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2025-07-09 - 08:48
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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 Wed Jul 09, 2025 00:43:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21374211317,22sleep021391-21df19:07:110
2588210314,16sleep02606-21munin-node19:47:490
15395210314,15sleep03217-21snmpd23:47:230
13929210114,15sleep013927-21ntp_states22:02:380
21335210015,16sleep021383-21aten_r4power_po20:47:090
18889210014,16sleep018907-21munin-node23:57:440
10184210014,16sleep010190-21entropy20:12:160
383729914,16sleep03854-21if_err_eth019:52:200
2136229914,16sleep021364-21latency_hist00:06:560
1710029914,15sleep017102-21ntpq20:32:400
3171329814,16sleep031738-21proc_pri21:17:440
2673429814,16sleep026744-21ntp_states19:22:360
2289729814,16sleep022903-21sadc22:31:540
2966629714,16sleep029669-21df22:52:100
2374529714,16sleep023743-21ntp_states00:12:380
22845999714,73cyclictest20478-21mailstats20:42:460
22845999714,73cyclictest19738-21date22:21:570
50929614,16sleep0577-21fschecks_time23:02:170
3138429614,15sleep031396-21iostat19:37:240
3143229514,67sleep031461-21fschecks_count00:37:190
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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