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2026-09-01 - 02:39
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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 rack0slot2.osadl.org (updated Tue Sep 01, 2026 00:43:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205952121030,1sleep72059522-21kthreadcore23:44:557
144104126857,7sleep40-21swapper/419:05:514
144131425746,8sleep50-21swapper/519:09:375
143204125319,29sleep70-21swapper/719:04:417
1441639995247,4cyclictest1861797-21latency_hist22:24:387
1441635994341,2cyclictest1862183-21kworker/u16:1+flush-8:022:34:386
1441635994341,2cyclictest1862183-21kworker/u16:1+flush-8:022:34:386
1441635994038,2cyclictest1862183-21kworker/u16:1+flush-8:022:59:396
1441627993835,2cyclictest1650539-21kworker/u16:0+events_unbound21:14:544
1441627993735,2cyclictest2033114-21kworker/u16:5+events_unbound23:35:364
1441627993735,2cyclictest1862183-21kworker/u16:1+events_unbound23:07:004
1441627993735,2cyclictest1650539-21kworker/u16:0+events_unbound21:54:204
1441627993735,2cyclictest1650539-21kworker/u16:0+events_unbound21:54:204
1441627993634,2cyclictest1862183-21kworker/u16:1+events_unbound22:56:004
1441627993634,2cyclictest1568612-21kworker/u16:4+events_unbound21:27:574
1441627993533,2cyclictest2033114-21kworker/u16:5+events_unbound00:25:034
1441627993533,2cyclictest1862183-21kworker/u16:1+events_unbound22:31:244
1441627993533,2cyclictest1862183-21kworker/u16:1+events_unbound22:31:244
1441627993533,2cyclictest1739741-21kworker/u16:2+events_unbound22:25:404
1441627993533,2cyclictest1650539-21kworker/u16:0+events_unbound21:42:134
1441627993533,2cyclictest1650539-21kworker/u16:0+events_unbound21:11:404
1441627993432,2cyclictest2008569-21kworker/u16:4+events_unbound00:22:114
1441627993432,2cyclictest1947487-21kworker/u16:0+events_unbound23:22:134
19442342330,1chrt1944236-21missed_timers22:55:037
1441627993331,2cyclictest1800853-21kworker/u16:4+events_unbound22:43:024
1441627993331,2cyclictest1800853-21kworker/u16:4+events_unbound22:18:194
1441627993331,2cyclictest1800852-21kworker/u16:3+events_unbound22:08:134
1441627993331,2cyclictest1650539-21kworker/u16:0+events_unbound22:03:414
21589662320,1chrt2158967-21cstates00:29:517
1441627993230,2cyclictest2008569-21kworker/u16:4+events_unbound23:58:574
1441627993230,2cyclictest1973253-21kworker/u16:2+events_unbound00:06:234
1441627993230,2cyclictest1650539-21kworker/u16:0+events_unbound22:12:054
144128523221,8sleep60-21swapper/619:09:146
1441639993130,0cyclictest0-21swapper/700:06:047
1441635993129,2cyclictest1431764-21kworker/u16:0+flush-8:019:25:106
1441627993129,2cyclictest1973253-21kworker/u16:2+events_unbound23:32:034
1441627993129,2cyclictest1973253-21kworker/u16:2+events_unbound23:26:394
1441627993129,2cyclictest1800853-21kworker/u16:4+events_unbound22:22:444
1441627993028,2cyclictest1650539-21kworker/u16:0+events_unbound21:47:124
1441627993028,2cyclictest1650539-21kworker/u16:0+events_unbound20:59:374
1441627993028,2cyclictest1524210-21kworker/u16:0+events_unbound20:29:414
1441627993028,2cyclictest1431764-21kworker/u16:0+events_unbound19:28:054
1441635992927,2cyclictest2008569-21kworker/u16:4+flush-8:000:29:566
1441635992925,3cyclictest2033114-21kworker/u16:5+events_unbound23:34:536
1441627992927,2cyclictest2146064-21kworker/u16:2+events_unbound00:37:354
1441627992927,2cyclictest2008569-21kworker/u16:4+events_unbound00:31:354
1441627992927,2cyclictest1959800-21kworker/u16:3+events_unbound23:16:544
1441627992927,2cyclictest1862183-21kworker/u16:1+events_unbound23:03:514
1441627992927,2cyclictest1800853-21kworker/u16:4+events_unbound22:52:194
