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2025-11-29 - 16:03
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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 highest latencies:
System rack7slot8.osadl.org (updated Sat Nov 29, 2025 13:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9390220627,49sleep00-21swapper/007:09:430
94909914754,55cyclictest8797-21wget09:15:160
94909913663,35cyclictest20896-21chrt12:05:210
94909913659,38cyclictest1356-21snmpd07:20:220
94909913564,50cyclictest9308-21seq11:20:260
94909913557,37cyclictest25237-21apt-get10:20:570
94909913460,54cyclictest23825-21wget08:05:210
94909913456,58cyclictest1424-21nginx09:50:250
94909913455,61cyclictest4594-21/usr/sbin/munin11:00:480
94909913267,21cyclictest27827-21ntp_states08:20:430
94909913260,36cyclictest14620-21cmp11:40:250
94909913069,42cyclictest1424-21nginx09:20:110
94909913057,35cyclictest28440-21df_inode10:30:200
94909913057,34cyclictest18608-21apt-get09:56:310
94909912956,53cyclictest1356-21snmpd11:15:140
94909912955,28cyclictest25325-21systemd-tmpfile12:21:240
94909912861,48cyclictest24702-21users10:15:510
94909912853,23cyclictest1422-21cat08:45:170
94909912852,35cyclictest16314-21users11:45:510
94909912665,20cyclictest30551-21sshd08:30:560
94909912659,23cyclictest1983-21ntp_states10:50:420
94909912652,36cyclictest32255-21apt-get10:47:110
94909912554,53cyclictest16561-21memory09:45:360
94909912460,25cyclictest12498-21sshd11:33:210
94909912456,35cyclictest13019-21df_inode11:35:230
94909912455,25cyclictest27398-21ntp_states10:25:440
94909912452,35cyclictest1356-21snmpd07:59:250
94909912353,30cyclictest1424-21nginx12:36:480
94909912277,35cyclictest1424-21nginx11:05:330
94909912256,35cyclictest1356-21snmpd08:39:330
94909912254,36cyclictest22272-21diskstats08:00:240
94909912253,51cyclictest28243-21sshd12:33:210
94909912251,35cyclictest1356-21snmpd12:25:450
94909912250,20cyclictest18381-21df11:55:190
94909912247,20cyclictest11219-21ntp_states07:15:420
94909912174,37cyclictest26400-21chrt08:15:260
94909912160,20cyclictest4359-21users08:55:530
94909912158,43cyclictest25557-21sshd08:10:520
94909912157,48cyclictest32346-21apt-config10:45:080
94909912154,26cyclictest10726-21ntp_states11:25:430
94909912151,35cyclictest1356-21snmpd09:29:480
94909912150,35cyclictest15183-21users07:30:490
94909912146,36cyclictest5308-21irqstats09:00:310
94909912073,36cyclictest29365-21apt-get10:35:380
94909912058,22cyclictest1356-21snmpd11:10:510
94909911969,37cyclictest23946-21apt-get12:17:080
94909911958,42cyclictest1356-21snmpd08:50:190
94909911957,46cyclictest1356-21snmpd07:14:130
94909911855,48cyclictest21914-21runrttasks10:05:310
94909911852,35cyclictest1356-21snmpd07:39:200
94909911773,33cyclictest760-21systemd-journal10:12:200
94909911751,50cyclictest1364-21sshd12:13:230
94909911748,34cyclictest13738-21ntp_states07:25:420
94909911670,37cyclictest29488-21chrt08:27:180
94909911667,38cyclictest20172-21users07:50:520
94909911650,37cyclictest17389-21memory07:40:350
94909911649,35cyclictest760-21systemd-journal10:56:250
94909911646,34cyclictest14864-21latency_hist09:40:030
94909911579,27cyclictest17193-21fw_forwarded_lo11:50:330
94909911565,38cyclictest19689-21fw_forwarded_lo12:00:280
94909911555,19cyclictest362-21ntp_states08:40:410
94909911554,46cyclictest10250irq/56-4a10000009:41:180
94909911551,46cyclictest7053-21runrttasks09:07:210
94909911550,48cyclictest21179-21sshd10:02:210
94909911470,32cyclictest7858-21ntpq09:10:380
94909911439,60cyclictest128722sleep009:30:370
94909911362,39cyclictest18828-21/usr/sbin/munin07:45:450
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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