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2026-05-23 - 21:56
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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 Sat May 23, 2026 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136982226209,12sleep10-21swapper/107:05:061
158422193158,12sleep30-21swapper/307:09:013
156072188154,12sleep00-21swapper/007:05:570
156612176156,15sleep20-21swapper/207:06:402
283482460,0sleep00-21swapper/008:35:200
250542440,0sleep10-21swapper/110:50:251
307472400,0sleep10-21swapper/112:13:361
174302110,0sleep30-21swapper/312:39:173
1609599102,4cyclictest9293-21perf08:00:010
161059970,6cyclictest0-21swapper/310:25:123
8263250,0sleep20-21swapper/212:34:512
161059955,0cyclictest0-21swapper/309:43:363
161059955,0cyclictest0-21swapper/309:31:053
161059950,5cyclictest27239-21ssh11:40:113
161059950,5cyclictest27239-21ssh11:40:113
161059950,5cyclictest0-21swapper/312:25:593
161059950,5cyclictest0-21swapper/311:55:253
161059950,5cyclictest0-21swapper/311:39:083
161059950,5cyclictest0-21swapper/311:34:543
161059950,5cyclictest0-21swapper/310:46:533
161059950,5cyclictest0-21swapper/310:40:123
161049955,0cyclictest0-21swapper/211:40:082
161049955,0cyclictest0-21swapper/211:40:082
161049954,1cyclictest7323-21diskstats09:00:132
161049951,2cyclictest0-21swapper/208:10:122
161049951,2cyclictest0-21swapper/207:45:122
161049950,5cyclictest29412-21sh11:09:172
161049950,5cyclictest0-21swapper/211:27:292
161049950,5cyclictest0-21swapper/210:55:102
161049950,5cyclictest0-21swapper/209:24:492
161049950,5cyclictest0-21swapper/208:55:252
161049950,4cyclictest12698-21apt-get10:45:132
161049950,4cyclictest0-21swapper/208:05:122
160999951,3cyclictest0-21swapper/109:35:131
160999951,2cyclictest0-21swapper/108:55:121
160999950,5cyclictest0-21swapper/111:06:321
160959955,0cyclictest0-21swapper/010:29:280
160959954,1cyclictest0-21swapper/009:21:570
160959950,5cyclictest0-21swapper/011:03:310
160959950,4cyclictest32055-21ssh10:22:340
160959950,2cyclictest0-21swapper/009:50:120
161059944,0cyclictest0-21swapper/311:11:113
161059944,0cyclictest0-21swapper/309:35:013
161059944,0cyclictest0-21swapper/308:05:133
161059942,1cyclictest802-21snmpd11:02:583
161059942,1cyclictest31818-21wget08:45:113
161059940,4cyclictest32586-21ssh10:06:493
161059940,4cyclictest12048-21apt-get09:10:133
161059940,4cyclictest11494-21diskmemload10:15:213
161059940,4cyclictest10231-21perl08:00:143
161059940,4cyclictest0-21swapper/312:12:063
161059940,4cyclictest0-21swapper/312:06:423
161059940,4cyclictest0-21swapper/312:00:113
161059940,4cyclictest0-21swapper/311:50:113
161059940,4cyclictest0-21swapper/311:20:113
161059940,4cyclictest0-21swapper/310:55:123
161059940,4cyclictest0-21swapper/310:50:123
161059940,4cyclictest0-21swapper/310:38:263
161059940,4cyclictest0-21swapper/310:20:143
161059940,4cyclictest0-21swapper/310:02:433
161059940,4cyclictest0-21swapper/309:55:593
161059940,4cyclictest0-21swapper/309:25:143
161059940,4cyclictest0-21swapper/309:20:123
161059940,4cyclictest0-21swapper/309:15:283
161059940,4cyclictest0-21swapper/308:40:123
161059940,4cyclictest0-21swapper/307:20:123
161059940,3cyclictest9897-21irqstats11:15:153
161059940,3cyclictest8604-21grep09:00:203
161059940,3cyclictest66942sleep307:54:043
161059940,3cyclictest4071-21latency_hist08:55:003
161059940,3cyclictest32569-21df_inode07:40:143
161059940,3cyclictest31116-21sh12:30:023
161059940,3cyclictest28260-21ps08:35:203
161059940,3cyclictest28141-21ntp_states07:30:173
161059940,3cyclictest21503-21rm11:05:133
161059940,3cyclictest19359-21sh09:45:103
161059940,3cyclictest17311-21wc07:10:163
161059940,3cyclictest1264-21/usr/sbin/munin12:15:123
161059940,3cyclictest11984-21perl12:20:143
161059940,3cyclictest0-21swapper/311:45:113
161059940,3cyclictest0-21swapper/310:11:583
161059940,1cyclictest25074-21fschecks_time08:30:143
161049944,0cyclictest0-21swapper/211:51:292
161049944,0cyclictest0-21swapper/210:44:512
161049944,0cyclictest0-21swapper/209:05:022
161049944,0cyclictest0-21swapper/208:15:152
161049943,1cyclictest26327-21gltestperf11:55:152
161049943,1cyclictest25469-21head10:35:142
161049943,1cyclictest13469-21ntp_states09:10:192
161049942,1cyclictest31788-21/usr/sbin/munin08:45:192
161049942,1cyclictest0-21swapper/211:30:122
161049941,3cyclictest26439-21sh10:04:202
161049941,2cyclictest0-21swapper/210:15:132
161049940,4cyclictest32023-21apt-get07:40:012
161049940,4cyclictest0-21swapper/212:25:112
161049940,4cyclictest0-21swapper/212:21:102
161049940,4cyclictest0-21swapper/212:15:462
161049940,4cyclictest0-21swapper/212:10:092
161049940,4cyclictest0-21swapper/212:01:422
161049940,4cyclictest0-21swapper/211:39:422
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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