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2026-06-18 - 08:33
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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 Thu Jun 18, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
99762200184,11sleep10-21swapper/119:09:521
98002189171,13sleep00-21swapper/019:07:330
77682185168,12sleep30-21swapper/319:05:083
99472170153,12sleep20-21swapper/219:09:292
116302450,0sleep10-21swapper/121:28:191
20552440,0sleep10-21swapper/100:34:431
275202400,0sleep00-21swapper/021:51:310
301032340,1sleep21019299cyclictest22:09:102
41832130,0sleep10-21swapper/122:11:541
1017999120,7cyclictest12264-21ntp_states20:15:160
1017999102,4cyclictest12514-21idleruntime-cro19:15:000
1017999100,9cyclictest28151-21munin-run19:45:000
1017999100,8cyclictest5567-21diskmemload23:23:130
1017999100,8cyclictest5567-21diskmemload23:23:130
1017999100,7cyclictest10795-21rm22:30:460
1017999100,6cyclictest6650-21df_inode21:10:130
1017999100,6cyclictest54452sleep020:00:220
1017999100,6cyclictest23904-21df20:40:140
1017999100,6cyclictest18948-21df_inode20:30:100
1017999100,6cyclictest14028-21perl21:45:130
1017999100,6cyclictest11864-21users22:15:190
1017999100,5cyclictest3334-21rm00:19:180
101799990,8cyclictest5216-21apt-get00:20:110
101799990,8cyclictest28427-21apt-get22:40:130
101799990,8cyclictest18222-21apt-get22:35:120
101799990,7cyclictest32603-21rm21:38:390
101799990,6cyclictest28695-21users21:20:190
101799990,6cyclictest26382-21diskstats20:45:120
101799990,6cyclictest26089-21rm23:26:100
101799990,6cyclictest24246-21hddtemp_smartct19:35:140
101799990,6cyclictest18998-21df_inode19:25:130
101799990,6cyclictest14008-21df20:20:130
101799990,5cyclictest27439-21ssh22:55:140
101799990,5cyclictest23632-21ssh23:40:360
101799990,5cyclictest18042-21taskset20:28:140
101799990,5cyclictest0-21swapper/023:15:550
101799990,0cyclictest9101-21ssh22:14:550
101799982,5cyclictest30268-21head00:00:140
101799981,3cyclictest0-21swapper/023:06:290
101799980,7cyclictest884-21apt-get19:55:120
101799980,7cyclictest853-21ssh23:45:190
101799980,7cyclictest3857-21diskstats21:05:140
101799980,7cyclictest30252-21apt-get22:25:100
101799980,7cyclictest2046-21fschecks_time21:55:130
101799980,7cyclictest18539-21apt-get23:55:010
101799980,7cyclictest16009-21apt-get19:20:130
101799980,7cyclictest14259-21grep19:15:130
101799980,7cyclictest11645-21sh23:50:430
101799980,7cyclictest11492-21apt-get22:00:110
101799980,6cyclictest17816-21ssh21:30:490
101799980,5cyclictest8019-21taskset20:06:430
101799980,5cyclictest8019-21taskset20:06:430
101799980,5cyclictest6302-21ssh21:41:060
101799980,5cyclictest32116-21ntp_states19:50:180
101799980,5cyclictest31734-21taskset00:32:590
101799980,5cyclictest30323-21taskset19:46:290
101799980,5cyclictest30238-21taskset20:51:000
101799980,5cyclictest2890-21ssh23:30:280
101799980,5cyclictest27364-21rm22:23:330
101799980,5cyclictest23165-21chrt19:35:000
101799980,5cyclictest18305-21sh00:25:550
101799980,5cyclictest13013-21ssh23:35:260
101799980,5cyclictest10028-21ssh00:05:510
101799980,4cyclictest0-21swapper/000:39:420
101799980,0cyclictest21745-21apt-get22:05:120
101799980,0cyclictest0-21swapper/023:10:400
101799980,0cyclictest0-21swapper/023:03:130
101799980,0cyclictest0-21swapper/022:50:110
101799980,0cyclictest0-21swapper/021:25:010
32032270,1sleep21019299cyclictest21:54:182
101929970,6cyclictest0-21swapper/222:20:122
101799970,7cyclictest26111-21sendmail21:20:010
101799970,7cyclictest23136-21turbostat.cron20:39:590
101799970,6cyclictest30795-21apt-get20:55:100
101799970,6cyclictest18628-21ntp_states00:10:170
101799970,6cyclictest1371-21df21:00:110
101799970,5cyclictest12895-21ssh22:48:110
101799970,0cyclictest0-21swapper/020:10:100
101979955,0cyclictest19070-21kworker/3:122:49:423
101979955,0cyclictest19070-21kworker/3:100:08:033
101979950,5cyclictest0-21swapper/322:38:223
101979950,5cyclictest0-21swapper/321:43:223
101929954,1cyclictest0-21swapper/223:12:442
101929953,2cyclictest5170-21kworker/2:120:41:122
101929950,5cyclictest0-21swapper/222:35:112
101929950,4cyclictest0-21swapper/220:30:092
101879952,2cyclictest0-21swapper/100:25:101
101879951,2cyclictest0-21swapper/122:45:101
101879951,2cyclictest0-21swapper/121:20:101
101879951,2cyclictest0-21swapper/120:55:111
101879950,5cyclictest0-21swapper/123:46:441
101879950,5cyclictest0-21swapper/123:20:591
101879950,5cyclictest0-21swapper/123:20:591
101879950,5cyclictest0-21swapper/122:36:441
6721240,0sleep20-21swapper/222:13:292
3326240,1sleep10-21swapper/122:59:441
101979944,0cyclictest19070-21kworker/3:100:30:263
101979944,0cyclictest12730-21kworker/3:020:35:203
101979943,1cyclictest26824-21grep21:35:193
101979943,1cyclictest15865-21df_inode00:25:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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