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2026-08-13 - 18:19
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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 Aug 13, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
81342198182,11sleep10-21swapper/107:08:361
79962194176,13sleep00-21swapper/007:06:460
79322185169,12sleep30-21swapper/307:05:573
79042178160,13sleep20-21swapper/207:05:362
247802470,0sleep10-21swapper/110:40:531
159052470,0sleep00-21swapper/011:42:210
185432460,0sleep20-21swapper/211:44:032
290172450,0sleep10-21swapper/112:05:161
129962430,0sleep10-21swapper/107:15:151
163192410,0sleep30-21swapper/311:25:473
845499102,4cyclictest12897-21perl09:30:133
845499102,2cyclictest31222-21df_inode11:50:143
84419991,4cyclictest8768-21munin-run10:50:000
84549986,1cyclictest24650-21apt-get09:20:123
84549983,4cyclictest4252-21diskmemload09:25:123
84549983,2cyclictest10176-21sed07:10:193
84549982,4cyclictest8200-21smartctl11:05:183
84549982,4cyclictest4252-21diskmemload10:57:443
84549982,4cyclictest20684-21apt11:45:093
84549982,4cyclictest0-21swapper/311:17:053
84549982,3cyclictest4252-21diskmemload11:13:233
84549982,3cyclictest4252-21diskmemload10:22:583
84549982,2cyclictest4252-21diskmemload09:47:563
84549982,2cyclictest25764-21ntpq10:25:183
84549982,2cyclictest1536-21seq09:04:473
84549982,1cyclictest2007-21apt-get09:05:113
84419981,3cyclictest307-21munin-run11:35:000
2968280,0sleep30-21swapper/310:46:203
84549975,1cyclictest6790-21apt-get08:10:113
84549974,3cyclictest21885-21apt-get10:40:123
84549974,2cyclictest5122-21ssh12:10:123
84549974,2cyclictest4252-21diskmemload12:28:123
84549974,2cyclictest31777-21apt-get07:55:103
84549974,2cyclictest307-21munin-run11:35:003
84549974,2cyclictest21828-21sh12:35:123
84549974,2cyclictest10735-21ntp_states08:15:173
84549973,3cyclictest17425-21df_inode08:30:133
84549972,4cyclictest15699-21ntp_states08:25:173
84549972,3cyclictest9842-21rm10:50:133
84549972,3cyclictest4252-21diskmemload09:41:273
84549972,3cyclictest24547-21grep07:40:133
84549972,3cyclictest18541-21ntp_states10:05:183
84549972,3cyclictest14604-21rm10:35:433
84549972,3cyclictest14089-21rm12:30:213
84549972,3cyclictest12332-21ssh09:13:583
84549972,2cyclictest4252-21diskmemload12:06:303
84549972,2cyclictest4252-21diskmemload10:15:173
84549972,2cyclictest13222-21awk07:15:173
84549972,1cyclictest28896-21sh09:55:013
84549971,4cyclictest12152-21ntp_states11:40:183
84549971,2cyclictest4252-21diskmemload11:36:183
84549971,2cyclictest14342-21rm09:15:013
84549971,1cyclictest22555-21perl08:40:133
84539971,5cyclictest0-21swapper/208:00:122
84419971,3cyclictest21648-21munin-run07:35:000
84549965,1cyclictest24330-21apt-get08:45:093
84549964,2cyclictest26837-21apt-get07:45:113
84549964,2cyclictest21621-21munin-run08:40:003
84549964,2cyclictest14198-21dump-pmu-power08:25:003
84549963,3cyclictest8764-21perl11:55:143
84549963,2cyclictest4316-21apt-get08:05:093
84549963,2cyclictest29265-21apt08:55:103
84549963,2cyclictest28522-21latency_hist11:00:003
84549963,2cyclictest24779-21ssh12:20:113
84549963,2cyclictest19930-21df_inode07:30:143
84549963,2cyclictest1846-21apt-get08:00:123
84549963,2cyclictest15679-21perl12:15:153
84549963,2cyclictest14989-21df07:20:133
84549962,3cyclictest4252-21diskmemload10:10:153
84549962,3cyclictest4252-21diskmemload10:10:153
84549961,3cyclictest29393-21ssh09:55:033
84549961,2cyclictest23793-21sendmail_mailst09:35:193
84549961,2cyclictest22390-21df07:35:123
84549961,2cyclictest11051-21munin-node12:00:113
84549961,1cyclictest4252-21diskmemload11:22:373
84549961,1cyclictest2434-21df10:30:143
84549960,3cyclictest0-21swapper/310:00:123
84539960,5cyclictest0-21swapper/208:55:102
84419960,3cyclictest6565-21munin-run08:10:000
84549953,2cyclictest26798-21apt-get08:50:093
84549953,1cyclictest16936-21apt-get07:25:113
84549952,2cyclictest29368-21/usr/sbin/munin07:50:123
84539955,0cyclictest0-21swapper/210:42:422
84539955,0cyclictest0-21swapper/209:15:162
84539951,3cyclictest0-21swapper/210:55:122
84539950,5cyclictest20467-21apt-get11:45:012
84539950,5cyclictest0-21swapper/212:16:512
84539950,5cyclictest0-21swapper/211:15:142
84539950,5cyclictest0-21swapper/210:32:402
84539950,5cyclictest0-21swapper/209:31:512
84539950,5cyclictest0-21swapper/208:10:122
84539950,4cyclictest11692-21apt-get10:35:022
84499951,2cyclictest0-21swapper/111:15:111
84499951,2cyclictest0-21swapper/110:15:121
84499950,5cyclictest0-21swapper/111:32:451
84499950,5cyclictest0-21swapper/110:49:231
84499950,5cyclictest0-21swapper/110:13:271
84499950,5cyclictest0-21swapper/110:13:271
84419954,1cyclictest0-21swapper/007:17:460
84419951,3cyclictest802-21snmpd09:05:110
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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