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2025-06-19 - 01:56
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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 rack1slot3.osadl.org (updated Thu Jun 19, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
171307999140,12cyclictest0-21swapper/321:40:143
171307999130,11cyclictest0-21swapper/322:00:123
171307999130,11cyclictest0-21swapper/300:00:003
171307999120,11cyclictest0-21swapper/322:45:153
171307999120,11cyclictest0-21swapper/319:20:013
171307999120,11cyclictest0-21swapper/319:20:013
1713079991111,0cyclictest0-21swapper/319:45:013
1713079991110,0cyclictest0-21swapper/322:05:143
171307999110,11cyclictest0-21swapper/322:25:013
171307999110,10cyclictest0-21swapper/323:20:193
171307999110,10cyclictest0-21swapper/323:15:223
171307999110,10cyclictest0-21swapper/321:30:183
171307999110,10cyclictest0-21swapper/300:26:283
171307999110,0cyclictest0-21swapper/319:25:133
171307999109,0cyclictest0-21swapper/323:05:113
171307999109,0cyclictest0-21swapper/321:50:123
171307999109,0cyclictest0-21swapper/320:25:153
171307999109,0cyclictest0-21swapper/320:20:133
171307999109,0cyclictest0-21swapper/300:05:183
1713079991010,0cyclictest0-21swapper/323:30:173
1713079991010,0cyclictest0-21swapper/321:05:133
1713079991010,0cyclictest0-21swapper/319:55:203
171307999100,9cyclictest0-21swapper/320:05:183
171307999100,0cyclictest0-21swapper/322:55:013
171307999100,0cyclictest0-21swapper/321:55:193
171307999100,0cyclictest0-21swapper/320:35:143
171307999100,0cyclictest0-21swapper/320:15:183
17130799999,0cyclictest0-21swapper/323:50:163
17130799999,0cyclictest0-21swapper/323:40:183
17130799999,0cyclictest0-21swapper/322:10:193
17130799999,0cyclictest0-21swapper/321:45:143
17130799999,0cyclictest0-21swapper/321:10:213
17130799999,0cyclictest0-21swapper/320:50:003
17130799999,0cyclictest0-21swapper/319:50:023
17130799999,0cyclictest0-21swapper/319:10:203
17130799999,0cyclictest0-21swapper/300:30:163
17130799999,0cyclictest0-21swapper/300:24:273
17130799999,0cyclictest0-21swapper/300:00:193
17130799998,0cyclictest0-21swapper/323:30:013
17130799998,0cyclictest0-21swapper/323:00:213
17130799998,0cyclictest0-21swapper/322:57:173
17130799998,0cyclictest0-21swapper/320:00:143
17130799990,0cyclictest0-21swapper/323:45:223
17130799988,0cyclictest0-21swapper/322:30:113
17130799988,0cyclictest0-21swapper/322:15:153
17130799988,0cyclictest0-21swapper/321:39:293
17130799988,0cyclictest0-21swapper/321:25:193
17130799988,0cyclictest0-21swapper/321:19:553
17130799987,0cyclictest0-21swapper/322:40:133
17130799986,2cyclictest1756803-21taskset20:57:213
17130799980,7cyclictest0-21swapper/320:30:113
17130799980,7cyclictest0-21swapper/300:15:013
17130799980,0cyclictest0-21swapper/300:35:223
17130799977,0cyclictest0-21swapper/321:20:163
17130799977,0cyclictest0-21swapper/320:50:003
17130799976,0cyclictest0-21swapper/322:25:013
17130799970,0cyclictest0-21swapper/300:15:183
1711254271,4sleep30-21swapper/319:05:153
1828170261,1sleep11828196-21apt-get23:50:151
17130799966,0cyclictest0-21swapper/320:10:123
17130799966,0cyclictest0-21swapper/319:35:153
17130799965,0cyclictest0-21swapper/323:10:193
17130799960,4cyclictest0-21swapper/319:30:153
17130799955,0cyclictest0-21swapper/323:35:203
17130799954,0cyclictest0-21swapper/321:00:143
17130799950,4cyclictest0-21swapper/320:45:023
1711606251,2sleep10-21swapper/119:05:161
13989850,3rtkit-daemon1746249-21ntp_states20:30:170
13989850,0rtkit-daemon0-21swapper/021:16:550
13989850,0rtkit-daemon0-21swapper/000:23:150
17130799944,0cyclictest0-21swapper/322:36:563
17130799944,0cyclictest0-21swapper/319:50:133
1712548242,1sleep20-21swapper/219:05:332
13989840,2rtkit-daemon760-21snmpd23:29:470
13989840,2rtkit-daemon614-21wpa_supplicant00:15:490
13989840,2rtkit-daemon1786649-21python322:10:200
13989840,2rtkit-daemon1760873-21diskmemload23:41:320
13989840,2rtkit-daemon1732190-21diskstats19:55:170
13989840,2rtkit-daemon1718830-21ntp_states19:20:180
13989840,2rtkit-daemon1715128-21munin-node22:20:160
13989840,2rtkit-daemon1-21systemd21:39:080
13989840,1rtkit-daemon331-21plymouthd19:05:030
1837174230,2sleep11837371-21/usr/sbin/munin00:10:161
1745942230,2sleep21746095-21memory20:30:152
1730812230,0sleep20-21swapper/219:50:202
1716503230,1sleep21716634-21ntp_states19:15:182
13989830,2rtkit-daemon760-21snmpd21:33:200
13989830,2rtkit-daemon1760873-21diskmemload00:06:080
13989830,2rtkit-daemon1719960-21kworker/u16:2+rpciod22:48:330
13989830,2rtkit-daemon1399-21sendmail-mta21:00:140
13989830,1rtkit-daemon765-21lldpd22:02:240
13989830,1rtkit-daemon762-21ntpd23:58:510
13989830,1rtkit-daemon762-21ntpd00:11:270
13989830,1rtkit-daemon684-21gmain23:35:560
13989830,1rtkit-daemon614-21wpa_supplicant21:57:320
13989830,1rtkit-daemon614-21wpa_supplicant20:13:470
13989830,1rtkit-daemon331-21plymouthd23:00:020
13989830,1rtkit-daemon331-21plymouthd22:27:050
13989830,1rtkit-daemon331-21plymouthd22:15:400
13989830,1rtkit-daemon331-21plymouthd22:06:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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