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2022-07-05 - 12:33

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #0, slot #2

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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x86 Intel Core i9-9900K @3600 MHz, Linux 5.10.0-rc2-rt4 (Profile)

Latency plot of shadow in rack #0, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack0slot2s.osadl.org (updated Tue Dec 22, 2020 00:46:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
272798690,37rtkit-daemon0-21swapper/719:06:2013
3453070993131,0cyclictest3534461-21libvirtd20:55:0813
345306499300,30cyclictest0-21swapper/519:40:0811
345304499280,28cyclictest0-21swapper/021:10:080
345306499270,27cyclictest0-21swapper/521:00:0711
3453056992727,0cyclictest0-21swapper/322:55:089
3453056992727,0cyclictest0-21swapper/321:10:059
3453070992626,0cyclictest0-21swapper/719:35:0813
3453094992525,0cyclictest3750197-21libvirtd00:10:075
345309499244,20cyclictest0-21swapper/1320:39:075
345309499244,20cyclictest0-21swapper/1320:39:065
3453094992323,0cyclictest3638409-21libvirtd22:30:085
345305699220,22cyclictest0-21swapper/321:05:249
345305699220,22cyclictest0-21swapper/320:30:599
345305699220,0cyclictest0-21swapper/322:25:269
345305699220,0cyclictest0-21swapper/321:39:399
345305699220,0cyclictest0-21swapper/319:56:199
3453094992115,3cyclictest3617843-21kworker/13:000:00:475
3453094992015,2cyclictest3085445-21kworker/13:221:17:035
3453083992019,1cyclictest3489813-21libvirtd19:55:072
3453094991917,2cyclictest0-21swapper/1322:19:525
3453094991916,3cyclictest3593580-21kworker/13:021:52:455
3453094991913,3cyclictest3617843-21kworker/13:023:56:305
3453075991910,6cyclictest3515940-21libvirt-mem20:30:1014
345305999190,0cyclictest0-21swapper/422:21:2710
345305999190,0cyclictest0-21swapper/400:39:4610
345305699196,13cyclictest0-21swapper/319:33:169
3453051991918,1cyclictest3523311-21libvirtd20:40:088
3453051991918,1cyclictest3523311-21libvirtd20:40:078
3453094991813,3cyclictest3617843-21kworker/13:023:16:435
3453094991812,3cyclictest3509272-21cat20:20:125
3453094991812,3cyclictest0-21swapper/1300:38:165
345309499180,18cyclictest3617843-21kworker/13:023:44:065
3453068991818,0cyclictest3672910-21libvirtd23:00:0912
3453068991818,0cyclictest3672910-21libvirtd23:00:0812
3453059991812,3cyclictest0-21swapper/419:12:5010
345305999180,18cyclictest0-21swapper/423:11:0910
345305999180,16cyclictest0-21swapper/421:30:5310
345305999180,15cyclictest0-21swapper/421:15:4110
345305999180,0cyclictest0-21swapper/423:43:1410
345305999180,0cyclictest0-21swapper/423:09:0010
345305999180,0cyclictest0-21swapper/423:09:0010
345305699185,13cyclictest0-21swapper/321:51:159
345305699185,13cyclictest0-21swapper/300:33:129
345305699184,14cyclictest0-21swapper/322:37:249
345305699181,0cyclictest0-21swapper/320:50:069
345304499180,18cyclictest0-21swapper/023:35:560
345310299170,14cyclictest0-21swapper/1500:18:427
345309799170,14cyclictest0-21swapper/1423:59:126
345309799170,14cyclictest0-21swapper/1400:32:596
3453094991715,2cyclictest3617843-21kworker/13:000:27:265
3453094991711,6cyclictest91-21ksoftirqd/1322:38:465
3453094991711,3cyclictest91-21ksoftirqd/1300:15:515
345309499170,17cyclictest0-21swapper/1323:21:045
345309499170,17cyclictest0-21swapper/1323:01:175
345309499170,17cyclictest0-21swapper/1323:01:175
345309499170,0cyclictest91-21ksoftirqd/1321:46:085
345309499170,0cyclictest0-21swapper/1323:53:055
345309499170,0cyclictest0-21swapper/1322:25:095
345309499170,0cyclictest0-21swapper/1321:35:075
345308999170,14cyclictest0-21swapper/1220:05:294
345308399170,14cyclictest0-21swapper/1020:00:502
345307599178,9cyclictest0-21swapper/822:20:0714
3453075991715,1cyclictest3770618-21ethtool00:35:0614
3453075991714,2cyclictest1201-21snmpd00:02:2714
345307599170,14cyclictest0-21swapper/822:27:2714
345307599170,14cyclictest0-21swapper/819:31:3414
345307099170,14cyclictest0-21swapper/722:23:4013
345306899170,14cyclictest0-21swapper/600:34:3212
3453064991717,0cyclictest0-21swapper/520:00:0911
345306499170,14cyclictest0-21swapper/522:36:4811
3453059991712,3cyclictest0-21swapper/421:05:4610
3453059991712,3cyclictest0-21swapper/420:41:5110
3453059991712,3cyclictest0-21swapper/420:41:5110
345305999170,17cyclictest0-21swapper/422:56:4710
345305999170,17cyclictest0-21swapper/422:42:5010
345305999170,15cyclictest0-21swapper/423:33:0910
345305999170,15cyclictest0-21swapper/421:25:2510
345305999170,15cyclictest0-21swapper/420:24:0310
345305699174,13cyclictest0-21swapper/323:24:449
345305699174,13cyclictest0-21swapper/319:44:199
3453056991717,0cyclictest0-21swapper/321:15:089
345305199170,14cyclictest0-21swapper/200:29:598
3453044991716,1cyclictest1201-21snmpd21:20:040
3453044991716,1cyclictest1201-21snmpd20:52:270
3453044991716,1cyclictest1201-21snmpd20:40:310
3453044991716,1cyclictest1201-21snmpd20:40:300
3453044991716,1cyclictest1201-21snmpd20:26:180
345304499170,14cyclictest0-21swapper/023:44:410
345304499170,14cyclictest0-21swapper/021:03:400
3453102991616,0cyclictest1201-21snmpd19:35:147
3453102991614,2cyclictest3591745-21cat21:50:067
3453094991614,2cyclictest3085445-21kworker/13:221:12:565
3453094991614,2cyclictest3085445-21kworker/13:220:40:145
3453094991614,2cyclictest3085445-21kworker/13:220:40:145
3453094991614,2cyclictest0-21swapper/1323:32:475
3453094991613,0cyclictest3527257-21strings20:45:115
3453094991613,0cyclictest0-21swapper/1300:30:475
3453094991611,3cyclictest3655405-21kernelversion22:45:085
3453094991611,3cyclictest3617843-21kworker/13:023:10:015
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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