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2022-08-14 - 20:13

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 Aug 14, 2022 12:43:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
264592461398,50sleep00-21swapper/007:06:350
264662459394,52sleep10-21swapper/107:06:401
126822770,2chrt12681-21df_inode07:54:561
124532490,2sleep00-21swapper/010:45:040
2692099258,13cyclictest34850irq/91-enp1s0-r10:14:591
2692099221,7cyclictest6637-21/usr/sbin/munin07:40:031
26920992114,5cyclictest615-21seq07:24:381
192922210,3sleep119294-21aten2_r4power_c12:29:571
26920992011,7cyclictest20528-21cat08:14:591
26920992011,7cyclictest19642-21snmpd12:27:561
26920992011,7cyclictest19642-21snmpd11:46:461
26920992011,7cyclictest19642-21snmpd10:19:411
2691999202,14cyclictest26968-21apt-get07:09:530
26919992012,6cyclictest20597-21cron11:09:380
26919992011,7cyclictest19642-21snmpd12:20:320
26919992011,7cyclictest19642-21snmpd09:21:030
26919992011,7cyclictest19642-21snmpd08:54:230
2692099199,7cyclictest0-21swapper/112:10:071
2692099199,3cyclictest8317-21diskmemload10:08:521
2692099198,7cyclictest15718-21kworker/u4:209:48:031
2692099196,11cyclictest4504-21awk08:59:381
2692099194,10cyclictest6606-21apt-get09:04:531
2692099193,12cyclictest30473-21apt-get11:34:571
2692099191,8cyclictest798-21munin-run10:14:391
2692099191,8cyclictest13077-21strings09:20:071
26920991912,5cyclictest2169-21vmstat08:50:061
26920991911,6cyclictest21311-21cat11:10:021
26920991911,6cyclictest19642-21snmpd11:55:251
26920991911,6cyclictest19642-21snmpd11:40:311
26920991911,6cyclictest19642-21snmpd11:01:001
26920991911,6cyclictest19642-21snmpd10:38:291
26920991911,6cyclictest19642-21snmpd10:02:371
26920991911,6cyclictest19642-21snmpd09:35:211
26920991911,6cyclictest19642-21snmpd08:45:561
26920991911,6cyclictest19642-21snmpd08:33:051
26920991911,6cyclictest19642-21snmpd07:26:001
26920991911,6cyclictest19642-21snmpd07:16:211
26920991911,6cyclictest19642-21snmpd07:10:241
2692099191,14cyclictest29522-21apt-get08:39:521
26920991910,7cyclictest19642-21snmpd11:53:281
26920991910,7cyclictest19642-21snmpd10:50:561
26920991910,7cyclictest19642-21snmpd09:53:401
26920991910,7cyclictest19642-21snmpd08:34:591
26920991910,3cyclictest19642-21snmpd07:38:581
2691999193,11cyclictest24613-21apt-get11:19:540
2691999192,12cyclictest8317-21diskmemload10:04:590
2691999192,12cyclictest18023-21apt-get09:34:560
26919991911,6cyclictest19642-21snmpd12:19:380
26919991911,6cyclictest19642-21snmpd08:45:320
26919991911,6cyclictest19642-21snmpd08:40:110
26919991911,6cyclictest16856-21memory08:05:050
26919991911,6cyclictest16707-21sed10:59:380
26919991911,5cyclictest19096-21cat08:10:040
26919991910,7cyclictest784-21cron10:14:390
26919991910,7cyclictest19642-21snmpd09:01:180
26919991910,7cyclictest19642-21snmpd08:21:530
26919991910,7cyclictest19642-21snmpd07:21:300
2692099189,7cyclictest19642-21snmpd08:06:551
2692099188,7cyclictest11495-21cut10:40:051
2692099187,9cyclictest0-21swapper/108:26:581
2692099187,8cyclictest26554-1kworker/u5:111:24:421
2692099183,9cyclictest14917-21apt-get10:54:521
2692099183,9cyclictest12433-21apt-get10:45:031
2692099183,6cyclictest14227-21apt-get09:24:561
2692099183,10cyclictest8507-21apt-get09:09:531
2692099181,7cyclictest8317-21diskmemload09:30:241
