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2022-08-13 - 03:05

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #9, slot #8

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 TI AM3354 @800 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of shadow in rack #9, slot #8
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack9slot8s.osadl.org (updated Sat Aug 13, 2022 00:44:45)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
820501950,0irq/46-4a10000024512-21kworker/0:619:09:270
3185828916,0sleep031864-21ssh23:47:040
82050840,0irq/46-4a10000031998-21/usr/sbin/munin19:25:540
82150820,0irq/47-4a10000031026-21rm21:11:480
82050820,0irq/46-4a10000011856-21timerwakeupswit23:01:510
87862810,0chrt8151-21kworker/u2:100:09:470
82150810,0irq/47-4a10000017291-21ssh00:29:310
52852817,0sleep05286-21ntp_states22:46:270
271862817,0sleep027213-21ssh23:36:300
82150800,0irq/47-4a100000611-21sshd21:16:450
82150800,0irq/47-4a1000004782-21rm00:00:500
82150800,0irq/47-4a1000004686-21rm21:26:590
82150800,0irq/47-4a10000030428-21cron19:20:020
82050800,0irq/46-4a1000008103-21kworker/u2:1222:56:120
82050800,0irq/46-4a10000021829-21ssh23:25:220
18272800,0sleep0775-21kworker/u2:623:52:400
82150790,0irq/47-4a1000009683-21ssh20:00:280
82150790,0irq/47-4a1000007264-21ssh22:51:240
82150790,0irq/47-4a10000026622-21ssh22:20:510
82050790,0irq/46-4a10000020002-21ssh22:05:040
82050790,0irq/46-4a10000012590-21rm00:17:410
34782790,0sleep01124-21kworker/u2:621:24:590
82150780,0irq/47-4a10000019986-21ssh00:35:450
82150780,0irq/47-4a10000017210-21snmpd23:05:550
82150780,0irq/47-4a10000015572-21ssh23:10:560
82050780,0irq/46-4a1000004532-21ssh22:45:030
82050780,0irq/46-4a10000029640-21rm23:41:500
82050780,0irq/46-4a1000002662-21seq23:55:370
82050780,0irq/46-4a10000022866-21ntp_kernel_err22:11:270
82050780,0irq/46-4a10000022248-21sed22:10:090
82050780,0irq/46-4a10000021813-21apt-get23:26:040
304412780,0chrt29896-21kworker/u2:022:30:280
115182780,0chrt11488-21kworker/u2:121:43:230
82150770,0irq/47-4a10000018996-21runrttasks00:32:450
82050770,0irq/46-4a1000008401-21ssh21:36:110
82050770,0irq/46-4a1000007128-21rm21:32:440
82050770,0irq/46-4a10000032113-21rm22:34:070
82050770,0irq/46-4a10000024660-21df22:15:560
82050770,0irq/46-4a1000002288-21munin-run22:40:070
82050770,0irq/46-4a10000015473-21rm21:53:080
82050770,0irq/46-4a10000014360-21timerwakeupswit00:21:390
233062770,0chrt20437-21kworker/u2:620:46:450
82150760,0irq/47-4a1000005995-21kworker/u2:623:16:410
82150760,0irq/47-4a1000001876-21kworker/u2:900:12:320
82050760,0irq/46-4a1000005309-21cpu19:45:200
82050760,0irq/46-4a1000002750-21/usr/sbin/munin19:35:400
82050760,0irq/46-4a10000024495-21ls23:31:200
82050760,0irq/46-4a10000019658-21ssh20:35:240
82050760,0irq/46-4a10000013821-21rm21:49:240
82150750,0irq/47-4a10000028591-21awk19:15:030
82150750,0irq/47-4a10000025941-21kworker/u2:1021:00:170
82150750,0irq/47-4a10000017210-21snmpd21:09:560
82150750,0irq/47-4a10000013840-21/usr/sbin/munin20:15:210
82150750,0irq/47-4a1000001078-21ssh19:30:290
82050750,0irq/46-4a1000003866-21/usr/sbin/munin19:40:130
82050750,0irq/46-4a10000025153-21idleruntime-cro20:55:020
82050750,0irq/46-4a10000017060-21unixbench_singl21:57:030
193432750,0chrt19129-21kworker/u2:420:34:220
90992740,0chrt7702-1kworker/u3:019:57:300
82150740,0irq/47-4a10000015300-21/usr/sbin/munin20:20:440
82050740,0irq/46-4a10000025154-21apt-get20:56:120
82050730,0irq/46-4a10000021018-21apt-get20:40:140
167372730,0chrt11905-21kworker/u2:120:25:160
133112720,0chrt11910-21kworker/u2:320:11:530
82150710,0irq/47-4a1000001908-21kworker/u2:420:05:400
313872710,0chrt28287-21kworker/u2:619:21:140
82150680,0irq/47-4a1000008004-21idleruntime-cro19:55:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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