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2026-08-21 - 14:34
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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 12:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15056224132176,185sleep00-21swapper06:56:360
164059916918,104cyclictest15817-21apt-get09:31:530
164059916917,128cyclictest28126-21apt-get11:41:570
164059916816,111cyclictest7471-21apt-get10:41:450
164059916718,107cyclictest14074-21apt-get09:26:500
164059916622,115cyclictest12354-21apt-get09:21:500
164059916619,122cyclictest10921-21apt-get10:51:470
164059916618,123cyclictest21240-21apt-get11:21:480
164059916618,103cyclictest9887-21irqstats12:22:410
164059916617,108cyclictest31318-21apt-get10:16:550
164059916537,110cyclictest28242-21fw_conntrack10:07:320
164059916517,125cyclictest5429-21apt-get09:01:470
164059916517,124cyclictest19031-21ssh11:14:390
164059916515,125cyclictest23299-21users07:37:380
164059916515,122cyclictest8920-21apt-get09:11:520
164059916513,128cyclictest19535-21apt-get11:16:580
164059916512,129cyclictest7165-21/usr/sbin/munin09:08:150
164059916420,104cyclictest11188-21memory09:17:520
164059916419,101cyclictest25225-21memory11:32:480
164059916414,125cyclictest30302-21irqstats11:47:440
164059916413,128cyclictest32321-21grep11:53:100
164059916412,129cyclictest8525-21sed12:18:090
164059916321,117cyclictest22957-21/usr/sbin/munin11:28:250
164059916318,121cyclictest29594-21apt-get10:11:500
164059916317,120cyclictest12993-21df_inode10:57:240
164059916316,106cyclictest19247-21apt-get09:41:490
164059916315,124cyclictest4206-21/usr/sbin/munin10:32:050
164059916314,123cyclictest14742-21fw_conntrack11:02:330
164059916217,122cyclictest9544-21/usr/sbin/munin10:47:230
164059916217,122cyclictest2309-21apt-get10:26:480
164059916215,123cyclictest3834-21ssh12:04:590
164059916214,124cyclictest6006-21/usr/sbin/munin12:12:020
164059916213,125cyclictest26138-21/usr/sbin/munin07:57:320
164059916213,106cyclictest20964-21/usr/sbin/munin09:47:530
164059916212,126cyclictest31994-21awk08:27:240
164059916118,118cyclictest1016-21irqstats10:22:420
164059916116,23cyclictest5762-21apt-get10:36:510
164059916113,122cyclictest24430-21apt-get09:56:590
164059916112,124cyclictest22874-21ssh09:52:060
164059916112,109cyclictest27230-21timerandwakeup11:38:120
164059916017,120cyclictest5396-21ssh12:09:080
164059916016,121cyclictest17784-21ssh09:37:100
164059916015,120cyclictest821-21apt11:56:410
164059915921,112cyclictest17442-21munin-node07:06:400
164059915918,119cyclictest26512-21fw_conntrack10:02:280
164059915912,127cyclictest16066-21apt-get11:06:400
164059915912,121cyclictest1406-21lldpd08:04:200
164059915910,123cyclictest28013-21cut08:06:530
164059915814,122cyclictest31044-21memory08:22:200
164059915813,23cyclictest11151-21apt-get12:26:490
164059915813,119cyclictest2745-21aten_r5power_en08:46:520
164059915713,119cyclictest20726-21/usr/sbin/munin07:27:130
164059915712,120cyclictest16575-21cut07:01:520
16405991569,124cyclictest23953-21ps07:42:280
164059915621,114cyclictest24991-21wc07:47:350
164059915616,120cyclictest20307-21ntp_states07:22:250
164059915610,122cyclictest19195-21grep07:17:010
16405991559,24cyclictest736-21sed08:32:350
164059915516,23cyclictest5317-21/usr/sbin/munin09:01:340
164059915513,118cyclictest25241-21apt07:51:400
164059915513,118cyclictest21643-21apt-get07:31:440
164059915413,22cyclictest2680-21cat08:46:340
164059915412,26cyclictest1372-21ntpq08:37:250
164059915411,118cyclictest28940-21aten_r5power_vo08:11:520
164059915312,25cyclictest18511-21ntp_offset07:12:240
164059915312,118cyclictest30478-21head08:17:350
164059915239,93cyclictest3956-21kernelversion08:52:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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