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2025-11-14 - 14:17
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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 Nov 14, 2025 12:44:41)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27382204188,11sleep10-21swapper/107:08:521
5962186170,11sleep30-21swapper/307:05:133
26952183166,12sleep00-21swapper/007:08:190
27222117100,12sleep20-21swapper/207:08:412
146092410,0sleep10-21swapper/109:50:011
258252100,0sleep20-21swapper/212:37:492
6354290,0sleep10-21swapper/110:17:521
29899991,7cyclictest0-21swapper/211:40:122
29919970,6cyclictest0-21swapper/310:05:103
29769973,4cyclictest7884-21idleruntime-cro11:39:590
29769960,3cyclictest6119-21basename08:20:000
29769960,3cyclictest13725-21awk08:35:000
29769960,3cyclictest12471-21munin-run11:09:590
2955260,0sleep20-21swapper/212:25:472
29919955,0cyclictest24779-21kworker/3:012:20:393
29919955,0cyclictest24779-21kworker/3:011:58:153
29919955,0cyclictest17347-21kworker/3:210:39:523
29919955,0cyclictest17347-21kworker/3:210:17:293
29919955,0cyclictest17347-21kworker/3:209:55:053
29919955,0cyclictest17347-21kworker/3:209:43:563
29919955,0cyclictest17347-21kworker/3:209:21:313
29919955,0cyclictest17347-21kworker/3:208:59:073
29919955,0cyclictest17347-21kworker/3:208:47:553
29919955,0cyclictest17347-21kworker/3:208:36:433
29919955,0cyclictest17347-21kworker/3:208:25:293
29919952,3cyclictest714-21snmpd10:14:153
29919951,1cyclictest0-21swapper/309:45:113
29919950,5cyclictest12915-21apt-get11:10:023
29919950,5cyclictest10362-21python07:20:203
29919950,5cyclictest0-21swapper/309:13:173
29919950,1cyclictest18486-21diskstats10:40:153
29899955,0cyclictest0-21swapper/212:31:112
29899950,5cyclictest0-21swapper/211:21:212
29899950,0cyclictest31591-21ssh12:07:552
29819951,2cyclictest0-21swapper/109:40:131
29819950,5cyclictest0-21swapper/111:45:371
29819950,5cyclictest0-21swapper/110:24:341
29819950,5cyclictest0-21swapper/110:08:161
29819950,5cyclictest0-21swapper/109:14:261
29819950,5cyclictest0-21swapper/108:19:591
29769955,0cyclictest0-21swapper/011:40:160
29769955,0cyclictest0-21swapper/009:25:140
29769955,0cyclictest0-21swapper/009:15:370
29769950,5cyclictest18678-21munin-run08:45:000
29769950,5cyclictest0-21swapper/010:43:220
29769950,5cyclictest0-21swapper/010:32:100
29769950,5cyclictest0-21swapper/009:23:030
29769950,4cyclictest28239-21ssh11:50:110
29769950,4cyclictest10399-21ssh10:20:150
29769950,0cyclictest0-21swapper/011:10:170
29919944,0cyclictest17347-21kworker/3:210:28:413
29919944,0cyclictest17347-21kworker/3:208:03:063
29919944,0cyclictest17347-21kworker/3:207:18:213
29919944,0cyclictest0-21swapper/311:33:333
29919944,0cyclictest0-21swapper/311:08:483
29919943,1cyclictest55950irq/130-eth012:30:103
29919943,1cyclictest40-21ksoftirqd/308:20:003
29919943,1cyclictest12822-21/usr/sbin/munin12:15:213
29919942,2cyclictest548-21ssh11:35:203
29919942,1cyclictest32394-21ssh12:25:043
29919940,4cyclictest8019-21df_inode09:30:153
29919940,4cyclictest0-21swapper/312:05:113
29919940,4cyclictest0-21swapper/311:40:383
29919940,4cyclictest0-21swapper/311:25:143
29919940,4cyclictest0-21swapper/311:20:343
29919940,4cyclictest0-21swapper/311:15:113
29919940,4cyclictest0-21swapper/310:20:153
29919940,3cyclictest32486-21sh10:46:553
29919940,3cyclictest30335-21diskstats09:25:153
29919940,3cyclictest30278-21/usr/sbin/munin10:30:133
29919940,3cyclictest20583-21grep12:35:153
29919940,3cyclictest18483-21sh09:51:103
29919940,3cyclictest18483-21sh09:51:103
29919940,3cyclictest13709-21latency_hist08:35:003
29919940,3cyclictest0-21swapper/307:40:113
29919940,3cyclictest0-21swapper/307:25:123
29919940,1cyclictest3112-21/usr/sbin/munin07:10:133
29919940,1cyclictest23881-21/usr/sbin/munin07:50:173
29919940,1cyclictest18326-21/usr/sbin/munin11:45:143
29919940,1cyclictest15585-21/usr/sbin/munin10:55:173
29919940,1cyclictest1355-21/usr/sbin/munin08:10:163
29919940,0cyclictest0-21swapper/312:04:233
29899944,0cyclictest0-21swapper/212:03:242
29899944,0cyclictest0-21swapper/211:16:062
29899944,0cyclictest0-21swapper/210:05:242
29899942,1cyclictest711-21runrttasks08:15:182
29899942,1cyclictest0-21swapper/208:25:162
29899941,3cyclictest18107-21ssh10:55:432
29899941,2cyclictest14972-21ssh12:15:222
29899941,2cyclictest0-21swapper/209:10:122
29899941,1cyclictest0-21swapper/207:55:122
29899940,4cyclictest21395-21apt-get07:45:012
29899940,4cyclictest0-21swapper/211:28:402
29899940,4cyclictest0-21swapper/211:00:222
29899940,4cyclictest0-21swapper/210:46:082
29899940,4cyclictest0-21swapper/210:28:522
29899940,4cyclictest0-21swapper/210:10:562
29899940,4cyclictest0-21swapper/209:46:332
29899940,4cyclictest0-21swapper/209:26:552
29899940,4cyclictest0-21swapper/208:35:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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