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2025-06-29 - 02:05
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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 Sun Jun 29, 2025 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74501860,0irq/46-4a10000018207-21runrttasks18:54:180
18505998658,0cyclictest0-21swapper23:27:570
18505998558,0cyclictest0-21swapper00:25:150
18505998557,0cyclictest0-21swapper20:21:310
269672848,0sleep026993-21modprobe00:06:190
18505998458,0cyclictest0-21swapper20:00:520
7450830,0irq/46-4a10000013309-21kworker/u2:121:51:480
7350830,0irq/45-4a1000006844-21cut21:31:550
7350830,0irq/45-4a10000024569-21cstates19:11:430
7450820,0irq/46-4a10000031972-21cron22:46:180
7450820,0irq/46-4a10000030224-1kworker/u3:420:18:250
7350820,0irq/45-4a10000015115-21munin-node23:31:300
182222827,0sleep018225-21meminfo20:27:080
7450810,0irq/46-4a1000009764-21snmpd20:39:140
7450810,0irq/46-4a10000032758-1kworker/u3:421:13:310
7450810,0irq/46-4a10000030941-21fschecks_time00:16:530
7450810,0irq/46-4a10000021835-21kworker/u2:123:51:510
7450800,0irq/46-4a1000005197-21runrttasks21:27:000
7450800,0irq/46-4a1000003602-21chrt22:57:020
7450800,0irq/46-4a10000030217-21memory19:27:590
7450800,0irq/46-4a10000028612-21seq21:01:320
7450800,0irq/46-4a10000018449-21seq22:06:340
7450800,0irq/46-4a10000018292-21latency_hist22:06:190
7450800,0irq/46-4a1000001470-21wget22:51:410
7450800,0irq/46-4a10000010594-1kworker/u3:020:11:520
7350800,0irq/45-4a1000006018-21fschecks_time19:51:560
7350800,0irq/45-4a10000031096-21pluginstate21:07:180
7350800,0irq/45-4a10000020368-21unixbench_singl20:32:240
7350800,0irq/45-4a1000001-21init19:04:580
301162800,0chrt28298-1kworker/u3:100:14:020
18505998055,0cyclictest0-21swapper23:24:380
7450790,0irq/46-4a1000009856-21seq21:41:310
7450790,0irq/46-4a1000009764-21snmpd23:40:290
7450790,0irq/46-4a10000026063-21/usr/sbin/munin19:16:590
7450790,0irq/46-4a10000018830-21sed23:41:490
7450790,0irq/46-4a1000001754-21fw_conntrack21:17:010
7450790,0irq/46-4a10000010451-21runrttasks20:05:090
7350790,0irq/45-4a10000024215-21runrttasks20:47:150
222862797,0sleep022288-21irqstats20:42:000
7450780,0irq/46-4a1000009615-1kworker/u3:022:21:460
7450780,0irq/46-4a1000009440-21runrttasks21:39:160
7450780,0irq/46-4a10000031622-1kworker/u3:023:18:580
7450780,0irq/46-4a10000028465-21ntpq19:22:150
7450780,0irq/46-4a10000028180-1kworker/u3:221:01:190
7450780,0irq/46-4a10000027530-21grep00:06:540
7450780,0irq/46-4a10000025714-1kworker/u3:120:52:140
7450780,0irq/46-4a10000022352-1kworker/u3:019:07:230
7450780,0irq/46-4a10000021835-21kworker/u2:100:01:200
7450780,0irq/46-4a10000019571-21awk18:57:210
7450780,0irq/46-4a1000001797-21runrttasks19:39:320
7450780,0irq/46-4a10000011964-21chrt21:46:540
18505997852,0cyclictest0-21swapper23:10:490
113352787,0sleep011373-21meminfo20:07:060
7450770,0irq/46-4a1000008598-21fschecks_count23:11:520
7450770,0irq/46-4a1000005811-21timerwakeupswit23:02:260
7450770,0irq/46-4a1000004326-21perl19:46:550
7450770,0irq/46-4a10000030223-1kworker/u3:319:31:530
7450770,0irq/46-4a10000029889-1kworker/u3:122:46:470
7450770,0irq/46-4a1000002781-21/usr/sbin/munin19:42:070
7450770,0irq/46-4a10000027337-21diskstats22:31:550
7450770,0irq/46-4a1000002666-1kworker/u3:021:24:360
7450770,0irq/46-4a10000020169-21runrttasks22:11:360
7450770,0irq/46-4a10000018626-1kworker/u3:023:47:090
7450760,0irq/46-4a10000024784-1kworker/u3:122:27:230
7450760,0irq/46-4a10000019944-1kworker/u3:122:16:400
7450760,0irq/46-4a10000014983-21runrttasks21:56:270
7450750,0irq/46-4a10000026575-1kworker/u3:022:37:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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