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2026-09-23 - 05:54
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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 50 highest latencies:
System rack3slot7.osadl.org (updated Wed Sep 23, 2026 00:43:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3140130ksoftirqd/028234-21kworker/0:218:55:290
17819816411cyclictest27121-21aten2.4_r3power23:50:170
17819815412cyclictest1998-21munin-node20:45:000
17819815311cyclictest5563-21aten2.4_r3power20:55:180
17819815212cyclictest3510-21munin-node00:20:200
17819815112cyclictest31251-21latency_hist20:34:510
17819815012cyclictest10412-21aten2.4_r3power22:55:290
17819814913cyclictest2659-21sendmail-mta21:45:390
17819814913cyclictest22227-21df20:05:070
17819814813cyclictest5660-21nfs_client19:10:190
17819814812cyclictest8458-21cpu21:05:130
17819814713cyclictest5754-21processes22:40:270
17819814712cyclictest7104-21aten2.4_r3power21:00:200
17819814712cyclictest3631-21mailstats19:05:000
17819814712cyclictest21273-21aten2.4_r3power20:00:270
17819814614cyclictest15303-21aten2.4-expect19:40:340
17819814613cyclictest13483-21aten2.4-expect21:20:230
17819814612cyclictest22315-21aten2.4_r3power21:50:110
17819814513cyclictest28485-21sed23:55:120
17819814512cyclictest2792-21runrttasks19:50:070
17819814512cyclictest26743-21munin-node20:20:300
17819814512cyclictest14370-21munin-node21:24:590
17819814512cyclictest12011-21cpuspeed19:30:270
17819814511cyclictest25203-21munin-node20:15:230
17819814413cyclictest23945-21df_inode20:10:130
17819814412cyclictest31726-21unixbench_singl22:20:150
17819814412cyclictest1938-21munin-node00:15:330
17819814412cyclictest12787-21munin-node23:05:140
17819814313cyclictest16808-21aten2.4_r3power21:30:310
17819814312cyclictest2792-21runrttasks19:02:500
17819814312cyclictest1971-21munin-node22:30:020
17819814213cyclictest8643-21iostat19:20:140
17819814213cyclictest781-21df_inode20:40:140
17819814213cyclictest29630-21latency_hist23:59:500
17819814213cyclictest25922-21missed_timers23:45:320
17819814212cyclictest7576-21aten2.4_r3power19:15:330
17819814212cyclictest4149-21needreboot20:50:230
17819814212cyclictest32083-21latency00:05:320
17819814212cyclictest28272-21munin-node22:10:330
17819814212cyclictest2792-21runrttasks23:32:540
17819814212cyclictest19607-21aten2.4-expect23:25:240
17819814212cyclictest10338-21needreboot21:10:230
17819814113cyclictest7948-21seq22:49:060
17819814113cyclictest27166-21nfs_client22:05:190
17819814113cyclictest23584-21munin-node23:40:150
17819814113cyclictest22723-21cpuspeed23:35:280
17819814113cyclictest14344-21munin-node23:10:150
17819814112cyclictest5606-21needreboot00:25:230
17819814112cyclictest2792-21runrttasks23:23:240
17819814112cyclictest17869-21sh21:35:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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