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2026-04-11 - 22:12
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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 Sat Apr 11, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502670,0irq/46-4a10000019047-1kworker/u3:007:03:490
7350920,0irq/45-4a1000002425-21diskstats07:46:040
20210999259,0cyclictest0-21swapper12:01:300
20210999259,0cyclictest0-21swapper07:56:160
20210999258,0cyclictest0-21swapper10:06:350
20210999257,0cyclictest0-21swapper11:31:210
7450900,0irq/46-4a10000031897-21ntpq07:36:320
7450900,0irq/46-4a1000002784-21/usr/sbin/munin10:56:280
20210999057,0cyclictest0-21swapper08:21:340
20210999057,0cyclictest0-21swapper08:06:170
7450890,0irq/46-4a1000008351-1kworker/u3:209:39:210
7450890,0irq/46-4a10000021353-21fschecks_time10:16:080
7450890,0irq/46-4a10000020648-1kworker/u3:108:44:090
236962897,0sleep023697-21users08:46:420
20210998958,0cyclictest0-21swapper12:26:040
20210998958,0cyclictest0-21swapper10:10:580
20210998955,0cyclictest0-21swapper12:21:300
20210998955,0cyclictest0-21swapper10:50:550
8742880,0sleep032332-1kworker/u3:107:41:110
7450880,0irq/46-4a10000021052-21awk07:06:320
7450880,0irq/46-4a10000017821-21/usr/sbin/munin11:41:040
7450880,0irq/46-4a1000001070-21nfs4_client09:16:250
48452880,0chrt4645-1kworker/u3:209:26:380
308482880,0chrt30578-1kworker/u3:207:34:170
20210998855,0cyclictest0-21swapper08:51:420
20210998855,0cyclictest0-21swapper07:11:510
20210998853,0cyclictest0-21swapper09:06:140
20210998852,0cyclictest0-21swapper10:01:140
7450870,0irq/46-4a100000460-21snmpd07:26:250
7450870,0irq/46-4a10000032304-21chrt09:12:100
7450870,0irq/46-4a10000028455-21ntp_states12:11:290
7450870,0irq/46-4a10000028146-21fschecks_time10:36:070
7450870,0irq/46-4a10000027257-21chrt12:07:430
7450870,0irq/46-4a10000024882-21chrt07:16:180
7450870,0irq/46-4a10000022846-21/usr/sbin/munin10:20:570
7450870,0irq/46-4a10000017762-21df_abs08:31:000
7450870,0irq/46-4a10000013728-21chrt09:54:010
20210998756,0cyclictest0-21swapper07:51:070
20210998755,0cyclictest0-21swapper08:25:590
7450860,0irq/46-4a1000008608-21chrt11:13:570
7450860,0irq/46-4a1000005739-21df11:05:540
7450860,0irq/46-4a10000031533-21fschecks_count10:46:060
7450860,0irq/46-4a10000029230-21runrttasks09:04:570
7450860,0irq/46-4a10000026725-21ntp_kernel_pll_07:21:290
7450860,0irq/46-4a10000019721-21cat11:46:190
7450860,0irq/46-4a10000012310-21latency_hist08:15:430
7450860,0irq/46-4a10000011081-21fschecks_time09:46:100
7350860,0irq/45-4a10000020208-21cyclictest09:30:580
20210998656,0cyclictest0-21swapper08:01:340
20210998654,0cyclictest0-21swapper09:21:050
20210998653,0cyclictest0-21swapper11:26:030
20210998653,0cyclictest0-21swapper10:26:260
20210998650,0cyclictest0-21swapper08:56:110
7450850,0irq/46-4a1000009623-21/usr/sbin/munin11:16:270
7450850,0irq/46-4a1000009289-21/usr/sbin/munin09:41:050
7450850,0irq/46-4a10000030108-21missed_timers10:41:260
7450850,0irq/46-4a1000002931-21/usr/sbin/munin12:31:330
7450850,0irq/46-4a10000012789-21grep08:16:100
7350850,0irq/45-4a10000014249-21grep09:55:540
20210998562,0cyclictest0-21swapper11:51:320
20210998552,0cyclictest0-21swapper11:01:200
7450840,0irq/46-4a10000029975-21if_eth012:16:150
7450840,0irq/46-4a10000026851-21awk10:31:320
7450840,0irq/46-4a10000010657-21wc11:20:440
7350840,0irq/45-4a10000020208-21cyclictest08:36:240
230882848,0sleep023089-21fw_conntrack11:56:110
7450830,0irq/46-4a10000016127-21/usr/sbin/munin11:36:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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