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2026-04-27 - 11:31
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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 Apr 27, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502810,0irq/46-4a10000012-21ksoftirqd/019:01:320
274262940,0sleep026324-1kworker/u3:222:55:410
232312920,0sleep021361-1kworker/u3:100:19:140
7350890,0irq/45-4a10000030702-21perl21:30:320
321782890,0sleep030115-1kworker/u3:223:10:180
7350880,0irq/45-4a10000018383-21runrttasks19:20:150
304962887,0sleep030502-21df19:55:190
7350870,0irq/45-4a10000021616-21runrttasks00:15:030
110802870,0sleep010389-1kworker/u3:020:32:520
7450860,0irq/46-4a10000020345-21seq19:25:280
7450860,0irq/46-4a10000018539-21runrttasks00:05:180
136682860,0chrt11068-1kworker/u3:123:50:370
7450850,0irq/46-4a100000460-21snmpd23:24:540
7450850,0irq/46-4a10000021796-21wget19:30:150
7450850,0irq/46-4a10000014916-21munin-node19:10:310
7350850,0irq/45-4a10000016399-21runrttasks23:59:170
7450840,0irq/46-4a1000005347-21chrt21:50:520
7450840,0irq/46-4a100000460-21snmpd22:39:360
7450840,0irq/46-4a10000026759-21tr22:55:040
7450840,0irq/46-4a1000001704-21idleruntime20:05:380
7450840,0irq/46-4a10000011255-1kworker/u3:122:12:230
7350840,0irq/45-4a10000030178-21sendmail19:55:040
131952840,0sleep012916-1kworker/u3:120:40:090
7450830,0irq/46-4a1000008405-21grep20:25:290
7450830,0irq/46-4a1000004783-21egrep23:25:160
7450830,0irq/46-4a10000032276-21sed20:00:220
7450830,0irq/46-4a10000027394-21if_eth000:30:390
7450830,0irq/46-4a10000023570-21wget22:45:180
7450830,0irq/46-4a10000017642-21ls00:01:020
7450830,0irq/46-4a10000016514-21seq22:25:040
7450830,0irq/46-4a10000015726-21zcat20:45:580
7450830,0irq/46-4a10000011973-21/usr/sbin/munin23:45:380
7450830,0irq/46-4a10000011676-21seq20:35:180
7450820,0irq/46-4a10000032353-21fschecks_count21:35:280
7450820,0irq/46-4a10000023351-1kworker/u3:000:23:060
7450820,0irq/46-4a10000018792-21chrt22:30:370
7450820,0irq/46-4a10000018786-21sshd20:55:340
7450820,0irq/46-4a10000016327-1kworker/u3:020:50:380
7450820,0irq/46-4a1000001561-21seq21:40:270
7350820,0irq/45-4a10000018178-21runrttasks19:19:560
12501998256,0cyclictest0-21swapper00:25:140
7450810,0irq/46-4a1000009026-21awk22:01:000
7450810,0irq/46-4a1000007770-1kworker/u3:023:39:500
7450810,0irq/46-4a1000006588-21df20:20:210
7450810,0irq/46-4a1000006129-21runrttasks20:19:110
7450810,0irq/46-4a1000003237-21df_abs20:10:240
7450810,0irq/46-4a10000031111-21find23:05:570
7450810,0irq/46-4a10000029184-21seq21:25:460
7450810,0irq/46-4a10000026691-21chrt19:44:410
7450810,0irq/46-4a1000002607-21seq23:18:160
7450810,0irq/46-4a10000025371-21ls21:15:210
7450810,0irq/46-4a10000024284-21which21:10:590
7450810,0irq/46-4a10000022316-21grep21:05:410
7450810,0irq/46-4a10000016415-1kworker/u3:122:28:120
7450810,0irq/46-4a10000010944-21sshd23:41:370
7350810,0irq/45-4a1000009793-21aten_r4power_cu22:05:130
7450800,0irq/46-4a1000006677-21df_inode21:55:250
7450800,0irq/46-4a1000006373-21/usr/sbin/munin23:30:170
7450800,0irq/46-4a1000003581-1kworker/u3:221:46:020
7450800,0irq/46-4a10000028525-21latency_hist21:25:070
7450800,0irq/46-4a10000026848-21ls19:45:070
7450800,0irq/46-4a10000024070-21seq19:35:440
7450800,0irq/46-4a10000020601-21/usr/sbin/munin21:00:420
228282800,0chrt21454-1kworker/u3:122:41:040
7450790,0irq/46-4a10000012979-1kworker/u3:222:19:170
7450790,0irq/46-4a10000010641-1kworker/u3:019:09:220
7450770,0irq/46-4a10000028805-21/usr/sbin/munin23:00:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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