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2026-05-18 - 11:13
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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 792 highest latencies:
System rack7slot8.osadl.org (updated Sun May 17, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14287227829,65sleep013848-21/usr/sbin/munin07:05:330
15036991777,36cyclictest1408-21nginx08:19:470
150369916850,13cyclictest10150irq/55-4a10000007:50:030
150369916341,31cyclictest3650irq/20-4900000010:57:120
150369916330,26cyclictest801-21dbus-daemon12:26:300
150369915740,18cyclictest787-21haveged09:10:500
150369915724,29cyclictest10250irq/56-4a10000007:20:110
150369915645,14cyclictest10150irq/55-4a10000007:51:260
150369915645,13cyclictest10150irq/55-4a10000010:40:010
150369915642,18cyclictest23067-21cpu07:40:200
150369915547,13cyclictest10150irq/55-4a10000009:05:420
150369915541,18cyclictest19127-21if_eth007:25:260
150369915448,15cyclictest24090-21seq09:46:140
150369915435,32cyclictest8273-21chrt08:45:370
15036991537,18cyclictest17025-21ntp_states09:20:400
150369915342,17cyclictest5676-21/usr/sbin/munin10:40:380
15036991527,16cyclictest6150-21apt-get08:42:150
150369915242,21cyclictest22711-21runrttasks09:41:390
150369915148,19cyclictest10150irq/55-4a10000011:15:200
150369915147,13cyclictest10150irq/55-4a10000011:37:050
150369915145,19cyclictest1490-21latency_hist10:25:030
15036991508,40cyclictest30874-21munin-run12:20:030
150369915045,18cyclictest15763-21runrttasks09:15:410
150369915044,14cyclictest10150irq/55-4a10000011:10:420
150369914947,14cyclictest17256-21awk11:25:380
150369914943,17cyclictest11829-21cpuspeed09:00:170
150369914940,18cyclictest24885-21aten_r7power_cu09:50:110
150369914935,21cyclictest27982-21sshd12:06:570
15036991486,14cyclictest25983-21apt-get09:57:110
150369914844,17cyclictest11779-21latency_hist11:05:040
150369914843,17cyclictest20552-21runrttasks09:35:180
150369914841,18cyclictest23301-21runrttasks11:50:190
150369914755,11cyclictest101ktimersoftd/011:20:260
150369914747,15cyclictest28908-21cat10:05:030
150369914738,18cyclictest29246-21runrttasks12:11:560
15036991469,18cyclictest31398-21ntp_states12:20:430
150369914646,13cyclictest10150irq/55-4a10000011:07:330
15036991457,29cyclictest32257-21fake-hwclock10:17:120
150369914545,15cyclictest4720-21cat08:35:090
150369914541,19cyclictest26036-21proc_pri12:00:440
150369914540,13cyclictest10150irq/55-4a10000011:44:140
150369914537,19cyclictest2045-21processes10:25:450
150369914536,22cyclictest754-21systemd-journal08:55:570
15036991438,21cyclictest18084-21diskstats09:25:220
150369914355,11cyclictest101ktimersoftd/007:55:230
150369914355,10cyclictest101ktimersoftd/008:35:070
150369914342,12cyclictest10150irq/55-4a10000007:17:030
150369914340,17cyclictest31234-21runrttasks08:10:430
150369914339,16cyclictest6872-21netstat10:45:340
150369914335,19cyclictest20316-21runrttasks07:30:220
150369914255,11cyclictest101ktimersoftd/011:50:020
150369914251,11cyclictest101ktimersoftd/010:05:300
150369914239,13cyclictest10150irq/55-4a10000007:35:320
15036991418,21cyclictest28742-21ntp_states08:00:390
150369914139,16cyclictest30730-21latency_hist08:10:020
150369914136,18cyclictest1975-21processes12:30:460
150369914110,38cyclictest0-21swapper/009:31:300
150369914043,15cyclictest1014-21grep08:20:150
150369914036,32cyclictest30897-21seq10:11:140
150369914032,21cyclictest15320-21runrttasks07:10:190
150369913952,10cyclictest101ktimersoftd/008:50:230
150369913853,11cyclictest101ktimersoftd/010:50:260
150369913853,10cyclictest101ktimersoftd/010:30:220
150369913843,12cyclictest10150irq/55-4a10000011:30:240
150369913650,12cyclictest101ktimersoftd/012:35:400
150369913551,11cyclictest101ktimersoftd/011:55:210
15036997910,17cyclictest2775-21users08:25:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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