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2026-05-12 - 00:36
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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 May 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
745010380,0irq/46-4a1000009345-1kworker/u3:007:01:020
7450970,0irq/46-4a10000028198-21aten_r4power_cu07:54:400
7450950,0irq/46-4a10000019528-21awk12:14:300
7450950,0irq/46-4a10000011767-21ntp_kernel_pll_08:40:170
7450940,0irq/46-4a100000804-21cat09:44:330
7450940,0irq/46-4a1000004918-21/usr/sbin/munin09:55:150
7450940,0irq/46-4a100000460-21snmpd11:17:100
7450940,0irq/46-4a10000028180-21/usr/sbin/munin09:30:300
7450940,0irq/46-4a10000025716-21/usr/sbin/munin12:30:260
7450940,0irq/46-4a10000014990-21idleruntime12:00:030
7350940,0irq/45-4a10000023059-21/usr/sbin/munin10:50:340
7450930,0irq/46-4a1000009834-21fw_forwarded_lo10:10:010
7450930,0irq/46-4a1000008125-21fw_conntrack10:05:000
7450930,0irq/46-4a1000006164-21cstates09:59:440
7450930,0irq/46-4a1000006005-21aten_r4power_en08:24:410
7450930,0irq/46-4a1000003553-21chrt11:25:280
7450930,0irq/46-4a1000003085-21irqstats08:15:050
7450930,0irq/46-4a10000027302-21cat07:50:220
7450930,0irq/46-4a10000025662-21/usr/sbin/munin09:20:240
7450930,0irq/46-4a10000023592-21chrt09:15:060
7450930,0irq/46-4a10000020519-21sensors_temp07:30:240
7450930,0irq/46-4a10000018223-21runrttasks07:24:510
7450930,0irq/46-4a10000017960-21wget08:59:400
7450930,0irq/46-4a1000001629-21processes11:20:210
7450930,0irq/46-4a10000015859-21runrttasks08:52:460
7450930,0irq/46-4a10000015380-21sendmail_mailtr10:25:240
7450930,0irq/46-4a10000015139-21memory07:15:150
10385999371,0cyclictest0-21swapper10:15:130
7450920,0irq/46-4a1000009420-21aten_r4power_cu08:34:400
7450920,0irq/46-4a1000008822-21sshd08:31:050
7450920,0irq/46-4a10000030379-21if_err_eth008:00:040
7450920,0irq/46-4a1000003006-21fw_forwarded_lo09:50:020
7450920,0irq/46-4a10000028593-21tune2fs11:04:580
7450920,0irq/46-4a10000027077-21memory09:25:120
7450920,0irq/46-4a10000023551-21sshd07:40:050
7450920,0irq/46-4a10000022953-21runrttasks09:14:310
7450920,0irq/46-4a1000002148-21chrt08:12:230
7450920,0irq/46-4a10000021458-21runrttasks12:19:420
7450920,0irq/46-4a10000020716-21users10:40:290
7450920,0irq/46-4a10000019993-21sort12:14:550
7450920,0irq/46-4a10000016917-21ntp_offset07:20:170
7450920,0irq/46-4a10000016539-1kworker/u3:010:32:130
7450920,0irq/46-4a10000014378-21cron11:59:280
7450920,0irq/46-4a10000012994-21cpu07:10:030
1211429212,0sleep012160-21uptime11:50:280
7450910,0irq/46-4a1000009267-21latency_hist11:44:330
7450910,0irq/46-4a1000006202-21df11:34:480
7450910,0irq/46-4a1000004894-21missed_timers08:20:140
7450910,0irq/46-4a1000004697-21fschecks_time11:29:590
7450910,0irq/46-4a10000026912-21fschecks_time11:00:000
7450910,0irq/46-4a10000025476-21/usr/sbin/munin10:55:180
7450910,0irq/46-4a10000021799-21fw_conntrack10:45:000
7450910,0irq/46-4a10000020075-21fw_conntrack09:04:590
7450910,0irq/46-4a10000016748-21sshd08:55:050
7450910,0irq/46-4a10000016429-21cstates12:04:450
7450900,0irq/46-4a1000007868-21/usr/sbin/munin11:39:440
7450900,0irq/46-4a10000024968-21df07:44:470
7450900,0irq/46-4a10000023122-21aten_r4power_en12:24:420
7450900,0irq/46-4a10000022260-21/usr/sbin/munin07:35:250
7450900,0irq/46-4a10000018922-21/usr/sbin/munin10:35:260
7450900,0irq/46-4a10000013880-21vmstat08:45:300
7450900,0irq/46-4a10000010488-21runrttasks07:04:350
7450890,0irq/46-4a10000032532-21/usr/sbin/munin09:40:250
7450890,0irq/46-4a10000031965-21fschecks_time08:04:560
7450890,0irq/46-4a10000030599-21/usr/sbin/munin11:10:220
7450890,0irq/46-4a10000030283-21grep09:34:560
7450890,0irq/46-4a10000012782-21wc10:19:330
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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