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2026-08-21 - 08:08
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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 Fri Aug 21, 2026 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7190242900,25sleep04146-1kworker/u3:019:00:000
73959917118,127cyclictest24926-21apt-get22:21:510
73959917117,128cyclictest9801-21apt-get23:11:490
73959916923,118cyclictest6144-21df21:27:150
73959916743,105cyclictest27557-21kernelversion00:02:450
73959916736,105cyclictest22842-21users23:48:240
73959916720,116cyclictest16287-21apt-get21:56:530
73959916616,125cyclictest28820-21apt-get00:06:520
73959916517,123cyclictest13260-21irqstats21:47:400
73959916515,125cyclictest14993-21apt-get23:26:520
73959916515,106cyclictest28382-21/usr/sbin/munin22:32:540
73959916419,120cyclictest18006-21apt-get22:01:530
73959916417,123cyclictest16723-21apt-get23:31:530
7395991633,134cyclictest31377-21/usr/sbin/munin21:07:040
73959916318,105cyclictest9818-21irqstats21:37:430
73959916316,103cyclictest30137-21apt-get22:36:520
73959916314,124cyclictest8058-21apt-get23:06:580
73959916313,126cyclictest21926-21irqstats22:12:400
73959916216,121cyclictest1558-21apt-get00:21:520
73959916215,121cyclictest1594-21irqstats22:47:470
73959916214,106cyclictest15191-21/usr/sbin/munin19:42:280
73959916119,102cyclictest18992-21memory23:37:530
73959916115,121cyclictest25764-21fw_conntrack23:57:360
73959916115,102cyclictest2427-21/usr/sbin/munin21:18:160
73959916113,108cyclictest14554-21/usr/sbin/munin21:53:100
73959916038,103cyclictest4768-21sh21:23:010
73959916018,119cyclictest3674-21fw_conntrack00:27:320
73959916018,116cyclictest7631-21apt-get21:31:500
73959916018,116cyclictest4600-21apt-get22:56:530
73959916018,115cyclictest1617-21users21:13:180
73959916017,105cyclictest23208-21apt-get22:16:480
73959916015,121cyclictest31904-21ssh00:15:160
73959916011,124cyclictest728-21grep00:18:190
73959915934,90cyclictest14025-21sh23:23:100
73959915918,102cyclictest3415-21memory22:52:550
73959915916,102cyclictest20664-21users22:08:180
73959915915,119cyclictest29638-21apt-get21:01:520
73959915915,102cyclictest11085-21apt-get21:41:530
73959915817,116cyclictest32194-21df_inode22:42:210
73959915815,119cyclictest26657-21apt-get22:26:470
73959915814,121cyclictest28292-21ntp_states20:52:260
73959915733,87cyclictest0-21swapper20:31:370
73959915720,113cyclictest23976-21df_inode23:52:230
73959915715,117cyclictest20528-21df_inode23:42:260
73959915518,98cyclictest29520-21munin-run21:01:340
73959915518,112cyclictest14305-21apt-get19:36:460
73959915517,115cyclictest7292-21ssh23:03:260
73959915517,115cyclictest11527-21apt-get23:16:580
73959915516,113cyclictest17906-21apt-get19:56:480
73959915511,121cyclictest22401-21/usr/sbin/munin20:21:560
73959915511,120cyclictest27550-21timerandwakeup20:47:330
73959915510,119cyclictest12456-21wc19:26:360
73959915418,112cyclictest19693-21apt-get20:06:450
73959915416,114cyclictest21989-21ntp_states20:17:260
73959915414,120cyclictest9704-21sendmail-msp19:11:320
73959915410,121cyclictest26781-21sshd20:44:260
73959915314,102cyclictest24749-21wc20:32:310
73959915311,23cyclictest16175-21wget19:46:550
7395991529,24cyclictest10126-21if_eth019:12:120
73959915214,115cyclictest17480-21ntp_states19:52:260
73959915212,115cyclictest8431-21latency_hist19:06:370
73959915118,107cyclictest20616-21apt-get20:11:460
73959915112,115cyclictest25573-21/usr/sbin/munin20:37:250
73959915016,111cyclictest13291-21munin-run19:31:320
7395991499,117cyclictest11232-21grep19:17:310
73959914819,105cyclictest13405-21apt-get19:31:460
73959914613,108cyclictest18794-21apt-get20:01:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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