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2026-03-17 - 13:01
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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 Tue Mar 17, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
202492236221,10sleep10-21swapper/119:05:471
204292200183,12sleep30-21swapper/319:08:053
204362193174,13sleep00-21swapper/019:08:100
204282177160,12sleep20-21swapper/219:08:042
240162480,0sleep00-21swapper/023:02:100
310762450,0sleep10-21swapper/122:18:551
13292430,0sleep30-21swapper/322:04:523
304772420,0sleep10-21swapper/100:08:491
14392390,0sleep30-21swapper/323:38:523
31532290,0sleep10-21swapper/121:16:341
4139280,0sleep00-21swapper/022:20:580
23690270,1sleep32075999cyclictest23:49:573
207599960,5cyclictest23234-21df_inode00:05:113
207539961,4cyclictest0-21swapper/220:05:102
207509962,4cyclictest16852-21munin-run23:15:010
207509962,4cyclictest16852-21munin-run23:15:010
207509960,3cyclictest16369-21diskmemload23:35:010
207509960,0cyclictest0-21swapper/022:15:010
32353250,0sleep00-21swapper/022:04:010
32240250,0sleep10-21swapper/122:35:131
207599950,5cyclictest17486-21ssh00:34:243
207599950,5cyclictest0-21swapper/323:57:003
207599950,5cyclictest0-21swapper/322:50:313
207599950,5cyclictest0-21swapper/322:05:333
207539955,0cyclictest0-21swapper/222:33:512
207539952,3cyclictest9776-21tune2fs20:55:132
207539950,5cyclictest8248-21rm00:29:582
207539950,5cyclictest21892-21ssh21:27:372
207539950,5cyclictest0-21swapper/222:59:372
207539950,5cyclictest0-21swapper/222:54:542
207539950,5cyclictest0-21swapper/222:04:282
207539950,5cyclictest0-21swapper/221:44:412
207539950,0cyclictest0-21swapper/223:12:072
207539950,0cyclictest0-21swapper/223:12:072
207539950,0cyclictest0-21swapper/200:20:132
207519951,3cyclictest0-21swapper/121:20:121
207519951,3cyclictest0-21swapper/119:45:111
207519951,3cyclictest0-21swapper/100:10:111
207519951,2cyclictest0-21swapper/122:20:111
207519951,2cyclictest0-21swapper/121:30:101
207519951,2cyclictest0-21swapper/121:05:121
207519951,2cyclictest0-21swapper/100:35:111
207519950,5cyclictest0-21swapper/122:05:031
207519950,5cyclictest0-21swapper/100:31:171
207509950,5cyclictest16369-21diskmemload00:00:260
207509950,5cyclictest0-21swapper/023:53:390
207509950,5cyclictest0-21swapper/021:46:550
207509950,5cyclictest0-21swapper/000:37:100
207509950,4cyclictest31537-21apt-get19:30:120
207509950,4cyclictest31493-21apt-get20:35:120
207509950,4cyclictest0-21swapper/020:30:100
207509950,0cyclictest0-21swapper/022:17:460
19967250,0sleep20-21swapper/223:31:382
7604240,0sleep20-21swapper/223:25:222
207599944,0cyclictest2186-21kworker/3:120:48:463
207599944,0cyclictest0-21swapper/322:40:113
207599944,0cyclictest0-21swapper/322:18:043
207599942,2cyclictest15840-21basename23:30:123
207599942,1cyclictest17812-21ssh00:18:273
207599941,3cyclictest814-21snmpd19:26:303
207599940,4cyclictest0-21swapper/323:11:363
207599940,4cyclictest0-21swapper/323:11:363
207599940,4cyclictest0-21swapper/323:08:163
207599940,4cyclictest0-21swapper/322:30:123
207599940,4cyclictest0-21swapper/322:28:253
207599940,4cyclictest0-21swapper/321:55:013
207599940,4cyclictest0-21swapper/321:40:083
207599940,4cyclictest0-21swapper/321:20:123
207599940,4cyclictest0-21swapper/321:11:363
207599940,4cyclictest0-21swapper/300:26:113
207599940,4cyclictest0-21swapper/300:20:113
207599940,4cyclictest0-21swapper/300:10:113
207599940,3cyclictest5315-21sh22:21:423
207599940,3cyclictest5063-21irqstats19:40:163
207599940,3cyclictest3188-21ssh21:50:113
207599940,3cyclictest28859-21expr23:20:163
207599940,3cyclictest27282-21ssh21:15:093
207599940,3cyclictest26277-21sh21:45:163
207599940,3cyclictest22980-21ssh23:01:323
207599940,3cyclictest21587-21/usr/sbin/munin20:15:203
207599940,3cyclictest21354-21/usr/sbin/munin22:45:153
207599940,3cyclictest21352-21ssh21:27:183
207599940,3cyclictest20074-21irqstats00:35:153
207599940,3cyclictest1657-21cat20:40:003
207599940,3cyclictest15446-21sh22:58:143
207599940,3cyclictest13927-21ntp_states00:00:173
207599940,3cyclictest11453-21cut19:55:013
207599940,3cyclictest10155-21irqstats20:55:153
207599940,0cyclictest0-21swapper/323:40:433
207599940,0cyclictest0-21swapper/321:36:533
207539944,0cyclictest0-21swapper/222:46:222
207539943,1cyclictest29831-21gltestperf20:30:132
207539943,1cyclictest25319-21aten2_r5power_v21:45:132
207539940,4cyclictest32761-21ntpq20:35:172
207539940,4cyclictest27770-21ssh00:39:292
207539940,4cyclictest0-21swapper/223:55:112
207539940,4cyclictest0-21swapper/223:52:322
207539940,4cyclictest0-21swapper/223:47:012
207539940,4cyclictest0-21swapper/223:35:122
207539940,4cyclictest0-21swapper/223:22:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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