1441627992927,2cyclictest1800853-21kworker/u16:4+events_unbound22:38:074
1441627992927,2cyclictest1524210-21kworker/u16:0+events_unbound20:09:374
21802442280,1chrt2180242-21ssh00:35:207
1441627992826,2cyclictest2008569-21kworker/u16:4+events_unbound00:16:544
1441627992826,2cyclictest1739741-21kworker/u16:2+events_unbound21:38:324
1441627992825,2cyclictest1687620-21kworker/u16:5+flush-8:021:19:594
144163999270,26cyclictest1739740-21cat21:34:397
1441627992725,2cyclictest585456-21kworker/u16:3+events_unbound19:59:064
1441627992725,2cyclictest2033114-21kworker/u16:5+flush-8:023:50:094
1441627992725,2cyclictest1723310-21kworker/u16:1+events_unbound21:34:074
1441627992725,2cyclictest1650539-21kworker/u16:0+events_unbound21:58:074
1441627992725,2cyclictest1568612-21kworker/u16:4+events_unbound21:09:374
1441627992725,2cyclictest1431764-21kworker/u16:0+events_unbound19:21:054
1441639992621,4cyclictest1996396-21latency_hist23:19:387
1441630992625,1cyclictest1568612-21kworker/u16:4+flush-8:021:34:395
1441630992623,3cyclictest2103344-21kworker/u16:0+flush-8:000:01:135
1441627992624,2cyclictest1973253-21kworker/u16:2+events_unbound23:40:434
1441627992624,2cyclictest1610606-21kworker/u16:2+events_unbound20:38:464
1441627992624,2cyclictest1568612-21kworker/u16:4+events_unbound20:54:054
1441627992624,2cyclictest1494214-21kworker/u16:2+events_unbound19:45:174
1441627992523,2cyclictest2103344-21kworker/u16:0+events_unbound00:11:144
1441627992523,2cyclictest2008569-21kworker/u16:4+events_unbound23:46:274
1441627992523,2cyclictest2008569-21kworker/u16:4+events_unbound00:01:384
1441627992523,2cyclictest1947487-21kworker/u16:0+events_unbound23:13:104
1441627992523,2cyclictest1591376-21kworker/u16:1+flush-8:020:25:334
1441627992523,2cyclictest1591376-21kworker/u16:1+flush-8:020:25:334
1441627992523,2cyclictest1591376-21kworker/u16:1+events_unbound20:41:174
1441627992523,2cyclictest1552295-21kworker/u16:2+events_unbound20:17:224
1441627992523,2cyclictest1472502-21kworker/u16:1+events_unbound20:01:214
1441627992523,2cyclictest1472502-21kworker/u16:1+events_unbound19:37:094
1441639992422,1cyclictest0-21swapper/721:52:297
1441639992422,1cyclictest0-21swapper/721:52:297
1441639992418,5cyclictest1649346-21latency_hist20:54:397
1441627992422,2cyclictest585456-21kworker/u16:3+events_unbound19:52:214
1441627992422,2cyclictest585456-21kworker/u16:3+events_unbound19:14:254
1441627992422,2cyclictest1800853-21kworker/u16:4+events_unbound22:46:434
1441627992422,2cyclictest1568612-21kworker/u16:4+events_unbound21:02:004
144163999230,21cyclictest1776193-21latency_hist21:49:387
1441627992321,2cyclictest1568612-21kworker/u16:4+events_unbound20:21:564
1441627992321,2cyclictest1472502-21kworker/u16:1+events_unbound19:41:014
1441627992321,2cyclictest1472502-21kworker/u16:1+events_unbound19:41:014
1441627992321,2cyclictest1451191-21kworker/u16:2+events_unbound19:16:144
1441635992219,2cyclictest1568612-21kworker/u16:4+events_unbound20:39:536
1441639992115,5cyclictest1513282-21latency_hist19:44:397
1441639992115,5cyclictest1513282-21latency_hist19:44:397
144163099211,13cyclictest0-21swapper/519:59:555
1441627992119,2cyclictest1568612-21kworker/u16:4+events_unbound20:49:214
1441627992119,2cyclictest1524210-21kworker/u16:0+events_unbound20:13:534
1441627992119,2cyclictest1472502-21kworker/u16:1+events_unbound19:31:214
1441635991917,2cyclictest1723310-21kworker/u16:1+flush-8:021:40:096
18656562180,0sleep71865658-21tr22:24:577
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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