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2026-07-14 - 01:00
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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 Jul 13, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502380,0irq/46-4a10000028116-1kworker/u3:107:06:080
30813999574,0cyclictest0-21swapper07:24:310
30813999573,0cyclictest0-21swapper09:14:590
30813999465,0cyclictest0-21swapper11:54:470
7450930,0irq/46-4a1000007468-21munin-run07:33:570
30813999373,0cyclictest0-21swapper10:29:420
30813999369,0cyclictest0-21swapper08:14:120
7450920,0irq/46-4a1000002334-21munin-run08:53:570
7450920,0irq/46-4a10000022491-1kworker/u3:011:28:360
7450920,0irq/46-4a10000016017-21sendmail-msp07:58:560
7350910,0irq/45-4a1000005507-1kworker/u3:209:07:140
7350910,0irq/45-4a10000024068-1kworker/u3:209:59:450
30813999158,0cyclictest0-21swapper09:49:110
7450900,0irq/46-4a10000023579-21meminfo08:19:420
39182900,0sleep03740-1kworker/u3:008:58:090
30813999058,0cyclictest0-21swapper10:04:540
30813999058,0cyclictest0-21swapper07:49:490
262612900,0chrt25982-1kworker/u3:011:38:570
7450890,0irq/46-4a1000009988-21ntp_states12:24:460
7450890,0irq/46-4a100000401-1kworker/u3:010:24:000
7450890,0irq/46-4a10000027514-21runrttasks11:40:280
7450890,0irq/46-4a10000014742-21/usr/sbin/munin09:29:210
7450890,0irq/46-4a10000012687-21/usr/sbin/munin12:34:130
7350890,0irq/45-4a1000004600-21fw_forwarded_lo12:09:280
30813998958,0cyclictest0-21swapper07:14:550
30813998957,0cyclictest0-21swapper08:34:310
30813998955,0cyclictest0-21swapper11:44:330
30813998953,0cyclictest0-21swapper07:44:220
7450880,0irq/46-4a1000008329-21proc_pri07:34:460
7450880,0irq/46-4a1000007927-21fschecks_count10:44:240
7450880,0irq/46-4a1000006450-21meminfo12:14:370
7450880,0irq/46-4a10000031610-21aten_r4power_vo08:44:100
7450880,0irq/46-4a10000031393-21sendmail-msp10:19:110
7450880,0irq/46-4a10000031393-21sendmail-msp10:19:000
7450880,0irq/46-4a1000002917-21/usr/sbin/munin12:04:330
7450880,0irq/46-4a10000028277-21df10:09:130
7450880,0irq/46-4a10000019635-21aten_r4power_vo11:19:090
7450880,0irq/46-4a10000018260-21seq11:14:250
7450880,0irq/46-4a10000017432-1kworker/u3:108:01:520
7450880,0irq/46-4a10000013612-21chrt09:24:510
7450880,0irq/46-4a10000012661-21sed09:23:590
30813998855,0cyclictest0-21swapper07:09:460
30813998853,0cyclictest0-21swapper11:49:160
7450870,0irq/46-4a1000009843-21runrttasks07:39:380
7450870,0irq/46-4a1000009480-21df10:49:110
7450870,0irq/46-4a1000007393-1kworker/u3:012:20:330
7450870,0irq/46-4a1000004330-21cpu08:59:100
7450870,0irq/46-4a10000026981-21memory08:29:400
7450870,0irq/46-4a10000023618-21seq09:54:450
7450870,0irq/46-4a10000019306-21chrt09:43:110
7450870,0irq/46-4a10000018389-21kernelversion08:04:350
7450870,0irq/46-4a10000013413-21ntpq10:59:530
7450870,0irq/46-4a10000011679-21ntpq10:54:440
7350870,0irq/45-4a10000021112-21idleruntime-cro08:13:560
7350870,0irq/45-4a1000001353-21meminfo11:59:430
30813998756,0cyclictest0-21swapper08:24:280
7450860,0irq/46-4a100000438-21snmpd07:19:500
7450860,0irq/46-4a1000004180-21wget10:34:050
7450860,0irq/46-4a10000030331-21/usr/sbin/munin08:39:370
7450860,0irq/46-4a10000023970-21grep11:29:560
7450860,0irq/46-4a10000017661-21cron11:13:540
7450860,0irq/46-4a10000016829-21/usr/sbin/munin09:34:440
7450860,0irq/46-4a10000011627-21nfs4_client12:29:420
30813998665,0cyclictest0-21swapper09:44:260
7450850,0irq/46-4a1000007261-1kworker/u3:109:09:260
7450850,0irq/46-4a1000006083-21df10:39:120
7450850,0irq/46-4a10000014463-21wget11:04:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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