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2022-07-06 - 05:36

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #4, slot #6

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.MX535 @1000 MHz, Linux 4.19.142-rt63+ (Profile)

Latency plot of shadow in rack #4, slot #6
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -h400 -i400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 100, Linux 4.9.20-rt16, x86_64 highest latencies:
System rack4slot6s.osadl.org (updated Wed Jul 06, 2022 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1438922640,3sleep014391-21latency_hist19:55:000
1162022070,3sleep011617-21grep21:50:020
1171221510,2sleep011715-21grep23:55:200
946321270,3chrt9461-21users23:45:280
544321220,4chrt5441-21grep23:30:250
250321220,4chrt2501-21df_inode23:20:120
1431221180,4sleep014310-21ntp_states00:05:210
2747921130,2sleep027478-21idleruntime20:45:130
1077021030,4sleep010772-21sshd23:50:380
441921020,4sleep04476-21/usr/sbin/munin21:20:260
2099621010,4sleep021052-21users00:30:300
42062970,4sleep03727-21/usr/sbin/munin23:25:290
314702970,3sleep031525-21ntpq21:00:200
198712920,3sleep019918-21/usr/sbin/munin20:15:220
65842910,3sleep06285-21/usr/sbin/munin23:35:260
193132917,10sleep019348-21wc22:20:010
234152905,9sleep023483-21sed20:30:020
68322890,4sleep06836-21ntp_states21:30:230
117142856,8sleep011741-21df21:50:120
19912775,60sleep01992-21sshd23:17:380
161427519,31sleep01615-21munin-node19:05:100
220942700,3sleep022097-21proc_pri00:35:260
54832650,2sleep05486-21latency_hist19:20:020
280999608,18cyclictest7876-21ntp_states23:40:210
2809996022,12cyclictest277-21runrttasks20:12:400
2809996019,13cyclictest19915-1kworker/0:0H19:45:020
2809996012,16cyclictest1-21systemd22:57:370
280999599,17cyclictest8069-21/usr/sbin/munin19:30:150
280999599,15cyclictest15832-21ntpq22:05:210
280999598,15cyclictest2915-21/usr/sbin/munin21:15:200
2809995933,17cyclictest19935-21/usr/sbin/munin22:20:280
2809995911,17cyclictest29736-21/usr/sbin/munin23:00:270
280999589,16cyclictest2912-21/usr/sbin/munin19:10:120
280999589,14cyclictest24998-21/usr/sbin/munin20:35:180
280999588,14cyclictest22179-21latency_hist20:25:010
2809995810,15cyclictest27434-21ntp_states22:50:220
280999579,16cyclictest341-21ntpq21:05:200
280999578,17cyclictest9348-21/usr/sbin/munin19:35:280
280999578,16cyclictest5262-21/usr/sbin/munin21:25:150
280999578,15cyclictest23281-21/usr/sbin/munin22:35:140
280999576,17cyclictest14276-21/usr/sbin/munin22:00:190
2809995732,15cyclictest13110-21irqstats21:55:160
280999569,18cyclictest21880-21idleruntime-cro22:30:000
280999568,16cyclictest29002-21/usr/sbin/munin20:50:250
280999568,16cyclictest17902-21/usr/sbin/munin00:20:250
280999568,15cyclictest24589-21/usr/sbin/munin22:40:270
280999568,15cyclictest17089-21/usr/sbin/munin20:05:280
280999568,15cyclictest15798-21/usr/sbin/munin20:00:260
280999567,16cyclictest30142-21memory20:55:170
2809995632,16cyclictest19266-21runrttasks00:25:130
2809995610,19cyclictest25997-21if_eth022:45:140
2809995610,15cyclictest12824-21/usr/sbin/munin00:00:160
280999559,19cyclictest12101-21/usr/sbin/munin19:45:240
280999559,15cyclictest23159-21idleruntime-cro22:35:010
280999558,17cyclictest23529-21egrep20:30:100
280999557,14cyclictest16585-21/usr/sbin/munin00:15:140
280999556,15cyclictest15306-21/usr/sbin/munin00:10:270
2809995532,15cyclictest5717-21/usr/sbin/munin19:20:190
2809995531,16cyclictest31620-21/usr/sbin/munin23:05:310
2809995530,16cyclictest8008-21runrttasks21:35:180
2809995511,14cyclictest17124-21ntpq22:10:210
280999549,15cyclictest26304-21memory20:40:170
280999548,18cyclictest7006-21wc19:25:190
280999547,15cyclictest9718-21chrt21:40:280
2809995431,15cyclictest1607-21/usr/sbin/munin21:10:290
2809995430,15cyclictest15157-21runrttasks19:55:580
2809995425,19cyclictest32379-21runrttasks23:10:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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