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2026-04-08 - 21:48
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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 Apr 08, 2026 02:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
621523110,7sleep06217-21cmp19:05:070
7576991747,144cyclictest1408-21nginx19:15:480
75769916610,112cyclictest17129-21runrttasks21:55:140
75769916510,132cyclictest8380-21irqstats19:10:530
75769916337,84cyclictest22942-21sshd00:23:550
75769916146,106cyclictest13111-21runrttasks19:30:130
75769916030,110cyclictest1408-21nginx22:01:170
75769915926,112cyclictest1305-21snmpd23:59:420
75769915841,96cyclictest10150irq/55-4a10000022:17:080
75769915716,111cyclictest2643-21grep23:05:150
75769915715,20cyclictest16713-21wget00:00:160
7576991559,16cyclictest32692-21users20:45:480
7576991558,23cyclictest12521-21ntp_states21:35:440
7576991557,20cyclictest812-21avahi-daemon22:10:170
75769915429,105cyclictest23769-21aten_r7power_en22:20:120
75769915427,107cyclictest1151-21sendmail-msp23:00:020
75769915410,16cyclictest27856-21http20:30:030
7576991538,15cyclictest1305-21snmpd21:44:120
75769915310,17cyclictest6941-21fw_forwarded_lo23:20:450
75769915310,131cyclictest19628-21ntp_states19:55:400
7576991529,117cyclictest1305-21snmpd23:54:410
7576991528,16cyclictest20704-21diskstats20:00:220
7576991527,44cyclictest1305-21snmpd19:28:420
7576991527,123cyclictest1305-21snmpd21:29:090
75769915227,113cyclictest6139-21cron23:20:010
7576991519,16cyclictest15728-21diskstats19:40:220
7576991516,16cyclictest27844-21apt-get20:32:070
7576991515,125cyclictest23582-21/usr/sbin/munin20:10:490
75769915149,90cyclictest30849-21/usr/sbin/munin20:40:120
75769915134,106cyclictest14656-21ntp_states19:35:420
75769915132,107cyclictest4837-21df21:05:170
75769915125,107cyclictest16943-21sshd21:54:420
75769915121,110cyclictest25688-21latency_hist00:35:030
7576991508,18cyclictest18519-21systemctl19:50:430
7576991507,19cyclictest19339-21df00:10:160
75769915025,106cyclictest1408-21nginx22:52:040
75769915010,16cyclictest21159-21apt-get00:17:060
75769915010,120cyclictest1261-21/usr/sbin/munin23:00:430
7576991498,16cyclictest6130-21/usr/sbin/munin21:10:260
75769914941,98cyclictest9599-21latency_hist21:25:030
7576991488,20cyclictest1305-21snmpd22:49:270
7576991488,17cyclictest1276-21runrttasks20:05:400
75769914837,98cyclictest23586-21if_err_eth000:25:310
75769914810,126cyclictest8132-21fw_conntrack23:25:220
7576991479,127cyclictest9575-21/usr/sbin/munin23:30:440
7576991478,20cyclictest7903-21apt-get21:17:110
7576991478,19cyclictest10940-21ntp_states19:20:400
7576991477,20cyclictest16962-21diskstats19:45:210
7576991476,21cyclictest907-21wget20:50:110
7576991476,19cyclictest754-21systemd-journal00:05:440
75769914739,94cyclictest11875-21fw_forwarded_lo23:40:230
75769914718,89cyclictest802-21in:imuxsock20:20:010
7576991467,16cyclictest25404-21awk22:25:450
7576991466,14cyclictest26575-21seq20:24:470
75769914613,11cyclictest1408-21nginx20:36:320
7576991458,20cyclictest13205-21netstat23:45:380
75769914530,103cyclictest3845-21wget23:10:110
7576991448,16cyclictest3443-21cut21:00:130
75769914426,107cyclictest2456-21runrttasks20:55:310
75769914424,101cyclictest27455-21/usr/sbin/munin22:35:140
75769914419,108cyclictest10250irq/56-4a10000022:05:130
75769914414,116cyclictest11535-21sendmail-msp23:40:020
75769914412,17cyclictest1305-21snmpd22:30:440
7576991439,121cyclictest26956-21sendmail-msp00:40:020
75769914338,93cyclictest11247-21awk21:30:350
75769914228,103cyclictest28824-21wget22:40:150
75769914117,109cyclictest10250irq/56-4a10000021:45:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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