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2024-09-15 - 06:12
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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 Sep 15, 2024 00:44:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163982189174,11sleep00-21swapper/019:06:100
164392186168,13sleep10-21swapper/119:06:431
163892183167,11sleep30-21swapper/319:06:053
163682177161,12sleep20-21swapper/219:05:482
44762480,0sleep20-21swapper/222:42:022
147052410,0sleep10-21swapper/122:47:101
1686999141,9cyclictest18152-21munin-run21:45:010
27144290,0sleep1211ktimersoftd/100:30:301
26036290,0sleep00-21swapper/023:25:160
168699993,3cyclictest29887-21awk20:40:000
168699981,3cyclictest22489-21awk19:20:000
168699973,4cyclictest7362-21apt-get19:55:010
168819955,0cyclictest32070-21kworker/3:122:32:153
168819955,0cyclictest32070-21kworker/3:121:25:063
168819955,0cyclictest32070-21kworker/3:121:13:543
168819955,0cyclictest10544-21kworker/3:200:13:013
168819955,0cyclictest10544-21kworker/3:200:01:493
168819955,0cyclictest0-21swapper/321:49:493
168819952,3cyclictest0-21swapper/322:12:283
168819951,3cyclictest0-21swapper/321:55:133
168819950,5cyclictest0-21swapper/323:53:293
168819950,5cyclictest0-21swapper/323:05:553
168819950,5cyclictest0-21swapper/321:19:423
168819950,4cyclictest0-21swapper/319:35:123
168819950,3cyclictest0-21swapper/323:11:043
168819950,0cyclictest0-21swapper/323:48:513
168769955,0cyclictest0-21swapper/221:10:122
168769955,0cyclictest0-21swapper/219:55:052
168769951,3cyclictest0-21swapper/221:50:122
168769950,5cyclictest0-21swapper/223:35:122
168769950,5cyclictest0-21swapper/222:55:152
168769950,5cyclictest0-21swapper/221:45:122
168769950,5cyclictest0-21swapper/219:25:122
168719952,1cyclictest0-21swapper/122:05:111
168719950,5cyclictest0-21swapper/122:59:171
168719950,5cyclictest0-21swapper/121:52:131
168699955,0cyclictest0-21swapper/000:11:540
168699951,3cyclictest14781-21ssh22:30:500
168699950,5cyclictest15517-21ssh21:10:430
168699950,5cyclictest0-21swapper/000:06:310
168699950,4cyclictest0-21swapper/023:50:100
168699950,4cyclictest0-21swapper/022:50:120
168699950,4cyclictest0-21swapper/000:20:100
7017240,0sleep10-21swapper/122:27:241
25391240,1sleep00-21swapper/020:30:120
168819944,0cyclictest8955-21/usr/sbin/munin19:55:183
168819944,0cyclictest32070-21kworker/3:122:21:063
168819944,0cyclictest0-21swapper/323:35:363
168819944,0cyclictest0-21swapper/322:46:433
168819943,1cyclictest23893-21grep19:20:163
168819943,1cyclictest22116-21/usr/sbin/munin22:35:133
168819943,1cyclictest1535-21gltestperf21:20:163
168819941,3cyclictest32150-21sh00:33:413
168819941,3cyclictest17971-21sh22:16:313
168819941,3cyclictest15170-21cpuspeed_turbos00:25:133
168819941,3cyclictest11749-21ssh00:06:533
168819940,4cyclictest5008-21sh22:26:083
168819940,4cyclictest27415-21apt-get00:15:123
168819940,4cyclictest20569-21perl23:55:163
168819940,4cyclictest19677-21ssh22:50:093
168819940,4cyclictest17112-21perl22:00:133
168819940,4cyclictest0-21swapper/323:00:123
168819940,4cyclictest0-21swapper/322:55:453
168819940,4cyclictest0-21swapper/321:40:483
168819940,4cyclictest0-21swapper/321:30:133
168819940,4cyclictest0-21swapper/320:40:143
168819940,4cyclictest0-21swapper/320:10:113
168819940,4cyclictest0-21swapper/320:10:103
168819940,4cyclictest0-21swapper/300:35:123
168819940,4cyclictest0-21swapper/300:21:513
168819940,3cyclictest9863-21latency_hist21:05:013
168819940,3cyclictest7407-21sh23:15:383
168819940,3cyclictest630-21hddtemp_smartct22:40:153
168819940,3cyclictest3623-21latency_hist22:10:013
168819940,3cyclictest3200-21/usr/sbin/munin20:50:143
168819940,3cyclictest31619-21sh23:44:563
168819940,3cyclictest30131-21ntp_states21:50:183
168819940,3cyclictest28393-21perl19:30:133
168819940,3cyclictest2651-21chrt19:45:083
168819940,3cyclictest2147-21ssh23:30:033
168819940,3cyclictest20198-21cut19:15:013
168819940,3cyclictest12800-21basename20:05:113
168819940,3cyclictest10383-21cut20:00:103
168819940,3cyclictest0-21swapper/320:20:113
168819940,2cyclictest19919-21ssh23:22:143
168819940,2cyclictest19919-21ssh23:22:133
168819940,1cyclictest31501-21expr21:35:133
168819940,1cyclictest25143-21/usr/sbin/munin20:30:133
168819940,0cyclictest0-21swapper/323:27:013
168769944,0cyclictest0-21swapper/221:26:392
168769944,0cyclictest0-21swapper/200:30:242
168769944,0cyclictest0-21swapper/200:21:582
168769944,0cyclictest0-21swapper/200:02:462
168769942,2cyclictest5167-21kworker/2:120:18:572
168769941,1cyclictest0-21swapper/220:50:122
168769940,4cyclictest7661-21ssh23:15:482
168769940,4cyclictest13352-21ssh21:42:002
168769940,4cyclictest0-21swapper/223:54:202
168769940,4cyclictest0-21swapper/223:30:132
168769940,4cyclictest0-21swapper/223:27:192
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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