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2025-11-29 - 18:31
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Sat Nov 29, 2025 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3994224492203,96sleep00-21swapper05:38:190
42839916815,108cyclictest8680-21apt-get08:25:520
42839916716,122cyclictest3876-21apt-get09:50:550
42839916419,102cyclictest15245-21apt-get10:26:020
42839916417,106cyclictest2280-21apt-get09:45:560
42839916320,114cyclictest23412-21apt-get09:10:560
42839916319,103cyclictest24427-21users10:52:240
42839916315,102cyclictest10386-21apt-get10:10:570
42839916218,118cyclictest31413-21apt-get07:55:540
42839916213,124cyclictest12542-21ntp_kernel_pll_08:36:590
42839916119,117cyclictest25188-21apt-get10:55:570
42839916112,122cyclictest11067-21grep08:32:110
42839916017,117cyclictest7114-21apt-get10:01:000
42839916017,103cyclictest32157-21ntp_states09:37:020
42839916017,101cyclictest16930-21apt-get10:30:530
42839916016,120cyclictest28212-21apt-get07:45:520
42839916014,120cyclictest26562-21apt-get07:40:580
42839916014,119cyclictest18580-21ssh08:55:570
42839915911,122cyclictest18675-21sed06:56:090
42839915832,100cyclictest29208-21ntpdc11:07:030
42839915819,114cyclictest13563-21apt-get10:20:530
42839915739,96cyclictest17863-21ssh08:52:250
42839915714,120cyclictest5438-21apt-get08:15:530
42839915714,117cyclictest27012-21df_inode09:21:290
42839915713,121cyclictest9127-21ssh10:06:360
42839915711,121cyclictest1546-21grep09:42:160
42839915617,96cyclictest1452-21users08:02:140
42839915617,115cyclictest11973-21apt-get10:16:010
42839915616,114cyclictest18501-21apt-get10:35:570
42839915614,119cyclictest15452-21ssh08:46:140
42839915613,118cyclictest19309-21/usr/sbin/munin07:01:310
42839915545,91cyclictest26887-21sh11:00:460
42839915516,99cyclictest6430-21users09:57:250
42839915516,99cyclictest14325-21ssh08:42:080
42839915515,100cyclictest28291-21apt-get09:25:590
42839915513,116cyclictest3766-21latency_hist08:10:420
42839915510,121cyclictest30164-21ls09:31:130
42839915437,99cyclictest20713-21sort09:01:540
42839915419,108cyclictest13906-21apt-get06:30:510
42839915417,116cyclictest20675-21memory10:41:540
42839915416,98cyclictest22920-21apt-get07:20:510
42839915416,96cyclictest25274-21ssh09:16:130
42839915413,99cyclictest21849-21apt-get10:46:030
42839915412,117cyclictest21806-21ssh09:05:550
42839915332,102cyclictest22247-21df_abs07:16:070
42839915318,111cyclictest13790-21munin-run06:30:350
42839915317,110cyclictest8487-21apt-get06:00:500
42839915314,99cyclictest29852-21ssh07:50:460
42839915310,118cyclictest7335-21awk05:51:400
42839915215,114cyclictest24738-21apt-get07:30:540
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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