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2026-08-14 - 23:11
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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 Aug 14, 2026 12:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272132203187,12sleep10-21swapper/107:06:561
271402185166,14sleep00-21swapper/007:05:580
271332185168,12sleep30-21swapper/307:05:523
252412174157,13sleep20-21swapper/207:05:112
68612460,0sleep20-21swapper/209:17:362
75042440,0sleep30-21swapper/311:11:463
84962420,0sleep00-21swapper/009:50:270
146202410,0sleep00-21swapper/010:43:010
69142390,0sleep10-21swapper/111:44:581
37912100,0sleep20-21swapper/209:32:162
268652100,0sleep10-21swapper/109:11:011
192522100,0sleep00-21swapper/012:24:010
20791290,0sleep220800-21sendmail08:00:002
276619971,3cyclictest13919-21munin-run12:05:010
276619962,4cyclictest22472-21perf11:20:000
276719955,0cyclictest23248-21diskmemload12:35:243
276719955,0cyclictest1413-21kworker/3:210:19:463
276719952,2cyclictest0-21swapper/308:05:123
276719950,5cyclictest0-21swapper/312:04:503
276719950,5cyclictest0-21swapper/311:42:003
276719950,5cyclictest0-21swapper/310:20:473
276719950,5cyclictest0-21swapper/309:20:513
276719950,1cyclictest24801-21diskstats12:10:123
276719950,0cyclictest23248-21diskmemload09:50:323
276659950,5cyclictest0-21swapper/211:39:252
276659950,5cyclictest0-21swapper/210:47:542
276659950,5cyclictest0-21swapper/210:26:492
276659950,5cyclictest0-21swapper/210:22:012
276659950,1cyclictest16085-21/usr/sbin/munin07:50:192
276629952,2cyclictest0-21swapper/111:25:111
276629950,5cyclictest0-21swapper/109:57:031
276629950,0cyclictest0-21swapper/110:40:241
276619950,5cyclictest0-21swapper/009:00:120
276619950,4cyclictest28776-21ssh09:45:120
276619950,4cyclictest18167-21ssh09:23:260
14433250,0sleep00-21swapper/011:48:290
8535240,0sleep20-21swapper/212:01:342
31997240,0sleep10-21swapper/111:57:081
29885240,0sleep00-21swapper/009:29:340
29799240,0sleep10-21swapper/109:29:321
276719944,0cyclictest19627-21kworker/3:109:35:003
276719944,0cyclictest19627-21kworker/3:107:43:003
276719944,0cyclictest19627-21kworker/3:107:31:493
276719944,0cyclictest1413-21kworker/3:212:34:073
276719944,0cyclictest0-21swapper/312:18:303
276719944,0cyclictest0-21swapper/311:58:353
276719943,1cyclictest14283-21cut07:45:153
276719942,2cyclictest9089-21ssh11:45:193
276719942,1cyclictest31711-21ssh09:45:553
276719941,2cyclictest0-21swapper/307:50:113
276719941,1cyclictest0-21swapper/310:25:113
276719941,1cyclictest0-21swapper/308:25:113
276719940,4cyclictest18611-21apt-get09:40:123
276719940,4cyclictest0-21swapper/312:25:123
276719940,4cyclictest0-21swapper/312:20:043
276719940,4cyclictest0-21swapper/312:06:073
276719940,4cyclictest0-21swapper/311:38:253
276719940,4cyclictest0-21swapper/311:32:153
276719940,4cyclictest0-21swapper/311:24:263
276719940,4cyclictest0-21swapper/311:06:173
276719940,4cyclictest0-21swapper/311:00:223
276719940,4cyclictest0-21swapper/310:53:103
276719940,4cyclictest0-21swapper/310:48:453
276719940,4cyclictest0-21swapper/310:30:463
276719940,4cyclictest0-21swapper/310:10:133
276719940,4cyclictest0-21swapper/309:55:123
276719940,4cyclictest0-21swapper/309:16:423
276719940,4cyclictest0-21swapper/308:50:113
276719940,3cyclictest6142-21/usr/sbin/munin08:35:173
276719940,3cyclictest4416-21perl08:30:133
276719940,3cyclictest32324-21ntp_states10:35:183
276719940,3cyclictest31999-21hddtemp_smartct08:20:153
276719940,3cyclictest22257-21ntpq09:05:173
276719940,3cyclictest20782-21munin-run09:05:003
276719940,3cyclictest19083-21df_inode07:55:143
276719940,3cyclictest16795-21sh11:16:233
276719940,3cyclictest14620-21taskset10:43:013
276719940,3cyclictest14269-21ssh09:37:373
276719940,3cyclictest13420-21latency_hist10:10:023
276719940,3cyclictest1042-21/usr/sbin/munin07:20:163
276719940,3cyclictest0-21swapper/311:25:113
276719940,1cyclictest10889-21awk08:45:003
276719940,0cyclictest0-21swapper/309:27:413
276659944,0cyclictest0-21swapper/212:38:032
276659944,0cyclictest0-21swapper/210:41:132
276659944,0cyclictest0-21swapper/209:50:172
276659943,1cyclictest57150irq/125-eth011:55:102
276659943,1cyclictest57150irq/125-eth011:55:002
276659943,1cyclictest30113-21grep08:15:192
276659943,1cyclictest28064-21grep10:00:192
276659941,3cyclictest1794-21fschecks_count08:25:132
276659940,4cyclictest4577-21ssh10:54:362
276659940,4cyclictest0-21swapper/212:15:122
276659940,4cyclictest0-21swapper/212:10:122
276659940,4cyclictest0-21swapper/212:05:132
276659940,4cyclictest0-21swapper/211:45:132
276659940,4cyclictest0-21swapper/211:40:122
276659940,4cyclictest0-21swapper/211:25:102
276659940,4cyclictest0-21swapper/209:25:542
276659940,4cyclictest0-21swapper/209:10:122
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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