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2025-11-10 - 10:45
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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 Mon Nov 10, 2025 01:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23941212350,10sleep023940-21/usr/sbin/munin19:05:280
247959917431,32cyclictest10250irq/56-4a10000000:34:270
247959916733,31cyclictest10250irq/56-4a10000023:48:500
247959916348,13cyclictest10150irq/55-4a10000020:20:330
247959916139,29cyclictest3650irq/20-4900000022:47:130
247959916127,38cyclictest10250irq/56-4a10000021:42:160
24795991588,16cyclictest3579-21apt-get19:57:090
24795991587,16cyclictest15961-21apt-get20:42:130
247959915753,19cyclictest13814-21/usr/sbin/munin22:35:300
247959915450,16cyclictest26320-21seq19:15:200
247959915448,15cyclictest10027-21seq22:20:250
247959915436,32cyclictest101ktimersoftd/000:20:100
24795991527,15cyclictest7618-21apt-get00:22:140
247959915252,16cyclictest25416-21mailstats19:10:490
247959915251,17cyclictest3906-21latency_hist00:05:030
247959915245,13cyclictest10150irq/55-4a10000020:26:320
247959915153,15cyclictest30056-21cat23:40:030
247959915146,17cyclictest32655-21if_eth019:40:310
247959915050,15cyclictest355-21grep21:45:160
247959915046,18cyclictest4350-21latency_hist22:00:060
247959914960,11cyclictest101ktimersoftd/020:36:040
247959914943,19cyclictest5172-21latency_hist00:10:030
247959914856,11cyclictest101ktimersoftd/023:25:460
247959914744,19cyclictest5177-21runrttasks22:01:030
247959914526,36cyclictest1801-21node20:32:010
247959914452,12cyclictest101ktimersoftd/021:20:310
247959914360,10cyclictest101ktimersoftd/021:15:270
10228211416,85sleep010252-21latency_hist20:20:020
2107621056,86sleep0760-21systemd-journal23:03:260
2059121035,87sleep020597-21ntp_states20:55:420
769721016,84sleep0802-21dbus-daemon20:10:010
11646210113,77sleep011647-21users22:25:520
2479599977,23cyclictest10505-21munin-plugin-st00:30:010
219352970,7sleep021937-21grep23:05:490
23802955,79sleep02372-21ntp_states21:51:180
180692955,77sleep018103-21proc_pri22:50:470
24795999434,46cyclictest10250irq/56-4a10000022:18:400
225892945,78sleep022600-21latency_hist21:05:010
229372900,7sleep022935-21fw_conntrack21:05:270
303902885,73sleep030393-21df_inode21:35:200
24795998849,24cyclictest101ktimersoftd/000:00:030
24795998743,30cyclictest10250irq/56-4a10000023:53:510
24795998737,15cyclictest10250irq/56-4a10000019:38:180
24795998635,16cyclictest10250irq/56-4a10000022:32:240
24795998539,31cyclictest101ktimersoftd/022:05:270
24795998452,14cyclictest10150irq/55-4a10000022:40:400
24795998422,15cyclictest6359-21latency_hist00:15:050
24795998135,14cyclictest10250irq/56-4a10000019:46:510
278512805,63sleep027852-21diskstats23:30:270
24795998050,14cyclictest10150irq/55-4a10000019:50:300
24795998050,12cyclictest0-21swapper/022:56:320
24795998032,37cyclictest0-21swapper/019:28:340
24795998021,18cyclictest7521-21/usr/sbin/munin22:10:280
24795998015,31cyclictest792-21haveged21:30:030
24795997951,17cyclictest8942-21cron20:15:000
24795997950,13cyclictest10150irq/55-4a10000023:15:230
24795997949,14cyclictest10150irq/55-4a10000019:30:240
24795997938,27cyclictest3650irq/20-4900000020:50:380
24795997936,29cyclictest28440-21seq19:24:240
183762794,7sleep00-21swapper/020:46:090
24795997848,13cyclictest10150irq/55-4a10000023:25:020
24795997847,14cyclictest10150irq/55-4a10000023:10:290
24795997830,33cyclictest1336-21runrttasks00:35:180
24795997757,12cyclictest101ktimersoftd/021:15:010
24795997728,24cyclictest0-21swapper/023:40:130
24795997646,14cyclictest10150irq/55-4a10000021:33:290
24795997547,12cyclictest10150irq/55-4a10000020:03:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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