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2026-08-12 - 13:59
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
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 100 highest latencies:
System rack5slot2.osadl.org (updated Wed Aug 12, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
222322225209,10sleep10-21swapper/119:09:561
221642191176,10sleep00-21swapper/019:09:030
221462181163,13sleep30-21swapper/319:08:503
218942179161,13sleep20-21swapper/219:05:322
34832560,0sleep30-21swapper/300:35:053
53512460,1sleep04900-21/usr/sbin/munin23:30:130
31692110,0sleep00-21swapper/023:12:270
212952100,0sleep30-21swapper/322:49:123
30763290,0sleep00-21swapper/022:05:050
224459960,3cyclictest7687-21/usr/sbin/munin23:15:132
224499950,5cyclictest0-21swapper/323:44:423
224499950,5cyclictest0-21swapper/321:29:053
224499950,4cyclictest17818-21diskmemload21:58:323
224499950,4cyclictest0-21swapper/300:30:113
224499950,0cyclictest0-21swapper/322:53:553
224499950,0cyclictest0-21swapper/322:24:143
224499950,0cyclictest0-21swapper/321:37:153
224459951,2cyclictest0-21swapper/200:25:122
224459950,5cyclictest6038-21grep00:20:012
224459950,5cyclictest0-21swapper/221:30:242
224459950,5cyclictest0-21swapper/219:30:112
224459950,4cyclictest0-21swapper/219:55:132
224459950,0cyclictest0-21swapper/223:23:362
224409951,2cyclictest0-21swapper/100:25:111
224409951,2cyclictest0-21swapper/100:20:121
224409950,5cyclictest0-21swapper/123:08:531
224409950,5cyclictest0-21swapper/123:03:301
224409950,5cyclictest0-21swapper/121:54:591
224409950,5cyclictest0-21swapper/100:09:011
224399955,0cyclictest0-21swapper/022:31:110
224399951,2cyclictest0-21swapper/020:25:130
224399950,5cyclictest10128-21ssh00:38:110
224399950,5cyclictest0-21swapper/022:42:390
224399950,5cyclictest0-21swapper/021:25:060
224399950,2cyclictest15263-21apt-get21:25:000
224499944,0cyclictest0-21swapper/323:35:233
224499944,0cyclictest0-21swapper/323:07:183
224499944,0cyclictest0-21swapper/322:57:163
224499944,0cyclictest0-21swapper/322:05:553
224499943,1cyclictest522-21rs:main3
224499943,1cyclictest17433-21users21:05:243
224499941,3cyclictest22648-21sort23:55:163
224499941,3cyclictest17818-21diskmemload21:50:353
224499941,2cyclictest17818-21diskmemload00:20:013
224499940,4cyclictest22960-21ssh22:33:413
224499940,4cyclictest17818-21diskmemload23:00:103
224499940,4cyclictest17818-21diskmemload00:05:143
224499940,4cyclictest14978-21head19:55:213
224499940,4cyclictest0-21swapper/323:51:483
224499940,4cyclictest0-21swapper/323:51:473
224499940,4cyclictest0-21swapper/323:45:133
224499940,4cyclictest0-21swapper/323:30:113
224499940,4cyclictest0-21swapper/323:20:103
224499940,4cyclictest0-21swapper/323:15:123
224499940,4cyclictest0-21swapper/322:40:103
224499940,4cyclictest0-21swapper/322:35:063
224499940,4cyclictest0-21swapper/322:26:023
224499940,4cyclictest0-21swapper/321:23:173
224499940,4cyclictest0-21swapper/321:15:123
224499940,4cyclictest0-21swapper/300:25:113
224499940,3cyclictest8097-21sed19:45:003
224499940,3cyclictest4491-21ntp_states20:40:153
224499940,3cyclictest25743-21/usr/sbin/munin20:20:203
224499940,3cyclictest22051-21/usr/sbin/munin20:10:193
224499940,3cyclictest19930-21perl00:10:133
224499940,3cyclictest17942-21latency_hist22:15:013
224499940,3cyclictest13082-21sed19:55:003
224499940,3cyclictest0-21swapper/322:00:043
224499940,1cyclictest490-21memory00:00:173
224499940,1cyclictest24537-21irqstats21:45:153
224499940,0cyclictest32528-21ssh21:33:103
224459944,0cyclictest0-21swapper/223:49:392
224459944,0cyclictest0-21swapper/222:40:332
224459943,1cyclictest3241-21/usr/sbin/munin19:35:142
224459943,1cyclictest25743-21/usr/sbin/munin20:20:182
224459942,1cyclictest2374-21ssh21:18:112
224459942,1cyclictest23472-21ssh21:45:122
224459941,3cyclictest0-21swapper/200:10:012
224459940,4cyclictest15263-21apt-get21:25:032
224459940,4cyclictest0-21swapper/223:40:132
224459940,4cyclictest0-21swapper/223:32:562
224459940,4cyclictest0-21swapper/223:10:122
224459940,4cyclictest0-21swapper/223:05:132
224459940,4cyclictest0-21swapper/222:58:232
224459940,4cyclictest0-21swapper/222:45:112
224459940,4cyclictest0-21swapper/222:38:012
224459940,4cyclictest0-21swapper/222:32:392
224459940,4cyclictest0-21swapper/222:25:092
224459940,4cyclictest0-21swapper/222:24:582
224459940,4cyclictest0-21swapper/222:03:472
224459940,4cyclictest0-21swapper/221:38:022
224459940,4cyclictest0-21swapper/221:21:322
224459940,4cyclictest0-21swapper/221:05:142
224459940,4cyclictest0-21swapper/220:45:192
224459940,4cyclictest0-21swapper/220:12:142
224459940,4cyclictest0-21swapper/200:30:112
224459940,4cyclictest0-21swapper/200:09:552
224459940,4cyclictest0-21swapper/200:00:122
224459940,3cyclictest718-21/usr/sbin/munin20:35:182
224459940,3cyclictest718-21/usr/sbin/munin20:35:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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