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2022-07-05 - 08:25

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 highest latencies:
System rack4slot6s.osadl.org (updated Tue Jul 05, 2022 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
678123130,3sleep06782-21mailstats00:35:260
1730922150,2sleep017307-21sendmail_mailqu23:10:260
2634421210,4chrt26342-21irqstats21:40:160
2766421120,3chrt27661-21grep19:40:020
270121090,4sleep02758-21/usr/sbin/munin00:20:190
660721000,3sleep06616-21cpu22:30:100
2124221000,3sleep021297-21netstat21:20:180
236532980,3sleep023699-21ps23:35:240
309792970,3sleep030980-21modprobe00:05:000
109222970,2sleep010923-21basename22:45:350
323262840,3sleep032325-21sort00:10:020
94872755,60sleep09491-21ntp_states22:40:220
228722730,2sleep022871-21wc21:25:280
225832733,5sleep00-21swapper19:20:100
224112720,3sleep022478-21ps23:30:310
1885127220,29sleep018879-21memory19:05:170
19888996226,14cyclictest14248-21latency_hist23:00:020
1988899609,16cyclictest28498-21/usr/sbin/munin23:55:280
1988899608,26cyclictest18594-21irqstats21:10:160
1988899608,18cyclictest14342-21/usr/sbin/munin23:00:150
1988899608,14cyclictest13288-21/usr/sbin/munin20:50:310
19888996012,20cyclictest15187-21sshd20:55:360
19888996011,17cyclictest20043-21df19:10:130
19888996011,16cyclictest23901-21ntp_states21:30:230
1988899599,17cyclictest20937-21sendmail-msp21:20:010
1988899598,19cyclictest1704-21/usr/sbin/munin20:05:140
1988899598,17cyclictest31347-21/usr/sbin/munin22:00:180
1988899598,16cyclictest124172sleep020:45:250
1988899597,38cyclictest4267-21/usr/sbin/munin20:15:280
19888995931,19cyclictest0-21swapper19:15:110
19888995917,14cyclictest458-21timerandwakeup00:10:270
1988899589,17cyclictest3789-21/usr/sbin/munin00:25:200
1988899589,17cyclictest17213-21df21:05:120
1988899589,16cyclictest5904-21sort22:25:290
1988899588,16cyclictest25939-21/usr/sbin/munin23:45:150
1988899587,18cyclictest24660-21/usr/sbin/munin23:40:280
19888995811,18cyclictest23864-21/usr/sbin/munin19:25:290
19888995810,16cyclictest20791-21/usr/sbin/munin23:25:150
1988899579,17cyclictest293-21sshd20:11:370
1988899579,16cyclictest6199-21sshd20:20:370
1988899579,15cyclictest11811-21df22:50:120
1988899578,16cyclictest9420-21/usr/sbin/munin20:35:230
19888995734,15cyclictest5149-21/usr/sbin/munin00:30:140
19888995733,16cyclictest8421-21/usr/sbin/munin22:35:280
19888995710,15cyclictest3910-21munin-run22:20:010
1988899569,17cyclictest27480-21/usr/sbin/munin21:45:150
1988899569,15cyclictest4048-21/usr/sbin/munin22:20:160
1988899568,17cyclictest30050-21/usr/sbin/munin21:55:250
1988899568,15cyclictest31570-21/usr/sbin/munin19:55:150
1988899568,15cyclictest10902-21cat20:40:170
1988899568,13cyclictest8145-21/usr/sbin/munin20:30:270
1988899567,16cyclictest27221-21/usr/sbin/munin23:50:290
19888995611,16cyclictest25258-21/usr/sbin/munin19:30:150
1988899559,16cyclictest1453-21/usr/sbin/munin22:10:240
1988899559,15cyclictest611-21mailstats22:05:250
1988899559,14cyclictest746-21/usr/sbin/munin20:00:230
1988899558,14cyclictest29500-21ls19:45:280
19888995532,15cyclictest19789-21/usr/sbin/munin23:20:200
19888995531,16cyclictest16025-21/usr/sbin/munin21:00:170
19888995531,15cyclictest30340-21/usr/sbin/munin19:50:100
19888995531,15cyclictest29272-21/usr/sbin/munin21:50:280
19888995530,18cyclictest0-21swapper23:15:360
19888995529,16cyclictest25329-21/usr/sbin/munin21:35:260
1988899547,15cyclictest28023-21ntp_states19:40:220
19888995430,15cyclictest1783-21runrttasks00:15:290
19888995410,16cyclictest6911-21df20:25:110
19888995410,16cyclictest15688-21df_inode23:05:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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