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2026-08-31 - 04:26
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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 20 highest latencies:
System rack4slot2.osadl.org (updated Mon Aug 31, 2026 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502910,0irq/46-4a10000015531-1kworker/u3:119:07:360
7350910,0irq/45-4a10000012918-21latency_hist22:04:090
299102910,0sleep023134-1kworker/u3:121:19:030
7350890,0irq/45-4a1000007781-21/usr/sbin/munin23:24:130
7350890,0irq/45-4a10000017253-21runrttasks20:40:140
286402890,0sleep021479-1kworker/u3:119:39:300
44632880,0sleep04304-1kworker/u3:120:04:110
7450870,0irq/46-4a10000032087-21seq00:34:320
7450870,0irq/46-4a10000026988-21grep00:19:420
7350870,0irq/45-4a10000031605-21sendmail-msp23:04:130
310252870,0sleep029965-1kworker/u3:021:20:210
238732870,0chrt23134-1kworker/u3:121:00:020
7450860,0irq/46-4a10000026919-21sed19:34:220
7450860,0irq/46-4a10000021690-1kworker/u3:222:39:580
7450860,0irq/46-4a10000014375-21seq20:32:360
7350860,0irq/45-4a1000003122-21fschecks_count19:59:400
7350860,0irq/45-4a10000025408-21runrttasks21:04:410
7350860,0irq/45-4a10000011838-21kernelversion20:24:510
7450850,0irq/46-4a1000009484-21sendmail-msp20:19:190
7450850,0irq/46-4a1000007143-21grep23:20:210
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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