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2025-11-23 - 07:59
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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 Sun Nov 23, 2025 00:44:40)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
215912202186,11sleep10-21swapper/119:08:271
215552192166,21sleep00-21swapper/019:07:590
216852187171,11sleep30-21swapper/319:09:433
216912171154,12sleep20-21swapper/219:09:452
170642480,0sleep10-21swapper/100:08:001
141122450,0sleep30-21swapper/323:34:093
109662450,0sleep10-21swapper/123:15:321
36242410,0sleep10-21swapper/121:50:381
309152410,0sleep10-21swapper/122:20:231
193982410,0sleep00-21swapper/000:25:180
28332360,0sleep10-21swapper/122:55:191
43222110,0sleep20-21swapper/223:12:382
12182100,0sleep10-21swapper/100:15:581
218879992,3cyclictest15055-21awk21:05:020
219019960,6cyclictest0-21swapper/322:25:133
218879960,3cyclictest4939-21munin-run00:35:000
218879960,3cyclictest12587-21perf21:00:010
17319260,0sleep317322-21gltestperf22:30:143
219019955,0cyclictest24437-21kworker/3:122:14:243
219019950,5cyclictest0-21swapper/321:49:043
219019950,5cyclictest0-21swapper/321:20:133
219019950,4cyclictest2925-21apt-get19:35:133
219019950,4cyclictest24237-21ssh21:12:583
219019950,4cyclictest17778-21apt-get20:05:143
219019950,3cyclictest0-21swapper/323:20:083
218969955,0cyclictest0-21swapper/223:07:012
218969950,5cyclictest31092-21ssh22:05:122
218969950,5cyclictest23764-21unixbench_multi19:10:232
218969950,5cyclictest0-21swapper/223:20:082
218969950,5cyclictest0-21swapper/221:32:092
218969950,5cyclictest0-21swapper/200:35:302
218969950,5cyclictest0-21swapper/200:30:072
218929951,2cyclictest0-21swapper/120:40:121
218929950,5cyclictest0-21swapper/122:43:521
218929950,5cyclictest0-21swapper/100:10:091
218929950,5cyclictest0-21swapper/100:02:251
218879955,0cyclictest0-21swapper/021:26:430
218879953,1cyclictest5457-21ssh00:35:120
218879950,5cyclictest0-21swapper/022:29:250
218879950,5cyclictest0-21swapper/021:31:570
218879950,4cyclictest1133-21ssh21:50:130
218879950,0cyclictest0-21swapper/023:28:290
218879950,0cyclictest0-21swapper/023:10:010
218879950,0cyclictest0-21swapper/022:17:120
3929240,0sleep00-21swapper/000:17:400
25611240,3sleep30-21swapper/322:18:233
22418240,0sleep20-21swapper/223:38:082
22222240,0sleep10-21swapper/122:49:221
219019944,0cyclictest24437-21kworker/3:123:55:123
219019944,0cyclictest24437-21kworker/3:123:10:243
219019944,0cyclictest24437-21kworker/3:121:18:253
219019944,0cyclictest24437-21kworker/3:100:06:243
219019944,0cyclictest0-21swapper/323:51:263
219019944,0cyclictest0-21swapper/321:44:343
219019943,1cyclictest28680-21irqstats20:25:183
219019943,1cyclictest25217-21/usr/sbin/munin20:20:193
219019943,1cyclictest13632-21hddtemp_smartct21:00:153
219019942,1cyclictest714-21snmpd20:14:593
219019942,1cyclictest12819-21/usr/sbin/munin19:55:213
219019941,3cyclictest55950irq/130-eth022:02:363
219019941,3cyclictest4142-21sh21:50:573
219019941,2cyclictest0-21swapper/323:05:113
219019941,1cyclictest0-21swapper/320:35:133
219019940,4cyclictest32672-21apt-get19:30:133
219019940,4cyclictest25941-21basename21:30:123
219019940,4cyclictest0-21swapper/323:15:133
219019940,4cyclictest0-21swapper/322:57:313
219019940,4cyclictest0-21swapper/322:45:123
219019940,4cyclictest0-21swapper/321:55:143
219019940,4cyclictest0-21swapper/321:05:143
219019940,4cyclictest0-21swapper/320:45:023
219019940,4cyclictest0-21swapper/320:40:223
219019940,4cyclictest0-21swapper/320:00:143
219019940,4cyclictest0-21swapper/319:25:223
219019940,4cyclictest0-21swapper/300:30:373
219019940,4cyclictest0-21swapper/300:21:453
219019940,4cyclictest0-21swapper/300:03:363
219019940,3cyclictest8755-21basename19:45:153
219019940,3cyclictest6008-21df00:35:133
219019940,3cyclictest4398-21perl21:35:183
219019940,3cyclictest4281-21sh22:07:343
219019940,3cyclictest3854-21ssh00:17:373
219019940,3cyclictest3503-21sh23:45:073
219019940,3cyclictest32332-21sh23:26:233
219019940,3cyclictest28250-21df19:20:133
219019940,3cyclictest27926-21ssh22:35:203
219019940,3cyclictest25313-21sh00:28:413
219019940,3cyclictest24936-21ls19:15:013
219019940,3cyclictest20711-21/usr/sbin/munin00:10:193
219019940,3cyclictest1612-21sh22:22:233
219019940,3cyclictest1217-21chrt23:43:573
219019940,3cyclictest11048-21perl19:50:143
219019940,1cyclictest7839-21/usr/sbin/munin20:50:143
219019940,1cyclictest15957-21/usr/sbin/munin21:25:233
219019940,0cyclictest0-21swapper/323:38:223
218969944,0cyclictest0-21swapper/223:47:032
218969944,0cyclictest0-21swapper/222:52:292
218969944,0cyclictest0-21swapper/221:41:552
218969944,0cyclictest0-21swapper/220:21:442
218969944,0cyclictest0-21swapper/219:16:152
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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