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2025-11-08 - 10:06
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot2.osadl.org (updated Sat Nov 08, 2025 00:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
70884823040,4chrt708846-21df00:30:150
65300422590,2sleep0653002-21ntp_kernel_err21:45:430
66204722520,3chrt662046-21sed22:11:580
63932822520,3chrt639326-21df21:05:120
69068322510,4chrt690674-21ntp_states23:36:260
63523722480,4chrt635238-21awk20:50:230
70418722390,3chrt704184-21ntpq00:16:190
62578922380,2chrt625758-21ntp_states20:16:060
65133522330,3chrt651319-21ntpq21:40:490
68536822140,2sleep0685369-21/usr/sbin/munin23:20:410
69191522080,3sleep0691916-21ssh23:40:180
60698999207178,17cyclictest678882-21kworker/u2:023:10:040
67368022050,2sleep0673681-21collect222:46:230
60698999201171,18cyclictest641754-21kworker/u2:321:21:350
65809222000,2sleep0658093-21missed_timers22:00:410
66845621980,3chrt668457-21ssh22:30:580
67311621970,2sleep0673119-21wc22:45:120
69612121930,2sleep0696123-21grep23:52:000
66788421890,3sleep0667885-21sh22:30:010
60698999188160,17cyclictest641754-21kworker/u2:321:25:290
60698999187158,18cyclictest671035-21kworker/u2:323:01:330
60698999187145,18cyclictest618609-21kworker/u2:119:55:030
60698999186156,19cyclictest706951-21kworker/u2:100:40:080
65031821850,3sleep0650319-21sh21:37:410
60698999185155,19cyclictest84-21jbd2/mmcblk0p2-00:00:040
62116421820,2sleep0621167-21grep20:00:140
68693821810,4chrt686934-21ssh23:25:320
60698999180152,18cyclictest641754-21kworker/u2:321:55:070
62695021770,4chrt626953-21latency20:20:260
60698999177148,18cyclictest704666-21kworker/u2:000:30:090
60698999176148,17cyclictest691468-21kworker/u2:023:50:040
60698999176147,18cyclictest702430-21kworker/u2:200:21:570
60698999174145,19cyclictest689600-21kworker/u2:323:35:060
60698999174145,17cyclictest604686-21kworker/u2:019:25:050
60698999174144,19cyclictest604686-21kworker/u2:019:35:050
60698999172143,18cyclictest676007-21kworker/u2:222:56:580
60698999172143,18cyclictest636773-21kworker/u2:221:05:020
64813821700,4chrt648137-21/usr/sbin/munin21:31:390
60698999170139,20cyclictest683781-21kworker/u2:123:20:100
60698999170135,23cyclictest698492-40ogrotate00:00:300
60698999170133,27cyclictest631737-21kworker/u2:220:40:050
60698999169138,19cyclictest604686-21kworker/u2:019:20:050
67008421670,5chrt670079-21ntpq22:35:440
60698999167137,19cyclictest596805-21kworker/u2:219:15:060
66312121650,4chrt663123-21cut22:15:350
60698999165135,19cyclictest662282-21kworker/u2:322:21:570
60698999164135,18cyclictest628412-21kworker/u2:220:30:050
60698999164133,18cyclictest604686-21kworker/u2:019:36:190
60698999163135,18cyclictest654132-21kworker/u2:021:55:320
60698999162125,25cyclictest636773-21kworker/u2:222:05:430
60698999158130,17cyclictest633553-21kworker/u2:020:50:060
60698999158129,18cyclictest616831-21kworker/u2:219:46:190
60698999156125,19cyclictest622393-21kworker/u2:120:10:030
60698999155125,18cyclictest604686-21kworker/u2:019:45:020
60698999153125,17cyclictest691468-21kworker/u2:000:05:310
60698999153123,19cyclictest628412-21kworker/u2:220:30:390
60698999153122,20cyclictest29-21kswapd000:10:290
60698999152123,19cyclictest671035-21kworker/u2:323:11:240
60698999147117,19cyclictest664068-21kworker/u2:122:51:240
60698999146117,18cyclictest641754-21kworker/u2:321:15:160
60698999146117,18cyclictest636773-21kworker/u2:221:15:010
60698999145118,17cyclictest634959-21kworker/u2:121:00:070
60698999144116,17cyclictest624223-21kworker/u2:220:11:170
60698999144116,17cyclictest609802-21kworker/u2:119:26:170
60698999134105,17cyclictest604686-21kworker/u2:019:55:310
6069899912999,19cyclictest629851-21kworker/u2:120:40:280
6069899910780,17cyclictest596805-21kworker/u2:219:10:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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