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2026-03-27 - 20:13
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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 Fri Mar 27, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
181482197182,10sleep10-21swapper/107:07:311
181172190174,11sleep00-21swapper/007:07:070
180802190174,11sleep30-21swapper/307:06:383
18341211093,12sleep20-21swapper/207:09:582
199222490,0sleep10-21swapper/112:06:211
194732460,0sleep30-21swapper/311:35:013
253832440,0sleep20-21swapper/211:53:372
12472420,0sleep20-21swapper/207:35:182
74132100,0sleep20-21swapper/210:56:372
1851499103,3cyclictest7987-21ssh10:10:000
1851499103,3cyclictest24319-21cron08:25:000
1851499102,4cyclictest21368-21cron09:45:000
1851499102,4cyclictest14442-21perf08:05:010
185149982,3cyclictest23815-21sh12:25:000
185299960,5cyclictest22368-21diskstats11:20:133
185259960,6cyclictest0-21swapper/211:30:112
185259960,5cyclictest0-21swapper/207:50:122
3934250,0sleep00-21swapper/011:26:460
26853250,0sleep10-21swapper/111:54:311
185299955,0cyclictest21076-21kworker/3:107:58:163
185299955,0cyclictest14092-21kworker/3:212:38:073
185299955,0cyclictest14092-21kworker/3:212:15:433
185299955,0cyclictest14092-21kworker/3:211:53:203
185299951,3cyclictest814-21snmpd11:00:013
185299950,5cyclictest0-21swapper/312:03:383
185299950,5cyclictest0-21swapper/310:50:123
185299950,5cyclictest0-21swapper/310:41:173
185299950,5cyclictest0-21swapper/309:45:513
185299950,5cyclictest0-21swapper/309:27:063
185299950,4cyclictest0-21swapper/308:55:123
185299950,4cyclictest0-21swapper/308:05:123
185259955,0cyclictest0-21swapper/211:12:152
185259951,0cyclictest57250irq/130-eth012:05:302
185259950,5cyclictest0-21swapper/211:27:592
185259950,5cyclictest0-21swapper/209:22:332
185259950,4cyclictest0-21swapper/207:40:122
185259950,0cyclictest0-21swapper/211:42:572
185199950,5cyclictest0-21swapper/110:01:151
185199950,5cyclictest0-21swapper/109:48:281
185149950,5cyclictest25379-21ssh11:21:160
185149950,5cyclictest0-21swapper/010:25:580
185149950,5cyclictest0-21swapper/009:57:180
185149950,5cyclictest0-21swapper/009:47:320
185149950,4cyclictest7181-21apt-get07:50:110
185149950,4cyclictest0-21swapper/009:05:120
185149950,0cyclictest0-21swapper/009:36:210
185299944,0cyclictest14092-21kworker/3:209:50:113
185299944,0cyclictest0-21swapper/310:21:573
185299943,1cyclictest1319-21sed07:35:213
185299943,0cyclictest218632sleep307:15:123
185299942,1cyclictest814-21snmpd12:25:093
185299941,3cyclictest814-21snmpd08:19:453
185299940,4cyclictest20513-21/usr/sbin/munin10:15:203
185299940,4cyclictest0-21swapper/311:40:113
185299940,4cyclictest0-21swapper/311:25:043
185299940,4cyclictest0-21swapper/311:10:443
185299940,4cyclictest0-21swapper/310:35:123
185299940,4cyclictest0-21swapper/310:33:313
185299940,4cyclictest0-21swapper/310:05:133
185299940,4cyclictest0-21swapper/310:04:063
185299940,4cyclictest0-21swapper/309:55:123
185299940,4cyclictest0-21swapper/309:40:123
185299940,4cyclictest0-21swapper/309:35:123
185299940,4cyclictest0-21swapper/309:15:113
185299940,4cyclictest0-21swapper/309:10:533
185299940,4cyclictest0-21swapper/309:05:213
185299940,4cyclictest0-21swapper/308:00:103
185299940,3cyclictest9465-21apt09:00:113
185299940,3cyclictest8400-21diskstats11:45:143
185299940,3cyclictest6882-21basename10:25:123
185299940,3cyclictest5340-21hddtemp_smartct08:50:133
185299940,3cyclictest5205-21perl07:45:133
185299940,3cyclictest4463-21sort08:50:003
185299940,3cyclictest3337-21cut12:30:173
185299940,3cyclictest32522-21diskstats08:40:133
185299940,3cyclictest31547-21munin-run07:35:003
185299940,3cyclictest2883-21/usr/sbin/munin09:20:093
185299940,3cyclictest25650-21memory08:25:143
185299940,3cyclictest23667-21/usr/sbin/munin11:05:143
185299940,3cyclictest19837-21ssh11:35:073
185299940,3cyclictest18256-21ssh12:05:213
185299940,3cyclictest16232-21users12:20:193
185299940,3cyclictest14180-21diskmemload10:45:013
185299940,3cyclictest13282-21ssh10:11:583
185299940,3cyclictest12826-21ssh11:15:163
185299940,3cyclictest0-21swapper/312:10:113
185299940,3cyclictest0-21swapper/312:10:113
185299940,3cyclictest0-21swapper/309:30:423
185299940,3cyclictest0-21swapper/308:30:123
185299940,3cyclictest0-21swapper/307:25:113
185299940,1cyclictest29255-21irqstats11:55:163
185259944,0cyclictest0-21swapper/212:10:022
185259944,0cyclictest0-21swapper/212:10:012
185259944,0cyclictest0-21swapper/210:12:202
185259944,0cyclictest0-21swapper/209:40:012
185259942,2cyclictest25087-21perl12:25:142
185259941,3cyclictest57250irq/130-eth011:01:332
185259941,2cyclictest0-21swapper/212:00:122
185259941,2cyclictest0-21swapper/210:45:102
185259941,1cyclictest384-21sh09:18:502
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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