433
177391340,1ptp4l401ktimersoftd/301:31:433
177391340,1ptp4l401ktimersoftd/300:58:373
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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