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2022-08-13 - 02:09

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 highest latencies:
System rack4slot6s.osadl.org (updated Fri Aug 12, 2022 12:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2722322560,2sleep027221-21wc09:25:000
674322420,2sleep06746-21cpu08:05:120
184521330,4chrt1313-21/usr/sbin/munin09:50:360
832521200,3chrt8324-21/usr/sbin/munin08:10:240
963621180,2sleep09637-21cat10:20:340
1846221180,4chrt18464-21sendmail_mailqu10:55:250
246612990,3sleep024657-21cat09:15:010
66722980,3sleep06670-21grep10:10:230
60042970,4sleep06006-21users08:00:300
44202940,3sleep04422-21timerandwakeup10:00:340
101512886,11sleep010157-21df_inode12:30:180
291532857,64sleep029157-21ntp_states07:25:230
50842810,4sleep05116-21latency12:10:220
2441027117,13sleep00-21swapper07:06:280
165642673,6sleep00-21swapper10:49:350
24888996129,22cyclictest2772-21/usr/sbin/munin09:55:210
2488899609,18cyclictest32290-21df11:50:120
2488899608,18cyclictest21946-21/usr/sbin/munin11:10:260
24888996034,17cyclictest30624-21/usr/sbin/munin07:30:300
2488899599,18cyclictest31066-21ls11:45:210
2488899599,17cyclictest5180-21/usr/sbin/munin10:05:190
2488899599,17cyclictest17196-21memory08:45:180
2488899599,16cyclictest31422-21/usr/sbin/munin07:35:280
2488899598,17cyclictest28626-21/usr/sbin/munin09:30:360
2488899597,20cyclictest18556-21ntpq08:50:210
24888995928,18cyclictest23323-21latency_hist09:10:030
24888995912,14cyclictest8866-21df12:25:160
24888995910,19cyclictest27172-21df_inode11:30:220
24888995910,15cyclictest7530-21/usr/sbin/munin12:20:320
2488899588,16cyclictest26093-21ntpq11:25:230
2488899588,15cyclictest11859-21/usr/sbin/munin08:25:140
24888995833,16cyclictest30124-21/usr/sbin/munin11:40:280
24888995831,18cyclictest0-21swapper10:35:130
24888995821,23cyclictest0-21swapper08:15:240
24888995819,14cyclictest31476-21ntpq09:40:230
24888995811,18cyclictest11672-21df_inode10:30:170
18032580,3sleep01805-21awk07:45:200
2488899579,15cyclictest13425-21ntp_states08:30:230
2488899578,17cyclictest27447-21awk07:20:000
2488899578,17cyclictest1072-21/usr/sbin/munin11:55:350
24888995733,16cyclictest4656-21/usr/sbin/munin07:55:290
24888995732,16cyclictest10594-21/usr/sbin/munin10:25:230
24888995730,16cyclictest3966-21runrttasks12:05:310
24888995711,18cyclictest7300-21sshd12:19:280
2488899569,16cyclictest19624-21df_inode08:55:120
2488899568,16cyclictest20875-21/usr/sbin/munin09:00:250
2488899568,16cyclictest14707-21/usr/sbin/munin10:40:270
24888995632,16cyclictest25654-21runrttasks07:11:010
24888995631,16cyclictest29940-21/usr/sbin/munin09:35:130
24888995618,12cyclictest84682chrt10:16:350
24888995610,15cyclictest3632-21date12:05:020
24888995610,14cyclictest10772-21memory08:20:200
2488899559,17cyclictest32478-21/usr/sbin/munin09:45:180
2488899559,16cyclictest282-21snmpd11:35:080
2488899559,16cyclictest217-21rs:main0
2488899559,16cyclictest15585-21munin-run08:40:010
2488899558,15cyclictest16755-21/usr/sbin/munin10:50:280
2488899557,16cyclictest11370-21/usr/sbin/munin12:35:230
24888995532,15cyclictest20941-21/usr/sbin/munin11:05:230
24888995531,14cyclictest20118-21runrttasks11:01:380
24888995530,16cyclictest16046-21/usr/sbin/munin08:40:260
24888995530,14cyclictest87-21jbd2/mmcblk0p1-11:20:260
2488899549,16cyclictest25955-21latency_hist09:20:020
2488899548,19cyclictest27396-21seq09:25:160
24888995429,16cyclictest32713-21runrttasks07:40:020
24888995410,17cyclictest282-21snmpd11:15:050
24888995328,15cyclictest2899-21/usr/sbin/munin07:50:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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