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2025-09-18 - 05:57
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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 Sep 17, 2025 14:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
248569917233,121cyclictest20604-21netstat11:05:370
24856991717,21cyclictest8083-21diskstats12:25:240
24253216818,49sleep024263-21users07:05:370
24856991677,138cyclictest1356-21snmpd12:30:280
248569916729,128cyclictest12429-21sshd10:35:430
24856991639,133cyclictest1801-21node09:25:530
248569916327,115cyclictest1356-21snmpd10:22:350
24856991619,113cyclictest13115-21fw_forwarded_lo08:30:290
24856991607,114cyclictest815-21rs:main0
248569916028,112cyclictest1424-21nginx09:20:530
24856991598,131cyclictest1356-21snmpd12:18:000
24856991588,108cyclictest9316-21df08:15:230
24856991586,133cyclictest800-21avahi-daemon11:40:430
248569915842,105cyclictest26395-21df_inode07:15:270
248569915825,115cyclictest800-21avahi-daemon11:20:020
24856991579,106cyclictest1801-21node09:05:100
248569915736,101cyclictest1424-21nginx10:50:290
24856991569,111cyclictest9731-21df10:25:170
24856991569,104cyclictest19438-21ntp_states11:00:420
24856991567,130cyclictest31247-21ps09:40:460
24856991567,127cyclictest27825-21wget11:35:150
24856991566,130cyclictest1356-21snmpd09:57:300
248569915613,124cyclictest800-21avahi-daemon12:10:230
24856991558,104cyclictest7805-21apt-get10:17:070
248569915528,106cyclictest792-21haveged10:55:160
24856991546,19cyclictest1356-21snmpd09:35:560
248569915435,106cyclictest3508-21seq10:00:200
24856991538,16cyclictest23615-21ntp_states09:10:390
248569915340,94cyclictest10150irq/55-4a10000007:11:520
248569915326,109cyclictest1356-21snmpd12:38:040
248569915315,116cyclictest1424-21nginx10:45:280
24856991529,108cyclictest1356-21snmpd09:47:270
24856991517,123cyclictest15530-21wget08:40:360
24856991508,16cyclictest24677-21diskstats09:15:240
24856991507,107cyclictest1356-21snmpd08:27:090
24856991506,14cyclictest13495-21diskstats10:40:230
24856991497,126cyclictest1364-21sshd08:10:260
24856991497,118cyclictest760-21systemd-journal09:00:420
24856991488,120cyclictest24440-21sshd11:20:420
24856991488,119cyclictest4580-21wget10:05:150
24856991487,125cyclictest2966-21wget12:05:180
24856991487,112cyclictest28907-21runrttasks07:25:220
248569914839,94cyclictest6030-21fw_packets10:10:270
24856991478,14cyclictest30469-21df_inode11:45:180
248569914740,95cyclictest27663-21df_inode07:20:240
248569914730,106cyclictest1424-21nginx08:55:060
248569914719,110cyclictest32767-21sshd07:40:360
248569914715,119cyclictest1801-21node07:45:280
24856991467,16cyclictest25526-21seq11:25:270
24856991466,15cyclictest10955-21mailstats08:20:490
24856991466,14cyclictest800-21avahi-daemon12:24:040
24856991466,120cyclictest31413-21fw_conntrack07:35:240
24856991457,19cyclictest1163-21ntp_states09:50:430
24856991457,16cyclictest26929-21ntp_states11:30:450
24856991457,118cyclictest28232-21/usr/sbin/munin09:30:230
24856991457,102cyclictest1336-21runrttasks12:04:090
24856991456,119cyclictest16633-21chmod08:45:090
24856991448,96cyclictest6494-21fw_conntrack08:05:270
24856991447,14cyclictest10973-21df10:30:180
248569914417,108cyclictest22646-21latency_hist11:15:040
248569914338,96cyclictest14495-21ntpq08:35:400
248569914314,109cyclictest30119-21sort07:30:190
248569914242,87cyclictest5383-21ntpq08:00:380
248569914230,102cyclictest867-21seq11:55:520
248569914224,106cyclictest802-21dbus-daemon08:00:010
248569914220,112cyclictest2918-21ntp_states07:50:420
248569914113,114cyclictest800-21avahi-daemon11:55:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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