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2026-03-30 - 11:02
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 50 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 rack5slot7.osadl.org (updated Mon Mar 30, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8805224082159,196sleep00-21swapper19:05:450
91429917513,137cyclictest13007-21/usr/sbin/munin21:49:090
91429917019,124cyclictest13340-21apt-get19:28:400
91429916818,124cyclictest11170-21munin-run23:18:280
91429916816,127cyclictest14730-21/usr/sbin/munin23:30:210
91429916711,133cyclictest4968-21/usr/sbin/munin00:34:170
91429916711,131cyclictest17838-21/usr/sbin/munin19:54:370
91429916616,25cyclictest23764-21irqstats23:54:360
9142991659,129cyclictest31373-21apt-get21:08:480
91429916519,25cyclictest16066-21munin-run21:58:330
91429916519,124cyclictest9573-21df21:39:090
91429916519,122cyclictest18049-21munin-run23:38:290
91429916518,122cyclictest2412-21apt-get21:18:470
91429916517,123cyclictest30195-21apt-get00:13:490
91429916515,126cyclictest11035-21apt-get21:43:440
91429916512,130cyclictest16636-21ssh21:59:400
91429916436,108cyclictest1690-21snmpd22:16:200
91429916419,24cyclictest23096-21apt-get22:18:470
91429916419,120cyclictest18541-21ntp_states22:04:570
91429916418,23cyclictest2674-21apt-get22:53:440
91429916417,24cyclictest29977-21apt-get22:38:470
91429916416,123cyclictest16052-21apt-get19:43:450
91429916415,126cyclictest28243-21apt-get22:33:440
91429916413,28cyclictest586-21ssh22:47:220
91429916320,23cyclictest19629-21apt-get22:08:480
91429916316,125cyclictest7835-21apt-get23:08:430
91429916218,26cyclictest21872-21df23:49:120
91429916218,24cyclictest1291-21df_inode22:49:210
91429916218,20cyclictest28484-21apt-get00:08:540
91429916216,121cyclictest1234-21grep21:14:540
91429916215,105cyclictest4589-21irqstats21:24:390
91429916214,26cyclictest29418-21sshd20:57:040
91429916214,126cyclictest19903-21apt-get23:43:550
91429916214,124cyclictest19852-21latency_hist23:43:340
91429916213,127cyclictest2917-21apt-get00:28:540
91429916213,124cyclictest25081-21ssh23:58:470
91429916212,127cyclictest32050-21ssh00:19:000
91429916118,24cyclictest12742-21fw_conntrack19:24:090
91429916117,122cyclictest1566-21fw_conntrack00:24:250
91429916117,121cyclictest25078-21df22:24:080
91429916117,105cyclictest27463-21users22:30:150
91429916115,123cyclictest6083-21wc21:29:070
91429916015,23cyclictest10631-21apt-get19:14:050
91429916014,33cyclictest26731-21sshd20:40:050
91429916014,122cyclictest11997-21sshd23:20:040
91429916013,123cyclictest14519-21/usr/sbin/munin19:34:040
91429916011,124cyclictest5036-21ntpq22:59:570
9142991599,123cyclictest15150-21/usr/sbin/munin19:39:220
91429915918,24cyclictest13550-21memory23:24:460
91429915916,121cyclictest6132-21apt-get23:03:480
91429915915,39cyclictest7567-21apt-get21:33:520
91429915833,15cyclictest0-21swapper00:05:510
91429915714,123cyclictest1690-21snmpd19:23:310
91429915632,25cyclictest28568-21cat20:53:300
91429915632,20cyclictest29611-21grep20:58:510
91429915616,24cyclictest18754-21apt-get19:58:440
91429915616,115cyclictest19653-21apt-get20:03:410
91429915512,26cyclictest23547-21fw_conntrack20:24:040
91429915418,24cyclictest25045-21apt-get20:33:430
91429915416,115cyclictest24416-21df_inode20:29:040
91429915414,17cyclictest9510-21df_inode19:09:060
91429915413,32cyclictest31255-21munin-run21:08:300
91429915312,39cyclictest21065-21wc20:09:280
91429915310,120cyclictest27729-21latency_hist20:48:310
91429915115,22cyclictest17227-21fw_conntrack19:49:050
91429915015,113cyclictest23161-21munin-run20:23:280
91429914912,26cyclictest21728-21fw_conntrack20:14:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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