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2026-07-28 - 13:01
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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 Tue Jul 28, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8849243090,25sleep04305-1kworker/u3:018:59:000
92919917418,113cyclictest20036-21apt-get23:38:000
92919917314,131cyclictest30122-21apt-get22:33:060
92919916919,102cyclictest7985-21apt-get23:03:050
92919916619,122cyclictest14874-21apt-get23:22:590
92919916614,126cyclictest11180-21/usr/sbin/munin21:39:230
92919916521,99cyclictest18321-21apt-get23:33:030
92919916520,120cyclictest11314-21munin-run23:12:470
92919916519,104cyclictest2831-21apt-get22:48:050
92919916518,122cyclictest795-21apt-get21:08:030
92919916319,103cyclictest28388-21/usr/sbin/munin22:29:370
92919916315,123cyclictest12896-21/usr/sbin/munin21:44:320
92919916315,123cyclictest1080-21/usr/sbin/munin22:44:090
92919916315,106cyclictest18461-21fw_conntrack21:58:440
92919916314,110cyclictest29238-21/usr/sbin/munin00:04:120
92919916219,118cyclictest6363-21munin-run00:32:430
92919916218,118cyclictest11444-21apt-get23:13:010
92919916215,120cyclictest8184-21ssh21:28:540
92919916214,124cyclictest21733-21/usr/sbin/munin23:44:130
92919916117,119cyclictest31527-21apt-get21:03:030
92919916115,105cyclictest32075-21apt-get00:13:110
92919916114,125cyclictest26979-21tr23:58:140
92919916113,125cyclictest13169-21apt-get23:18:090
92919916037,103cyclictest6276-21apt-get22:58:040
92919916016,119cyclictest1339-21apt-get00:18:020
92919916015,103cyclictest3051-21/usr/sbin/munin00:24:330
92919916013,106cyclictest15362-21ps21:49:210
92919915918,102cyclictest26937-21df22:23:260
92919915918,100cyclictest16941-21df_inode23:28:400
92919915916,99cyclictest6345-21df_inode21:23:350
92919915916,118cyclictest23460-21apt-get23:48:040
92919915915,120cyclictest31842-21apt-get22:38:110
92919915915,118cyclictest19234-21irqstats19:53:270
92919915915,100cyclictest5004-21irqstats22:53:540
92919915914,121cyclictest2570-21apt-get21:13:040
92919915820,112cyclictest25193-21apt-get23:53:030
92919915816,118cyclictest25228-21df22:18:260
92919915816,100cyclictest21508-21/usr/sbin/munin22:09:390
92919915813,120cyclictest10890-21wget19:08:300
9291991579,106cyclictest16901-21missed_timers21:54:060
92919915712,122cyclictest9456-21/usr/sbin/munin21:33:390
92919915712,107cyclictest18611-21cat19:48:470
92919915711,122cyclictest23511-21df22:13:260
92919915710,103cyclictest30342-21sh00:07:570
92919915515,118cyclictest29589-21munin-run20:52:440
92919915514,117cyclictest19784-21apt-get22:03:100
92919915513,122cyclictest16881-21sort19:38:470
92919915513,118cyclictest31048-21tr20:58:370
92919915511,122cyclictest14918-21ps19:28:460
92919915510,104cyclictest4647-21ssh21:18:360
92919915415,116cyclictest10190-21munin-run19:07:430
92919915410,120cyclictest25920-21grep20:28:490
92919915337,91cyclictest24744-21ntpq20:23:360
92919915318,112cyclictest14238-21sed19:23:490
92919915317,112cyclictest22505-21apt-get20:12:570
92919915316,114cyclictest28225-21irqstats20:43:260
92919915314,116cyclictest23662-21df_abs20:18:160
92919915312,119cyclictest17801-21head19:43:480
92919915312,116cyclictest12657-21grep19:18:040
92919915312,116cyclictest12497-21latency_hist19:17:420
92919915311,118cyclictest21006-21sshd20:03:260
92919915217,110cyclictest15301-21apt-get19:32:590
92919915216,111cyclictest29703-21apt-get20:52:590
92919915111,119cyclictest27447-21grep20:38:370
92919915011,114cyclictest26851-21head20:33:480
92919914815,110cyclictest21583-21apt-get20:07:590
92919914812,110cyclictest19797-21apt-get19:57:580
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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