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2026-05-19 - 01:18
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack4slot3.osadl.org (updated Mon May 18, 2026 12:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2021928320,4sleep020217-21df07:15:430
2777921070,4sleep027780-21awk12:36:280
3014221030,4sleep030143-21sed11:05:480
2868929613,16sleep028716-21if_err_eth011:00:530
21675999620,66cyclictest18334-21seq12:08:380
21675999618,69cyclictest15706-21sh08:40:570
21675999615,72cyclictest3568-21runrttasks12:35:240
21675999615,72cyclictest3568-21runrttasks10:07:530
21675999614,72cyclictest4868-21which11:26:170
110529615,16sleep01106-21iostat_ios09:35:570
2882529514,16sleep028843-21open_files07:41:130
21675999515,71cyclictest18730-21seq08:50:470
21675999514,71cyclictest23994-21munin-node09:06:080
21675999514,71cyclictest10334-21seq10:05:100
21675999419,65cyclictest23701-21if_eth007:25:550
21675999414,71cyclictest3639-21sshd09:43:230
21675999414,71cyclictest21734-21latency_hist09:00:300
21675999414,71cyclictest14540-21munin-node10:16:200
21675999414,70cyclictest3568-21runrttasks12:17:230
3000329314,16sleep030006-21diskstats07:45:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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