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2026-07-29 - 07:45
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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 Jul 29, 2026 00:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291092205190,11sleep10-21swapper/119:09:191
289092195177,13sleep30-21swapper/319:06:463
288862193176,12sleep00-21swapper/019:06:260
29100210487,13sleep20-21swapper/219:09:132
206492690,0sleep00-21swapper/021:55:170
260112500,1sleep12937899cyclictest22:30:121
218992470,0sleep00-21swapper/023:32:160
191642440,0sleep10-21swapper/123:30:341
249592430,0sleep10-21swapper/123:17:451
2937199153,8cyclictest5210-21munin-run19:25:000
7242120,0sleep30-21swapper/300:26:203
207602110,0sleep10-21swapper/121:39:481
6480290,0sleep00-21swapper/023:40:220
21657280,0sleep30-21swapper/323:48:383
293719971,5cyclictest0-21swapper/020:10:120
293929960,5cyclictest0-21swapper/222:40:122
293929960,5cyclictest0-21swapper/219:30:112
293789962,2cyclictest0-21swapper/120:40:111
293789960,6cyclictest0-21swapper/123:11:171
26004260,0sleep20-21swapper/221:41:462
294039955,0cyclictest11504-21kworker/3:220:41:403
294039955,0cyclictest11504-21kworker/3:219:12:053
294039952,3cyclictest802-21snmpd19:29:273
294039950,5cyclictest0-21swapper/323:52:473
294039950,5cyclictest0-21swapper/321:50:593
294039950,5cyclictest0-21swapper/319:45:163
294039950,4cyclictest8369-21irqstats00:30:153
294039950,4cyclictest0-21swapper/322:30:123
294039950,3cyclictest312792sleep322:16:173
293929955,0cyclictest0-21swapper/200:02:032
293929951,3cyclictest24944-21diskmemload22:30:022
293929950,5cyclictest19101-21apt-get23:15:122
293929950,5cyclictest0-21swapper/221:27:142
293929950,4cyclictest24944-21diskmemload00:25:132
293929950,0cyclictest0-21swapper/223:28:012
293929950,0cyclictest0-21swapper/221:52:162
293789951,2cyclictest0-21swapper/100:25:131
293789950,5cyclictest0-21swapper/122:52:571
293789950,5cyclictest0-21swapper/122:49:101
293789950,5cyclictest0-21swapper/100:10:131
293789950,3cyclictest0-21swapper/122:20:121
293719954,1cyclictest0-21swapper/022:58:420
293719951,2cyclictest0-21swapper/023:50:140
293719951,2cyclictest0-21swapper/023:10:110
293719950,5cyclictest0-21swapper/023:23:180
293719950,5cyclictest0-21swapper/023:17:370
293719950,5cyclictest0-21swapper/021:33:530
293719950,5cyclictest0-21swapper/021:22:570
293719950,5cyclictest0-21swapper/000:14:310
21208250,0sleep20-21swapper/222:11:202
294039944,0cyclictest11504-21kworker/3:221:15:133
294039944,0cyclictest0-21swapper/322:41:283
294039943,1cyclictest8300-21grep20:35:143
294039943,1cyclictest22750-21/usr/sbin/munin20:00:093
294039943,1cyclictest0-21swapper/323:40:113
294039942,2cyclictest21018-21ntpq21:55:193
294039942,1cyclictest22325-21fschecks_time21:40:143
294039940,4cyclictest30538-21perl22:00:153
294039940,4cyclictest21990-21diskmemload22:28:013
294039940,4cyclictest0-21swapper/323:55:243
294039940,4cyclictest0-21swapper/323:00:143
294039940,4cyclictest0-21swapper/322:50:113
294039940,4cyclictest0-21swapper/322:22:263
294039940,4cyclictest0-21swapper/322:05:123
294039940,4cyclictest0-21swapper/321:36:393
294039940,4cyclictest0-21swapper/321:22:003
294039940,4cyclictest0-21swapper/320:55:123
294039940,4cyclictest0-21swapper/320:45:133
294039940,3cyclictest9298-21ssh00:15:033
294039940,3cyclictest9298-21ssh00:15:033
294039940,3cyclictest8890-21irqstats19:30:153
294039940,3cyclictest8144-21ntp_states23:25:173
294039940,3cyclictest6438-21ssh23:08:433
294039940,3cyclictest31012-21hddtemp_smartct20:15:163
294039940,3cyclictest29714-21df_inode23:20:153
294039940,3cyclictest25491-21/usr/sbin/munin21:10:143
294039940,3cyclictest21653-21latency_hist00:05:003
294039940,3cyclictest20958-21tune2fs19:55:133
294039940,3cyclictest19098-21/usr/sbin/munin23:15:223
294039940,3cyclictest17497-21ssh22:10:113
294039940,1cyclictest27692-21/usr/sbin/munin20:10:143
294039940,1cyclictest26798-21/usr/sbin/munin23:35:213
294039940,1cyclictest19542-21/usr/sbin/munin00:20:173
294039940,1cyclictest16765-21/usr/sbin/munin23:30:193
293929943,1cyclictest9579-21ssh00:15:132
293929943,1cyclictest9579-21ssh00:15:122
293929943,1cyclictest11557-21tr22:55:142
293929940,4cyclictest4838-21ssh21:31:132
293929940,4cyclictest3159-21tr19:20:132
293929940,4cyclictest22674-21ssh23:49:152
293929940,4cyclictest13296-21apt-get21:20:132
293929940,4cyclictest0-21swapper/223:53:192
293929940,4cyclictest0-21swapper/223:43:262
293929940,4cyclictest0-21swapper/223:35:132
293929940,4cyclictest0-21swapper/223:30:132
293929940,4cyclictest0-21swapper/223:20:292
293929940,4cyclictest0-21swapper/223:10:112
293929940,4cyclictest0-21swapper/223:05:142
293929940,4cyclictest0-21swapper/222:45:002
293929940,4cyclictest0-21swapper/221:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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