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2026-05-30 - 14:26

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 Sat May 30, 2026 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
21388245179,285sleep021456-21latency_hist20:43:330
1263924096,390sleep012680-21ntpq20:13:550
2434624067,386sleep024393-21ntpq22:33:560
2434624067,386sleep024393-21ntpq22:33:560
146423969,375sleep01502-21grep19:38:490
3203123400,9sleep10-21swapper/119:33:321
1606423187,231sleep016216-21sed23:49:010
1069122955,69sleep00-21swapper/021:49:010
1069122955,69sleep00-21swapper/021:49:010
18970226485,163sleep019041-21true22:18:310
1139222738,21sleep00-21swapper/019:38:320
10426221212,184sleep210427-21http23:33:462
1506220111,174sleep11586-21fw_packets19:38:501
24486218716,154sleep124437-21latency_hist00:18:321
24486218716,154sleep124437-21latency_hist00:18:321
22144218726,24sleep00-21swapper/022:28:310
22144218726,24sleep00-21swapper/022:28:310
11551218311,156sleep311611-21fschecks_time21:53:493
27153218012,31sleep027222-21fschecks_time22:43:490
27153218012,31sleep027222-21fschecks_time22:43:490
30055217219,131sleep130197-21unixbench_multi00:34:011
2667421710,7sleep20-21swapper/200:23:562
17967217016,137sleep218028-21latency22:13:532
11765217013,36sleep011878-21latency_hist23:38:320
8083216719,133sleep28131-21unin-run21:43:312
8083216719,133sleep28131-21unin-run21:43:312
2944216512,135sleep0363-21snmpd23:08:580
17358216215,132sleep117396-21processes23:53:581
5006216116,121sleep00-21swapper/021:33:320
18148215613,125sleep018164-21modprobe23:58:290
26629215017,115sleep026736-21timerandwakeup19:13:590
19773214810,124sleep019859-21mailstats22:18:590
8455214679,54sleep08464-21forks21:43:490
286162141101,20sleep00-21swapper/022:48:450
2112621399,119sleep0363-21snmpd00:06:240
2112621399,119sleep0363-21snmpd00:06:240
290962138113,15sleep0363-21snmpd21:08:060
10225213868,60sleep0363-21snmpd20:06:000
18262213610,21sleep00-21swapper/020:33:320
15608213629,25sleep00-21swapper/020:23:520
15608213629,25sleep00-21swapper/020:23:520
31613213515,28sleep20-21swapper/221:14:132
24028213512,110sleep224064-21fschecks_count22:33:502
24028213512,110sleep224064-21fschecks_count22:33:502
8394213310,28sleep08440-21latency_hist23:28:310
8394213310,28sleep08440-21latency_hist23:28:310
22266213326,82sleep10-21swapper/100:09:031
22266213326,82sleep10-21swapper/100:09:031
12447213312,20sleep00-21swapper/023:38:560
325532132105,15sleep032567-21munin-run21:18:310
14032213114,14sleep00-21swapper/020:18:510
30468212916,99sleep130438-21latency_hist19:28:331
22824212932,76sleep022905-21wc19:03:590
641821287,48sleep00-21swapper/021:37:230
31425212819,30sleep031428-21cron22:58:290
4565212711,98sleep04607-21fschecks_count19:48:490
13759212711,100sleep013779-21apt-get23:43:400
10712212719,86sleep310396-21/usr/sbin/munin23:34:033
3055321266,10sleep00-21swapper/021:11:450
24443212416,89sleep124466-21latency_hist20:53:301
23696212210,30sleep023826-21latency_hist22:33:320
17784212225,70sleep30-21swapper/322:13:503
30714212011,19sleep00-21swapper/000:38:320
739821159,91sleep07476-21switchtime21:39:010
739821159,91sleep07476-21switchtime21:39:010
3916211510,92sleep03923-21acpi23:13:380
2724921155,11sleep00-21swapper/000:24:520
25102211420,30sleep10-21swapper/120:53:551
13510211471,27sleep00-21swapper/021:58:580
32005211311,80sleep00-21swapper/019:33:320
26284211369,21sleep00-21swapper/020:58:420
2317421139,26sleep023190-21grep20:48:450
1218211314,82sleep21244-21netstat23:03:562
1887721128,27sleep018913-21ntpq23:58:580
14085211218,28sleep10-21swapper/120:18:521
11837211110,79sleep00-21swapper/021:53:540
876621105,11sleep00-21swapper/020:02:090
2895321106,11sleep00-21swapper/000:31:500
29239210947,43sleep00-21swapper/019:23:480
27545210923,69sleep127610-21sendmail_mailqu22:43:581
27545210923,69sleep127610-21sendmail_mailqu22:43:581
19839210916,73sleep020002-21latency_hist20:38:320
27911210619,67sleep127950-21fschecks_count00:28:491
1009821060,8sleep10-21swapper/121:48:491
1009821060,8sleep10-21swapper/121:48:491
2429721055,68sleep00-21swapper/000:17:050
2429721055,68sleep00-21swapper/000:17:050
10471210518,23sleep30-21swapper/320:08:333
3011210362,24sleep00-21swapper/019:43:490
27877210375,16sleep027925-21latency19:18:510
580521029,15sleep00-21swapper/023:18:510
29641210216,65sleep229722-21mailstats19:23:582
29403210228,45sleep329422-21apt-get21:08:413
25707210110,75sleep225709-21sshd20:54:522
2472221017,14sleep00-21swapper/000:18:430
2450821017,14sleep00-21swapper/019:09:350
2450821017,14sleep00-21swapper/019:09:350
201521015,11sleep00-21swapper/023:07:210
30426210017,28sleep20-21swapper/200:35:522
2158221009,75sleep00-21swapper/000:08:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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