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2026-04-14 - 05:32
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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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack9slot4.osadl.org (updated Tue Apr 14, 2026 00:43:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19079111979sleep0-21swapper/114:07:581
191529911333cyclictest29731-21chrt16:23:340
191529910927cyclictest0-21swapper/019:17:490
191529910829cyclictest27019-21/usr/sbin/munin16:14:060
191529910829cyclictest19466-21latency_hist15:52:560
191529910731cyclictest6034-21fschecks_time15:08:270
191529910723cyclictest10439-21latency_hist17:07:540
69501060irq/18-mmc00-21swapper/014:07:470
191529910641cyclictest13906-21latency_hist19:02:490
191529910630cyclictest32308-21latency_hist18:17:510
191529910628cyclictest15467-21latency_hist19:07:500
191529910524cyclictest28528-21missed_timers18:03:310
191529910429cyclictest22281-21missed_timers17:43:320
191529910323cyclictest316-21runrttasks18:48:310
235501020irq/18-spi_topc1915299cyclictest16:08:150
191529910162cyclictest0-21swapper/015:43:250
191529910125cyclictest1183-21tune2fs14:53:270
191529910026cyclictest0-21swapper/017:48:210
191529910023cyclictest0-21swapper/016:33:340
19152999931cyclictest2975-21latency_hist18:27:510
19152999830cyclictest20082-21ntp_kernel_err14:08:390
19152999828cyclictest30054-21latency_hist14:42:570
19152999822cyclictest0-21swapper/014:37:580
1915299979cyclictest0-21swapper/019:23:160
19152999722cyclictest23533-21needreboot16:03:350
19152999618cyclictest0-21swapper/017:27:050
19152999616cyclictest0-21swapper/017:27:530
19152999528cyclictest13561-21latency_hist17:17:530
19152999525cyclictest22850-21tune2fs14:18:280
1915299949cyclictest0-21swapper/019:13:290
1915299949cyclictest0-21swapper/015:53:380
1915299949cyclictest0-21swapper/015:28:260
1915299948cyclictest0-21swapper/014:17:110
1915299948cyclictest0-21swapper/014:17:110
19152999434cyclictest23280-21latency_hist19:32:490
19152999424cyclictest0-21swapper/018:37:500
1915299939cyclictest0-21swapper/015:03:260
1915299936cyclictest0-21swapper/019:09:510
1915299929cyclictest0-21swapper/014:48:280
1915299928cyclictest0-21swapper/016:38:380
19152999265cyclictest8045-21/usr/sbin/munin16:58:280
19152999225cyclictest0-21swapper/017:12:530
1915299919cyclictest0-21swapper/014:28:280
19152999129cyclictest9220-21latency_hist18:47:510
19152999120cyclictest0-21swapper/015:17:560
19152999119cyclictest0-21swapper/015:33:260
23550900irq/18-spi_topc1915299cyclictest19:33:190
1915299909cyclictest0-21swapper/016:19:070
1915299909cyclictest0-21swapper/015:18:260
1915299908cyclictest0-21swapper/014:43:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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