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2026-09-08 - 07:22
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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 Tue Sep 08, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
234732202187,11sleep10-21swapper/119:08:191
233492197181,12sleep30-21swapper/319:06:453
234772183165,13sleep00-21swapper/019:08:220
233432182164,13sleep20-21swapper/219:06:402
243482480,0sleep30-21swapper/323:35:553
46172430,0sleep10-21swapper/100:30:541
270362430,0sleep00-21swapper/023:21:190
87992420,0sleep08801-21rm00:33:330
168122410,0sleep10-21swapper/122:28:161
240882130,0sleep00-21swapper/023:04:180
240882130,0sleep00-21swapper/023:04:180
30390280,0sleep10-21swapper/121:15:141
238019981,6cyclictest0-21swapper/020:55:100
238119970,6cyclictest0-21swapper/323:50:153
238019971,3cyclictest3220-21munin-run21:50:010
27649260,0sleep30-21swapper/321:30:013
238069965,1cyclictest0-21swapper/200:16:062
238029960,6cyclictest0-21swapper/121:28:131
238019960,3cyclictest27520-21munin-run22:50:010
28629250,0sleep10-21swapper/122:50:181
26243250,0sleep10-21swapper/122:00:291
238119955,0cyclictest26342-21kworker/3:222:28:443
238119955,0cyclictest26342-21kworker/3:220:03:093
238119950,5cyclictest0-21swapper/300:35:113
238119950,4cyclictest2143-21apt-get19:30:133
238069955,0cyclictest26541-21ssh23:53:512
238069955,0cyclictest0-21swapper/223:43:052
238069953,2cyclictest1203-21kworker/2:019:40:012
238069950,5cyclictest0-21swapper/221:57:272
238069950,5cyclictest0-21swapper/221:37:132
238069950,5cyclictest0-21swapper/221:28:472
238069950,5cyclictest0-21swapper/200:25:342
238069950,0cyclictest0-21swapper/223:02:292
238069950,0cyclictest0-21swapper/223:02:292
238029951,2cyclictest0-21swapper/121:40:131
238029950,5cyclictest0-21swapper/123:31:271
238029950,5cyclictest0-21swapper/122:17:581
238029950,5cyclictest0-21swapper/100:39:061
7624240,0sleep10-21swapper/122:23:551
7292240,0sleep10-21swapper/123:44:181
238119944,0cyclictest26342-21kworker/3:221:55:083
238119943,1cyclictest7680-21ssh21:20:053
238119943,1cyclictest26342-21kworker/3:200:20:393
238119943,1cyclictest15447-21grep19:55:153
238119942,1cyclictest1286-21ssh21:16:183
238119941,2cyclictest15495-21ssh23:00:033
238119941,2cyclictest15495-21ssh23:00:033
238119940,4cyclictest824-21lldpd00:05:053
238119940,4cyclictest7260-21apt-get20:45:113
238119940,4cyclictest5834-21apt-get21:35:133
238119940,4cyclictest30334-21ssh00:11:213
238119940,4cyclictest25635-21ssh22:16:223
238119940,4cyclictest11401-21ssh00:02:013
238119940,4cyclictest0-21swapper/323:55:113
238119940,4cyclictest0-21swapper/323:45:123
238119940,4cyclictest0-21swapper/323:40:123
238119940,4cyclictest0-21swapper/323:30:073
238119940,4cyclictest0-21swapper/323:27:473
238119940,4cyclictest0-21swapper/323:05:343
238119940,4cyclictest0-21swapper/322:55:063
238119940,4cyclictest0-21swapper/322:52:393
238119940,4cyclictest0-21swapper/322:10:143
238119940,4cyclictest0-21swapper/321:40:123
238119940,4cyclictest0-21swapper/321:10:193
238119940,4cyclictest0-21swapper/300:31:333
238119940,4cyclictest0-21swapper/300:15:103
238119940,3cyclictest9134-21ssh21:52:253
238119940,3cyclictest7625-21ssh22:40:043
238119940,3cyclictest5843-21/usr/sbin/munin19:35:173
238119940,3cyclictest5776-21ssh23:10:333
238119940,3cyclictest498-21dbus-daemon20:05:203
238119940,3cyclictest31315-21awk20:25:193
238119940,3cyclictest30196-21ssh22:35:123
238119940,3cyclictest2904-21ssh22:05:173
238119940,3cyclictest28206-21/usr/sbin/munin21:30:193
238119940,3cyclictest26200-21users00:25:213
238119940,3cyclictest23409-21sh23:20:113
238119940,3cyclictest20755-21ssh22:45:493
238119940,3cyclictest1908-21latency_hist19:30:013
238119940,3cyclictest14160-21perl23:15:143
238119940,3cyclictest1377-21latency_hist22:05:013
238119940,3cyclictest12194-21/usr/sbin/munin20:55:103
238119940,3cyclictest1163-21grep20:30:183
238119940,3cyclictest10380-21tune2fs20:50:123
238069944,0cyclictest7987-21ssh23:11:562
238069944,0cyclictest0-21swapper/222:50:072
238069944,0cyclictest0-21swapper/222:34:592
238069944,0cyclictest0-21swapper/221:40:432
238069944,0cyclictest0-21swapper/221:23:062
238069944,0cyclictest0-21swapper/220:33:202
238069944,0cyclictest0-21swapper/220:00:012
238069944,0cyclictest0-21swapper/219:19:342
238069943,1cyclictest23060-21perl20:10:142
238069943,1cyclictest1203-21kworker/2:020:54:252
238069941,3cyclictest30545-21awk19:20:142
238069941,3cyclictest19395-21diskmemload22:35:142
238069941,1cyclictest0-21swapper/220:20:112
238069940,4cyclictest8918-21apt-get23:45:122
238069940,4cyclictest7861-21apt-get22:40:122
238069940,4cyclictest5598-21irqstats19:35:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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