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2026-03-25 - 12:22
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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 Wed Mar 25, 2026 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
89212192177,10sleep10-21swapper/119:09:361
87742189171,13sleep30-21swapper/319:07:423
86282181164,12sleep00-21swapper/019:05:500
86102166147,14sleep20-21swapper/219:05:372
244682590,0sleep30-21swapper/300:29:493
107672440,0sleep00-21swapper/021:44:120
145732430,0sleep10-21swapper/123:05:111
144952170,0sleep10-21swapper/121:45:221
105642120,0sleep30-21swapper/321:28:093
29312110,0sleep30-21swapper/320:00:143
161002110,0sleep10-21swapper/119:20:171
106952110,0sleep10-21swapper/100:06:221
91279992,3cyclictest32737-21munin-run23:30:000
91279980,4cyclictest2303-21munin-run20:00:010
91379970,6cyclictest0-21swapper/221:40:132
91379970,6cyclictest0-21swapper/220:05:112
91339971,3cyclictest0-21swapper/122:20:121
91279973,4cyclictest1852-21munin-run21:40:000
91429960,1cyclictest2514-21awk00:35:003
91379960,6cyclictest0-21swapper/223:44:452
91429955,0cyclictest17091-21kworker/3:023:59:293
91429955,0cyclictest17091-21kworker/3:023:37:073
91429955,0cyclictest17091-21kworker/3:000:21:563
91429955,0cyclictest11674-21kworker/3:221:34:013
91429955,0cyclictest11674-21kworker/3:220:49:113
91429955,0cyclictest11674-21kworker/3:219:30:473
91429955,0cyclictest11674-21kworker/3:219:19:363
91429950,5cyclictest0-21swapper/323:04:183
91429950,5cyclictest0-21swapper/321:55:463
91429950,4cyclictest24177-21ssh23:09:573
91429950,3cyclictest29253-21ssh22:08:593
91429950,0cyclictest0-21swapper/323:45:463
91379954,1cyclictest20122-21rm00:27:062
91379952,3cyclictest23271-21ssh22:21:132
91379950,5cyclictest0-21swapper/223:25:512
91379950,5cyclictest0-21swapper/222:32:442
91379950,5cyclictest0-21swapper/222:01:352
91379950,5cyclictest0-21swapper/221:54:102
91379950,5cyclictest0-21swapper/221:25:042
91379950,4cyclictest31268-21ssh23:45:112
91379950,4cyclictest19131-21ssh23:55:132
91379950,3cyclictest0-21swapper/222:45:062
91379950,0cyclictest0-21swapper/223:10:512
91379950,0cyclictest0-21swapper/200:03:582
91339952,2cyclictest0-21swapper/100:30:111
91339951,2cyclictest0-21swapper/123:45:111
91339951,2cyclictest0-21swapper/122:10:131
91339951,2cyclictest0-21swapper/121:25:131
91339951,2cyclictest0-21swapper/119:55:111
91339951,2cyclictest0-21swapper/119:50:121
91339950,5cyclictest0-21swapper/122:40:591
91339950,5cyclictest0-21swapper/100:25:531
91339950,5cyclictest0-21swapper/100:15:501
91279953,2cyclictest5114-21ssh00:20:110
91279952,3cyclictest814-21snmpd00:19:420
91279950,5cyclictest17119-21apt-get00:10:130
91279950,5cyclictest0-21swapper/019:45:110
91429944,0cyclictest11674-21kworker/3:221:45:083
91429944,0cyclictest11674-21kworker/3:221:00:223
91429944,0cyclictest0-21swapper/323:51:093
91429944,0cyclictest0-21swapper/322:55:173
91429944,0cyclictest0-21swapper/321:41:393
91429943,1cyclictest16416-21grep21:15:133
91429942,1cyclictest9716-21cron20:15:013
91429941,1cyclictest814-21snmpd23:14:413
91429940,4cyclictest6324-21ssh22:13:323
91429940,4cyclictest30021-21apt-get22:25:143
91429940,4cyclictest23677-21perl21:50:143
91429940,4cyclictest20931-21sed22:05:013
91429940,4cyclictest14916-21sed23:20:213
91429940,4cyclictest0-21swapper/323:30:113
91429940,4cyclictest0-21swapper/323:18:543
91429940,4cyclictest0-21swapper/322:50:173
91429940,4cyclictest0-21swapper/322:32:003
91429940,4cyclictest0-21swapper/322:15:113
91429940,4cyclictest0-21swapper/319:54:593
91429940,4cyclictest0-21swapper/319:35:133
91429940,4cyclictest0-21swapper/300:15:023
91429940,4cyclictest0-21swapper/300:00:093
91429940,3cyclictest3338-21hddtemp_smartct21:05:173
91429940,3cyclictest31126-21ssh21:38:083
91429940,3cyclictest2923-21rm00:35:003
91429940,3cyclictest25706-21taskset21:20:013
91429940,3cyclictest24544-21ntp_states23:25:183
91429940,3cyclictest22372-21ssh22:20:413
91429940,3cyclictest21905-21fschecks_time23:40:143
91429940,3cyclictest19830-21latency_hist20:35:013
91429940,3cyclictest19317-21wc22:35:173
91429940,3cyclictest18556-21ntp_states00:10:183
91429940,3cyclictest17593-21/usr/sbin/munin20:30:223
91429940,3cyclictest15092-21sed20:25:003
91429940,3cyclictest1083-21ssh22:42:143
91429940,3cyclictest0-21swapper/319:25:113
91429940,1cyclictest5845-21hddtemp_smartct20:05:153
91429940,1cyclictest14964-21/usr/sbin/munin19:20:203
91429940,1cyclictest11485-21munin-run19:15:003
91379944,0cyclictest0-21swapper/221:46:462
91379942,1cyclictest1141-21awk22:10:232
91379941,3cyclictest814-21snmpd22:18:112
91379941,3cyclictest4741-21diskmemload23:37:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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