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2026-04-20 - 08:28
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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 Mon Apr 20, 2026 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1068911030,40ptp4l401ktimersoftd/320:20:063
31542740,4sleep233-21ksoftirqd/221:27:372
266522680,4sleep1205299cyclictest01:37:491
190002650,2sleep20-21swapper/222:01:302
167202600,4sleep1241ktimersoftd/101:27:251
2056995614,19cyclictest16627-21sh00:55:122
75772540,2sleep10-21swapper/123:40:011
19212540,3sleep1205299cyclictest22:26:381
99362530,2sleep20-21swapper/223:08:222
206799534,17cyclictest10251-21cat22:36:243
17292534,38sleep00-21swapper/020:18:210
73062510,1sleep20-21swapper/222:31:492
64122490,1sleep20-21swapper/200:11:262
2056994812,24cyclictest10179-21sh00:47:242
2056994711,20cyclictest16585-21sh23:48:072
2056994511,20cyclictest30653-21sh23:30:412
231562440,2sleep20-21swapper/201:35:092
205699441,3cyclictest13388-21chrt00:17:122
205699430,2cyclictest0-21swapper/200:33:172
205699421,25cyclictest23553-21ssh22:49:242
205699421,25cyclictest22338-21/usr/sbin/munin23:21:312
206799412,12cyclictest18220-21cpu22:01:243
205699412,33cyclictest1565-21apt-get00:06:252
205699411,24cyclictest1059-21taskset00:38:242
106891410,1ptp4l401ktimersoftd/322:47:463
106891410,0ptp4l401ktimersoftd/300:04:503
205699402,30cyclictest16825-21apt-get23:16:232
205699400,24cyclictest21121-21taskset00:59:362
205699392,31cyclictest3829-21apt-get23:36:252
205699391,33cyclictest3098-21apt-get00:41:252
106891390,1ptp4l401ktimersoftd/323:34:413
106891390,1ptp4l401ktimersoftd/301:21:563
106891390,1ptp4l401ktimersoftd/301:13:093
106891390,1ptp4l401ktimersoftd/301:13:093
106891390,1ptp4l401ktimersoftd/300:43:313
106891390,1ptp4l401ktimersoftd/300:32:283
106891390,1ptp4l401ktimersoftd/300:21:213
205699386,27cyclictest11991-21ssh23:11:232
205699383,27cyclictest16107-21apt-get00:21:262
205699382,29cyclictest22474-21apt-get01:01:272
205699382,28cyclictest29071-21apt-get01:41:292
106891380,1ptp4l401ktimersoftd/322:44:183
106891380,1ptp4l401ktimersoftd/301:45:333
106891380,1ptp4l401ktimersoftd/300:53:183
106891380,1ptp4l401ktimersoftd/300:39:203
106891380,1ptp4l401ktimersoftd/300:13:233
326742374,19sleep1326-21smartctl20:16:251
205699372,29cyclictest0-21swapper/221:21:222
205699372,26cyclictest7726-21apt-get20:31:222
205699371,20cyclictest0-21swapper/201:25:252
106891370,1ptp4l401ktimersoftd/323:57:273
106891370,1ptp4l401ktimersoftd/323:37:133
106891370,1ptp4l401ktimersoftd/323:24:443
106891370,1ptp4l401ktimersoftd/323:12:233
106891370,1ptp4l401ktimersoftd/323:04:163
106891370,1ptp4l401ktimersoftd/301:32:283
106891370,1ptp4l401ktimersoftd/301:17:323
106891370,1ptp4l401ktimersoftd/301:07:433
106891370,1ptp4l401ktimersoftd/301:07:433
106891370,1ptp4l401ktimersoftd/301:04:063
106891370,1ptp4l401ktimersoftd/301:00:023
106891370,1ptp4l401ktimersoftd/300:47:493
106891370,1ptp4l401ktimersoftd/300:16:233
106891370,1ptp4l401ktimersoftd/300:07:083
205699362,27cyclictest6134-21apt-get21:36:232
106891360,1ptp4l401ktimersoftd/323:51:233
106891360,1ptp4l401ktimersoftd/323:16:503
106891360,1ptp4l401ktimersoftd/322:23:053
205699354,25cyclictest8499-21apt-get21:41:232
205699353,25cyclictest28005-21apt-get22:21:232
205699353,24cyclictest4668-21apt-get01:16:292
205699352,25cyclictest25023-21apt-get22:51:242
205699352,25cyclictest11077-21apt-get21:46:232
2056993513,18cyclictest32334-21grep01:11:302
2056993513,18cyclictest32334-21grep01:11:302
106891350,0ptp4l401ktimersoftd/321:05:073
106891350,0ptp4l401ktimersoftd/320:52:593
106891350,0ptp4l401ktimersoftd/301:36:293
106891350,0ptp4l401ktimersoftd/301:27:363
205699343,25cyclictest29054-21apt-get21:16:212
205699343,24cyclictest25310-21apt-get22:16:232
205699342,27cyclictest0-21swapper/221:51:222
205699342,27cyclictest0-21swapper/220:36:212
205699342,25cyclictest408-21apt-get22:26:242
2056993414,17cyclictest16033-21expr21:56:242
2056993413,18cyclictest29373-21expr00:01:282
205699341,30cyclictest0-21swapper/222:56:272
205699341,29cyclictest1493-21apt-get01:46:312
106891340,1ptp4l401ktimersoftd/322:34:173
106891340,1ptp4l401ktimersoftd/301:47:163
206799335,17cyclictest9835-21snmp_o5powerctl21:41:363
205699335,24cyclictest13477-21cat23:46:132
205699335,24cyclictest10696-21grep22:36:292
205699332,26cyclictest3770-21apt-get21:31:242
205699332,26cyclictest0-21swapper/201:26:272
205699332,24cyclictest31403-21apt-get23:31:272
205699332,24cyclictest24223-21apt-get01:36:302
2056993315,15cyclictest3866-21unixbench-2d20:21:362
2056993313,17cyclictest27461-21sed21:11:292
205699330,5cyclictest20587-21sort20:56:282
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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