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2024-10-12 - 18:24

OSADL QA Farm on Real-time of Mainline Linux

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

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.

Note that this system runs a non-RT kernel.
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rackbslot7s.osadl.org (updated Sat Oct 12, 2024 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12414218176,1798sleep07684-21kworker/0:112:07:160
7734275010,722sleep27740-21/usr/sbin/munin10:10:242
22928258111,554sleep022940-21/usr/sbin/munin07:35:190
19976253922,505sleep320022-21ntpq07:25:253
13028252058,443sleep313164-21unixbench_multi08:45:453
5159249254,395sleep35179-21cut11:45:233
5159249254,395sleep35179-21cut11:45:233
20235236117,325sleep020313-21/usr/sbin/munin10:50:280
1482823608,337sleep314947-21latency_hist10:35:003
7963234272,218sleep38106-21tail10:10:293
13094228214,252sleep213154-21/usr/sbin/munin12:10:172
25003224147,175sleep325149-21grep07:40:313
25003224147,175sleep325149-21grep07:40:313
20201223262,58sleep30-21swapper/310:50:273
17628222843,130sleep30-21swapper/309:00:433
17924222313,194sleep317946-21fschecks_count12:25:163
7093221320,131sleep37117-21munin-plugin-st08:29:583
10514219013,41sleep010623-21perl10:20:190
1102321886,146sleep3370-21snmpd12:04:163
27145218751,77sleep30-21swapper/307:50:003
16726218736,75sleep316744-21fschecks_count10:40:173
30314218458,68sleep30-21swapper/308:00:013
17754217549,68sleep317530-21sendmail-msp07:20:083
17754217549,68sleep317530-21sendmail-msp07:20:083
3101217228,72sleep30-21swapper/311:40:103
15487217118,50sleep215505-21fschecks_count08:55:172
15487217118,50sleep215505-21fschecks_count08:55:172
16856216845,78sleep316937-21latency_hist09:00:023
12607216435,61sleep30-21swapper/310:25:313
23309216117,20sleep10-21swapper/107:35:281
14055216020,128sleep314114-21if_eth008:50:213
12437216022,29sleep20-21swapper/208:45:312
28391215836,112sleep3370-21snmpd07:51:463
24501215729,79sleep324574-21fschecks_time11:05:173
22498215710,120sleep322580-21find09:15:373
20935214732,57sleep320986-21cpuspeed12:35:143
2977214427,71sleep30-21swapper/308:15:203
2977214427,71sleep30-21swapper/308:15:203
8940214331,72sleep39016-21grep10:15:173
30937214330,76sleep30-21swapper/311:25:163
30937214330,76sleep30-21swapper/311:25:163
16058214233,70sleep316184-21wc12:19:593
26776214015,107sleep226294-21apt-get09:30:102
22663214016,71sleep30-21swapper/307:35:103
16406214019,71sleep30-21swapper/310:40:013
14709213732,62sleep314771-21processes07:10:273
13273213713,24sleep00-21swapper/010:30:000
27558213061,49sleep30-21swapper/311:15:143
25105213011,102sleep225120-21fschecks_count09:25:172
922212921,85sleep10-21swapper/108:10:011
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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