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2025-12-08 - 19:03
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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 Mon Dec 08, 2025 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
313512238223,10sleep10-21swapper/107:05:381
314572186169,12sleep30-21swapper/307:07:013
314512184165,14sleep20-21swapper/207:06:562
314792182167,11sleep00-21swapper/007:07:180
66502470,0sleep00-21swapper/010:52:050
245622460,0sleep30-21swapper/312:05:263
86372450,0sleep00-21swapper/011:09:500
255572410,0sleep00-21swapper/011:34:280
318132390,0sleep30-21swapper/309:44:143
22922370,0sleep30-21swapper/310:34:063
111982100,0sleep10-21swapper/110:05:261
318639960,3cyclictest9953-21munin-run08:35:010
12954260,0sleep00-21swapper/011:27:480
318769951,3cyclictest0-21swapper/308:45:133
318769951,2cyclictest0-21swapper/310:15:153
318769951,2cyclictest0-21swapper/309:35:133
318769950,5cyclictest0-21swapper/311:38:243
318769950,5cyclictest0-21swapper/311:10:193
318769950,4cyclictest0-21swapper/312:25:113
318769950,4cyclictest0-21swapper/309:45:133
318729955,0cyclictest0-21swapper/210:44:072
318729950,5cyclictest0-21swapper/212:34:162
318729950,5cyclictest0-21swapper/212:05:102
318729950,5cyclictest0-21swapper/211:21:052
318729950,5cyclictest0-21swapper/210:55:122
318729950,4cyclictest15661-21ssh09:20:132
318729950,0cyclictest0-21swapper/210:15:542
318679951,2cyclictest0-21swapper/110:10:131
318679951,2cyclictest0-21swapper/110:00:131
318679951,2cyclictest0-21swapper/107:30:121
318679950,5cyclictest0-21swapper/108:32:331
318639955,0cyclictest15304-21kworker/0:111:36:340
318639955,0cyclictest15304-21kworker/0:108:59:480
318639955,0cyclictest15304-21kworker/0:108:37:260
318639955,0cyclictest15304-21kworker/0:107:52:380
318639953,1cyclictest29189-21ntp_states09:10:180
318639951,2cyclictest0-21swapper/008:50:140
318639950,5cyclictest0-21swapper/011:43:230
318639950,5cyclictest0-21swapper/009:41:440
318639950,3cyclictest3728-21latency_hist10:35:010
318639950,1cyclictest6184-21munin-run10:20:010
318639950,0cyclictest17865-21ssh12:19:100
15960250,0sleep10-21swapper/112:34:421
318769944,0cyclictest0-21swapper/309:17:163
318769943,1cyclictest32667-21perl11:05:143
318769941,2cyclictest0-21swapper/312:30:123
318769941,2cyclictest0-21swapper/309:10:123
318769941,2cyclictest0-21swapper/308:10:093
318769941,2cyclictest0-21swapper/307:55:143
318769941,2cyclictest0-21swapper/307:30:123
318769941,1cyclictest0-21swapper/312:15:123
318769940,4cyclictest32648-21perl07:10:153
318769940,4cyclictest32287-21apt-get12:10:103
318769940,4cyclictest0-21swapper/312:35:123
318769940,4cyclictest0-21swapper/311:45:123
318769940,4cyclictest0-21swapper/311:00:433
318769940,4cyclictest0-21swapper/310:55:123
318769940,4cyclictest0-21swapper/310:50:543
318769940,4cyclictest0-21swapper/310:20:123
318769940,4cyclictest0-21swapper/310:14:513
318769940,4cyclictest0-21swapper/309:25:133
318769940,4cyclictest0-21swapper/308:35:113
318769940,4cyclictest0-21swapper/308:15:113
318769940,3cyclictest6227-21irqstats08:25:133
318769940,3cyclictest4410-21apt-config11:40:013
318769940,3cyclictest26074-21ntp_states11:50:183
318769940,3cyclictest24969-21sed09:05:003
318769940,3cyclictest24892-21df10:45:163
318769940,3cyclictest22504-21latency_hist09:00:003
318769940,3cyclictest19450-21sh12:20:023
318769940,3cyclictest18777-21ssh10:41:533
318769940,3cyclictest16552-21ssh10:25:063
318769940,3cyclictest16222-21df_inode09:20:143
318769940,3cyclictest13183-21fschecks_time12:00:153
318769940,3cyclictest12808-21ntp_states09:50:193
318769940,3cyclictest11354-21chrt10:38:313
318769940,3cyclictest0-21swapper/311:25:133
318769940,3cyclictest0-21swapper/308:30:163
318769940,2cyclictest0-21swapper/307:35:123
318769940,1cyclictest29411-21/usr/sbin/munin11:20:143
318769940,1cyclictest21377-21/usr/sbin/munin09:55:173
318769940,1cyclictest20325-21/usr/sbin/munin07:50:143
318769940,0cyclictest0-21swapper/311:58:123
318769940,0cyclictest0-21swapper/309:32:593
318729944,0cyclictest0-21swapper/211:01:092
318729944,0cyclictest0-21swapper/210:50:492
318729944,0cyclictest0-21swapper/209:30:302
318729944,0cyclictest0-21swapper/209:11:002
318729943,1cyclictest32619-21grep11:05:142
318729940,4cyclictest8108-21ssh11:41:102
318729940,4cyclictest0-21swapper/212:25:112
318729940,4cyclictest0-21swapper/212:18:592
318729940,4cyclictest0-21swapper/211:45:122
318729940,4cyclictest0-21swapper/211:15:112
318729940,4cyclictest0-21swapper/210:32:142
318729940,4cyclictest0-21swapper/210:00:132
318729940,4cyclictest0-21swapper/209:55:122
318729940,4cyclictest0-21swapper/209:50:122
318729940,4cyclictest0-21swapper/209:46:242
318729940,4cyclictest0-21swapper/209:40:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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