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2026-05-09 - 16:40
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Sat May 09, 2026 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32481224410,12sleep024853-1kworker/u3:307:04:580
326899915580,53cyclictest1548-21tr11:16:330
326899915281,49cyclictest20792-21apt-get09:01:510
326899915276,50cyclictest9992-21apt-get10:06:580
326899914978,30cyclictest14209-21sendmail_mailqu10:18:120
326899914977,48cyclictest29089-21irqstats09:27:480
326899914974,51cyclictest25734-21modprobe12:26:410
326899914974,33cyclictest18821-21ls12:06:400
326899914973,54cyclictest29063-21ssh12:36:330
326899914973,36cyclictest14056-21sshd08:22:300
326899914890,36cyclictest4821-21apt-get09:51:560
326899914876,50cyclictest11319-21ntp_kernel_err08:07:270
326899914876,48cyclictest26912-21/usr/sbin/munin09:22:400
326899914874,51cyclictest17313-21/usr/sbin/munin10:27:400
326899914873,49cyclictest31041-21ssh11:07:320
326899914872,37cyclictest10732-21rm11:42:450
326899914871,37cyclictest15845-21pluginstate10:23:100
326899914781,46cyclictest13279-21sendmail_mailqu08:17:350
326899914777,50cyclictest21208-21ntp_states12:13:030
326899914776,49cyclictest12577-21munin-run08:16:340
326899914774,34cyclictest18760-21grep10:32:090
326899914676,49cyclictest28595-21snmpd11:36:540
326899914674,51cyclictest24633-21grep12:22:590
326899914674,50cyclictest25359-21tr09:17:100
326899914576,30cyclictest2517-21timerandwakeup11:18:160
326899914575,50cyclictest27989-21ssh10:58:110
326899914575,49cyclictest19309-21irqstats12:07:410
326899914574,49cyclictest3096-21apt-get09:46:560
326899914572,33cyclictest14647-21uptime11:53:210
326899914485,38cyclictest9872-21ssh10:06:340
326899914475,42cyclictest22383-21tr12:17:020
326899914473,49cyclictest14733-21df08:27:060
326899914473,47cyclictest26435-21users10:53:240
326899914472,51cyclictest22273-21awk10:42:100
326899914471,50cyclictest12952-21ssh10:14:490
326899914376,48cyclictest11993-21apt-get11:46:550
326899914374,47cyclictest9550-21awk07:57:280
326899914374,47cyclictest8233-21sshd07:51:570
326899914273,47cyclictest30887-21memory09:32:560
326899914273,47cyclictest1673-21ssh09:42:220
326899914272,31cyclictest28595-21snmpd08:56:570
326899914271,49cyclictest20947-21grep10:38:000
326899914270,50cyclictest978-21ssh09:40:220
326899914179,39cyclictest7649-21ls11:33:140
326899914174,43cyclictest3410-21apt-get11:21:550
326899914173,48cyclictest5461-21ssh11:27:270
326899914173,46cyclictest23942-21grep09:12:520
326899914173,29cyclictest6381-21/usr/sbin/munin07:41:440
326899914171,50cyclictest17926-21sed08:42:410
326899914171,48cyclictest29330-21sh11:02:330
326899914169,49cyclictest6940-21ssh09:57:330
326899914073,47cyclictest24666-21grep10:48:170
326899914071,49cyclictest17027-21sed08:37:410
326899914071,47cyclictest28595-21snmpd12:00:440
326899914068,33cyclictest22579-21timerandwakeup09:08:240
326899913971,47cyclictest10511-21wc08:02:350
326899913970,46cyclictest15564-21wc08:32:020
326899913970,33cyclictest4313-21threads07:27:380
326899913969,33cyclictest28595-21snmpd07:10:490
326899913883,36cyclictest1774-21grep07:16:340
326899913777,38cyclictest7435-21cat07:47:000
326899913770,45cyclictest19185-21df08:52:020
326899913672,26cyclictest5530-21aten_r5power_en07:36:560
326899913669,47cyclictest5028-21tr07:32:270
326899913470,46cyclictest18150-21aten_r5power_po08:46:560
326899913381,30cyclictest3243-21awk07:22:280
326899913167,45cyclictest2274-21cat07:17:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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