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2026-06-07 - 11:47
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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 376 highest latencies:
System rack5slot7.osadl.org (updated Sun Jun 07, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1640224122153,83sleep00-21swapper19:04:240
17659917342,112cyclictest28620-21cpu21:20:490
17659917025,26cyclictest15288-21df_inode23:51:090
17659916816,129cyclictest25605-21fw_conntrack00:21:170
17659916814,129cyclictest9812-21/usr/sbin/munin23:36:020
17659916813,128cyclictest2874-21ssh21:40:380
17659916734,15cyclictest22758-21ssh00:12:110
17659916731,117cyclictest32449-21ntp_offset21:31:390
17659916718,122cyclictest7986-21apt-get21:55:340
17659916618,24cyclictest32226-21df23:05:540
17659916618,123cyclictest26917-21apt-get00:25:330
17659916613,131cyclictest27644-21users21:17:040
17659916612,131cyclictest21582-21ssh22:35:130
17659916538,25cyclictest11871-21uname22:06:270
17659916519,26cyclictest6658-21df23:25:580
17659916436,108cyclictest31431-21sh21:28:510
17659916434,109cyclictest23283-21cron22:40:110
17659916431,113cyclictest0-21swapper22:55:010
17659916426,24cyclictest4835-21df_abs21:46:020
17659916417,23cyclictest12459-21users23:42:000
17659916414,29cyclictest10585-21cat22:02:010
17659916413,29cyclictest16581-21ssh22:20:320
17659916333,21cyclictest3882-21grep23:16:580
17659916321,25cyclictest17382-21ntp_states20:31:130
17659916319,37cyclictest13749-21ntp_states22:11:470
17659916315,23cyclictest28552-21apt-get22:55:350
17659916313,26cyclictest6211-21ssh23:24:580
17659916312,23cyclictest21413-21/usr/sbin/munin20:55:230
17659916312,126cyclictest24306-21ssh21:07:370
17659916222,30cyclictest29012-21fw_conntrack00:31:190
17659916217,25cyclictest9041-21users23:32:050
17659916215,20cyclictest18376-21apt-get00:00:390
17659916214,21cyclictest13226-21apt-get23:45:310
17659916211,29cyclictest31901-21latency_hist23:05:170
17659916211,26cyclictest1460-21/usr/sbin/munin23:10:510
17659916211,128cyclictest25072-21latency_hist22:45:180
17659916116,24cyclictest16661-21apt-get23:55:300
17659916115,35cyclictest20413-21df_inode00:06:050
17659916115,21cyclictest6268-21apt-get21:50:390
17659916113,26cyclictest23999-21kernelversion00:16:300
17659916032,26cyclictest15596-21ssh22:16:540
17659916016,38cyclictest25123-21apt-get22:45:330
17659916015,38cyclictest13638-21/usr/sbin/munin20:11:000
17659915919,25cyclictest26568-21munin-run21:15:140
17659915918,38cyclictest1652-21memory21:36:340
17659915918,115cyclictest5956-21users19:26:310
17659915916,36cyclictest18644-21fw_conntrack22:26:140
17659915915,30cyclictest13078-21sort20:06:180
17659915739,97cyclictest15803-21timerwakeupswit20:21:170
17659915730,21cyclictest4138-21head19:16:180
17659915718,25cyclictest19604-21apt-get20:45:280
17659915713,118cyclictest1864-21apt-get19:05:310
17659915620,26cyclictest2765-21munin-node19:10:220
17659915616,20cyclictest7220-21df19:35:420
17659915615,23cyclictest11713-21df20:00:410
17659915519,25cyclictest6098-21apt-get19:30:290
17659915519,23cyclictest4577-21df_inode19:20:460
17659915519,22cyclictest8797-21apt-get19:45:280
17659915517,21cyclictest23117-21munin-run21:05:130
17659915514,118cyclictest20503-21apt-get20:50:310
17659915513,40cyclictest10857-21/usr/sbin/munin19:55:450
17659915513,27cyclictest8689-21sshd19:43:590
17659915512,26cyclictest19490-21sshd20:41:460
17659915415,115cyclictest9696-21apt-get19:50:310
17659915318,21cyclictest16004-21apt-get20:25:280
17659915312,25cyclictest14897-21grep20:16:170
17659915116,22cyclictest17817-21apt-get20:35:270
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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