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2026-03-13 - 14:36
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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 Fri Mar 13, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502560,0irq/46-4a10000029079-1kworker/u3:107:05:010
29413999369,0cyclictest0-21swapper10:07:450
29413999369,0cyclictest0-21swapper07:37:370
24012930,0sleep01325-1kworker/u3:108:57:300
29413999258,0cyclictest0-21swapper11:47:280
29413999159,0cyclictest0-21swapper11:22:320
29413999157,0cyclictest0-21swapper11:42:360
29413999067,0cyclictest0-21swapper09:12:360
29413999057,0cyclictest0-21swapper12:22:340
29413999057,0cyclictest0-21swapper07:32:310
29413999056,0cyclictest0-21swapper08:12:410
207842900,0sleep020402-1kworker/u3:108:17:010
7350890,0irq/45-4a10000023448-1kworker/u3:110:02:200
29413998959,0cyclictest0-21swapper09:17:360
29413998957,0cyclictest0-21swapper09:22:310
29413998957,0cyclictest0-21swapper07:52:190
7350880,0irq/45-4a10000019020-21/usr/sbin/munin09:46:590
7350880,0irq/45-4a1000001337-1kworker/u3:110:29:550
29413998855,0cyclictest0-21swapper09:41:480
29413998853,0cyclictest0-21swapper08:42:370
7450870,0irq/46-4a10000030053-21runrttasks07:07:220
7350870,0irq/45-4a1000005054-21runrttasks09:06:450
7350870,0irq/45-4a10000029411-21cyclictest09:36:150
29413998768,0cyclictest0-21swapper12:02:380
29413998763,0cyclictest0-21swapper09:56:530
29413998756,0cyclictest0-21swapper10:22:370
29413998755,0cyclictest0-21swapper07:47:460
7450860,0irq/46-4a10000017480-21diskstats11:17:070
29413998657,0cyclictest0-21swapper08:47:220
29413998655,0cyclictest0-21swapper08:07:270
29413998654,0cyclictest0-21swapper10:32:440
29413998654,0cyclictest0-21swapper09:42:340
29413998654,0cyclictest0-21swapper07:42:490
29413998653,0cyclictest0-21swapper07:17:440
29413998652,0cyclictest0-21swapper08:36:550
7450850,0irq/46-4a10000025708-21aten_r4power_cu08:31:550
7450850,0irq/46-4a10000012109-21aten_r4power_po11:01:570
7350850,0irq/45-4a1000009112-21if_eth010:52:210
7350850,0irq/45-4a1000003562-21aten_r4power_po12:11:580
29413998554,0cyclictest0-21swapper07:22:410
29413998553,0cyclictest0-21swapper10:37:250
29413998552,0cyclictest0-21swapper11:32:350
7450840,0irq/46-4a1000008916-21df_inode12:27:050
7450840,0irq/46-4a1000006273-21users10:42:450
7450840,0irq/46-4a10000030419-21runrttasks10:19:280
7450840,0irq/46-4a10000020870-21df_inode09:52:080
7450840,0irq/46-4a10000020573-21/usr/sbin/munin11:27:230
7450840,0irq/46-4a10000012863-21cat09:27:400
7350840,0irq/45-4a10000016890-21chrt08:05:510
278452846,0sleep027847-21fw_conntrack10:12:160
7450830,0irq/46-4a1000007256-21cut10:47:100
7450830,0irq/46-4a10000032113-21seq07:14:190
7450830,0irq/46-4a10000029478-21grep11:52:130
7450830,0irq/46-4a10000024564-1kworker/u3:011:39:300
7450830,0irq/46-4a10000010895-21grep10:57:230
54302836,0sleep05438-21df_abs12:17:030
29413998352,0cyclictest0-21swapper12:07:360
29413998351,0cyclictest0-21swapper08:22:230
29413998349,0cyclictest0-21swapper07:57:110
7450820,0irq/46-4a1000005260-21aten_r4power_po09:06:570
7450820,0irq/46-4a10000032140-21runrttasks11:59:340
7450820,0irq/46-4a1000001676-21sendmail-msp08:56:480
7450820,0irq/46-4a10000014189-21seq11:07:180
7450820,0irq/46-4a10000010777-21fw_conntrack12:32:150
7350820,0irq/45-4a10000024864-21sensors_temp08:27:380
29413998250,0cyclictest0-21swapper07:27:580
7450810,0irq/46-4a10000016299-21/usr/sbin/munin11:12:400
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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