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2025-07-04 - 05:02

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #7, slot #2

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 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
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Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 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 rack7slot2s.osadl.org (updated Wed Jul 02, 2025 12:48:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
309039899335178,113cyclictest3153814-21df12:35:340
309039899335178,113cyclictest3153814-21df12:35:330
309039899313176,106cyclictest3112457-21kworker/u9:7+rpciod09:50:400
309039899313176,106cyclictest3112457-21kworker/u9:7+rpciod09:50:400
309039899308163,109cyclictest3124722-21gzip10:16:570
309039899308163,109cyclictest3124722-21gzip10:16:570
309039899307150,118cyclictest3093314-21ntp_kernel_err07:25:590
309039899307150,117cyclictest3125487-21irqstats10:20:470
309039899304178,112cyclictest3123371-21irqstats10:10:490
309039899299145,115cyclictest3152927-21sed12:31:060
309039899299145,115cyclictest3152927-21sed12:31:060
309039899298151,106cyclictest3115665-21sshd09:34:420
309039899298151,106cyclictest3115665-21sshd09:34:420
309039899298140,118cyclictest3134042-21ntp_states11:01:390
309039899298140,118cyclictest3134042-21ntp_states11:01:390
309039899297145,108cyclictest3128179-21kworker/u9:2+rpciod10:40:010
309039899297145,108cyclictest3128179-21kworker/u9:2+rpciod10:40:010
309039899295145,112cyclictest3135873-21rm11:10:340
309039899295145,112cyclictest3135873-21rm11:10:340
309039899295144,113cyclictest3147360-21ssh12:05:180
309039899295144,113cyclictest3147360-21ssh12:05:180
309039899295123,134cyclictest3127894-21rt-features10:31:580
309039899295123,134cyclictest3127894-21rt-features10:31:580
309039899294127,127cyclictest3097057-21kworker/u9:5+rpciod08:40:560
309039899294127,127cyclictest3097057-21kworker/u9:5+rpciod08:40:560
309039899292142,113cyclictest0-21swapper/007:56:120
309039899292142,111cyclictest3111896-21ntpq09:15:560
309039899292142,111cyclictest3111896-21ntpq09:15:560
309039899291170,109cyclictest3090397-21cyclictest12:11:020
309039899291170,109cyclictest3090397-21cyclictest12:11:020
309039899291161,91cyclictest3110418-21diskmemload09:55:360
309039899291161,91cyclictest3110418-21diskmemload09:55:360
309039899291131,123cyclictest3110067-21ntp_states09:06:310
309039899290145,108cyclictest3104829-21df08:35:340
309039899290145,108cyclictest3104829-21df08:35:330
309039899289120,129cyclictest3101441-21/usr/sbin/munin08:15:120
309039899289120,129cyclictest3101441-21/usr/sbin/munin08:15:120
309039899287163,88cyclictest3131136-21threads10:47:040
309039899287141,108cyclictest3135111-21collect211:06:430
309039899287141,108cyclictest3135111-21collect211:06:430
309039899287140,90cyclictest3118040-21df09:45:320
309039899286182,90cyclictest0-21swapper/010:56:200
309039899286101,122cyclictest3113162-21/usr/sbin/munin09:21:560
309039899286101,122cyclictest3113162-21/usr/sbin/munin09:21:550
309039899285131,112cyclictest3091212-21kworker/u10:11+rpciod07:35:080
309039899285130,95cyclictest3090361-21kworker/u10:3+rpciod07:20:000
309039899285130,95cyclictest3090361-21kworker/u10:3+rpciod07:20:000
309039899284153,92cyclictest3141148-21diskstats11:35:430
309039899283159,89cyclictest3140289-21ntpq11:31:170
309039899283159,89cyclictest3140289-21ntpq11:31:170
309039899283127,120cyclictest3104342-21/usr/sbin/munin08:31:520
309039899283123,114cyclictest3108714-21kworker/u9:8+rpciod09:00:530
309039899282159,89cyclictest3149471-21apt-get12:15:160
309039899282159,89cyclictest3149471-21apt-get12:15:160
309039899282139,93cyclictest171rcu_preempt11:55:450
309039899282139,93cyclictest171rcu_preempt11:55:440
309039899282138,108cyclictest3110933-21gcc09:11:260
309039899282138,108cyclictest3110933-21gcc09:11:260
309039899281139,93cyclictest3144929-21kworker/u9:2+rpciod12:01:380
309039899281139,93cyclictest3144929-21kworker/u9:2+rpciod12:01:380
309039899281127,119cyclictest3092670-21rt-features07:21:480
309039899281121,123cyclictest3096211-21users07:41:580
309039899281121,123cyclictest3096211-21users07:41:580
309039899280135,104cyclictest0-21swapper/010:50:410
309039899280132,107cyclictest0-21swapper/010:41:330
309039899280122,122cyclictest3106748-21ntp_states08:46:370
309039899280122,122cyclictest3106748-21ntp_states08:46:370
309039899279143,99cyclictest0-21swapper/010:05:300
309039899279143,99cyclictest0-21swapper/010:05:290
309039899279141,103cyclictest0-21swapper/011:16:310
309039899279122,102cyclictest3091212-21kworker/u10:11+rpciod08:50:340
309039899279122,102cyclictest3091212-21kworker/u10:11+rpciod08:50:340
309039899279106,138cyclictest3100200-21mailstats08:06:520
309039899279106,138cyclictest3100200-21mailstats08:06:520
309039899279106,120cyclictest3090361-21kworker/u10:3+rpciod07:10:060
309039899277152,90cyclictest3099157-21ntp_kernel_pll_08:01:030
309039899277135,109cyclictest3116404-21mailstats09:37:040
309039899277135,109cyclictest3116404-21mailstats09:37:040
309039899277132,93cyclictest3095191-21mailstats07:36:500
309039899277132,93cyclictest3095191-21mailstats07:36:500
309039899277109,133cyclictest3091189-21/usr/sbin/munin07:11:570
309039899276143,103cyclictest0-21swapper/012:28:010
309039899276143,103cyclictest0-21swapper/012:28:010
309039899275127,116cyclictest3102920-21munin-run08:25:010
309039899275126,100cyclictest3100885-21ntp_states08:11:310
309039899275126,100cyclictest3100885-21ntp_states08:11:300
309039899275122,96cyclictest3103291-21/usr/sbin/munin08:25:510
30903989927498,135cyclictest3121153-21ssh10:00:200
30903989927498,135cyclictest3121153-21ssh10:00:190
30903989927497,120cyclictest466-21munin-node07:47:010
30903989927497,120cyclictest466-21munin-node07:47:010
309039899274147,89cyclictest3150651-21diskstats12:20:430
309039899274147,89cyclictest3150651-21diskstats12:20:420
309039899273114,87cyclictest3143548-21sh11:47:030
309039899273114,87cyclictest3143548-21sh11:47:030
309039899273106,122cyclictest3117699-21sh09:44:040
30903989927185,136cyclictest3113885-21df_inode09:25:370
30903989927185,136cyclictest3113885-21df_inode09:25:360
309039899271131,91cyclictest3137989-21df11:20:330
309039899271131,107cyclictest3142486-21ntp_states11:41:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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