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2026-03-13 - 05:57
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Fri Mar 13, 2026 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2474321885253,1277sleep021317-21kworker/0:019:05:310
25549991689,135cyclictest805-21rs:main0
25549991658,106cyclictest23400-21ntp_states23:15:420
25549991647,98cyclictest4228-21apt-get00:12:110
25549991647,104cyclictest7118-21df20:05:170
25549991617,103cyclictest13787-21apt-get22:42:090
25549991617,102cyclictest9605-21apt-get00:31:290
25549991608,112cyclictest25898-21apt-get21:17:080
25549991607,93cyclictest11802-21apt-get20:27:080
25549991599,129cyclictest1305-21snmpd20:20:010
255499915945,103cyclictest29407-21aten_r7power_cu19:25:130
255499915916,123cyclictest11419-21/usr/sbin/munin22:30:280
25549991587,128cyclictest1305-21snmpd21:27:530
255499915721,118cyclictest1408-21nginx23:50:390
25549991569,124cyclictest27266-21seq21:22:520
25549991569,106cyclictest4240-21http00:10:040
255499915638,107cyclictest1408-21nginx22:12:180
255499915437,106cyclictest18528-21aten_r7power_cu20:50:120
255499915436,105cyclictest22157-21ntpq23:10:390
25549991539,122cyclictest554-21ntp_states21:45:430
25549991539,105cyclictest20893-21munin-run21:00:020
25549991537,90cyclictest7910-21fw_forwarded_lo22:15:280
25549991536,106cyclictest25922-21ntp_states23:25:460
255499915329,105cyclictest10250irq/56-4a10000021:42:580
255499915327,110cyclictest10982chrt19:40:440
255499915327,106cyclictest1305-21snmpd22:48:100
255499915325,111cyclictest5775-21wget20:00:140
25549991528,125cyclictest26867-21/usr/sbin/munin19:15:460
25549991527,109cyclictest16785-21munin-node22:50:120
25549991519,108cyclictest6383-21ntp_states00:15:510
25549991518,89cyclictest29643-21ntp_states23:40:370
25549991518,100cyclictest30702-21diskstats23:45:220
255499915145,94cyclictest7475-21/usr/sbin/munin00:20:290
255499915140,99cyclictest3322-21runrttasks21:55:530
255499915127,103cyclictest21108-21wget21:00:140
255499915124,107cyclictest13570-21wget20:30:120
25549991509,105cyclictest2124-21fw_packets00:00:350
25549991508,105cyclictest8405-21fw_forwarded_lo20:10:270
25549991506,104cyclictest1305-21snmpd22:03:010
255499915021,109cyclictest5302-21sshd19:57:570
25549991498,100cyclictest8786-21irqstats00:25:370
25549991496,124cyclictest754-21systemd-journal21:32:210
25549991488,121cyclictest10696-21chrt20:20:130
25549991486,109cyclictest1305-21snmpd21:07:470
25549991478,101cyclictest27146-21ntp_states23:30:400
25549991476,104cyclictest12887-21fw_conntrack22:35:240
255499914724,111cyclictest30334-21sshd21:35:220
255499914645,92cyclictest28190-21seq23:35:180
255499914643,93cyclictest24458-21sort23:20:160
25549991458,96cyclictest25812-21df19:10:150
25549991457,120cyclictest19341-21wget23:00:130
255499914535,100cyclictest1435-21apt21:50:120
255499914511,120cyclictest787-21haveged22:55:130
25549991448,97cyclictest1305-21snmpd20:47:420
25549991447,100cyclictest14779-21/usr/sbin/munin20:35:340
25549991446,94cyclictest1694-21munin-run00:00:020
25549991445,121cyclictest10374-21df22:25:190
255499914438,94cyclictest801-21dbus-daemon00:40:020
255499914416,108cyclictest1305-21snmpd19:48:200
255499914414,112cyclictest31746-21munin-run19:35:020
25549991438,115cyclictest20615-21aten_r7power_po23:05:160
25549991437,95cyclictest1-21systemd19:21:190
25549991436,116cyclictest16043-21/usr/sbin/munin20:40:110
255499914328,103cyclictest3870-21runrttasks19:51:210
25549991429,87cyclictest5504-21memory22:05:340
255499914240,91cyclictest524-21sendmail19:40:010
255499914021,101cyclictest9523-21swap22:20:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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