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2026-09-02 - 03:26
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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 Wed Sep 02, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32132196181,11sleep10-21swapper/119:08:481
31082196163,28sleep30-21swapper/319:07:253
30162186170,11sleep00-21swapper/019:06:140
29862176158,13sleep20-21swapper/219:05:512
181482440,0sleep00-21swapper/000:02:420
42892430,0sleep00-21swapper/022:34:160
26732430,0sleep20-21swapper/222:49:552
122492430,0sleep20-21swapper/221:49:142
130262390,0sleep00-21swapper/000:33:130
34809970,6cyclictest10123-21ntp_states22:20:183
34809970,6cyclictest0-21swapper/323:00:103
34709960,3cyclictest23898-21munin-run20:54:590
34809955,0cyclictest28313-21kworker/3:023:55:103
34809955,0cyclictest28313-21kworker/3:023:32:483
34809955,0cyclictest28313-21kworker/3:022:47:593
34809955,0cyclictest28313-21kworker/3:022:14:243
34809955,0cyclictest0-21swapper/322:07:053
34809955,0cyclictest0-21swapper/322:00:323
34809950,5cyclictest30632-21ssh00:09:263
34809950,5cyclictest0-21swapper/322:34:173
34809950,5cyclictest0-21swapper/321:56:533
34809950,5cyclictest0-21swapper/321:32:443
34809950,5cyclictest0-21swapper/321:27:033
34809950,5cyclictest0-21swapper/300:03:023
34769950,5cyclictest0-21swapper/223:26:072
34769950,5cyclictest0-21swapper/221:42:412
34769950,5cyclictest0-21swapper/200:33:122
34769950,5cyclictest0-21swapper/200:21:082
34769950,0cyclictest0-21swapper/221:31:452
34719951,3cyclictest0-21swapper/100:10:131
34719951,2cyclictest0-21swapper/122:55:111
34719951,2cyclictest0-21swapper/122:40:121
34719951,2cyclictest0-21swapper/121:20:121
34719951,2cyclictest0-21swapper/120:30:131
34719951,2cyclictest0-21swapper/119:45:101
34719950,3cyclictest0-21swapper/119:40:101
34709955,0cyclictest3-21ksoftirqd/021:50:000
34709950,5cyclictest0-21swapper/023:55:100
34709950,5cyclictest0-21swapper/023:44:240
34709950,4cyclictest3359-21apt-get22:50:130
34709950,0cyclictest0-21swapper/022:06:470
28970250,0sleep10-21swapper/121:05:001
34809944,0cyclictest40-21ksoftirqd/300:35:003
34809944,0cyclictest28313-21kworker/3:022:25:363
34809944,0cyclictest28313-21kworker/3:021:40:493
34809944,0cyclictest28313-21kworker/3:021:07:153
34809944,0cyclictest28313-21kworker/3:020:44:523
34809944,0cyclictest28313-21kworker/3:020:00:033
34809944,0cyclictest28313-21kworker/3:019:48:523
34809944,0cyclictest28313-21kworker/3:019:37:393
34809944,0cyclictest28313-21kworker/3:019:26:273
34809944,0cyclictest0-21swapper/321:20:393
34809943,1cyclictest7613-21sed20:20:153
34809943,1cyclictest21608-21grep23:15:143
34809941,2cyclictest0-21swapper/319:40:113
34809940,4cyclictest7576-21perl19:15:153
34809940,4cyclictest7576-21perl19:15:153
34809940,4cyclictest29073-21latency_hist19:59:593
34809940,4cyclictest19278-21apt-get00:20:123
34809940,4cyclictest0-21swapper/323:45:113
34809940,4cyclictest0-21swapper/323:35:113
34809940,4cyclictest0-21swapper/323:25:043
34809940,4cyclictest0-21swapper/323:20:113
34809940,4cyclictest0-21swapper/323:05:123
34809940,4cyclictest0-21swapper/322:55:113
34809940,4cyclictest0-21swapper/322:50:583
34809940,4cyclictest0-21swapper/322:43:563
34809940,4cyclictest0-21swapper/321:45:333
34809940,4cyclictest0-21swapper/321:15:323
34809940,4cyclictest0-21swapper/300:39:063
34809940,4cyclictest0-21swapper/300:25:113
34809940,4cyclictest0-21swapper/300:10:123
34809940,3cyclictest9243-21ssh00:15:043
34809940,3cyclictest6023-21ssh21:13:213
34809940,3cyclictest32321-21diskstats20:05:123
34809940,3cyclictest31912-21grep22:15:153
34809940,3cyclictest25066-21ssh23:50:113
34809940,3cyclictest19472-21ssh21:35:513
34809940,3cyclictest17516-21ssh21:51:163
34809940,3cyclictest14391-21ssh22:39:283
34809940,3cyclictest11749-21/usr/sbin/munin20:30:133
34809940,3cyclictest10746-21ssh23:42:333
34809940,3cyclictest10710-21ssh23:10:113
34809940,1cyclictest5923-21systemctl19:15:003
34769944,0cyclictest0-21swapper/223:55:312
34769944,0cyclictest0-21swapper/220:00:222
34769942,2cyclictest0-21swapper/223:50:062
34769942,2cyclictest0-21swapper/223:40:302
34769942,2cyclictest0-21swapper/222:53:152
34769942,1cyclictest28740-21ssh00:25:012
34769940,4cyclictest31321-21diskmemload23:35:122
34769940,4cyclictest31321-21diskmemload00:11:382
34769940,4cyclictest22942-21ssh23:00:042
34769940,4cyclictest0-21swapper/223:30:192
34769940,4cyclictest0-21swapper/223:20:112
34769940,4cyclictest0-21swapper/223:15:032
34769940,4cyclictest0-21swapper/223:12:192
34769940,4cyclictest0-21swapper/222:35:122
34769940,4cyclictest0-21swapper/222:31:302
34769940,4cyclictest0-21swapper/222:28:042
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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