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2025-08-21 - 22:16
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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 376 highest latencies:
System rack7slot8.osadl.org (updated Thu Aug 21, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29363210340,12sleep029357-21aten_r7power_cu19:05:150
305129916659,90cyclictest127242chrt20:05:440
30512991599,111cyclictest32199-21apt-get21:22:140
30512991597,117cyclictest1356-21snmpd23:41:280
305129915934,106cyclictest10250irq/56-4a10000021:32:200
305129915933,108cyclictest10250irq/56-4a10000021:07:060
305129915927,113cyclictest937-21latency_hist23:35:020
30512991589,92cyclictest22104-21irqstats22:50:280
30512991588,129cyclictest1356-21snmpd00:22:050
305129915828,110cyclictest1424-21nginx00:38:540
30512991579,109cyclictest13931-21ntp_states20:10:430
30512991568,104cyclictest1356-21snmpd22:47:100
30512991556,133cyclictest29962-21diskstats21:15:280
30512991556,127cyclictest19271-21sshd20:31:500
30512991549,102cyclictest10269-21ntp_states19:56:210
30512991548,124cyclictest800-21avahi-daemon23:36:030
30512991548,109cyclictest4378-21ntp_states21:40:420
30512991547,91cyclictest10603-21ntp_states22:05:430
30512991547,127cyclictest1356-21snmpd22:16:320
305129915428,112cyclictest1356-21snmpd23:06:460
305129915421,112cyclictest1424-21nginx20:20:310
30512991538,88cyclictest505-21memory21:25:390
30512991528,122cyclictest16863-21ntp_states22:30:530
305129915239,103cyclictest9353-21runrttasks22:00:390
30512991518,125cyclictest23079-21sshd20:47:200
30512991517,125cyclictest1356-21snmpd21:46:250
30512991517,123cyclictest1356-21snmpd23:30:040
305129915132,97cyclictest6029-21/usr/sbin/munin23:55:370
30512991508,17cyclictest852-21df19:20:180
30512991507,16cyclictest4631-21diskstats19:35:230
30512991507,126cyclictest27725-21awk23:10:490
30512991506,18cyclictest23265-21diskstats22:55:250
305129915028,102cyclictest28433-21/usr/sbin/munin23:15:350
305129915021,109cyclictest1356-21snmpd19:54:560
30512991498,100cyclictest813-21in:imuxsock21:58:210
30512991497,15cyclictest13963-21ntp_states00:25:440
305129914941,98cyclictest11430-21ntpq00:15:370
30512991488,95cyclictest3391-21diskstats19:30:220
30512991488,16cyclictest23730-21diskstats20:50:270
305129914836,100cyclictest1424-21nginx00:34:350
305129914830,107cyclictest20058-21/usr/sbin/munin20:35:290
30512991478,96cyclictest20071-21munin-run22:45:020
30512991478,20cyclictest21245-21diskstats20:40:240
305129914735,99cyclictest3091-21ntpq21:35:400
305129914728,101cyclictest1356-21snmpd23:48:460
305129914713,122cyclictest15596-21ntp_states22:25:410
30512991468,102cyclictest800-21avahi-daemon22:35:150
30512991467,14cyclictest15544-21apt-get20:17:050
30512991467,117cyclictest1356-21snmpd20:00:200
30512991466,17cyclictest800-21avahi-daemon19:48:580
305129914643,92cyclictest14282-21runrttasks22:20:350
305129914621,108cyclictest29306-21sshd21:12:210
30512991459,100cyclictest6550-21wget21:50:150
30512991456,15cyclictest8945-21ntp_states00:05:430
305129914535,98cyclictest760-21systemd-journal23:53:210
305129914519,113cyclictest1356-21snmpd19:30:000
30512991449,117cyclictest25338-21sshd23:04:080
30512991449,117cyclictest17319-21grep20:25:140
30512991448,105cyclictest26027-21aten_r7power_cu21:00:120
30512991448,100cyclictest24750-21/usr/sbin/munin20:55:340
305129914438,94cyclictest308932chrt19:10:310
30512991438,103cyclictest1356-21snmpd00:01:580
30512991436,124cyclictest1356-21snmpd23:21:510
30512991429,118cyclictest5887-21diskstats19:40:220
30512991427,123cyclictest31874-21aten_r7power_en19:15:140
30512991427,123cyclictest11845-21ntp_states22:10:440
305129913946,75cyclictest9930-21wget00:10:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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