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2025-05-02 - 12:59
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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 50 highest latencies:
System rack5slot3.osadl.org (updated Fri May 02, 2025 00:50:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1951329287,2sleep00-21swapper/019:05:170
1940028555,25sleep70-21swapper/719:05:167
2127828147,30sleep60-21swapper/619:09:326
2109827944,30sleep20-21swapper/219:06:552
2122227843,30sleep40-21swapper/419:08:424
2117427540,30sleep30-21swapper/319:08:003
2100927540,30sleep50-21swapper/519:05:385
2113427339,29sleep10-21swapper/119:07:261
266202610,0sleep30-21swapper/323:32:133
42792490,0sleep20-21swapper/223:05:142
42792490,0sleep20-21swapper/223:05:142
280092460,0sleep40-21swapper/423:33:104
131922460,0sleep20-21swapper/221:16:572
107052440,0sleep20-21swapper/200:13:122
169912430,0sleep00-21swapper/000:00:130
21746993333,0cyclictest0-21swapper/022:02:350
21746993332,0cyclictest0-21swapper/022:18:140
21749993131,0cyclictest0-21swapper/323:39:333
21747993110,0cyclictest0-21swapper/122:45:011
21753992423,0cyclictest0-21swapper/721:05:137
21748992220,2cyclictest1706-21sendmail-mta22:51:092
21747992222,0cyclictest0-21swapper/122:06:361
21746992121,0cyclictest0-21swapper/022:33:540
1647922110,1sleep40-21swapper/421:35:014
21751992020,0cyclictest0-21swapper/521:05:135
21751992016,2cyclictest14757-21nscd23:01:425
21749992018,2cyclictest1559-21snmpd23:24:423
21749992017,3cyclictest0-21swapper/323:52:113
21748992018,2cyclictest13645-21kworker/2:121:06:112
21746992019,1cyclictest0-21swapper/023:15:590
21746992013,3cyclictest0-21swapper/021:05:000
21746991919,0cyclictest0-21swapper/022:59:540
21750991818,0cyclictest69450irq/124-eth000:08:254
21750991812,4cyclictest21744-21cyclictest00:16:434
21748991818,0cyclictest321ktimersoftd/221:35:152
21748991815,3cyclictest734-21gmain00:32:452
21747991812,6cyclictest1559-21snmpd21:19:281
21747991810,5cyclictest0-21swapper/123:15:031
21746991817,0cyclictest0-21swapper/021:05:130
21746991810,0cyclictest0-21swapper/022:45:190
21752991717,0cyclictest641ktimersoftd/600:36:046
21752991710,3cyclictest0-21swapper/623:23:596
21752991710,0cyclictest0-21swapper/622:36:476
21751991717,0cyclictest0-21swapper/523:52:165
21750991717,0cyclictest69450irq/124-eth022:56:414
21750991710,3cyclictest0-21swapper/421:57:044
21750991710,3cyclictest0-21swapper/421:57:044
21750991710,0cyclictest0-21swapper/421:23:114
21748991710,3cyclictest0-21swapper/223:56:242
21748991710,3cyclictest0-21swapper/221:34:492
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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