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2026-08-27 - 10:37
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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 27, 2026 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
30352197182,11sleep10-21swapper/119:09:081
28992196179,12sleep30-21swapper/319:07:213
29212185169,11sleep00-21swapper/019:07:380
27742180162,13sleep20-21swapper/219:05:442
5572460,0sleep30-21swapper/300:10:113
50912440,1sleep05093-21rt-features23:55:180
216762430,0sleep00-21swapper/022:25:310
177492430,0sleep00-21swapper/020:40:130
258562420,0sleep10-21swapper/100:05:441
159912410,0sleep10-21swapper/123:28:331
277142110,0sleep3391ktimersoftd/322:12:573
32929991,4cyclictest11578-21awk19:25:010
32979970,6cyclictest0-21swapper/222:15:032
33039960,6cyclictest17262-21ssh22:24:093
33039960,6cyclictest0-21swapper/322:42:493
33039960,6cyclictest0-21swapper/322:06:053
33039960,6cyclictest0-21swapper/321:16:263
33039960,1cyclictest24285-21ssh23:49:133
33039960,1cyclictest0-21swapper/323:52:053
33039960,1cyclictest0-21swapper/321:35:583
32929966,0cyclictest0-21swapper/000:14:590
13718260,1sleep1211ktimersoftd/121:50:011
33039955,0cyclictest0-21swapper/320:05:173
33039952,3cyclictest31520-21diskmemload23:41:173
33039952,3cyclictest0-21swapper/322:45:133
33039952,3cyclictest0-21swapper/322:45:133
33039952,3cyclictest0-21swapper/322:37:373
33039952,3cyclictest0-21swapper/322:30:013
33039952,3cyclictest0-21swapper/321:11:143
33039952,3cyclictest0-21swapper/300:32:093
33039950,5cyclictest29247-21grep23:35:133
33039950,5cyclictest0-21swapper/323:30:493
33039950,5cyclictest0-21swapper/323:26:253
33039950,5cyclictest0-21swapper/323:21:533
33039950,5cyclictest0-21swapper/323:10:133
33039950,5cyclictest0-21swapper/323:07:103
33039950,5cyclictest0-21swapper/323:03:093
33039950,5cyclictest0-21swapper/322:58:093
33039950,5cyclictest0-21swapper/322:26:213
33039950,5cyclictest0-21swapper/322:15:013
33039950,5cyclictest0-21swapper/322:01:573
33039950,5cyclictest0-21swapper/321:54:053
33039950,5cyclictest0-21swapper/321:27:183
33039950,5cyclictest0-21swapper/321:22:423
33039950,5cyclictest0-21swapper/300:35:173
33039950,5cyclictest0-21swapper/300:27:293
33039950,5cyclictest0-21swapper/300:20:333
33039950,5cyclictest0-21swapper/300:08:333
33039950,1cyclictest0-21swapper/323:17:093
33039950,0cyclictest31520-21diskmemload21:55:133
33039950,0cyclictest14749-21ssh21:34:063
33039950,0cyclictest11266-21hddtemp_smartct00:15:133
32979955,0cyclictest0-21swapper/223:55:272
32979950,5cyclictest30058-21apt00:25:112
32979950,5cyclictest0-21swapper/223:25:202
32979950,5cyclictest0-21swapper/221:22:502
32979950,0cyclictest0-21swapper/222:08:132
32959951,3cyclictest0-21swapper/123:40:111
32959951,3cyclictest0-21swapper/122:20:131
32959951,3cyclictest0-21swapper/120:05:131
32959951,3cyclictest0-21swapper/100:20:131
32959951,2cyclictest0-21swapper/121:10:101
32959951,2cyclictest0-21swapper/119:55:121
32959950,0cyclictest0-21swapper/122:06:461
32929953,1cyclictest16931-21/usr/sbin/munin19:35:190
32929950,5cyclictest0-21swapper/023:50:250
32929950,5cyclictest0-21swapper/019:30:130
32929950,4cyclictest19307-21/usr/sbin/munin21:20:150
2533250,0sleep10-21swapper/122:16:071
33039944,0cyclictest0-21swapper/320:15:283
33039943,1cyclictest23036-21needreboot20:50:163
33039942,2cyclictest0-21swapper/321:41:063
33039942,1cyclictest205-21systemd-journal19:50:013
33039940,4cyclictest28392-21sed21:00:193
33039940,4cyclictest0-21swapper/323:55:053
33039940,4cyclictest0-21swapper/322:50:133
33039940,4cyclictest0-21swapper/321:45:533
33039940,4cyclictest0-21swapper/319:35:113
33039940,4cyclictest0-21swapper/319:10:103
33039940,3cyclictest26565-21latency_hist21:00:003
33039940,3cyclictest21618-21latency_hist20:50:003
33039940,3cyclictest15041-21fschecks_count20:35:143
33039940,3cyclictest14740-21ntp_states00:00:173
33039940,3cyclictest14243-21sed19:30:013
32979944,0cyclictest291rcuc/220:15:132
32979944,0cyclictest0-21swapper/223:13:162
32979944,0cyclictest0-21swapper/222:36:532
32979944,0cyclictest0-21swapper/222:30:462
32979944,0cyclictest0-21swapper/200:32:422
32979943,1cyclictest31-21ksoftirqd/200:20:142
32979943,1cyclictest17662-21kworker/2:119:25:532
32979942,2cyclictest17662-21kworker/2:123:52:012
32979942,2cyclictest17662-21kworker/2:100:17:412
32979942,1cyclictest17713-21ssh21:19:212
32979941,3cyclictest802-21snmpd21:46:462
32979941,1cyclictest0-21swapper/223:35:112
32979941,1cyclictest0-21swapper/222:55:112
32979940,4cyclictest18811-21apt-get23:30:122
32979940,4cyclictest0-21swapper/223:45:112
32979940,4cyclictest0-21swapper/223:18:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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