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2024-11-22 - 08:40

OSADL QA Farm on Real-time of Mainline Linux

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Default latency plot of shadow in rack #f, slot #4

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 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 376 highest latencies:
System rackfslot4s.osadl.org (updated Fri Nov 22, 2024 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
318721270,2chrt3188-21/usr/sbin/munin23:20:120
1762121230,2chrt17622-21sleep23:46:140
2595221210,3chrt24706-21apt-get20:01:570
1388321180,2chrt13882-21/usr/sbin/munin21:41:560
2869121160,2sleep028700-21ld23:07:120
212221160,2sleep02123-21cat23:17:180
3039421140,3chrt30395-21/usr/sbin/munin00:10:440
2786121100,2chrt27853-21ntpq22:07:050
205121090,2chrt2052-21sleep20:17:440
402921050,2chrt4030-21sh19:18:330
836821040,3chrt8369-21ssh23:29:350
1433321040,2chrt14334-21sleep19:39:110
1492721020,2sleep014928-21grep23:41:260
295452970,3sleep029543-21df22:10:390
305192910,2sleep030521-21ssh21:13:260
29542640,1sleep02956-21ntp_kernel_pll_21:22:120
124202560,1sleep012421-21sh22:37:340
247082554,8sleep024712-21munin-run20:00:020
31817905218,25cyclictest0-21swapper00:08:030
31817905121,22cyclictest0-21swapper21:29:380
31817904919,21cyclictest0-21swapper00:19:140
31817904918,23cyclictest0-21swapper21:53:500
233302490,2sleep023331-21apt-key21:00:300
192032490,1sleep019204-21aten2.4_rfpower23:50:320
31817904820,21cyclictest0-21swapper00:29:430
31817904819,22cyclictest0-21swapper22:57:560
31817904818,21cyclictest0-21swapper22:21:550
31817904717,23cyclictest0-21swapper23:34:360
31817904717,22cyclictest0-21swapper21:48:000
31817904717,21cyclictest0-21swapper22:18:530
194572470,3chrt19455-21/usr/sbin/munin22:51:010
31817904616,23cyclictest0-21swapper23:39:400
303352468,25sleep030346-21ld19:05:410
239492462,5sleep00-21swapper23:58:500
3181790455,12cyclictest9715-21memory00:31:160
3181790454,13cyclictest10700-21ntpq19:31:000
31817904517,21cyclictest0-21swapper20:05:240
31817904516,21cyclictest0-21swapper22:43:190
31817904516,21cyclictest0-21swapper22:28:450
31817904515,23cyclictest0-21swapper22:03:200
3181790446,10cyclictest6458-21ntp_states20:26:080
31817904420,17cyclictest0-21swapper20:21:040
31817904416,19cyclictest0-21swapper00:38:280
31817904413,23cyclictest0-21swapper21:33:440
3181790437,28cyclictest26661-21irqstats21:05:440
3181790436,19cyclictest16551-21ntpq20:46:040
3181790435,19cyclictest17716-21hddtemp_smartct19:45:380
3181790425,10cyclictest2984-21sendmail-msp00:20:570
3181790425,10cyclictest10812-21perl20:35:330
31817904218,16cyclictest0-21swapper23:03:150
31817904216,19cyclictest8753-21ssh22:31:080
31817904215,9cyclictest24485-21apt-get00:00:430
31817904212,23cyclictest0-21swapper21:37:340
3181790414,9cyclictest32657-21ntp_states21:17:070
3181790414,27cyclictest4967-21df19:20:560
3181790414,19cyclictest19193-21ntp_states20:51:160
3181790414,18cyclictest13330-21df20:40:530
31817904120,14cyclictest0-21swapper21:59:120
31817904114,19cyclictest0-21swapper22:47:410
31817904113,9cyclictest0-21swapper20:33:420
31817904113,21cyclictest32040-21aten2.4_rfpower19:10:230
3181790405,17cyclictest20705-21telnet20:55:230
3181790404,18cyclictest32184-21sshd20:13:380
31817904015,18cyclictest30452-21runrttasks23:10:420
31817903913,19cyclictest14803-21sh19:40:320
3181790374,14cyclictest7099-21apt-get19:25:190
31817903715,14cyclictest20697-21memory19:50:480
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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