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2026-04-07 - 07:04
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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 100 highest latencies:
System rack4slot2.osadl.org (updated Tue Apr 07, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502850,0irq/46-4a10000012-21ksoftirqd/019:01:370
305932940,0sleep020035-1kworker/u3:119:45:290
68432900,0sleep04768-1kworker/u3:123:20:540
244032887,0sleep024405-21fw_forwarded_lo00:11:210
7450870,0irq/46-4a10000012025-21wget23:36:000
85862860,0sleep08095-1kworker/u3:020:16:010
63252860,0sleep04557-1kworker/u3:021:42:340
7450850,0irq/46-4a10000030907-21wget22:56:040
7450850,0irq/46-4a10000027257-21sendmail-msp19:35:520
7450850,0irq/46-4a10000011221-21awk23:31:470
7450850,0irq/46-4a10000010502-21/usr/sbin/munin21:56:080
168432850,0chrt13397-1kworker/u3:020:39:440
7450840,0irq/46-4a100000460-21snmpd20:54:070
7450840,0irq/46-4a10000026297-21wc00:16:350
7450840,0irq/46-4a10000023108-21mailstats00:06:460
7450840,0irq/46-4a10000022098-21cron19:20:500
7450840,0irq/46-4a10000016514-21/usr/sbin/munin19:06:150
7450840,0irq/46-4a1000001612-21ls21:30:510
7450840,0irq/46-4a10000015168-21seq20:35:100
7350840,0irq/45-4a1000007703-21tr21:46:460
7350840,0irq/45-4a1000003845-21fschecks_time20:01:180
7350840,0irq/45-4a10000023098-21mailstats22:31:440
294932840,0chrt27096-1kworker/u3:122:51:180
108452846,0sleep010885-21meminfo20:21:290
7450830,0irq/46-4a1000009176-21meminfo23:26:330
7450830,0irq/46-4a1000008770-21df21:51:070
7450830,0irq/46-4a1000007303-21runrttasks20:11:210
7450830,0irq/46-4a100000460-21snmpd22:23:470
7450830,0irq/46-4a1000003803-21fschecks_count21:36:180
7450830,0irq/46-4a1000003532-21aten_r4power_vo23:11:040
7450830,0irq/46-4a10000029449-21fschecks_count00:26:160
7450830,0irq/46-4a10000029115-21wget21:16:030
7450830,0irq/46-4a10000023309-21seq19:21:500
7450830,0irq/46-4a1000002101-21fschecks_count23:06:160
7450830,0irq/46-4a10000020796-21df_abs00:01:090
7450830,0irq/46-4a10000020146-1kworker/u3:022:28:240
7450830,0irq/46-4a10000018422-21chrt20:43:410
7450830,0irq/46-4a10000016961-21cron22:15:490
7450830,0irq/46-4a10000014307-21seq23:41:300
7450830,0irq/46-4a10000013990-21df_inode22:06:130
7450830,0irq/46-4a10000012040-21aten_r4power_po20:26:010
284482830,0chrt27119-1kworker/u3:021:11:580
7450820,0irq/46-4a1000006306-21chrt23:17:160
7450820,0irq/46-4a10000031840-21chrt19:46:500
7450820,0irq/46-4a10000027441-21wget00:21:010
7450820,0irq/46-4a10000024685-21pluginstate19:26:440
7450820,0irq/46-4a10000023964-21/usr/sbin/munin22:36:090
7450820,0irq/46-4a10000022704-21fw_forwarded_lo20:56:260
7450820,0irq/46-4a1000002153-21tune2fs19:56:180
7450820,0irq/46-4a10000019849-21/usr/sbin/munin23:56:470
7450820,0irq/46-4a10000017709-21grep22:16:300
178162827,0sleep017838-21open_inodes23:51:400
7450810,0irq/46-4a1000006111-21ls20:06:460
7450810,0irq/46-4a100000364-21fschecks_count23:01:160
7450810,0irq/46-4a1000003311-21latency_hist21:35:510
7450810,0irq/46-4a10000032745-21sed19:51:090
7450810,0irq/46-4a10000032423-21cut00:35:540
7450810,0irq/46-4a10000030985-21cstates21:21:060
7450810,0irq/46-4a10000028213-21grep22:46:440
7450810,0irq/46-4a10000027333-21ls19:35:550
7450810,0irq/46-4a10000026002-21fschecks_count22:41:160
7450810,0irq/46-4a10000024259-21df_inode21:01:140
7450810,0irq/46-4a10000016544-21seq23:47:190
7450800,0irq/46-4a10000025939-21df_abs21:06:100
7450800,0irq/46-4a10000018415-21grep19:11:010
7450800,0irq/46-4a10000012837-21grep22:01:450
7350800,0irq/45-4a100000460-21snmpd20:48:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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