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2026-04-24 - 18:23
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 highest latencies:
System rack7slot8.osadl.org (updated Fri Apr 24, 2026 02:44:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21571222436,53sleep00-21swapper/019:09:100
217359917637,31cyclictest10250irq/56-4a10000021:25:180
217359916647,27cyclictest3650irq/20-4900000023:18:170
217359911594,11cyclictest0-21swapper/019:10:030
896421096,87sleep09002-21mailstats20:25:460
21926210916,82sleep020714-21apt-get21:11:390
1979621085,89sleep019797-21/usr/sbin/munin21:05:220
8884210712,84sleep08893-21vmstat22:25:550
989721064,89sleep09893-21ntp_states22:30:400
776221066,86sleep07800-21mailstats20:20:470
2684821055,87sleep026885-21aten_r7power_po19:30:150
2978721049,82sleep029789-21memory21:40:330
2709321045,86sleep027153-21cat21:30:160
217359910476,18cyclictest7177-21dmidecode00:27:180
79321035,84sleep0838-21aten_r7power_vo21:55:140
28457210312,12sleep028458-21fw_forwarded_lo21:35:270
2456521016,11sleep024568-21fw_forwarded_lo19:20:260
1619721015,11sleep014962-21apt-get20:51:460
1178921014,11sleep011790-21sshd22:39:250
2286021005,84sleep022875-21/usr/sbin/munin21:15:420
258062987,77sleep025808-21fw_forwarded_lo19:25:270
122052985,82sleep012002-21/usr/sbin/munin22:40:220
21735999732,20cyclictest12082-21apt-get20:42:110
13402966,78sleep01347-21memory19:56:020
21735999438,40cyclictest0-21swapper/020:03:280
51882915,73sleep05190-21fw_conntrack00:20:310
275962917,73sleep027351-21/usr/sbin/munin23:40:350
21735999044,30cyclictest3650irq/20-4900000021:22:100
21735999028,46cyclictest1305-21snmpd22:03:260
90952895,12sleep00-21swapper/000:35:160
35862895,11sleep03589-21memory22:05:330
21735998946,28cyclictest101ktimersoftd/023:00:410
21735998826,31cyclictest23834-21df_inode23:25:360
21735998735,36cyclictest97142chrt20:30:100
21735998634,33cyclictest32471-21wget00:00:230
21735998634,16cyclictest312152chrt19:46:160
21735998621,48cyclictest1276-21runrttasks19:40:110
2173599858,58cyclictest2010-21node22:49:170
21735998538,15cyclictest10250irq/56-4a10000022:52:040
21735998454,13cyclictest10150irq/55-4a10000000:30:300
21735998442,30cyclictest3650irq/20-4900000023:05:240
21735998433,41cyclictest10250irq/56-4a10000023:24:120
21735998358,11cyclictest101ktimersoftd/023:11:120
21735998341,28cyclictest10250irq/56-4a10000019:50:140
21735998247,25cyclictest0-21swapper/022:10:110
21735998220,29cyclictest787-21haveged00:17:120
2173599817,21cyclictest16586-21apt-get20:57:110
21735998120,15cyclictest32184-21latency_hist00:00:080
21735998053,13cyclictest10150irq/55-4a10000020:10:470
21735998049,13cyclictest10150irq/55-4a10000020:15:250
21735998048,14cyclictest10150irq/55-4a10000023:30:240
21735997947,15cyclictest10150irq/55-4a10000022:17:060
21735997928,16cyclictest29950-21aten_r7power_vo23:50:310
21735997852,12cyclictest28677-21cut23:45:150
21735997831,15cyclictest10250irq/56-4a10000021:48:120
21735997829,33cyclictest18581-21fw_forwarded_lo21:00:260
21735997826,19cyclictest1276-21runrttasks23:38:400
21735997815,27cyclictest14718-21sshd20:48:010
2173599777,41cyclictest15987-21fw_conntrack22:55:370
21735997749,17cyclictest29090-21sshd19:39:250
21735997748,14cyclictest10150irq/55-4a10000000:05:340
21735997659,10cyclictest101ktimersoftd/019:15:150
21735997648,13cyclictest10150irq/55-4a10000022:20:320
21735997641,26cyclictest0-21swapper/000:10:550
21735997624,34cyclictest12203-21latency_hist20:40:080
21735997549,17cyclictest32189-21sshd21:50:260
21735997244,13cyclictest10150irq/55-4a10000020:05:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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