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2026-08-31 - 06:12
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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 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
7450850,0irq/46-4a10000030440-21fschecks_time22:54:340
7450850,0irq/46-4a10000025074-21df_abs00:14:250
7450850,0irq/46-4a10000024300-21runrttasks00:10:480
7450850,0irq/46-4a10000022487-21awk00:05:160
7450850,0irq/46-4a10000021550-21aten_r4power_cu20:54:140
7450850,0irq/46-4a10000012790-21sendmail-msp23:39:420
7450850,0irq/46-4a10000012212-21sort22:00:200
7350850,0irq/45-4a10000026639-21seq21:09:140
7350850,0irq/45-4a10000014721-21aten_r4power_vo23:44:190
7350850,0irq/45-4a10000010148-21modprobe23:29:510
233712857,0sleep023396-21wget19:24:170
207252850,0chrt19003-1kworker/u3:219:15:180
7450840,0irq/46-4a1000006279-21sshd20:09:180
7450840,0irq/46-4a1000005332-21ls23:15:050
7450840,0irq/46-4a1000004314-21sendmail-msp21:39:180
7450840,0irq/46-4a10000031789-1kworker/u3:221:37:460
7450840,0irq/46-4a10000031605-21sendmail-msp22:59:260
7450840,0irq/46-4a10000030496-21seq00:29:440
7450840,0irq/46-4a10000030385-21grep19:44:240
7450840,0irq/46-4a10000028727-21fschecks_time22:49:330
7450840,0irq/46-4a10000025983-21/usr/sbin/munin19:30:060
7450840,0irq/46-4a10000021690-1kworker/u3:222:44:280
7450840,0irq/46-4a10000021479-1kworker/u3:119:56:460
7450840,0irq/46-4a10000021474-21sendmail-msp19:19:360
7450840,0irq/46-4a10000020834-21sed22:25:160
7450840,0irq/46-4a10000019351-21chrt20:46:170
7450840,0irq/46-4a10000016801-21fw_conntrack22:14:370
7450840,0irq/46-4a10000010973-1kworker/u3:222:19:490
202802840,0sleep016311-1kworker/u3:120:49:380
17457998458,0cyclictest0-21swapper19:51:110
7450830,0irq/46-4a1000009464-21/usr/sbin/munin20:19:090
7450830,0irq/46-4a1000007846-21aten_r4power_cu21:49:150
7450830,0irq/46-4a100000454-21snmpd20:34:240
7450830,0irq/46-4a100000454-21snmpd00:00:140
7450830,0irq/46-4a1000004314-21sendmail-msp21:44:550
7450830,0irq/46-4a1000002765-21sshd23:09:160
7450830,0irq/46-4a10000024035-21mailstats22:35:040
7450830,0irq/46-4a10000019150-21ls19:14:040
7450830,0irq/46-4a10000010651-21chrt21:55:260
7350830,0irq/45-4a10000019207-21seq23:56:020
7450820,0irq/46-4a10000032095-21diskstats21:24:370
7450820,0irq/46-4a10000028265-21/usr/sbin/munin00:25:000
7450820,0irq/46-4a10000021911-21grep22:29:360
7450820,0irq/46-4a10000016042-1kworker/u3:223:53:180
7450820,0irq/46-4a1000001326-21diskstats21:29:340
7450820,0irq/46-4a10000011187-21/usr/sbin/munin23:35:100
7450810,0irq/46-4a10000014626-21runrttasks22:09:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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