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2026-01-09 - 03:16
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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 highest latencies:
System rack4slot2.osadl.org (updated Fri Jan 09, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502750,0irq/46-4a10000012-21ksoftirqd/019:08:160
250429913044,0cyclictest18299-21/usr/sbin/munin21:55:130
250429912644,0cyclictest19435-21fschecks_time20:24:450
250429912639,0cyclictest22612-21/usr/sbin/munin22:09:300
250429912538,0cyclictest15182-21/usr/sbin/munin23:20:150
250429912239,0cyclictest12-21ksoftirqd/019:10:210
250429912233,0cyclictest15415-21seq20:14:120
250429912232,0cyclictest3205-21runrttasks21:11:300
250429912231,0cyclictest27061-21chrt19:14:250
250429912142,0cyclictest0-21swapper21:48:570
250429912134,0cyclictest8441-21/usr/sbin/munin00:35:160
250429912134,0cyclictest21043-21sed20:29:510
250429912134,0cyclictest17675-21fschecks_count20:19:430
250429912132,0cyclictest26070-21aten_r4power_po22:19:290
250429912042,0cyclictest2494-21df_abs00:19:350
250429912038,0cyclictest31602-21fschecks_count00:09:450
250429912034,0cyclictest5131-21runrttasks19:44:070
250429912030,0cyclictest6136-21sendmail_mailst19:45:110
250429911944,0cyclictest7350irq/45-4a10000022:59:150
250429911938,0cyclictest30032-21memory22:30:010
250429911937,0cyclictest9703-21/usr/sbin/munin23:05:090
250429911935,0cyclictest2116-21sendmail-msp00:19:140
250429911934,0cyclictest25242-21chrt20:40:190
250429911831,0cyclictest28683-21users20:50:330
250429911830,0cyclictest22881-21perl20:34:480
250429911829,0cyclictest8140-21seq19:50:450
250429911829,0cyclictest17095-21runrttasks23:26:470
250429911828,0cyclictest18749-21kworker/u2:423:31:300
250429911741,0cyclictest6822-21runrttasks00:30:590
250429911731,0cyclictest6402-21ls21:20:160
250429911644,0cyclictest7350irq/45-4a10000021:59:400
250429911638,0cyclictest24568-21/usr/sbin/munin23:49:340
250429911635,0cyclictest460-21snmpd21:29:550
250429911635,0cyclictest29900-21fschecks_count00:04:430
250429911631,0cyclictest9038-21forks19:54:420
250429911631,0cyclictest2629-1kworker/u3:022:48:110
250429911631,0cyclictest16392-21/usr/sbin/munin20:15:110
250429911630,0cyclictest29290-21munin-plugin-st22:29:130
250429911630,0cyclictest25889-21aten_r4power_cu20:44:290
250429911628,0cyclictest30578-21runrttasks20:56:580
250429911539,0cyclictest0-21swapper21:36:100
250429911530,0cyclictest4343-21grep00:24:440
250429911530,0cyclictest32567-21latency_hist19:29:170
250429911529,0cyclictest25041-21cyclictest22:35:170
250429911526,0cyclictest32553-21chrt21:04:010
250429911447,0cyclictest12-21ksoftirqd/023:59:130
250429911440,0cyclictest0-21swapper21:17:460
250429911435,0cyclictest24187-21runrttasks23:48:480
250429911429,0cyclictest25041-21cyclictest21:40:340
250429911429,0cyclictest22298-21seq22:08:230
250429911429,0cyclictest2077-21df19:34:350
250429911428,0cyclictest13572-21seq20:08:030
250429911344,0cyclictest12-21ksoftirqd/021:05:010
250429911343,0cyclictest12-21ksoftirqd/023:14:240
250429911335,0cyclictest16579-21mailstats21:50:130
250429911328,0cyclictest31073-21cpu19:24:320
250429911325,0cyclictest8337-21users21:26:300
250429911244,0cyclictest12-21ksoftirqd/019:19:540
250429911237,0cyclictest0-21swapper23:38:220
250429911235,0cyclictest28496-21nfs4_client00:00:050
250429911227,0cyclictest10748-21sh19:59:370
250429911214,0cyclictest21576-21chrt23:39:580
250429911143,0cyclictest12-21ksoftirqd/022:49:580
250429911126,0cyclictest24476-21df22:14:350
250429911027,0cyclictest7578-21entropy22:59:420
250429910826,0cyclictest1980-21debian-sa122:44:130
250429910814,0cyclictest10666-21apt-get23:09:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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