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2026-06-26 - 15:34
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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 Jun 26, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
74502690,0irq/46-4a100000292392sleep007:07:060
7350930,0irq/45-4a10000032106-1kworker/u3:108:54:430
29591999357,0cyclictest0-21swapper09:00:410
7450920,0irq/46-4a1000003800-1kworker/u3:010:40:330
7450920,0irq/46-4a10000026917-21/usr/sbin/munin08:34:480
29591999259,0cyclictest0-21swapper10:30:360
29591999258,0cyclictest0-21swapper11:34:520
29591999256,0cyclictest0-21swapper09:50:440
7450910,0irq/46-4a1000003475-21meminfo10:35:250
7450910,0irq/46-4a10000023864-21if_err_eth010:00:160
7450900,0irq/46-4a1000007856-21latency_hist10:49:360
7450900,0irq/46-4a1000005724-21users09:05:350
7450900,0irq/46-4a1000003608-21/usr/sbin/munin07:25:210
7450900,0irq/46-4a10000014670-21chrt09:33:590
7450900,0irq/46-4a10000012990-21awk11:04:370
7350900,0irq/45-4a10000022341-21ls08:20:210
66492900,0chrt2283-1kworker/u3:112:20:150
29591999057,0cyclictest0-21swapper07:34:500
29591999055,0cyclictest0-21swapper11:34:380
99532890,0chrt9163-1kworker/u3:009:19:500
7450890,0irq/46-4a1000003873-1kworker/u3:207:30:420
7450890,0irq/46-4a10000027458-21ntpq10:10:240
7450890,0irq/46-4a10000026563-21chrt08:33:240
7450890,0irq/46-4a10000024061-21memory08:25:190
7350890,0irq/45-4a10000016146-1kworker/u3:009:37:470
29591998957,0cyclictest0-21swapper07:10:300
29591998954,0cyclictest0-21swapper07:45:400
7450880,0irq/46-4a1000009156-21chrt09:15:440
7450880,0irq/46-4a100000840-21seq10:28:070
7450880,0irq/46-4a1000005823-1kworker/u3:012:27:520
7450880,0irq/46-4a100000438-21snmpd12:30:220
7450880,0irq/46-4a1000003291-21grep12:10:150
7450880,0irq/46-4a10000020048-21wget08:14:460
7450880,0irq/46-4a10000019845-21seq09:49:360
7450880,0irq/46-4a1000001794-1kworker/u3:007:24:010
7450880,0irq/46-4a10000017894-1kworker/u3:208:07:550
7450880,0irq/46-4a10000015124-21df07:59:540
7450880,0irq/46-4a1000001265-21df12:04:530
7450880,0irq/46-4a10000011934-21fw_conntrack07:50:060
7350880,0irq/45-4a1000007451-1kworker/u3:109:10:550
29591998855,0cyclictest0-21swapper08:45:270
29591998855,0cyclictest0-21swapper07:16:060
7450870,0irq/46-4a100000990-21ls12:04:390
7450870,0irq/46-4a1000004660-21df12:14:520
7450870,0irq/46-4a100000438-21snmpd11:54:540
7450870,0irq/46-4a10000032206-21df_abs08:49:540
7450870,0irq/46-4a10000029218-21/usr/sbin/munin10:15:320
7450870,0irq/46-4a10000028955-21tune2fs08:40:060
7450870,0irq/46-4a10000028581-21/usr/sbin/munin11:49:540
7450870,0irq/46-4a10000022130-21fw_forwarded_lo09:55:150
7450870,0irq/46-4a10000016681-21/usr/sbin/munin09:39:530
7450870,0irq/46-4a10000015015-21df11:09:540
7450870,0irq/46-4a10000014107-21grep11:05:360
7450870,0irq/46-4a10000011605-21aten_r4power_vo09:24:500
7450870,0irq/46-4a10000010943-1kworker/u3:108:10:130
7350870,0irq/45-4a10000025253-21df11:40:030
7450860,0irq/46-4a1000009151-1kworker/u3:210:55:010
7450860,0irq/46-4a1000008384-21cut10:50:050
7450860,0irq/46-4a100000438-21snmpd12:35:230
7450860,0irq/46-4a10000027840-21runrttasks11:45:560
7450860,0irq/46-4a10000025136-21aten_r4power_en10:04:470
7450860,0irq/46-4a10000018966-21awk11:20:350
7450860,0irq/46-4a10000018123-21sendmail-msp11:19:380
7450860,0irq/46-4a10000013357-21/usr/sbin/munin07:54:510
7350860,0irq/45-4a1000008544-21fw_conntrack07:40:120
7450850,0irq/46-4a10000030315-21aten_r4power_vo10:19:520
7450840,0irq/46-4a10000021029-21users11:25:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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