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2026-04-10 - 20:22
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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
Characteristics of the 100 highest latencies:
System rack1slot3.osadl.org (updated Fri Apr 10, 2026 12:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
233704199136,5cyclictest0-21swapper/308:15:133
2337041991311,1cyclictest0-21swapper/312:05:103
233704199130,1cyclictest0-21swapper/309:40:113
233704199130,11cyclictest0-21swapper/310:30:103
233704199130,11cyclictest0-21swapper/309:50:113
2337041991210,1cyclictest0-21swapper/309:30:123
233704199120,1cyclictest0-21swapper/309:35:123
233704199120,11cyclictest0-21swapper/310:25:173
233704199120,11cyclictest0-21swapper/308:50:153
233704199120,11cyclictest0-21swapper/308:25:183
233704199120,11cyclictest0-21swapper/307:20:123
233704199120,0cyclictest0-21swapper/311:10:113
2337041991110,0cyclictest0-21swapper/312:35:123
2337041991110,0cyclictest0-21swapper/310:00:123
233704199110,10cyclictest0-21swapper/308:05:163
233704199110,10cyclictest0-21swapper/307:15:003
233704199110,0cyclictest0-21swapper/311:40:103
233704199110,0cyclictest0-21swapper/311:10:023
233704199110,0cyclictest0-21swapper/311:00:023
233704199110,0cyclictest0-21swapper/308:45:163
233704199110,0cyclictest0-21swapper/308:40:173
233704199110,0cyclictest0-21swapper/307:39:463
233704199109,1cyclictest0-21swapper/311:30:123
233704199109,0cyclictest0-21swapper/307:10:113
2337041991010,0cyclictest0-21swapper/311:30:013
2337041991010,0cyclictest0-21swapper/310:10:173
2337041991010,0cyclictest0-21swapper/308:55:123
233704199100,9cyclictest0-21swapper/312:20:163
233704199100,9cyclictest0-21swapper/309:05:113
233704199100,1cyclictest0-21swapper/311:55:103
233704199100,0cyclictest0-21swapper/312:30:153
233704199100,0cyclictest0-21swapper/308:15:003
233704199100,0cyclictest0-21swapper/308:00:193
23370419999,0cyclictest0-21swapper/312:10:163
23370419999,0cyclictest0-21swapper/311:40:013
23370419999,0cyclictest0-21swapper/311:20:163
23370419999,0cyclictest0-21swapper/310:45:153
23370419999,0cyclictest0-21swapper/309:45:153
23370419999,0cyclictest0-21swapper/307:55:143
23370419999,0cyclictest0-21swapper/307:45:163
23370419990,8cyclictest0-21swapper/311:50:173
23370419990,8cyclictest0-21swapper/309:15:173
23370419990,8cyclictest0-21swapper/309:10:173
23370419990,8cyclictest0-21swapper/307:45:003
23370419988,0cyclictest0-21swapper/312:26:173
23370419988,0cyclictest0-21swapper/311:00:113
23370419988,0cyclictest0-21swapper/310:50:183
23370419988,0cyclictest0-21swapper/308:20:193
23370419988,0cyclictest0-21swapper/307:29:143
23370419987,0cyclictest0-21swapper/311:15:203
23370419987,0cyclictest0-21swapper/310:35:173
2335398281,5sleep30-21swapper/307:05:133
23370419977,0cyclictest0-21swapper/310:15:193
23370419977,0cyclictest0-21swapper/309:00:143
23370419977,0cyclictest0-21swapper/307:30:093
23370419976,0cyclictest0-21swapper/312:00:143
23370419966,0cyclictest0-21swapper/311:45:133
23370419966,0cyclictest0-21swapper/310:42:493
23370419966,0cyclictest0-21swapper/310:42:493
23370419966,0cyclictest0-21swapper/309:25:123
23370419966,0cyclictest0-21swapper/309:20:183
23370419965,0cyclictest0-21swapper/309:59:033
23370419960,0cyclictest0-21swapper/312:15:173
2399513252,2sleep22399668-21grep09:45:142
23370419955,0cyclictest0-21swapper/310:07:313
14039850,2rtkit-daemon2428516-21apt-get10:55:142
14039850,2rtkit-daemon0-21swapper/107:05:221
2418055241,1sleep22418081-21apt-get10:30:102
23370419944,0cyclictest0-21swapper/310:20:033
23370419944,0cyclictest0-21swapper/307:50:163
23370419940,3cyclictest2371918-21chrt08:35:223
23370419940,3cyclictest2370037-21chrt08:30:463
2336635241,0sleep00-21swapper/007:06:540
2335894241,1sleep20-21swapper/207:05:162
14039840,2rtkit-daemon766-21snmpd11:53:192
14039840,2rtkit-daemon766-21snmpd11:37:192
14039840,2rtkit-daemon766-21snmpd09:21:422
14039840,2rtkit-daemon766-21snmpd07:45:051
14039840,2rtkit-daemon622-21wpa_supplicant10:01:042
14039840,2rtkit-daemon2384063-21diskmemload12:11:022
14039840,2rtkit-daemon2384063-21diskmemload09:30:112
14039840,2rtkit-daemon2370641-21apt-get08:35:112
14039840,2rtkit-daemon2339045-21munin-node09:35:142
14039840,2rtkit-daemon1-21systemd12:38:322
14039840,2rtkit-daemon1-21systemd12:20:482
14039840,1rtkit-daemon766-21snmpd10:21:372
14039840,1rtkit-daemon606-21avahi-daemon08:58:142
2443885230,0sleep02444077-21strings11:30:140
2395350230,2sleep02395540-21needreboot09:35:150
2374212230,1sleep02374224-21apt-get08:45:010
2366791230,1sleep12366817-21apt-get08:25:121
14039830,2rtkit-daemon691-21gmain10:45:122
14039830,2rtkit-daemon418-21systemd-journal07:55:151
14039830,2rtkit-daemon1410-21sendmail-mta08:01:061
14039830,1rtkit-daemon769-21ntpd11:34:072
14039830,1rtkit-daemon769-21ntpd09:06:042
14039830,1rtkit-daemon769-21ntpd09:04:182
14039830,1rtkit-daemon766-21snmpd11:40:572
14039830,1rtkit-daemon766-21snmpd10:12:172
14039830,1rtkit-daemon622-21wpa_supplicant11:45:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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