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2026-09-02 - 12:42
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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 highest latencies:
System rack7slot8.osadl.org (updated Tue Sep 01, 2026 14:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9992223825,71sleep09609-21/usr/sbin/munin07:05:320
107939912093,17cyclictest31148-21dmidecode12:39:070
2981321076,12sleep029816-21cron12:35:020
1740321065,13sleep017401-21ntp_states09:40:430
107939910661,29cyclictest101ktimersoftd/008:12:150
459921055,11sleep04597-21diskstats10:55:220
311032995,11sleep030221-21apt-get08:26:030
268242985,11sleep025959-21apt-get10:15:580
10793999857,11cyclictest101ktimersoftd/008:45:230
10793999775,12cyclictest0-21swapper/007:10:030
1079399968,19cyclictest26271-21apt-get12:18:200
60092945,12sleep06010-21fw_forwarded_lo08:55:300
10793999436,40cyclictest0-21swapper/010:46:050
10793999432,29cyclictest101ktimersoftd/011:45:260
10793999349,28cyclictest101ktimersoftd/008:30:180
10793999338,36cyclictest0-21swapper/007:50:040
10793999136,38cyclictest0-21swapper/008:15:100
10793999133,40cyclictest0-21swapper/010:00:530
10793999045,30cyclictest3650irq/20-4900000010:52:110
10793999038,17cyclictest10250irq/56-4a10000007:39:380
10793999018,16cyclictest9419-21basename11:15:130
281162895,12sleep028120-21ntp_states10:20:380
10793998939,32cyclictest10190-21sshd09:11:180
260392885,11sleep00-21swapper/008:09:420
10793998847,26cyclictest101ktimersoftd/011:42:150
10793998833,39cyclictest26709-21kworker/u2:212:12:210
10793998748,10cyclictest101ktimersoftd/009:15:340
10793998742,28cyclictest12713-21seq11:27:310
10793998740,31cyclictest10250irq/56-4a10000011:00:090
10793998463,13cyclictest101ktimersoftd/011:40:030
10793998439,29cyclictest1276-21runrttasks10:26:100
10793998426,29cyclictest30258-21https08:25:050
10793998424,16cyclictest19355-21latency_hist09:50:040
10793998341,29cyclictest3650irq/20-4900000007:42:110
10793998335,15cyclictest10250irq/56-4a10000008:04:510
10793998318,16cyclictest11253-21awk11:21:110
10793998252,20cyclictest13352-21/usr/sbin/munin11:30:250
10793998250,15cyclictest10150irq/55-4a10000009:56:300
10793998150,13cyclictest101ktimersoftd/010:05:540
10793998150,13cyclictest10150irq/55-4a10000010:15:060
10793998130,35cyclictest4765-21fw_forwarded_lo08:50:270
10793998130,16cyclictest13507-21if_err_eth009:25:280
10793998117,32cyclictest787-21haveged10:45:030
10793998060,12cyclictest101ktimersoftd/009:20:240
10793998059,12cyclictest101ktimersoftd/010:35:220
10793998055,10cyclictest101ktimersoftd/012:00:290
10793998053,14cyclictest10150irq/55-4a10000009:00:510
10793998050,13cyclictest10150irq/55-4a10000011:50:170
10793998035,14cyclictest10250irq/56-4a10000009:30:160
10793998023,11cyclictest10150irq/55-4a10000008:00:010
10793997933,32cyclictest10250irq/56-4a10000012:25:330
10793997926,18cyclictest30760-21sendmail_mailtr10:30:480
10793997852,17cyclictest22526-21if_eth012:05:440
10793997849,13cyclictest10150irq/55-4a10000007:45:200
10793997848,14cyclictest10150irq/55-4a10000011:55:360
10793997840,27cyclictest0-21swapper/008:35:260
10793997832,31cyclictest754-21systemd-journal08:45:000
10793997820,13cyclictest15746-21latency_hist07:30:020
10793997813,13cyclictest8561-21/usr/sbin/munin09:05:310
10793997657,11cyclictest101ktimersoftd/007:30:240
10793997657,11cyclictest101ktimersoftd/007:20:240
10793997657,11cyclictest101ktimersoftd/007:15:220
10793997647,13cyclictest10150irq/55-4a10000009:50:300
10793997647,12cyclictest10150irq/55-4a10000011:05:330
10793997545,14cyclictest10150irq/55-4a10000009:35:410
10793997423,16cyclictest8131-21/usr/sbin/munin11:10:140
10793997346,11cyclictest101ktimersoftd/012:24:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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