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2024-07-25 - 05:48

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 highest latencies:
System rackfslot4s.osadl.org (updated Thu Jul 25, 2024 00:44:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1491221110,2chrt14913-21mailstats22:07:100
1781321100,2sleep017814-21aten2.4_rfpower21:15:350
559321080,3chrt5592-21ssh22:48:410
2091521070,3chrt20916-21sleep20:16:460
2515721060,2chrt25158-21sleep22:26:010
3052721050,2chrt30529-21aten2.4_rfpower22:35:540
1740621050,2chrt17407-21aten2.4_rfpower23:10:330
1206221040,3chrt12063-21sh20:00:300
1630121030,2chrt16300-21ssh21:12:130
3082621000,2chrt30827-21sleep19:33:490
305602920,2sleep030558-21switchtime21:37:240
66722830,3chrt6652-21ntpq21:52:520
173842830,2sleep017387-21wc00:10:030
154822810,2sleep015485-21cut23:06:070
54162770,2sleep05419-21irqrtprio20:50:430
106122740,1sleep010614-21wc22:57:140
147722660,2sleep014770-21switchtime00:02:170
221492650,2sleep022154-21wc21:22:200
44992630,2sleep04500-21sh21:49:350
237002600,2sleep023703-21cut21:25:500
143072595,8sleep014322-21sshd20:05:210
228292543,43sleep022831-21ntpq22:21:270
206762533,41sleep0281-21in:imuxsock00:20:040
117812523,40sleep011770-21ssh23:57:060
10602522,6sleep01056-21ssh23:37:560
173232510,2sleep017324-21ld22:11:340
15082500,3chrt1505-21/usr/sbin/munin22:41:410
18482904918,23cyclictest0-21swapper22:04:460
73332484,35sleep07339-21hddtemp_smartct19:51:290
212612482,38sleep021109-21ssh23:16:460
18482904817,23cyclictest0-21swapper21:42:430
241912473,36sleep024180-21ssh23:21:260
18482904718,21cyclictest0-21swapper22:50:090
34952460,2chrt3493-21/usr/sbin/munin23:42:060
323722464,34sleep032374-21diskstats20:40:320
18482904619,20cyclictest0-21swapper00:26:440
18482904614,24cyclictest0-21swapper00:31:330
17732460,2chrt1772-21grep19:40:350
1699624611,20sleep017005-21ntpq19:05:410
18482904516,22cyclictest0-21swapper23:49:390
18482904514,24cyclictest0-21swapper00:39:360
21422440,3chrt2143-21sh20:45:180
1848290444,11cyclictest26807-21memory23:26:080
18482904417,19cyclictest0-21swapper23:54:010
18482904415,22cyclictest0-21swapper21:33:530
1848290436,18cyclictest22724-21uname20:20:430
1848290435,11cyclictest22267-21ntpq00:22:070
1848290424,11cyclictest29633-21/usr/sbin/munin23:31:430
18482904218,16cyclictest12263-21/usr/sbin/munin21:06:020
1848290416,9cyclictest24883-21ntpq19:21:160
1848290414,19cyclictest31749-21hddtemp_smartct19:35:350
18482904119,14cyclictest0-21swapper00:12:360
18482904115,19cyclictest29476-21ssh22:34:000
18482904114,9cyclictest27400-21ntp_states19:26:130
18482904114,21cyclictest0-21swapper20:36:330
18482904111,24cyclictest12877-21ntpq23:01:230
1848290406,28cyclictest27279-21diskstats20:30:300
1848290405,9cyclictest4214-21df_inode19:45:290
1848290404,19cyclictest8299-21chrt20:56:060
1848290403,18cyclictest8330-21hddtemp_smartct21:56:000
18482904018,15cyclictest0-21swapper19:10:240
18482904015,19cyclictest22303-21ntp_states19:16:160
1848290397,17cyclictest11577-21munin-run20:00:030
1848290394,8cyclictest17270-21hddtemp_smartct20:10:370
18482903914,18cyclictest19239-21diskstats22:15:450
18482903817,14cyclictest0-21swapper21:00:120
18482903711,10cyclictest24640-21sleep20:25:230
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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