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2025-05-09 - 05:32

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 100 highest latencies:
System rackbslot7s.osadl.org (updated Fri May 09, 2025 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27541248646,424sleep127542-21ntp_states00:18:151
12257241955,307sleep0370-21snmpd23:28:540
15867236110,312sleep015908-21ntpq21:58:120
25332235612,328sleep025426-21fschecks_time19:03:080
8720230625,271sleep0370-21snmpd21:34:380
8720230625,271sleep0370-21snmpd21:34:380
19505226726,226sleep019656-21cat20:27:500
1430022648,16sleep00-21swapper/021:53:150
5459224345,20sleep00-21swapper/019:43:020
2499224247,172sleep00-21swapper/019:33:130
2499224247,172sleep00-21swapper/019:33:130
15017223725,197sleep00-21swapper/020:12:590
28378223539,139sleep00-21swapper/022:38:180
18689222957,120sleep018797-21fschecks_time22:08:050
18689222957,120sleep018797-21fschecks_time22:08:050
10966221830,150sleep011009-21idleruntime21:43:060
21668219927,137sleep021711-21sshd20:33:150
1153621946,156sleep0370-21snmpd20:01:360
10561219312,136sleep010687-21latency_hist21:42:490
6911219128,24sleep00-21swapper/021:28:200
19394219012,159sleep00-21swapper/023:53:060
15587218721,155sleep00-21swapper/023:42:030
10412218324,139sleep210561-21unixbench_multi23:23:192
31197218055,92sleep031244-21ntpq21:03:120
24356218043,97sleep00-21swapper/020:43:040
29368217145,20sleep029386-21fschecks_count20:58:070
6395217018,135sleep16357-21latency_hist23:12:481
6395217018,135sleep16357-21latency_hist23:12:481
5183216718,37sleep05197-21fschecks_count23:08:100
5183216718,37sleep05197-21fschecks_count23:08:100
20944216617,135sleep120986-21fschecks_count23:58:081
516321639,14sleep20-21swapper/223:08:082
516321639,14sleep20-21swapper/223:08:082
28366216327,15sleep00-21swapper/020:53:260
26171216011,110sleep026310-21latency_hist22:32:490
682421596,13sleep00-21swapper/023:13:110
682421596,13sleep00-21swapper/023:13:110
13495215516,98sleep10-21swapper/120:07:591
13057215328,110sleep213189-21sed21:48:212
1026521538,25sleep00-21swapper/023:23:170
30365215242,72sleep00-21swapper/019:18:140
12071215118,120sleep112132-21unin-run21:47:471
24023215017,23sleep00-21swapper/018:58:190
24023215017,23sleep00-21swapper/018:58:190
23023214728,103sleep223045-21latencyplot18:57:482
7715214328,91sleep37860-21sed19:48:183
10982214319,101sleep111010-21ls23:27:461
25254214220,106sleep225263-21vmstat20:43:232
1282821427,12sleep30-21swapper/320:03:213
20888213630,81sleep221038-21grep22:13:202
20888213630,81sleep221038-21grep22:13:202
4553213374,44sleep04652-21timerandwakeup19:38:420
10341213220,92sleep19856-21apt-get19:57:581
32722213015,97sleep032764-21munin-run19:27:470
22157213019,12sleep00-21swapper/022:18:150
22157213019,12sleep00-21swapper/022:18:150
21220212427,87sleep0370-21snmpd22:15:280
21220212427,87sleep0370-21snmpd22:15:280
1798321245,84sleep00-21swapper/022:04:050
1624521227,18sleep016253-21df23:43:080
30600212024,71sleep130733-21sed19:18:191
27687212066,37sleep00-21swapper/000:18:180
1846212013,87sleep31448-21apt-get22:57:513
949021189,62sleep00-21swapper/023:22:490
2684821185,83sleep00-21swapper/020:48:250
13763211810,95sleep00-21swapper/020:08:070
12575211610,53sleep00-21swapper/020:03:180
5236211518,77sleep35387-21latency_hist19:42:493
1256211512,62sleep00-21swapper/021:12:490
26024211417,76sleep326120-21fschecks_time20:48:083
3553211214,73sleep30-21swapper/321:18:173
8905211017,64sleep29048-21grep23:18:222
29763211017,77sleep329479-21/usr/sbin/munin22:43:103
2672521105,10sleep00-21swapper/000:16:570
2672521105,10sleep00-21swapper/000:16:570
149321106,29sleep00-21swapper/019:28:200
28630210819,17sleep00-21swapper/000:23:020
3981210657,34sleep00-21swapper/023:03:180
2971621059,81sleep029872-21date19:17:500
9233210420,27sleep10-21swapper/121:38:021
2958721049,54sleep00-21swapper/022:43:070
1789321048,25sleep00-21swapper/020:22:490
8317210351,40sleep0286-21dbus-daemon19:52:480
254621037,63sleep02616-21mailstats22:58:580
4677210246,44sleep04746-21fschecks_time21:23:070
24817210219,14sleep30-21swapper/322:28:033
12603210249,30sleep20-21swapper/223:32:482
4301210114,46sleep00-21swapper/021:22:460
2553721015,14sleep30-21swapper/300:13:043
2553721015,14sleep30-21swapper/300:13:043
2112721007,12sleep00-21swapper/023:58:110
18277210020,65sleep2227-21systemd-journal22:07:472
974029914,67sleep29802-21/usr/sbin/munin21:38:192
1776229910,71sleep10-21swapper/123:48:061
2709229724,60sleep00-21swapper/019:08:080
2211329733,31sleep10-21swapper/118:53:121
168329727,14sleep00-21swapper/021:13:130
3137829521,56sleep131446-21switchtime21:03:171
241729517,64sleep12425-21grep22:58:501
2042129545,18sleep00-21swapper/020:28:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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