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2022-07-06 - 17:57

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 792 highest latencies:
System rack4slot6s.osadl.org (updated Wed Jul 06, 2022 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1937122420,2sleep019369-21ls07:45:270
181821360,3sleep01820-21latency_hist08:45:020
2405221350,3sleep024050-21ls12:15:280
1273521190,4chrt12734-21/usr/sbin/munin07:20:220
9748991189,96cyclictest425-21df10:45:130
2454421160,3chrt24545-21sshd10:11:360
1552721150,2sleep015526-21wc07:30:280
9748991148,95cyclictest12304-21munin-run07:20:010
9748991139,88cyclictest23118-21users10:05:290
97489911210,88cyclictest11262-21ntp_states09:20:360
9748991118,90cyclictest31448-21ls10:40:010
9748991118,88cyclictest28254-21chrt12:32:250
9748991117,89cyclictest29107-21interrupts10:30:170
9748991117,89cyclictest26553-21/usr/sbin/munin10:20:170
9748991109,90cyclictest28003-21df_inode08:20:130
9748991109,88cyclictest7119-21df_inode09:05:130
9748991108,88cyclictest3838-21chrt08:50:530
9748991108,88cyclictest28758-21df_inode12:35:130
9748991108,87cyclictest13526-21ntp_states11:35:210
9748991108,86cyclictest277-21runrttasks12:14:130
9748991099,86cyclictest3517-21users10:55:290
9748991098,88cyclictest24688-21runrttasks08:05:370
9748991098,87cyclictest10560-21latency_hist11:25:010
9748991097,88cyclictest11904-21cat11:30:000
9748991097,87cyclictest18390-21/usr/sbin/munin11:55:250
9748991097,83cyclictest9013-21seq11:18:090
9748991096,90cyclictest10434-21/usr/sbin/munin07:10:290
97489910929,69cyclictest14869-21/usr/sbin/munin11:40:250
97489910910,85cyclictest6113-21users11:05:290
9748991089,85cyclictest15075-21ntpq09:35:210
9748991089,84cyclictest25145-21ntp_states12:20:210
9748991088,88cyclictest13850-21/usr/sbin/munin09:30:250
9748991088,87cyclictest12308-21proc_pri11:30:250
9748991088,86cyclictest21172-21/usr/sbin/munin12:05:170
9748991087,88cyclictest17273-21sed11:50:170
9748991087,84cyclictest17372-21/usr/sbin/munin09:45:100
556021080,3chrt5561-21sshd08:59:360
9748991079,84cyclictest19961-21ntpq12:00:210
9748991078,86cyclictest3069-21/usr/sbin/munin08:50:010
9748991077,89cyclictest21329-21/usr/sbin/munin10:00:170
9748991077,87cyclictest25604-21/usr/sbin/munin08:10:210
9748991077,85cyclictest17153-21seq09:44:170
9748991076,86cyclictest13390-21munin-run09:30:010
97489910730,67cyclictest6888-21/usr/sbin/munin11:10:140
97489910721,74cyclictest384-21ntpd09:15:210
9748991069,86cyclictest16681-21fgrep07:35:250
9748991068,86cyclictest5160-21seq11:03:050
9748991068,84cyclictest27073-21tr08:15:250
9748991067,86cyclictest26727-21users12:25:290
9748991066,89cyclictest18935-21ntpq09:50:210
97489910631,66cyclictest15956-21if_eth011:45:150
97489910610,84cyclictest22437-21chrt07:58:530
932621060,4chrt9327-21sshd09:13:360
9748991059,84cyclictest29506-21ntp_states08:25:200
9748991058,84cyclictest14945-21cat07:30:010
9748991057,85cyclictest32186-21sendmail_mailst08:35:250
9748991057,85cyclictest23948-21munin-run08:05:010
9748991057,84cyclictest18176-21users07:40:280
9748991048,83cyclictest1837-21memory10:50:170
9748991047,86cyclictest27746-21df_inode10:25:130
9748991047,85cyclictest30829-21pluginstate08:30:250
9748991046,83cyclictest21237-21seq07:54:330
97489910428,67cyclictest31699-21runrttasks10:40:160
9748991036,85cyclictest20085-21irqstats09:55:210
9748991026,86cyclictest5957-21memory09:00:170
97489910223,67cyclictest25883-21runrttasks10:17:000
974899958,73cyclictest9795-21latency_hist07:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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