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2026-09-04 - 15:12
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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 Fri Sep 04, 2026 02:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
9998220827,50sleep00-21swapper/019:05:460
105669910983,16cyclictest28785-21dmidecode00:31:120
105669910850,43cyclictest101ktimersoftd/021:18:180
105669910332,38cyclictest17117-21runrttasks19:31:380
105669910237,49cyclictest0-21swapper/000:09:400
105669910051,37cyclictest12690-21cmp23:30:230
10566999925,40cyclictest0-21swapper/021:35:080
10566999924,21cyclictest26619-21apt-get22:17:580
10566999855,33cyclictest3992-21runrttasks20:50:190
10566999835,43cyclictest0-21swapper/022:09:000
10566999756,32cyclictest16288-21aten_r7power_cu23:45:140
10566999729,29cyclictest1408-21nginx20:47:560
10566999720,23cyclictest13786-21diskstats19:20:340
10566999646,18cyclictest24093-21seq20:00:210
10566999642,40cyclictest787-21haveged22:45:030
10566999627,33cyclictest14905-21munin-run23:40:020
10566999537,44cyclictest24258-21wget22:10:120
10566999528,31cyclictest22649-21/usr/sbin/munin00:11:220
10566999444,33cyclictest3650irq/20-4900000020:55:210
10566999426,30cyclictest13027-21apt-get19:20:020
10566999422,20cyclictest26163-21chrt00:21:390
10566999358,26cyclictest31548-21df20:30:200
10566999354,30cyclictest22301-21mailstats22:00:470
10566999349,33cyclictest30597-21mailstats00:36:340
10566999344,38cyclictest301512chrt20:25:130
10566999328,46cyclictest438-21sshd20:35:330
10566999325,50cyclictest25159-21wget20:05:140
10566999254,30cyclictest18866-21aten_r7power_vo23:55:160
10566999250,32cyclictest1276-21runrttasks20:15:250
10566999158,21cyclictest31969-21grep22:40:010
10566999152,26cyclictest101ktimersoftd/023:54:240
10566999145,35cyclictest4548-21cut23:00:020
10566999142,16cyclictest10250irq/56-4a10000019:37:490
10566999117,37cyclictest1305-21snmpd00:29:320
10566999041,39cyclictest22630-21apt19:55:130
10566999023,34cyclictest14998-21diskstats19:25:250
10566999020,18cyclictest11879-21hostname21:20:140
10566998955,25cyclictest20386-21fw_packets19:45:260
10566998952,27cyclictest30228-21runrttasks22:30:550
10566998941,37cyclictest8851-21proc_pri23:15:490
10566998941,35cyclictest6871-21sshd23:08:410
10566998938,32cyclictest1408-21nginx22:47:460
10566998863,10cyclictest101ktimersoftd/021:03:460
10566998857,22cyclictest21282-21runrttasks21:57:170
10566998839,15cyclictest10250irq/56-4a10000000:03:590
10566998832,42cyclictest27206-21wget22:20:140
10566998815,38cyclictest2361-21df22:50:140
10566998744,33cyclictest19540-21chrt19:40:530
10566998723,47cyclictest1427-21/usr/sbin/munin20:40:140
10566998721,31cyclictest787-21haveged23:25:040
10566998719,48cyclictest15159-21aten_r7power_po23:40:400
10566998644,32cyclictest21442-21aten_r7power_en19:50:160
10566998644,32cyclictest1276-21runrttasks20:10:490
10566998629,39cyclictest4704-21grep23:00:130
10566998626,45cyclictest28446-21wget22:25:140
10566998624,23cyclictest29084-21seq20:20:220
10566998557,20cyclictest25327-21sendmail00:20:020
10566998551,22cyclictest801-21dbus-daemon21:50:000
10566998454,20cyclictest11676-21runrttasks19:14:150
10566998445,27cyclictest101ktimersoftd/021:53:560
10566998438,35cyclictest7851-21/usr/sbin/munin21:05:170
10566998436,39cyclictest7395-21runrttasks23:10:300
10566998435,38cyclictest11221-21memory23:25:330
10566998426,19cyclictest14485-21df_inode21:30:250
10566998426,19cyclictest1276-21runrttasks21:25:420
10566998424,22cyclictest16973-21chrt21:40:200
10566998317,31cyclictest10025-21/usr/sbin/munin21:15:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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