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2023-10-05 - 04:05

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 
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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 100 highest latencies:
System rackbslot7s (updated Thu Oct 05, 2023 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20269280316,8013sleep114356-21kworker/1:022:39:411
1140225248,501sleep315945-21kworker/3:123:57:103
1140225248,501sleep315945-21kworker/3:123:57:103
22817247333,401sleep122892-21mailstats22:47:531
22817247333,401sleep122892-21mailstats22:47:531
210742320102,195sleep121220-21unixbench_multi20:57:481
12081230811,280sleep11-21systemd20:32:091
1294622888,268sleep0367-21snmpd00:00:220
31500224136,83sleep131549-21latency_hist23:17:111
1644222544,122sleep10-21swapper/119:57:371
3145122239,197sleep131522-21switchtime19:47:481
2890222312,149sleep13000-21timerandwakeup23:27:571
2890222312,149sleep13000-21timerandwakeup23:27:571
14289221143,115sleep10-21swapper/122:22:091
588222107,187sleep15944-21mailstats23:37:541
588222107,187sleep15944-21mailstats23:37:541
30184220218,167sleep330266-21grep21:27:453
9064218456,91sleep19195-21unixbench_singl22:02:481
9064218456,91sleep19195-21unixbench_singl22:02:481
1312721818,160sleep113171-21date00:02:091
1896921808,95sleep10-21swapper/122:37:111
20275217850,112sleep120349-21mailstats19:12:441
12746217861,106sleep112772-21cat22:17:091
6250217752,102sleep10-21swapper/120:12:351
7757216918,133sleep10-21swapper/120:17:391
7412216989,62sleep17473-21/usr/sbin/munin23:42:471
26368216811,39sleep10-21swapper/121:17:101
2921821665,29sleep10-21swapper/121:24:451
1094821595,28sleep10-21swapper/123:53:081
1094821595,28sleep10-21swapper/123:53:081
6792215837,66sleep117586-21cyclictest21:57:311
1419215627,119sleep1367-21snmpd21:39:461
28347215229,107sleep128413-21latency_hist23:07:101
16221215112,125sleep116335-21latency_hist00:12:101
30339215030,104sleep130466-21cat21:27:481
12556215093,42sleep10-21swapper/120:32:411
9652214811,124sleep19677-21awk20:22:401
16954214832,101sleep117015-21sendmail_mailqu00:12:471
21755214310,118sleep121799-21awk19:17:451
21755214310,118sleep121799-21awk19:17:451
28991214232,60sleep10-21swapper/119:42:111
22913214120,97sleep00-21swapper/000:32:360
19305214120,103sleep319362-21grep22:37:373
15099214147,60sleep115165-21cat22:22:461
9077214011,112sleep09151-21find23:47:510
9077214011,112sleep09151-21find23:47:510
1496321379,111sleep014155-21/usr/sbin/munin20:37:570
1496321379,111sleep014155-21/usr/sbin/munin20:37:570
17494213541,60sleep217506-21modprobe19:07:082
8311213116,101sleep38313-21acpi22:02:253
8311213116,101sleep38313-21acpi22:02:253
29950213012,27sleep130061-21sort19:42:561
29950213012,27sleep130061-21sort19:42:561
27289212916,18sleep10-21swapper/121:17:501
11376212910,98sleep00-21swapper/020:27:480
4369212651,63sleep14407-21latency_hist20:07:101
2211321269,80sleep10-21swapper/100:28:291
9154212213,22sleep10-21swapper/123:47:521
9154212213,22sleep10-21swapper/123:47:521
2170721220,10sleep20-21swapper/200:27:482
26578212010,21sleep10-21swapper/119:32:461
1812321165,93sleep00-21swapper/022:32:460
1868221137,32sleep10-21swapper/119:07:471
1868221137,32sleep10-21swapper/119:07:471
5830211250,17sleep10-21swapper/121:52:501
26379211211,29sleep00-21swapper/019:32:410
2256521120,9sleep317598-21cobalt_printf00:32:093
2080211216,44sleep12125-21cat21:42:371
901211150,24sleep1959-21if_err_eth023:22:361
3710211118,79sleep03746-21cat21:47:410
26721211149,20sleep10-21swapper/123:02:101
26721211149,20sleep10-21swapper/123:02:101
24338211116,15sleep10-21swapper/122:52:491
24338211116,15sleep10-21swapper/122:52:491
613321105,93sleep00-21swapper/020:12:210
14686211012,57sleep10-21swapper/120:37:541
14686211012,57sleep10-21swapper/120:37:541
9839210922,68sleep39910-21ls20:22:463
22497210914,75sleep222559-21/usr/sbin/munin21:02:502
985721077,53sleep10-21swapper/122:07:281
985721077,53sleep10-21swapper/122:07:281
16858210718,39sleep10-21swapper/120:45:411
16220210617,69sleep015699-21/usr/sbin/munin20:42:450
20024210424,18sleep10-21swapper/100:22:401
457210312,54sleep10-21swapper/123:22:081
16354210329,55sleep10-21swapper/122:27:381
2337321028,54sleep10-21swapper/119:22:451
22029210119,26sleep30-21swapper/321:02:393
15808210115,26sleep20-21swapper/220:42:352
5813210018,38sleep10-21swapper/120:11:261
5813210018,38sleep10-21swapper/120:11:261
80229921,57sleep3815-21fschecks_count23:22:343
3068229912,72sleep230803-21cat23:12:572
2478929930,16sleep10-21swapper/121:12:091
1780629727,18sleep117883-21mailstats20:47:471
1655629719,53sleep316648-21tune2fs00:12:363
368029623,52sleep33758-21find20:02:483
2573229631,47sleep10-21swapper/119:32:101
2006229630,54sleep120093-21munin-run20:57:071
654329516,63sleep06638-21sed21:57:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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