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2022-08-08 - 23:51

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #5, 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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ARM Freescale i.MX6UL @528 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50500000 -m -n -a0 -t1 -p99 -i396 -h400 -q
Total number of samples: 50.5 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of all highest latencies:
System rack5slot7s.osadl.org (updated Mon Aug 08, 2022 12:45:13)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
14057224082178,175sleep00-21swapper07:05:200
153049916920,120cyclictest453-21apt-get08:55:290
153049916517,25cyclictest17221-21apt-get10:35:340
153049916516,124cyclictest3985-21diskstats09:16:150
153049916419,118cyclictest13296-21ntp_states10:11:120
153049916343,23cyclictest26792-21mailstats11:31:170
153049916329,35cyclictest0-21swapper10:30:580
153049916319,29cyclictest30321-21apt-get11:55:250
153049916315,23cyclictest2885-21apt-get09:10:250
153049916313,125cyclictest20444-21mailstats07:36:220
153049916228,21cyclictest3346-21head12:26:180
153049916220,24cyclictest6191-21users09:26:250
153049916218,121cyclictest5053-21ntp_states09:21:160
153049916217,117cyclictest14486-21apt-get10:20:510
153049916117,120cyclictest25721-21df08:10:400
153049916117,118cyclictest2160-21memory12:20:590
153049916116,119cyclictest15281-21apt-get07:12:080
153049916015,102cyclictest302-21users08:51:170
153049916010,123cyclictest18043-21/usr/sbin/munin10:41:130
153049915917,99cyclictest1185-21df12:15:400
153049915916,25cyclictest24587-21apt11:20:010
153049915842,21cyclictest19689-21switchtime07:31:210
153049915822,107cyclictest31945-21apt-get12:05:370
153049915821,28cyclictest27104-21apt-get11:35:360
153049915818,24cyclictest6430-21df09:30:420
153049915817,29cyclictest3669-21sshd12:30:540
153049915816,23cyclictest2195-21df_inode09:05:430
153049915816,112cyclictest28725-21apt-get11:45:250
153049915814,26cyclictest1276-21/usr/sbin/munin09:01:000
153049915813,29cyclictest28694-21sort08:26:150
153049915716,24cyclictest24936-21diskstats08:05:490
153049915714,118cyclictest23312-21/usr/sbin/munin07:55:430
153049915711,124cyclictest31516-21grep12:01:110
153049915632,102cyclictest20011-21grep10:51:140
153049915620,108cyclictest23058-21users07:51:230
153049915616,116cyclictest24202-21irqstats08:00:540
153049915614,117cyclictest22896-21apt-get11:10:360
153049915575,35cyclictest21595-21/usr/sbin/munin07:46:010
153049915519,22cyclictest16754-21apt-get07:15:440
153049915517,26cyclictest12186-21/usr/sbin/munin10:05:480
153049915514,117cyclictest14486-21apt10:20:030
153049915513,116cyclictest8978-21ls09:45:580
153049915512,42cyclictest26132-21grep11:26:190
153049915512,110cyclictest7126-21apt-get09:35:200
153049915511,121cyclictest4536-21latency12:36:000
153049915422,27cyclictest18956-21diskstats10:45:450
153049915417,111cyclictest11229-21apt-get10:00:340
153049915415,25cyclictest21881-21head11:01:200
153049915412,117cyclictest17733-21sshd07:20:540
153049915333,19cyclictest21542-21cat07:45:050
153049915321,106cyclictest15866-21memory10:26:090
153049915315,110cyclictest31313-21/usr/sbin/munin08:45:560
153049915315,109cyclictest30622-21/usr/sbin/munin08:40:390
153049915313,25cyclictest29634-21diskstats11:50:480
153049915312,27cyclictest23183-21snmpd07:25:480
153049915312,114cyclictest26572-21df_inode08:15:390
153049915217,109cyclictest22172-21df11:05:430
153049915211,26cyclictest25287-21wc11:21:190
153049915115,22cyclictest8063-21diskstats09:40:460
153049915078,50cyclictest11055-21munin-run10:00:020
153049915032,97cyclictest9620-21cstates09:50:400
153049915019,23cyclictest20554-21diskstats10:55:450
153049915015,26cyclictest29068-21irqstats08:30:530
153049914931,22cyclictest27540-21memory08:20:530
153049914915,25cyclictest32743-21apt-get12:10:330
153049914817,107cyclictest27927-21apt-get11:40:260
153049914815,36cyclictest30399-21munin-run08:40:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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