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2026-04-19 - 12:35
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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 Sun Apr 19, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
58202451117,0sleep08909-21kworker/0:119:03:440
60709912946,0cyclictest22786-21/usr/sbin/munin21:26:070
60709912931,0cyclictest4098-21ps22:06:130
60709912734,0cyclictest2097-21seq20:25:540
60709912733,0cyclictest3950-21meminfo20:31:040
60709912733,0cyclictest27558-21df_inode20:05:410
60709912636,0cyclictest12368-21fw_forwarded_lo00:05:570
60709912635,0cyclictest20756-21seq21:20:450
60709912632,0cyclictest22803-21tr19:51:080
60709912612,0cyclictest5762-21runrttasks23:46:110
60709912612,0cyclictest15203-21sendmail00:15:220
60709912534,0cyclictest17325-21df_abs00:20:430
60709912533,0cyclictest24307-21grep19:55:520
60709912532,0cyclictest10678-21/usr/sbin/munin20:50:580
60709912531,0cyclictest9112-21/usr/sbin/munin23:56:050
60709912439,0cyclictest9910-21runrttasks19:14:190
60709912433,0cyclictest17472-21fw_forwarded_lo21:10:570
60709912355,0cyclictest12-21ksoftirqd/019:45:230
60709912346,0cyclictest7350irq/45-4a10000022:45:550
60709912336,0cyclictest25577-21aten_r4power_cu20:00:330
60709912334,0cyclictest23716-21cron23:05:220
60709912330,0cyclictest2948-21runrttasks22:03:150
60709912241,0cyclictest0-21swapper21:16:280
60709912237,0cyclictest20740-21df_abs22:55:430
60709912233,0cyclictest10377-21/usr/sbin/munin19:15:370
60709912230,0cyclictest13433-1kworker/u3:000:18:220
60709912133,0cyclictest29070-21aten_r4power_vo20:10:340
60709912132,0cyclictest12827-21ls20:56:150
60709912128,0cyclictest21623-21runrttasks00:32:090
60709912126,0cyclictest27800-21runrttasks23:15:580
60709912113,0cyclictest21406-21timerwakeupswit19:46:190
60709912039,0cyclictest7320-21runrttasks19:06:550
60709912038,0cyclictest15925-21/usr/sbin/munin22:41:030
60709912028,0cyclictest26852-21runrttasks21:38:020
60709912013,0cyclictest2191-21irqstats23:36:000
60709912012,0cyclictest484-21runrttasks20:40:200
60709912011,0cyclictest17334-21df_inode19:35:440
60709911949,0cyclictest7350irq/45-4a10000023:05:400
60709911936,0cyclictest7682-21/usr/sbin/munin23:51:190
60709911935,0cyclictest278832chrt21:41:040
60709911935,0cyclictest12598-21ntp_states22:31:110
60709911927,0cyclictest32387-21wc20:20:270
60709911927,0cyclictest1453-21runrttasks21:59:580
60709911839,0cyclictest4096-21runrttasks23:41:100
60709911832,0cyclictest13820-21df21:00:400
60709911828,0cyclictest25184-21runrttasks21:33:270
60709911825,0cyclictest30584-1kworker/u3:220:20:040
60709911738,0cyclictest7987-21sshd22:17:230
60709911736,0cyclictest6796-21aten_r4power_cu20:40:320
60709911734,0cyclictest0-21swapper00:00:330
60709911732,0cyclictest13891-21grep22:35:400
60709911728,0cyclictest14304-21ntp_states19:26:130
60709911726,0cyclictest31993-21seq23:28:150
60709911724,0cyclictest16790-21seq19:34:440
60709911638,0cyclictest0-21swapper23:20:270
60709911631,0cyclictest198822sleep000:26:500
60709911630,0cyclictest31980-21seq21:53:140
60709911535,0cyclictest15941-21missed_timers21:06:080
60709911530,0cyclictest29288-21diskstats21:45:470
60709911530,0cyclictest10512-21forks22:25:470
60709911438,0cyclictest0-21swapper19:21:590
60709911339,0cyclictest0-21swapper22:50:470
60709911332,0cyclictest25949-21fschecks_time23:10:490
60709911330,0cyclictest9054-21latency22:21:000
60709911327,0cyclictest484-21runrttasks20:46:070
60709911227,0cyclictest6580-21seq22:15:010
60709911024,0cyclictest520-21latency23:31:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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