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2026-04-06 - 17:08
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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 Apr 06, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
196382197181,11sleep30-21swapper/307:06:293
196352194178,12sleep00-21swapper/007:06:260
197182190172,13sleep10-21swapper/107:07:311
196022174154,15sleep20-21swapper/207:05:592
53942800,0sleep015493-21diskmemload11:42:490
119622500,0sleep011964-21needreboot09:00:140
307622490,0sleep230761-21ssh10:20:122
199322430,0sleep20-21swapper/211:18:142
163532430,0sleep00-21swapper/011:32:090
196992200,0sleep319700-21sh10:15:013
200919982,3cyclictest22984-21munin-run08:20:020
200919980,4cyclictest7772-21munin-run10:25:010
201039971,5cyclictest0-21swapper/307:40:113
200919971,3cyclictest22889-21perf11:20:010
8307260,0sleep2301ktimersoftd/208:55:132
893250,1sleep3895-21cpuspeed08:40:123
29130250,0sleep00-21swapper/009:31:380
201039955,0cyclictest14606-21kworker/3:112:19:023
201039955,0cyclictest0-21swapper/312:10:183
200989951,2cyclictest0-21swapper/209:00:102
200989950,5cyclictest0-21swapper/210:10:082
200989950,4cyclictest0-21swapper/212:30:102
200989950,4cyclictest0-21swapper/211:20:112
200989950,4cyclictest0-21swapper/209:35:112
200969951,3cyclictest0-21swapper/111:35:101
200969951,2cyclictest0-21swapper/112:00:111
200969951,2cyclictest0-21swapper/111:55:131
200969951,2cyclictest0-21swapper/111:45:111
200969951,2cyclictest0-21swapper/108:35:111
200969950,5cyclictest0-21swapper/111:41:521
200969950,5cyclictest0-21swapper/110:32:291
200969950,5cyclictest0-21swapper/110:23:351
200919951,4cyclictest10543-21munin-run09:00:000
200919950,5cyclictest0-21swapper/010:54:340
200919950,5cyclictest0-21swapper/010:02:110
200919950,0cyclictest0-21swapper/011:39:230
200919950,0cyclictest0-21swapper/007:10:110
1364250,0sleep10-21swapper/111:25:121
201039944,0cyclictest14606-21kworker/3:112:30:153
201039944,0cyclictest0-21swapper/311:38:183
201039944,0cyclictest0-21swapper/310:52:453
201039944,0cyclictest0-21swapper/309:28:393
201039943,1cyclictest0-21swapper/311:14:173
201039942,2cyclictest28684-21ssh09:47:223
201039942,1cyclictest3162-21munin-run07:40:013
201039941,3cyclictest57150irq/125-eth011:20:013
201039941,2cyclictest31894-21sh11:55:223
201039940,4cyclictest32621-21cat11:40:133
201039940,4cyclictest26980-21tail12:25:153
201039940,4cyclictest26205-21df_inode08:25:133
201039940,4cyclictest0-21swapper/311:50:163
201039940,4cyclictest0-21swapper/310:40:133
201039940,4cyclictest0-21swapper/310:30:113
201039940,4cyclictest0-21swapper/309:37:393
201039940,4cyclictest0-21swapper/309:15:123
201039940,4cyclictest0-21swapper/309:10:293
201039940,4cyclictest0-21swapper/307:28:093
201039940,3cyclictest9229-21/usr/sbin/munin10:25:153
201039940,3cyclictest3895-21perl08:45:153
201039940,3cyclictest2494-21munin-run11:10:023
201039940,3cyclictest2494-21munin-run11:10:013
201039940,3cyclictest22801-21latency07:15:013
201039940,3cyclictest20240-21apt-get10:15:133
201039940,3cyclictest19329-21/usr/sbin/munin08:10:153
201039940,3cyclictest18165-21ntp_states10:45:203
201039940,3cyclictest16572-21sh09:41:133
201039940,3cyclictest15614-21df11:00:123
201039940,3cyclictest11341-21/usr/sbin/munin11:30:173
201039940,3cyclictest0-21swapper/312:35:123
201039940,2cyclictest29160-21ssh09:31:393
201039940,1cyclictest8497-21perl12:00:133
201039940,1cyclictest31009-21diskstats10:20:133
201039940,1cyclictest30618-21/usr/sbin/munin08:35:153
201039940,1cyclictest25051-21run-parts11:20:183
201039940,1cyclictest17877-21/usr/sbin/munin12:05:173
201039940,1cyclictest13362-21cut09:05:143
201039940,1cyclictest12911-21sed09:55:163
200989944,0cyclictest0-21swapper/212:16:262
200989944,0cyclictest0-21swapper/210:54:232
200989944,0cyclictest0-21swapper/210:35:102
200989942,1cyclictest24038-21ssh11:04:352
200989941,2cyclictest0-21swapper/209:05:132
200989941,2cyclictest0-21swapper/208:00:122
200989940,4cyclictest28404-21apt-get07:25:112
200989940,4cyclictest22548-21munin-node07:15:012
200989940,4cyclictest0-21swapper/212:25:122
200989940,4cyclictest0-21swapper/212:24:262
200989940,4cyclictest0-21swapper/211:55:132
200989940,4cyclictest0-21swapper/211:45:112
200989940,4cyclictest0-21swapper/211:35:102
200989940,4cyclictest0-21swapper/211:34:072
200989940,4cyclictest0-21swapper/211:13:452
200989940,4cyclictest0-21swapper/210:48:232
200989940,4cyclictest0-21swapper/210:42:432
200989940,4cyclictest0-21swapper/210:31:502
200989940,4cyclictest0-21swapper/209:45:122
200989940,4cyclictest0-21swapper/209:30:112
200989940,4cyclictest0-21swapper/209:10:102
200989940,4cyclictest0-21swapper/208:40:112
200989940,4cyclictest0-21swapper/208:05:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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