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2023-06-04 - 22:09

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #7

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 Celeron N2930 @1833 MHz, Linux 5.10.47-rt46 (Profile)

Latency plot of shadow in rack #4, slot #7
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 --smi -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 highest latencies:
System rack4slot7s.osadl.org (updated Sun Jun 04, 2023 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123762487395,51sleep10-21swapper/107:09:091
123752456390,52sleep00-21swapper/007:09:080
2547621520,4sleep10-21swapper/111:55:061
1196921050,1chrt0-21swapper/109:55:051
199932740,1sleep10-21swapper/107:25:101
133372630,1chrt13338-21/usr/sbin/munin09:59:571
12614992815,7cyclictest26423-21diskmemload11:34:571
1261399273,18cyclictest26423-21diskmemload12:34:550
1261399233,7cyclictest0-21swapper/007:34:550
1261399233,6cyclictest0-21swapper/009:24:580
1261399231,6cyclictest0-21swapper/012:21:300
1261399231,5cyclictest0-21swapper/007:25:060
1261499221,15cyclictest26423-21diskmemload12:10:011
1261399225,12cyclictest26423-21diskmemload11:14:580
1261399224,12cyclictest26423-21diskmemload10:25:010
1261399223,13cyclictest26423-21diskmemload11:24:580
1261399215,11cyclictest0-21swapper/010:04:550
1261399214,10cyclictest0-21swapper/010:19:570
12613992111,7cyclictest2558-21seq08:05:060
81322200,2sleep10-21swapper/108:20:041
12614992011,7cyclictest22829-21snmpd11:30:341
12614992011,7cyclictest22829-21snmpd08:59:231
12614992011,7cyclictest22829-21snmpd07:18:051
1261399205,10cyclictest0-21swapper/009:04:560
1261399202,14cyclictest12619-21apt-get07:09:410
1261399202,13cyclictest13302-21apt-get09:59:560
1261399201,4cyclictest0-21swapper/010:52:470
12613992011,7cyclictest22829-21snmpd09:58:040
12613992011,7cyclictest22829-21snmpd09:23:540
12613992011,7cyclictest22829-21snmpd07:31:590
1261499197,3cyclictest15796-21uname10:05:031
1261499197,10cyclictest26669-21tr11:59:571
1261499193,5cyclictest22826-21apt-get10:25:001
12614991911,6cyclictest23903-21timerwakeupswit11:50:081
12614991911,6cyclictest22829-21snmpd12:26:361
12614991911,6cyclictest22829-21snmpd09:24:481
12614991911,6cyclictest22829-21snmpd08:42:261
12614991911,6cyclictest22829-21snmpd08:19:221
12614991910,7cyclictest22829-21snmpd11:18:311
12614991910,7cyclictest22829-21snmpd10:57:511
12614991910,7cyclictest22829-21snmpd08:28:521
12614991910,7cyclictest22829-21snmpd07:35:381
12614991910,7cyclictest22829-21snmpd07:30:441
12614991910,7cyclictest10132-21cut09:50:061
1261399198,7cyclictest0-21swapper/009:44:570
1261399198,3cyclictest141rcu_preempt09:00:010
1261399195,9cyclictest0-21swapper/009:39:580
1261399195,8cyclictest0-21swapper/007:49:520
1261399194,9cyclictest0-21swapper/008:14:530
1261399194,8cyclictest0-21swapper/010:59:560
1261399194,7cyclictest0-21swapper/007:54:550
1261399194,6cyclictest0-21swapper/008:44:590
1261399194,10cyclictest0-21swapper/011:49:540
1261399194,10cyclictest0-21swapper/009:34:540
1261399193,11cyclictest17069-21apt-get11:34:570
1261399192,12cyclictest28506-21apt-get10:39:410
12613991913,4cyclictest12498-21timerwakeupswit11:20:120
12613991912,5cyclictest19212-21cpuspeed_turbos08:50:000
12613991911,6cyclictest22829-21snmpd11:29:430
12613991911,6cyclictest22829-21snmpd09:09:480
1261399191,14cyclictest14531-21munin-node07:14:380
12613991910,7cyclictest22829-21snmpd10:48:390
1261499189,7cyclictest8284-21ntpq12:35:051
