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2023-01-29 - 19:30

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 alll highest latencies:
System rack4slot7s.osadl.org (updated Sun Jan 29, 2023 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
59872471413,43sleep00-21swapper/007:07:400
58332432355,62sleep10-21swapper/107:05:591
174362810,1chrt17430-21ntp_states07:35:020
37702620,1chrt3771-21apt-get09:49:480
126202590,2sleep00-21swapper/007:24:340
29142280,3sleep0131rcuc/012:34:580
634499273,17cyclictest0-21swapper/112:04:501
61162270,2sleep10-21swapper/108:30:011
634499263,17cyclictest0-21swapper/110:44:501
634499263,16cyclictest0-21swapper/109:34:491
634499252,15cyclictest29034-21avahi-daemon07:09:521
6344992513,6cyclictest0-21swapper/108:04:491
634499244,13cyclictest20740-21diskmemload10:19:491
634499243,13cyclictest29034-21avahi-daemon11:34:521
319232240,3sleep031924-21unixbench_multi11:00:070
8492230,1sleep00-21swapper/011:04:590
634499239,6cyclictest0-21swapper/111:44:491
634499228,10cyclictest27144-21expr10:49:521
634499223,13cyclictest3468-21kworker/u4:209:49:491
634499223,13cyclictest17240-1kworker/u5:012:14:481
634499219,5cyclictest0-21swapper/111:04:511
634499217,9cyclictest22-21ksoftirqd/111:39:501
634499217,12cyclictest188-21systemd-journal09:57:271
6344992111,8cyclictest29931-21grep10:55:111
6344992110,5cyclictest31298-21snmpd09:41:391
634399211,5cyclictest0-21swapper/009:48:270
634399210,9cyclictest63932which11:19:570
634499203,7cyclictest0-21swapper/107:14:471
6344992012,6cyclictest31298-21snmpd10:07:331
6344992011,7cyclictest31298-21snmpd08:23:391
6344992011,7cyclictest22875-21cat07:49:531
6343992014,4cyclictest30226-21/usr/sbin/munin12:20:050
6343992011,7cyclictest13195-21cat07:24:590
634499198,9cyclictest0-21swapper/108:02:051
634499197,7cyclictest0-21swapper/109:14:481
634499196,7cyclictest0-21swapper/109:24:551
634499196,5cyclictest22-21ksoftirqd/112:09:471
634499193,10cyclictest29034-21avahi-daemon11:49:491
634499191,9cyclictest9487-21apt-get08:39:501
6344991914,3cyclictest22317-21grep10:35:031
6344991911,6cyclictest31298-21snmpd12:29:291
6344991911,6cyclictest31298-21snmpd11:33:391
6344991911,6cyclictest31298-21snmpd11:26:001
6344991911,6cyclictest31298-21snmpd08:29:241
634499191,14cyclictest22512-21chrt09:13:131
6344991910,7cyclictest31298-21snmpd12:22:411
6344991910,7cyclictest31298-21snmpd07:24:551
634399199,8cyclictest31298-21snmpd10:34:490
6343991911,6cyclictest31298-21snmpd11:33:480
6343991911,6cyclictest31298-21snmpd08:11:570
6343991911,6cyclictest31298-21snmpd08:08:540
6343991911,6cyclictest31298-21snmpd07:51:470
6343991911,6cyclictest31298-21snmpd07:39:380
6343991911,6cyclictest31298-21snmpd07:32:200
6343991911,6cyclictest30989-21cat09:34:550
6343991911,6cyclictest10424-21awk10:04:590
6343991910,7cyclictest31298-21snmpd11:39:090
6343991910,7cyclictest31298-21snmpd11:10:590
6343991910,7cyclictest21723-21ntpq09:10:000
634499189,7cyclictest31298-21snmpd07:33:321
634499189,7cyclictest25092-21cat09:19:531
634499184,8cyclictest0-21swapper/112:29:501
634499184,8cyclictest0-21swapper/107:34:511
634499183,7cyclictest0-21swapper/107:44:461
634499181,8cyclictest15170-21/usr/sbin/munin08:54:521
