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2026-06-29 - 09:29
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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 792 highest latencies:
System rack4slot2.osadl.org (updated Mon Jun 29, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502760,0irq/46-4a10000012-21ksoftirqd/019:09:110
7450960,0irq/46-4a1000001764-21sendmail-msp20:20:140
2564429626,0sleep025630-21cron19:54:310
7450940,0irq/46-4a1000004193-21/usr/sbin/munin20:25:140
7450940,0irq/46-4a10000029412-1kworker/u3:220:09:190
1437129312,0sleep014412-21/usr/sbin/munin00:05:090
7450910,0irq/46-4a10000031345-21fw_conntrack20:10:010
7450910,0irq/46-4a10000025387-21runrttasks23:02:330
7450910,0irq/46-4a1000001747-21runrttasks20:19:310
7450910,0irq/46-4a10000014930-21users19:20:410
7450900,0irq/46-4a1000008158-21runrttasks23:46:210
7450900,0irq/46-4a10000027382-21sendmail-msp20:00:040
7450900,0irq/46-4a10000013764-21latency_hist20:54:340
7450890,0irq/46-4a100000438-21snmpd22:49:100
7450890,0irq/46-4a10000028300-21mailstats23:10:230
7450890,0irq/46-4a10000020560-21sendmail-msp19:39:440
7450890,0irq/46-4a10000016236-21open_files22:35:220
7450890,0irq/46-4a10000015987-21fw_conntrack21:00:040
7450890,0irq/46-4a10000012649-21irqstats00:00:140
7450880,0irq/46-4a10000094122sleep020:40:260
7450880,0irq/46-4a1000009120-21tune2fs22:14:590
7450880,0irq/46-4a1000005159-21munin-run22:04:310
7450880,0irq/46-4a10000030862-21wc21:44:340
7450880,0irq/46-4a10000030574-21runrttasks21:43:000
7450880,0irq/46-4a10000027382-21sendmail-msp19:59:350
7450880,0irq/46-4a10000023262-21sensors_temp19:45:260
7450880,0irq/46-4a10000021165-21irqstats22:50:070
7450880,0irq/46-4a10000017931-21ntpq21:05:190
7450880,0irq/46-4a10000013873-21aten_r4power_en22:29:420
7450880,0irq/46-4a10000013594-21runrttasks19:18:450
7450880,0irq/46-4a10000010246-21grep19:09:580
7450870,0irq/46-4a1000008591-21sendmail-msp20:39:370
7450870,0irq/46-4a1000007864-21sensors22:10:250
7450870,0irq/46-4a1000006251-21timerandwakeup23:40:380
7450870,0irq/46-4a1000003558-21/usr/sbin/munin23:35:170
7450870,0irq/46-4a10000029447-21df_abs23:14:510
7450870,0irq/46-4a10000029033-21kworker/u2:200:19:340
7450870,0irq/46-4a10000020746-21aten_r4power_vo21:14:440
7450870,0irq/46-4a10000019617-21/usr/sbin/munin19:35:170
7450870,0irq/46-4a10000018282-21sed19:30:310
7450870,0irq/46-4a10000013677-21kworker/u2:421:39:330
7450870,0irq/46-4a10000011546-21runrttasks20:45:580
7450870,0irq/46-4a1000001093-21threads23:25:270
7450860,0irq/46-4a1000009554-21mailstats23:50:240
7450860,0irq/46-4a100000438-21snmpd20:58:260
7450860,0irq/46-4a10000026635-21mailstats21:30:240
7450860,0irq/46-4a10000024677-21load21:25:110
7450860,0irq/46-4a10000022808-21/usr/sbin/munin22:55:030
7450860,0irq/46-4a10000022560-21sh00:29:490
7450860,0irq/46-4a10000022207-21kworker/u2:000:34:350
7450860,0irq/46-4a10000021448-1kworker/u3:221:20:000
7450860,0irq/46-4a10000019473-21interrupts00:20:110
7450860,0irq/46-4a1000001524-1kworker/u3:121:54:410
7450860,0irq/46-4a10000013601-21seq22:28:520
7450850,0irq/46-4a1000005632-21fschecks_count22:04:570
7450850,0irq/46-4a10000027016-21seq23:06:540
7450850,0irq/46-4a10000020643-21seq00:24:370
7450850,0irq/46-4a10000019825-21/usr/sbin/munin21:10:260
7450850,0irq/46-4a1000001321-1kworker/u3:123:31:500
7450850,0irq/46-4a10000011972-21cron22:24:300
7450850,0irq/46-4a1000001117-21timerandwakeup21:50:270
7450840,0irq/46-4a10000018651-1kworker/u3:122:43:310
7450830,0irq/46-4a1000009459-1kworker/u3:119:26:290
7450830,0irq/46-4a1000006110-21mailstats20:30:240
7450830,0irq/46-4a10000010410-21wget23:54:410
7450820,0irq/46-4a100000312092sleep023:19:540
7450820,0irq/46-4a10000014921-1kworker/u3:100:10:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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