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2026-09-04 - 00:05
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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 Thu Sep 03, 2026 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23860220628,49sleep00-21swapper/019:09:290
239869917428,124cyclictest1305-21snmpd21:05:230
23986991667,116cyclictest3743-21sshd00:13:390
23986991636,14cyclictest24847-21ntp_states21:20:400
239869916227,115cyclictest12387-21aten_r7power_cu22:40:130
23986991619,25cyclictest8118-21/usr/sbin/munin00:30:340
239869916145,95cyclictest3650irq/20-4900000022:27:110
23986991597,15cyclictest22162-21diskstats21:10:290
239869915925,115cyclictest1305-21snmpd21:56:190
239869915925,112cyclictest9972-21wget22:30:160
239869915910,127cyclictest2010-21node19:26:090
239869915822,22cyclictest26937-21/usr/sbin/munin21:30:180
23986991577,19cyclictest2452-21ps22:00:420
23986991576,130cyclictest1305-21snmpd22:36:290
239869915736,110cyclictest2027-21ntpq19:50:430
239869915723,114cyclictest31638-21cut19:40:140
239869915643,102cyclictest2733-21latency_hist00:10:040
239869915540,103cyclictest13285-21grep20:35:430
239869915540,101cyclictest4810-21sshd00:17:070
239869915524,112cyclictest26468-21sendmail-msp19:20:020
23986991548,17cyclictest7291-21sshd20:11:230
239869915334,106cyclictest32287-21ntpq21:50:360
239869915333,101cyclictest0-21swapper/021:46:160
239869915327,108cyclictest1305-21snmpd23:51:490
239869915318,115cyclictest787-21haveged19:35:040
23986991529,16cyclictest9512-21ntp_states20:20:420
23986991528,19cyclictest3671-21chrt19:57:230
23986991527,21cyclictest802-21in:imuxsock23:57:210
23986991526,21cyclictest1305-21snmpd20:29:040
23986991526,15cyclictest25937-21apt-get23:37:120
239869915228,107cyclictest1305-21snmpd22:23:150
239869915223,114cyclictest5390-21wget20:05:120
239869915210,22cyclictest14632-21df20:40:270
23986991518,22cyclictest442-21wget19:45:140
23986991516,16cyclictest1305-21snmpd23:26:410
239869915135,94cyclictest801-21dbus-daemon00:29:450
23986991509,16cyclictest515-21iwlist00:00:310
23986991508,19cyclictest8043-21diskstats20:15:190
239869915044,96cyclictest17225-21tr23:00:030
239869915036,100cyclictest14415-21sshd22:47:310
239869915031,107cyclictest20130-21runrttasks23:10:320
239869915026,103cyclictest1305-21snmpd20:00:240
23986991498,19cyclictest26583-21/usr/sbin/munin19:20:130
23986991497,16cyclictest29922-21sshd23:48:540
239869914935,102cyclictest6074-21ntpq22:15:360
239869914924,104cyclictest11592-21/usr/sbin/munin20:30:100
23986991488,22cyclictest9829-21ntp_states00:35:420
23986991487,21cyclictest1608-21ntpd23:05:390
239869914832,105cyclictest22707-21runrttasks23:20:520
239869914829,108cyclictest29492-21grep21:40:130
239869914828,108cyclictest812-21avahi-daemon21:30:030
23986991478,18cyclictest23365-21df21:15:160
23986991478,118cyclictest15930-21diskstats20:45:230
23986991477,17cyclictest4589-21hostname22:10:160
23986991476,121cyclictest22193-21sh23:20:020
239869914736,97cyclictest801-21dbus-daemon00:25:010
23986991466,119cyclictest1276-21runrttasks23:40:220
239869914643,91cyclictest3850-21/usr/sbin/munin22:05:530
239869914635,101cyclictest25278-21latency_hist19:15:040
239869914627,107cyclictest18588-21sh20:55:390
239869914621,103cyclictest25134-21irqstats23:30:400
239869914538,98cyclictest15666-21sshd22:52:320
239869914535,99cyclictest17721-21ntpq23:00:370
239869914516,16cyclictest1305-21snmpd21:35:240
239869914428,96cyclictest30299-21/usr/sbin/munin19:35:460
23986991418,16cyclictest16958-21/usr/sbin/munin20:50:160
239869914031,93cyclictest8950irq/40-mmc121:00:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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