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2023-09-30 - 09:18
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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: ondemand
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack8slot7.osadl.org (updated Sat Sep 30, 2023 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1004899220,21cyclictest161rcuc/021:23:060
10049992120,1cyclictest0-21swapper/123:09:461
1004899210,21cyclictest0-21swapper/023:56:150
1004899210,1cyclictest0-21swapper/023:07:360
10049991918,1cyclictest0-21swapper/120:00:151
10048991918,1cyclictest0-21swapper/023:03:360
10049991817,1cyclictest0-21swapper/123:28:151
10048991817,1cyclictest0-21swapper/000:20:550
10049991716,1cyclictest0-21swapper/121:31:161
10048991716,1cyclictest0-21swapper/023:42:450
1004899143,6cyclictest13-21ksoftirqd/023:19:040
10048991410,1cyclictest161rcuc/022:07:250
1004899140,7cyclictest18222-21x2gosqlitewrapp22:30:180
1004899140,10cyclictest28507-21x2gosqlitewrapp22:12:290
1004899132,6cyclictest13-21ksoftirqd/000:30:320
10048991312,1cyclictest0-21swapper/021:33:050
1004999129,2cyclictest7612-21x2gosqlitewrapp22:21:281
1004999129,2cyclictest7515-21x2golistsession20:56:091
1004999129,2cyclictest27138-21x2golistsession22:36:491
1004999125,2cyclictest141rcu_preempt21:21:551
1004999121,10cyclictest12600-21x2gosqlitewrapp20:10:191
1004999120,11cyclictest18753-21/usr/sbin/munin22:55:291
1004899129,2cyclictest161rcuc/019:18:470
1004899128,3cyclictest161rcuc/021:50:100
1004899128,3cyclictest161rcuc/021:44:360
1004899128,3cyclictest161rcuc/021:28:060
1004899128,3cyclictest161rcuc/021:18:220
1004899128,1cyclictest161rcuc/023:20:410
1004899128,1cyclictest161rcuc/021:59:320
1004899125,4cyclictest13-21ksoftirqd/000:36:210
1004899125,2cyclictest6694-21tr20:00:000
1004899124,5cyclictest14222-21diskmemload23:10:000
1004899123,6cyclictest0-21swapper/022:03:230
1004899122,6cyclictest13-21ksoftirqd/023:50:240
1004899121,6cyclictest26559-21x2gosqlitewrapp19:35:420
1004899121,6cyclictest12093-21x2gosqlitewrapp19:12:250
1004899121,2cyclictest9040-21x2gosqlitewrapp22:48:280
1004899121,10cyclictest161rcuc/020:10:580
1004899120,8cyclictest24865-21x2golistsession23:26:430
1004899120,7cyclictest13793-21ssh22:26:130
1004999119,1cyclictest0-21swapper/121:46:191
1004999117,2cyclictest8465-21x2gosqlitewrapp00:31:121
1004999117,2cyclictest4673-21x2gosqlitewrapp00:02:401
1004999117,2cyclictest16680-21x2golistsession23:45:481
1004999117,2cyclictest10465-21x2golistsession23:40:511
1004999112,2cyclictest3594-21x2gosqlitewrapp23:35:291
1004999112,2cyclictest17871-21x2gosqlitewrapp00:13:311
1004999111,9cyclictest30010-21ssh23:30:291
1004999111,5cyclictest16073-21x2golistsession22:02:301
1004999111,4cyclictest32511-21x2golistsession22:40:451
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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