1261499189,7cyclictest22829-21snmpd10:35:361
1261499189,7cyclictest22829-21snmpd08:00:211
1261499189,7cyclictest17884-21ntpq08:45:141
1261499189,6cyclictest470-21dbus-daemon08:50:101
1261499188,7cyclictest28827-21df_inode12:04:591
12614991811,5cyclictest22829-21snmpd08:11:521
12614991810,6cyclictest22829-21snmpd10:42:361
12614991810,6cyclictest22829-21snmpd09:31:001
12614991810,6cyclictest22829-21snmpd08:34:431
12614991810,6cyclictest22829-21snmpd08:34:431
12614991810,6cyclictest22829-21snmpd07:49:391
1261399189,7cyclictest5644-21bc11:05:030
1261399189,7cyclictest19786-21ntpq11:40:090
1261399189,6cyclictest31277-21uname12:10:120
1261399185,8cyclictest0-21swapper/007:39:560
1261399185,7cyclictest26569-21apt-get07:44:530
1261399185,7cyclictest0-21swapper/010:14:560
1261399184,7cyclictest0-21swapper/008:19:570
1261399184,7cyclictest0-21swapper/008:00:000
1261399183,9cyclictest15181-21apt-get08:39:570
1261399183,8cyclictest0-21swapper/011:59:550
1261399182,12cyclictest3712-21apt-get12:24:560
1261399182,12cyclictest26625-21apt-get10:34:580
1261399182,12cyclictest20900-21apt-get11:45:060
12613991813,3cyclictest20919-21aten2_r4power_c08:54:570
12613991811,5cyclictest22829-21snmpd12:32:240
12613991811,5cyclictest14240-21switchtime08:35:080
12613991811,5cyclictest14240-21switchtime08:35:080
12613991810,6cyclictest22829-21snmpd12:07:060
12613991810,6cyclictest22829-21snmpd10:12:050
12613991810,6cyclictest22829-21snmpd09:53:040
1261499179,6cyclictest22829-21snmpd08:33:311
1261499179,6cyclictest22829-21snmpd08:04:391
1261499179,5cyclictest32057-21seq07:59:301
1261499178,7cyclictest24672-21apt-get07:39:571
1261499178,7cyclictest15018-21cat11:29:381
1261499178,7cyclictest12772-21seq11:21:231
1261499178,6cyclictest5661-21seq11:05:051
1261499177,8cyclictest5056-1kworker/u5:009:40:121
1261499175,6cyclictest24600-21date09:04:381
1261499173,8cyclictest20924-21apt-get10:19:561
1261499173,10cyclictest3747-21apt-get10:59:551
1261499172,9cyclictest26423-21diskmemload09:19:571
12614991712,3cyclictest7619-21aten2_r4power_e09:44:581
12614991711,4cyclictest22829-21snmpd11:47:231
12614991711,4cyclictest22829-21snmpd10:54:211
12614991711,4cyclictest22829-21snmpd10:45:151
1261499171,11cyclictest26423-21diskmemload09:10:021
12614991710,5cyclictest28812-21expr09:15:031
12614991710,5cyclictest25701-21cut10:30:111
12614991710,5cyclictest22829-21snmpd11:42:291
12614991710,5cyclictest22829-21snmpd11:09:491
1261399179,6cyclictest8642-21sort11:10:180
1261399179,6cyclictest22829-21snmpd09:32:150
1261399179,6cyclictest22829-21snmpd08:11:580
1261399174,9cyclictest12107-21ntpq08:30:070
1261399173,9cyclictest32305-21apt-get12:14:570
1261399172,11cyclictest9424-21apt-get08:25:020
1261399172,11cyclictest24681-21apt-get11:54:580
12613991712,3cyclictest17885-21grep07:20:060
12613991710,5cyclictest29098-21cat09:15:070
1261499168,6cyclictest6298-21seq12:30:141
1261499166,8cyclictest22829-21snmpd10:09:591
1261499164,8cyclictest19002-21apt-get10:14:561
1261499162,9cyclictest12681-21apt-get07:10:001
1261499162,10cyclictest0-21swapper/112:19:541
12614991611,3cyclictest22829-21snmpd12:17:121
12614991611,3cyclictest22829-21snmpd07:19:501
1261499160,8cyclictest26313-21chrt09:08:341
1261399161,12cyclictest2857-21switchtime10:55:140
1261399161,11cyclictest24720-21apt-get10:29:570
12614991510,3cyclictest22829-21snmpd07:45:391
1261499150,7cyclictest3766-21wget09:34:561
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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