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2026-04-21 - 07:02
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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: reduced 
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 100 highest latencies:
System rack3slot7.osadl.org (updated Tue Apr 21, 2026 00:43:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140220ksoftirqd/013451-21kworker/0:119:07:120
3140020ksoftirqd/013451-21kworker/0:119:10:000
194059814614cyclictest29394-21nfs_client21:25:290
14991380watchdog/019864-21df_inode22:40:220
14991370watchdog/02792-21runrttasks00:12:580
14991340watchdog/013608-21sh00:05:180
14991320watchdog/012200-21sed22:15:220
14991310watchdog/026382-21munin-node23:00:340
14991300watchdog/02792-21runrttasks20:28:370
14991270watchdog/021425-21df_inode00:30:220
14991270watchdog/017329-21cstates22:30:420
14991260watchdog/022904-21ntp_offset21:05:170
14991260watchdog/015554-21kernelversion22:25:340
14991240watchdog/030006-21runrttasks19:42:170
14991020watchdog/02792-21runrttasks20:40:530
14991010watchdog/02792-21runrttasks00:02:180
2234501000irq/11-eth07215-21mailstats23:45:080
2234501000irq/11-eth027562-21ntpq19:35:170
2234501000irq/11-eth016372sleep021:40:330
14991000watchdog/012790-21aten2.4_r3power20:30:450
1499990watchdog/025110-21aten2.4_r3power21:10:410
1499980watchdog/028159-21cat21:20:410
1499980watchdog/02792-21runrttasks23:14:340
1499980watchdog/023495-21cstates22:50:420
1499980watchdog/018197-21df20:50:130
1499960watchdog/05957-21df_inode23:40:220
1499960watchdog/030407-21munin-node21:30:290
1499950watchdog/05729-21munin-node21:55:090
1499950watchdog/023953-21seq19:23:130
223450940irq/11-eth032383-21unixbench_singl19:50:240
1499930watchdog/013440-21munin-node20:35:170
223450920irq/11-eth010552-21cut22:10:180
1499920watchdog/02792-21runrttasks20:47:330
223450910irq/11-eth07841-21needreboot22:00:320
1499910watchdog/01795-21sendmail_mailqu23:25:420
1499900watchdog/0208282sleep020:58:210
1499900watchdog/018463-21sh00:20:260
404428911sleep04070-21latency_hist21:49:590
2140428812sleep021421-21egrep21:00:200
1499870watchdog/04844-21aten2.4_r3power20:05:330
223450860irq/11-eth09109-21df_inode22:05:220
19405988612cyclictest30887-21aten2.4_r3power19:45:250
1499840watchdog/026204-21sensors_fan21:15:250
19405988215cyclictest28468-21seq23:08:030
19405988212cyclictest9697-21cstates20:20:430
19405988212cyclictest30826-21nfs_client23:15:270
1499820watchdog/021748-21vmstat19:15:290
2582028112sleep025826-21mailstats19:30:080
19405988114cyclictest2907-21cpu20:00:210
19405988114cyclictest24668-21nfs_client22:55:270
19405988113cyclictest9176-21aten2.4_r3power23:50:280
19405988113cyclictest3173-21uname23:30:330
19405988113cyclictest25047-21timerandwakeup19:25:410
19405988112cyclictest7271-21munin-node20:15:320
19405988112cyclictest4314-21ntp_offset23:35:180
19405988112cyclictest20187-21aten2.4_r3power00:25:330
19405988112cyclictest16914-21nfs_client00:15:260
19405988112cyclictest14476-21runrttasks22:22:010
19405988012cyclictest4160-21sendmail_mailtr21:50:080
19405988011cyclictest32762-21cstates23:20:410
19405987914cyclictest5950-21aten2.4_r3power20:10:170
19405987912cyclictest32467-21nfs_client21:35:280
19405987912cyclictest18451-21munin-node22:35:260
223450780irq/11-eth023763-21seq00:37:440
19405987813cyclictest10400-21df23:55:140
19405987812cyclictest21383-21df_inode22:45:180
19405987612cyclictest1806-21timerandwakeup19:55:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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