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2026-04-07 - 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 Tue Apr 07, 2026 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1779922490,6sleep017800-21cat19:05:230
187399917932,20cyclictest1408-21nginx23:17:160
187399917427,18cyclictest1408-21nginx23:02:140
187399917138,112cyclictest1-21systemd00:25:320
187399917037,15cyclictest10250irq/56-4a10000019:48:060
187399916033,13cyclictest0-21swapper/020:48:090
187399915944,12cyclictest10150irq/55-4a10000021:58:230
187399915929,18cyclictest5005-21wget00:35:220
18739991576,15cyclictest26559-21apt-get19:42:090
187399915738,20cyclictest18901-21sshd21:15:240
18739991569,22cyclictest16692-21sshd21:06:230
187399915540,13cyclictest10150irq/55-4a10000000:00:020
187399915539,18cyclictest32348-21ntpq00:15:440
187399915439,12cyclictest10150irq/55-4a10000023:40:220
187399915437,16cyclictest26711-21runrttasks23:54:220
187399915433,103cyclictest2306-21df20:10:180
187399915424,16cyclictest31941-21chrt20:00:030
187399915418,15cyclictest31823-21latency_hist00:15:030
18739991538,23cyclictest28574-21ntp_states00:00:360
18739991538,14cyclictest14814-21apt-get23:12:100
18739991536,18cyclictest21201-21apt-get19:22:110
187399915346,13cyclictest10150irq/55-4a10000022:00:160
187399915342,11cyclictest8950irq/40-mmc120:20:420
187399915339,16cyclictest22973-21runrttasks19:25:120
187399915315,16cyclictest19499-21grep23:25:200
187399915235,21cyclictest754-21systemd-journal20:05:230
187399915235,17cyclictest12295-21sshd20:50:240
187399915229,18cyclictest29551-21/usr/sbin/munin19:50:540
18739991518,17cyclictest20343-21ntp_states21:20:380
187399915036,18cyclictest14826-21http23:10:050
187399915034,11cyclictest10150irq/55-4a10000022:46:340
187399915033,18cyclictest24814-21sshd23:45:350
187399915033,16cyclictest30507-21runrttasks00:09:310
187399915010,29cyclictest25943-21wc19:35:410
187399914942,95cyclictest19724-21runrttasks19:13:120
187399914941,15cyclictest10150irq/55-4a10000000:20:280
187399914940,12cyclictest10150irq/55-4a10000020:58:100
187399914936,16cyclictest318-21runrttasks20:01:470
187399914933,18cyclictest6264-21aten_r7power_po22:35:120
18739991487,17cyclictest21597-21ntp_states21:25:420
187399914839,17cyclictest28282-21runrttasks21:52:560
187399914839,17cyclictest17820-21/usr/sbin/munin23:20:280
187399914829,16cyclictest24440-21fw_packets19:30:280
187399914827,18cyclictest7314-21diskstats20:30:230
18739991477,30cyclictest26582-21awk21:45:420
187399914744,92cyclictest20841-21runrttasks19:17:070
187399914738,20cyclictest801-21dbus-daemon22:10:010
187399914728,14cyclictest0-21swapper/000:33:560
187399914628,17cyclictest1276-21runrttasks22:31:580
18739991457,18cyclictest6264-21ntp_states20:25:410
187399914542,20cyclictest76612chrt22:40:190
187399914536,9cyclictest8950irq/40-mmc120:45:030
187399914535,22cyclictest801-21dbus-daemon20:20:010
187399914535,18cyclictest8875-21mailstats20:35:460
187399914534,22cyclictest12306-21cron23:00:020
187399914531,19cyclictest4655-21sshd22:28:260
187399914444,13cyclictest10150irq/55-4a10000022:50:200
187399914436,18cyclictest24034-21runrttasks21:35:370
187399914432,17cyclictest22317-21ntpq23:35:360
187399914430,13cyclictest10150irq/55-4a10000022:10:120
187399914338,16cyclictest1276-21runrttasks22:20:220
187399914337,16cyclictest1276-21runrttasks21:44:580
187399914336,21cyclictest754-21systemd-journal23:31:350
187399914335,13cyclictest1276-21runrttasks21:33:000
18739991428,19cyclictest1401-21diskstats22:15:220
187399914231,18cyclictest15472-21runrttasks21:03:090
187399914027,14cyclictest17441-21/usr/sbin/munin21:10:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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