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2023-01-29 - 16:34

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 Sun Jan 29, 2023 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1632422660,3sleep016326-21cat07:05:150
42922580,3sleep0426-21grep08:10:010
1392922440,3sleep013927-21grep09:00:340
572421240,5chrt5722-21ntp_states10:35:240
807521190,3chrt8077-21kworker/u2:108:40:010
789221160,2sleep07894-21modprobe10:45:010
2079921160,3chrt20801-21latency_hist11:35:020
1744421090,5chrt17443-21sort09:15:210
28502980,2sleep02848-21grep10:25:200
202012980,2sleep020200-21irqstats07:20:180
299902956,11sleep029994-21df_inode12:10:160
298162955,12sleep029884-21latency_hist12:10:010
37742920,4sleep03776-21cron12:34:590
136582890,3sleep013711-21/usr/sbin/munin11:05:350
290662880,3sleep029109-21ntp_kernel_pll_10:00:230
83152734,59sleep08313-21ntp_states10:45:250
17358997233,16cyclictest14880-21/usr/sbin/munin09:05:240
17358996525,14cyclictest108-21systemd-journal10:24:240
17358996511,17cyclictest12093-21memory11:00:250
17358996419,12cyclictest16750-21seq09:12:150
17358996410,28cyclictest30085-21chrt07:59:080
1735899639,15cyclictest1430-21df_inode12:25:220
17358996331,23cyclictest18954-21/usr/sbin/munin11:25:390
17358996325,15cyclictest24245-21runrttasks11:46:440
17358996311,16cyclictest23757-21df_inode09:40:170
164242635,48sleep00-21swapper11:16:100
1735899627,14cyclictest276032sleep009:55:210
17358996226,26cyclictest18316-21runrttasks07:12:380
1735899618,16cyclictest23906-21/usr/sbin/munin07:35:380
17358996131,22cyclictest27968-21/usr/sbin/munin12:00:360
17358996131,22cyclictest21993-21runrttasks11:39:330
17358996112,15cyclictest9602-21ntp_states10:50:280
17358996111,17cyclictest21395-21ntp_states09:30:290
17358996110,16cyclictest3256-21memory08:20:230
1735899609,18cyclictest2762-21seq08:18:520
1735899609,16cyclictest1448-21seq08:13:410
17358996029,21cyclictest0-21swapper09:29:580
17358996020,12cyclictest28175-21grep07:50:280
17358996011,20cyclictest22680-21ntp_states09:35:270
268502593,8sleep00-21swapper11:57:070
265492590,2sleep026567-21fw_packets07:45:160
1735899599,18cyclictest23583-21chrt07:33:310
1735899599,17cyclictest27132-21seq09:52:490
1735899599,17cyclictest18830-21ntp_states09:20:270
1735899599,16cyclictest10733-21wc08:50:020
1735899599,15cyclictest14733-21/usr/sbin/munin11:10:230
1735899598,17cyclictest10797-21/usr/sbin/munin10:55:300
1735899597,21cyclictest22990-21runrttasks11:41:570
1735899597,18cyclictest1079-21chrt12:23:520
17358995926,23cyclictest5924-21runrttasks08:30:290
17358995911,13cyclictest8215-21/usr/sbin/munin08:40:350
17358995910,17cyclictest12255-21memory08:55:270
17358995910,15cyclictest25504-21ntp_states07:40:280
17358995910,14cyclictest30464-21/usr/sbin/munin10:05:290
1735899589,16cyclictest830-21users10:15:350
1735899589,16cyclictest25483-21seq11:51:240
1735899589,16cyclictest10863-21/usr/sbin/munin08:50:200
1735899589,15cyclictest21491-21/usr/sbin/munin07:25:240
1735899588,18cyclictest4963-21/usr/sbin/munin08:25:390
17358995832,17cyclictest4068-21runrttasks12:35:230
17358995829,20cyclictest19486-21runrttasks07:16:420
17358995815,13cyclictest269-21runrttasks08:01:070
17358995810,15cyclictest31464-21/usr/sbin/munin12:15:240
1735899579,16cyclictest279-21sshd10:14:280
1735899578,16cyclictest24979-21/usr/sbin/munin09:45:210
17358995710,17cyclictest4412-21ntp_states10:30:290
17358995611,16cyclictest17143-21entropy11:20:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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