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2026-06-26 - 15:49
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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 Fri Jun 26, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2744821740,5sleep22102499cyclictest14:28:352
1476221740,2sleep32103399cyclictest13:42:073
1068911180,8ptp4l18424-21kworker/3:108:57:353
84182820,1sleep00-21swapper/013:34:410
106891720,1ptp4l401ktimersoftd/312:05:423
206522680,2sleep30-21swapper/313:14:013
206052664,10sleep00-21swapper/008:54:290
5562640,3sleep09-21ksoftirqd/010:28:410
158402630,2sleep00-21swapper/011:32:160
21013996216,10cyclictest2225-21apt-get11:18:420
106891620,1ptp4l401ktimersoftd/310:48:593
255302610,4sleep233-21ksoftirqd/213:53:342
21013996115,12cyclictest23458-21basename14:23:520
21013996112,16cyclictest30365-21/usr/sbin/munin12:18:510
165672610,2sleep00-21swapper/014:16:490
324642600,5sleep332468-21needreboot12:53:533
21013995913,11cyclictest25220-21ssh11:08:450
21013995812,11cyclictest20891-21runrttasks13:14:060
21013995712,15cyclictest20154-21ssh12:41:550
21013995712,14cyclictest12801-21ssh12:01:470
21013995712,14cyclictest11070-21ssh13:04:280
21013995712,12cyclictest22416-21grep08:59:020
21013995710,17cyclictest5888-21ssh12:28:040
21013995612,11cyclictest12211-21latency_hist10:53:310
21013995611,16cyclictest14581-21diskmemload11:49:420
21013995611,14cyclictest24952-21ssh11:40:420
21013995611,14cyclictest14156-21ssh12:35:250
234342550,2sleep00-21swapper/010:08:410
21013995512,15cyclictest23832-21ssh13:18:430
21013995512,13cyclictest4971-21ssh13:32:080
21013995511,16cyclictest14581-21diskmemload11:24:420
21013995511,14cyclictest20905-21ssh14:20:520
21013995511,14cyclictest19002-21ssh13:46:010
21013995511,14cyclictest19002-21ssh13:46:010
21013995511,14cyclictest11008-21ssh14:10:450
21013995511,12cyclictest6601-21apt-get12:28:440
2101399549,19cyclictest0-21swapper/009:03:280
2101399549,16cyclictest0-21swapper/013:58:530
2101399549,16cyclictest0-21swapper/009:23:580
21013995414,10cyclictest14581-21diskmemload12:48:280
21013995413,8cyclictest22269-21ssh12:10:480
21013995412,9cyclictest4565-21/usr/sbin/munin14:03:560
21013995412,11cyclictest14640-21hddtemp_smartct13:08:500
21013995411,8cyclictest24285-21apt-get12:13:430
106891540,1ptp4l401ktimersoftd/312:50:113
253622530,3sleep32103399cyclictest14:25:073
228612530,2sleep30-21swapper/311:05:533
21013995312,17cyclictest17867-21/usr/sbin/munin11:33:490
21013995312,13cyclictest17248-21ssh10:59:410
21013995312,11cyclictest14581-21diskmemload11:58:290
21013995311,8cyclictest7758-21apt-get10:43:420
21013995311,8cyclictest3765-21apt-get09:28:400
21013995311,8cyclictest18410-21apt-get09:58:410
21013995311,8cyclictest18410-21apt-get09:58:410
21013995311,17cyclictest14581-21diskmemload11:14:260
21013995310,9cyclictest26444-21apt-get12:48:450
106891530,1ptp4l401ktimersoftd/313:20:143
21013995212,17cyclictest14581-21diskmemload11:05:580
21013995211,8cyclictest5393-21apt-get10:38:420
21013995211,7cyclictest31433-21apt-get09:18:410
21013995210,8cyclictest11082-21apt-get13:38:440
291942510,1sleep20-21swapper/211:44:352
21013995112,9cyclictest31026-21ssh11:47:430
21013995112,9cyclictest28376-21df_inode10:18:440
21013995111,16cyclictest5821-21apt-get09:33:320
21013995110,11cyclictest14581-21diskmemload12:58:530
77962500,2sleep20-21swapper/211:23:472
21013995012,8cyclictest27086-21python10:13:540
21013995012,15cyclictest14581-21diskmemload12:04:560
21013995011,8cyclictest31811-21mailstats10:23:530
21013995011,16cyclictest13596-21/usr/sbin/munin09:48:470
190932500,2sleep10-21swapper/111:02:501
21033994938,5cyclictest41-21ksoftirqd/312:43:443
21033994936,6cyclictest41-21ksoftirqd/311:48:443
21013994912,15cyclictest30700-21chrt13:24:050
21013994911,10cyclictest25028-21ssh13:52:520
21033994835,6cyclictest41-21ksoftirqd/313:08:463
21013994810,8cyclictest8706-21apt-get09:38:390
21013994810,15cyclictest1064-21ssh12:54:340
2101399479,8cyclictest14581-21diskmemload13:57:280
21013994711,8cyclictest26957-21diskstats09:08:430
106891470,2ptp4l23299-21kworker/3:114:04:553
106891470,1ptp4l401ktimersoftd/311:17:583
21013994511,8cyclictest21255-21diskstats10:03:430
21013994511,8cyclictest21255-21diskstats10:03:430
106891440,1ptp4l401ktimersoftd/310:10:593
21013994211,8cyclictest16427-21perl09:53:450
193492413,23sleep219440-21if_ens308:53:472
21033993926,6cyclictest41-21ksoftirqd/312:08:433
106891390,1ptp4l401ktimersoftd/314:03:103
106891390,1ptp4l401ktimersoftd/311:32:123
106891390,1ptp4l401ktimersoftd/311:11:243
106891390,14ptp4l401ktimersoftd/311:44:303
21033993832,4cyclictest41-21ksoftirqd/312:38:333
106891380,1ptp4l401ktimersoftd/313:33:343
106891380,1ptp4l401ktimersoftd/313:24:083
106891380,1ptp4l401ktimersoftd/311:55:273
106891380,1ptp4l401ktimersoftd/311:03:053
106891380,1ptp4l401ktimersoftd/310:03:543
106891380,1ptp4l401ktimersoftd/310:03:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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