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2026-04-16 - 14:40
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack5slot2.osadl.org (updated Thu Apr 16, 2026 12:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13502202187,11sleep10-21swapper/107:08:151
11652193178,11sleep30-21swapper/307:05:543
14262187168,14sleep00-21swapper/007:09:150
14602173155,13sleep20-21swapper/207:09:422
254512430,0sleep10-21swapper/110:41:541
53522120,0sleep10-21swapper/111:04:121
166399102,4cyclictest23673-21awk10:10:000
166399102,4cyclictest22121-21munin-run07:50:000
16639970,3cyclictest19653-21munin-run07:45:010
7719260,1sleep07722-21cpuspeed07:20:110
16779961,4cyclictest0-21swapper/309:15:113
16729960,5cyclictest29169-21apt-get11:00:022
16729960,5cyclictest27313-21apt-get09:40:022
10621260,0sleep30-21swapper/309:47:153
16779953,1cyclictest0-21swapper/309:40:013
16779951,2cyclictest0-21swapper/310:40:123
16779951,2cyclictest0-21swapper/309:30:123
16779951,1cyclictest0-21swapper/311:30:113
16779950,5cyclictest0-21swapper/309:53:133
16779950,4cyclictest20724-21sh10:24:153
16779950,0cyclictest0-21swapper/310:04:073
16729950,5cyclictest0-21swapper/212:05:112
16729950,5cyclictest0-21swapper/208:20:132
16729950,5cyclictest0-21swapper/208:15:122
16729950,0cyclictest0-21swapper/211:15:512
16689955,0cyclictest0-21swapper/107:30:111
16639950,5cyclictest29693-21diskmemload10:48:290
16639950,5cyclictest0-21swapper/012:25:220
16639950,5cyclictest0-21swapper/012:21:350
16639950,5cyclictest0-21swapper/012:17:490
16639950,5cyclictest0-21swapper/011:54:060
16639950,0cyclictest0-21swapper/012:09:400
28757240,0sleep00-21swapper/011:30:410
16779943,1cyclictest9073-21cat10:50:143
16779943,1cyclictest57150irq/125-eth012:05:123
16779943,1cyclictest16299-21proc_pri07:35:203
16779943,1cyclictest12280-21tr11:55:113
16779943,1cyclictest12280-21tr11:55:113
16779942,2cyclictest0-21swapper/310:18:333
16779942,1cyclictest0-21swapper/308:30:123
16779941,3cyclictest802-21snmpd08:07:263
16779941,2cyclictest0-21swapper/311:15:123
16779940,4cyclictest8865-21ntp_states11:05:183
16779940,4cyclictest2734-21if_eth107:10:143
16779940,4cyclictest26930-21ssh09:24:123
16779940,4cyclictest19651-21irqstats12:30:153
16779940,4cyclictest19486-21tr10:55:143
16779940,4cyclictest17207-21ntp_states11:25:193
16779940,4cyclictest16362-21ntp_states08:40:163
16779940,4cyclictest0-21swapper/312:28:083
16779940,4cyclictest0-21swapper/312:17:283
16779940,4cyclictest0-21swapper/311:51:043
16779940,4cyclictest0-21swapper/311:20:133
16779940,4cyclictest0-21swapper/310:06:113
16779940,4cyclictest0-21swapper/309:57:343
16779940,4cyclictest0-21swapper/307:50:103
16779940,3cyclictest4026-21sh09:28:443
16779940,3cyclictest30983-21sh11:48:123
16779940,3cyclictest27256-21latency_hist08:00:003
16779940,3cyclictest2644-21cat08:15:003
16779940,3cyclictest24961-21date09:00:013
16779940,3cyclictest24157-21/usr/sbin/munin10:10:183
16779940,3cyclictest20305-21expr07:45:113
16779940,3cyclictest17652-21/usr/sbin/munin11:10:163
16779940,1cyclictest3978-21ssh11:35:123
16779940,1cyclictest32043-21hddtemp_smartct10:45:163
16779940,1cyclictest29974-21memory12:35:173
16779940,1cyclictest27500-21/usr/sbin/munin08:00:173
16779940,1cyclictest25014-21tr09:00:093
16779940,1cyclictest22365-21/usr/sbin/munin12:00:143
16779940,1cyclictest17404-21/usr/sbin/munin07:40:133
16729944,0cyclictest0-21swapper/211:29:072
16729944,0cyclictest0-21swapper/210:36:182
16729944,0cyclictest0-21swapper/210:32:402
16729944,0cyclictest0-21swapper/209:46:142
16729944,0cyclictest0-21swapper/209:34:282
16729943,1cyclictest27270-21ssh09:55:172
16729942,2cyclictest14034-21ssh12:11:252
16729942,1cyclictest0-21swapper/208:10:122
16729941,3cyclictest0-21swapper/207:40:012
16729941,2cyclictest0-21swapper/208:00:102
16729941,2cyclictest0-21swapper/207:55:122
16729941,1cyclictest0-21swapper/208:05:132
16729940,4cyclictest813-21ssh12:36:502
16729940,4cyclictest22345-21apt-get07:50:112
16729940,4cyclictest0-21swapper/212:30:102
16729940,4cyclictest0-21swapper/212:25:592
16729940,4cyclictest0-21swapper/212:03:092
16729940,4cyclictest0-21swapper/211:55:122
16729940,4cyclictest0-21swapper/211:55:122
16729940,4cyclictest0-21swapper/211:46:522
16729940,4cyclictest0-21swapper/211:36:182
16729940,4cyclictest0-21swapper/211:05:132
16729940,4cyclictest0-21swapper/210:55:132
16729940,4cyclictest0-21swapper/210:51:242
16729940,4cyclictest0-21swapper/210:40:112
16729940,4cyclictest0-21swapper/210:26:282
16729940,4cyclictest0-21swapper/210:20:102
16729940,4cyclictest0-21swapper/210:15:112
16729940,4cyclictest0-21swapper/209:35:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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