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2026-07-15 - 14:28
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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 Wed Jul 15, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501890,0irq/46-4a10000020145-21seq07:05:340
7450970,0irq/46-4a1000009777-21runrttasks09:44:240
20587999757,0cyclictest0-21swapper07:30:180
7450940,0irq/46-4a10000014358-21ls08:23:530
7350940,0irq/45-4a10000016139-21/usr/sbin/munin11:39:330
7450930,0irq/46-4a1000009317-21/usr/sbin/munin08:09:460
7350930,0irq/45-4a1000007501-21munin-run08:03:520
7350930,0irq/45-4a10000032233-21ntpq07:39:470
314362930,0sleep031024-1kworker/u3:207:38:530
20587999358,0cyclictest0-21swapper07:54:540
7450920,0irq/46-4a100000438-21snmpd09:29:240
7450920,0irq/46-4a10000023298-21diskstats08:49:170
20587999258,0cyclictest0-21swapper10:24:260
7450910,0irq/46-4a1000008117-1kworker/u3:212:21:430
7450910,0irq/46-4a1000003028-21runrttasks09:24:300
7450910,0irq/46-4a10000028537-21fw_forwarded_lo12:14:240
7450910,0irq/46-4a10000021567-21df_abs08:44:110
7450910,0irq/46-4a1000001219-21runrttasks10:54:250
7450910,0irq/46-4a10000011311-21df_abs09:49:110
20587999169,0cyclictest0-21swapper09:34:030
20587999161,0cyclictest0-21swapper12:29:500
20587999159,0cyclictest0-21swapper09:14:480
20587999158,0cyclictest0-21swapper11:09:400
7450900,0irq/46-4a1000008936-21runrttasks08:06:490
7450900,0irq/46-4a10000030273-21fw_forwarded_lo10:44:240
7450900,0irq/46-4a10000022634-1kworker/u3:011:59:430
7450900,0irq/46-4a10000011626-21meminfo08:14:320
7350900,0irq/45-4a10000028030-21latency_hist10:38:570
7350900,0irq/45-4a1000001017-21grep09:19:130
249992907,0sleep025000-21diskstats08:54:140
20587999060,0cyclictest0-21swapper10:29:510
20587999057,0cyclictest0-21swapper07:14:480
20587999055,0cyclictest0-21swapper08:34:400
7450890,0irq/46-4a1000003382-21sensors07:49:470
7450890,0irq/46-4a10000032196-21ntpdc12:24:380
7450890,0irq/46-4a10000031704-21cstates10:49:070
7450890,0irq/46-4a10000028122-21/usr/sbin/munin09:04:270
7450890,0irq/46-4a10000026685-21/usr/sbin/munin12:09:140
7450890,0irq/46-4a10000025285-21latency07:19:360
7450890,0irq/46-4a10000021902-21memory10:19:430
7450890,0irq/46-4a10000021857-21meminfo11:54:340
7450890,0irq/46-4a10000020999-21diskstats07:09:130
7450890,0irq/46-4a10000018140-21runrttasks10:09:110
7450890,0irq/46-4a10000017869-21hostname11:44:010
7350890,0irq/45-4a1000009616-21df_inode11:19:150
149302898,0sleep014960-21/usr/sbin/munin08:24:260
7450880,0irq/46-4a100000438-21snmpd08:59:020
7450880,0irq/46-4a10000020807-21chrt11:51:210
7450880,0irq/46-4a10000019555-21/usr/sbin/munin10:14:590
7450880,0irq/46-4a10000016455-21diskstats08:29:120
7450880,0irq/46-4a10000015307-21/usr/sbin/munin11:34:460
7350880,0irq/45-4a10000031825-1kworker/u3:109:40:450
7350880,0irq/45-4a10000030070-21df_abs09:09:100
20587998866,0cyclictest0-21swapper11:14:230
20587998857,0cyclictest0-21swapper07:24:380
7450870,0irq/46-4a100000772-21cat07:43:550
7450870,0irq/46-4a1000004288-21/usr/sbin/munin11:04:060
7450870,0irq/46-4a1000003805-21chrt11:01:540
7450870,0irq/46-4a10000028574-21seq10:39:280
7450870,0irq/46-4a10000025349-21ntpdc12:04:380
7450870,0irq/46-4a10000019465-21sendmail-msp08:39:390
7450870,0irq/46-4a10000015648-1kworker/u3:210:04:220
7450870,0irq/46-4a10000014332-21sendmail-msp09:59:410
7450870,0irq/46-4a10000014332-21sendmail-msp09:58:550
7450870,0irq/46-4a10000011031-21aten_r4power_cu11:23:590
7450860,0irq/46-4a1000002424-21cut12:33:540
7450860,0irq/46-4a10000013021-21df_inode11:29:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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