634499181,8cyclictest1478-21cron08:19:331
634499181,7cyclictest11150-21kworker/u4:110:30:041
634499181,5cyclictest496-21runrttasks10:59:541
6344991812,4cyclictest34850irq/91-enp1s0-r11:10:051
6344991811,5cyclictest31298-21snmpd09:31:021
6344991811,5cyclictest31298-21snmpd07:39:531
634499181,14cyclictest25977-21cron07:59:331
6344991810,6cyclictest3552-21awk12:35:061
6344991810,6cyclictest31298-21snmpd10:42:371
6344991810,6cyclictest18289-21mailstats10:25:061
634399189,7cyclictest6032-21cut08:30:010
634399189,7cyclictest31298-21snmpd10:28:190
634399189,7cyclictest27453-21ntpq09:25:060
634399189,7cyclictest25700-21seq07:56:400
634399189,7cyclictest16561-21seq08:55:540
6343991811,5cyclictest31298-21snmpd08:21:330
6343991811,5cyclictest25315-21cat09:19:550
6343991810,6cyclictest5673-21seq11:19:140
6343991810,6cyclictest31298-21snmpd12:30:110
6343991810,6cyclictest31298-21snmpd10:18:070
6343991810,6cyclictest31298-21snmpd08:27:570
6343991810,6cyclictest31298-21snmpd08:00:530
6343991810,6cyclictest31298-21snmpd07:17:580
6343991810,6cyclictest28469-21seq12:16:170
6343991810,6cyclictest25496-21cat10:44:570
6343991810,6cyclictest20432-21seq09:06:200
634499179,6cyclictest31298-21snmpd08:50:401
634499178,7cyclictest31298-21snmpd10:02:361
634499178,7cyclictest21267-21awk11:59:521
634499177,8cyclictest13795-21diskstats10:14:531
634499174,7cyclictest0-21swapper/107:19:471
634499173,6cyclictest0-21swapper/108:34:491
6344991711,4cyclictest31298-21snmpd08:45:431
6344991710,5cyclictest17913-21grep09:00:001
634499170,7cyclictest11537-21/usr/sbin/munin10:09:511
634399179,6cyclictest7522-21seq08:34:420
634399179,6cyclictest6513-21open_inodes09:55:030
634399179,6cyclictest32533-21seq12:28:480
634399179,6cyclictest188-21systemd-journal09:42:240
634399179,6cyclictest18732-21seq09:03:330
634399179,6cyclictest17092-21seq11:48:410
634399178,7cyclictest31298-21snmpd11:44:060
634399178,7cyclictest31298-21snmpd10:30:280
6343991711,4cyclictest31298-21snmpd10:41:280
634399171,13cyclictest32153-21apt-get08:14:370
634399171,12cyclictest6399-21apt-get07:09:520
634399171,12cyclictest20454-21apt-get07:44:470
6343991710,5cyclictest31298-21snmpd11:25:300
6343991710,5cyclictest31298-21snmpd10:21:550
6343991710,5cyclictest31298-21snmpd10:01:120
6343991710,5cyclictest31298-21snmpd08:41:250
634499168,6cyclictest7760-21grep11:24:331
634499168,6cyclictest19794-21/usr/sbin/munin09:05:001
6344991611,3cyclictest31298-21snmpd11:54:431
634499161,11cyclictest31135-21seq08:10:031
6344991610,3cyclictest44722sleep111:14:571
634399169,5cyclictest23329-21if_enp1s009:14:540
634399168,6cyclictest30262-21sshd10:57:030
634399168,6cyclictest28990-21cut09:29:560
634399167,6cyclictest11812-21cstates10:09:510
6343991611,3cyclictest31298-21snmpd12:10:070
6343991611,3cyclictest31298-21snmpd11:54:580
6343991611,3cyclictest31298-21snmpd10:50:290
6343991611,3cyclictest31298-21snmpd08:53:490
634399161,13cyclictest21941-21grep12:00:000
634399161,11cyclictest22924-21apt-get12:04:370
6343991610,4cyclictest31298-21snmpd11:52:520
634499159,4cyclictest2721-21proc_pri09:45:011
634399157,6cyclictest11704-21df08:44:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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