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2025-10-22 - 19:22
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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 Wed Oct 22, 2025 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2663220027,51sleep00-21swapper/019:05:580
32159913948,34cyclictest19190-21df00:20:190
32159912656,30cyclictest1424-21nginx23:03:140
32159912144,21cyclictest5575-21apt-get23:32:100
32159912060,45cyclictest10250irq/56-4a10000022:15:250
32159911945,34cyclictest21383-21grep00:30:020
32159911855,42cyclictest1424-21nginx19:28:020
32159911837,21cyclictest31356-21apt-get23:07:080
32159911641,37cyclictest1356-21snmpd22:44:320
32159911632,23cyclictest23529-21apt-get20:32:120
32159911566,39cyclictest9417-21apt-get19:36:230
32159911543,52cyclictest28792-21chrt20:49:070
32159911468,34cyclictest23078-21apt-get22:36:240
32159911443,51cyclictest16340-21seq00:09:480
32159911355,44cyclictest1356-21snmpd19:43:520
32159911346,50cyclictest9558-21runrttasks21:40:160
32159911346,49cyclictest4719-21df21:20:250
32159911251,44cyclictest23546-21wc20:30:030
32159911250,42cyclictest1424-21nginx21:37:580
32159911235,60cyclictest240832sleep000:38:280
32159911175,26cyclictest11662-21runrttasks23:50:250
32159911170,31cyclictest15899-21runrttasks19:58:570
32159911071,28cyclictest13873-21df_inode19:50:260
32159911056,34cyclictest1356-21snmpd20:51:550
32159911043,48cyclictest3269-21wget23:20:150
32159911041,32cyclictest1356-21snmpd21:49:200
32159910976,22cyclictest1-21systemd00:00:040
32159910963,35cyclictest23108-21gpgv22:35:040
32159910960,39cyclictest31462-21cat21:00:040
32159910943,33cyclictest1424-21nginx22:54:000
32159910940,35cyclictest19777-21munin-run20:15:020
32159910940,34cyclictest16783-21users20:00:530
32159910937,51cyclictest2797-21sed21:15:030
32159910936,35cyclictest1356-21snmpd00:14:500
32159910935,36cyclictest1356-21snmpd23:29:400
32159910876,23cyclictest498-21seq21:05:210
32159910840,36cyclictest6204-21ntp_states19:20:420
32159910837,34cyclictest4269-21chrt19:13:470
32159910837,20cyclictest15927-21diskstats22:05:250
32159910765,29cyclictest25628-21ntpq20:35:360
32159910750,38cyclictest8561-21/usr/sbin/munin19:30:300
32159910747,42cyclictest1424-21nginx20:40:540
32159910740,34cyclictest14345-21munin-run22:00:030
32159910737,51cyclictest14690-21diskstats22:00:250
32159910727,23cyclictest25967-21apt-get22:47:080
32159910671,23cyclictest6866-21cron21:30:010
32159910665,30cyclictest760-21systemd-journal21:30:040
32159910660,36cyclictest4049-21grep21:20:060
32159910659,36cyclictest17828-21seq00:15:140
32159910643,23cyclictest1356-21snmpd22:55:390
32159910639,27cyclictest1801-21node23:41:260
32159910540,32cyclictest8451-21munin-run23:40:030
32159910539,45cyclictest19563-21wget22:20:180
32159910533,36cyclictest1356-21snmpd21:04:110
32159910530,37cyclictest21702-21diskstats00:30:270
32159910470,25cyclictest12950-21systemctl19:45:470
32159910453,35cyclictest3650irq/20-4900000020:05:540
32159910372,22cyclictest10037-21/usr/sbin/munin23:45:410
32159910343,21cyclictest17359-21ntp_states22:10:430
32159910338,49cyclictest12625-21chrt21:51:050
32159910243,19cyclictest2698-21apt-get23:17:090
32159910238,33cyclictest1356-21snmpd22:29:280
32159910234,32cyclictest14952-21sshd00:03:490
32159910166,24cyclictest760-21systemd-journal20:23:050
32159910056,32cyclictest1336-21runrttasks23:10:140
32159910041,19cyclictest20202-21memory20:15:340
32159910035,33cyclictest5303-21apt-get19:17:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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