2692099181,7cyclictest19642-21snmpd08:11:561
2692099181,15cyclictest0-21swapper/111:19:551
26920991810,6cyclictest19642-21snmpd09:03:001
26920991810,6cyclictest19642-21snmpd08:21:591
26920991810,6cyclictest19642-21snmpd07:49:491
26920991810,6cyclictest15298-21systemctl12:19:381
2692099180,16cyclictest470-21dbus-daemon12:35:101
2692099180,14cyclictest11178-21/usr/sbin/munin09:15:071
2691999189,7cyclictest19642-21snmpd10:49:500
2691999189,7cyclictest19642-21snmpd10:43:260
2691999189,7cyclictest19642-21snmpd10:30:380
2691999189,7cyclictest17105-21mailstats09:30:110
2691999183,9cyclictest10458-21apt-get07:49:510
2691999182,6cyclictest0-21swapper/011:44:510
26919991813,3cyclictest9529-21mailstats07:45:060
26919991811,5cyclictest25634-21sed09:54:380
26919991811,5cyclictest24038-21cat08:24:550
26919991811,5cyclictest21245-21perl11:10:000
26919991811,5cyclictest19642-21snmpd11:40:370
26919991810,6cyclictest7819-21cstates11:59:590
26919991810,6cyclictest5733-21cat07:35:060
26919991810,6cyclictest3496-21ntp_states07:30:040
26919991810,6cyclictest32199-21basename11:39:390
26919991810,6cyclictest19642-21snmpd11:58:160
26919991810,6cyclictest19642-21snmpd11:33:190
26919991810,6cyclictest19642-21snmpd10:01:400
26919991810,6cyclictest19642-21snmpd09:05:150
26919991810,6cyclictest19642-21snmpd08:04:010
26919991810,6cyclictest19287-21apt12:29:560
26919991810,6cyclictest17628-21ntpq11:00:090
26919991810,6cyclictest13399-21date07:55:060
26919991810,6cyclictest1123-21diskstats07:24:590
26919991810,5cyclictest11634-21basename12:10:000
2692099178,6cyclictest9177-21kworker/u4:012:04:411
2692099177,4cyclictest34850irq/91-enp1s0-r11:05:031
2692099173,9cyclictest7573-21apt-get11:59:561
2692099173,9cyclictest6713-21apt-get10:29:591
2692099173,8cyclictest25789-21apt-get09:54:571
2692099173,10cyclictest2697-21apt-get07:29:531
2692099172,8cyclictest4802-21apt-get10:24:551
2692099172,12cyclictest15486-21apt-get12:19:541
2692099172,11cyclictest8564-21apt-get07:44:551
2692099171,7cyclictest8317-21diskmemload09:39:591
2692099171,7cyclictest188-21systemd-journal11:19:381
26920991710,3cyclictest0-21swapper/111:30:001
2691999179,6cyclictest21853-21ls12:35:060
2691999179,6cyclictest21016-21date08:15:060
2691999179,5cyclictest8619-21basename09:09:550
2691999179,5cyclictest22698-21basename11:14:560
2691999179,5cyclictest19642-21snmpd11:49:520
2691999178,7cyclictest19642-21snmpd09:25:000
2691999174,9cyclictest21993-21apt-get09:44:560
2691999173,10cyclictest6665-21apt-get07:39:530
2691999172,11cyclictest8317-21diskmemload10:19:520
26919991711,5cyclictest10071-21fschecks_time12:05:020
26919991711,4cyclictest19642-21snmpd12:25:440
26919991711,4cyclictest19642-21snmpd11:26:030
26919991710,5cyclictest8613-21apt-get10:35:010
26919991710,5cyclictest29040-21cat07:14:410
26919991710,5cyclictest28390-21ntpq08:35:140
26919991710,5cyclictest26013-21cat08:30:020
26919991710,5cyclictest20050-21hostname09:39:580
26919991710,5cyclictest10736-21entropy09:15:010
26919991710,5cyclictest1049-21awk10:14:590
26919991710,4cyclictest5731-21mailstats10:25:070
2692099163,7cyclictest14277-21apt-get07:59:531
2691999169,5cyclictest2971-21cat08:54:570
2691999168,6cyclictest26728-21systemctl09:55:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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