You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-24 - 13:42

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

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 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 Sun May 24, 2026 00:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
265562722014,7194sleep125008-21kworker/1:023:11:571
31532256318,528sleep031566-21/usr/sbin/munin21:44:210
31532256318,528sleep031566-21/usr/sbin/munin21:44:210
16638256016,525sleep216708-21/usr/sbin/munin00:24:082
21063254616,513sleep121011-21latency_hist00:38:531
25303243139,377sleep325341-21ntpq21:24:183
29159240910,385sleep329249-21cat23:19:223
18161228826,237sleep318225-21ps19:19:203
2119422667,245sleep321240-21ntpq19:29:173
13230226628,202sleep312718-21/usr/sbin/munin22:29:253
23898225547,126sleep30-21swapper/321:19:213
32334225315,220sleep232379-21/usr/sbin/munin23:29:462
15043223540,178sleep315183-21unixbench_singl22:34:253
5654223018,86sleep35804-21unixbench_singl22:04:263
17182221940,117sleep3363-21snmpd22:43:543
29275221524,166sleep029423-21grep19:54:250
7108220128,112sleep30-21swapper/320:29:113
9829219951,129sleep39866-21systemctl20:38:523
19491219816,137sleep319590-21latency_hist00:33:553
31926219613,64sleep30-21swapper/323:29:073
23628219210,166sleep023711-21sed21:19:140
1192021879,154sleep00-21swapper/000:09:040
11732217913,150sleep111880-21latency_hist20:43:551
31240217512,122sleep331332-21fschecks_time21:44:163
31240217512,122sleep331332-21fschecks_time21:44:163
9325217122,123sleep07881-1kworker/0:1H22:18:520
19913217017,134sleep219713-21latency_hist21:08:552
2339216625,130sleep32386-21grep20:14:103
27001216551,62sleep30-21swapper/323:14:093
20551216542,106sleep30-21swapper/322:53:553
21036216411,137sleep30-21swapper/322:54:153
31403215845,98sleep331424-21awk20:03:523
1678421577,25sleep30-21swapper/319:14:243
99321539,133sleep31013-21dpkg23:34:033
31525215341,62sleep30-21swapper/323:28:543
31525215341,62sleep30-21swapper/323:28:543
215021539,126sleep32193-21ntp_kernel_pll_21:54:173
215021539,126sleep32193-21ntp_kernel_pll_21:54:173
11934215219,55sleep30-21swapper/320:44:053
752214528,17sleep30-21swapper/320:08:573
752214528,17sleep30-21swapper/320:08:573
5446214228,95sleep05465-21apt-get20:24:040
3232214212,115sleep03360-21sed23:39:250
10180214215,61sleep30-21swapper/300:03:543
28100214116,81sleep00-21swapper/021:34:110
6181214015,68sleep36245-21mailstats23:49:213
25828213843,56sleep325873-21ntpq23:09:173
20800213711,114sleep320889-21cat21:09:243
20285213617,61sleep30-21swapper/300:34:233
7569213114,54sleep30-21swapper/322:11:573
335421318,33sleep30-21swapper/321:59:093
7640212910,106sleep27641-21date22:12:362
385321299,102sleep33879-21awk23:43:523
1810921299,105sleep318267-21sed22:44:263
1810921299,105sleep318267-21sed22:44:263
1036721297,21sleep30-21swapper/300:04:023
8591212856,20sleep30-21swapper/323:58:543
13986212816,49sleep30-21swapper/320:49:223
13986212816,49sleep30-21swapper/320:49:223
9732212213,95sleep09792-21fschecks_time22:19:120
22915212215,18sleep10-21swapper/122:59:221
25225211840,63sleep325290-21date19:43:543
13905211543,32sleep20-21swapper/219:08:542
13905211543,32sleep20-21swapper/219:08:542
23895211311,22sleep20-21swapper/219:39:052
19159211010,81sleep118697-21apt-get22:48:561
17141211012,60sleep30-21swapper/300:24:223
7615210912,73sleep27220-21/usr/sbin/munin23:54:162
27541210912,22sleep127605-21sensors23:14:231
685210812,80sleep2694-21awk21:49:192
685210812,80sleep2694-21awk21:49:192
1397321079,18sleep30-21swapper/319:08:553
1397321079,18sleep30-21swapper/319:08:553
29928210613,52sleep330080-21latency_hist19:58:563
28636210530,16sleep30-21swapper/321:34:233
22317210412,50sleep30-21swapper/322:59:033
20501210444,16sleep30-21swapper/319:28:533
18210210427,62sleep318361-21date21:03:553
1022121048,16sleep30-21swapper/322:19:233
590210332,58sleep3629-21ntpq21:49:163
590210332,58sleep3629-21ntpq21:49:163
13944210324,28sleep313955-21ntpq00:14:203
27691210113,71sleep00-21swapper/019:49:240
19681210112,19sleep30-21swapper/321:08:523
19186210118,57sleep00-21swapper/022:49:030
494210045,18sleep31-21systemd20:08:533
312562995,13sleep20-21swapper/220:01:582
719229817,65sleep07236-21sort20:29:120
442629825,17sleep30-21swapper/320:19:223
2404729841,18sleep30-21swapper/323:04:123
87329720,62sleep0906-21grep20:09:100
87329720,62sleep0906-21grep20:09:100
78829722,60sleep1855-21ls20:09:071
78829722,60sleep1855-21ls20:09:071
733329726,48sleep17373-21sort23:54:111
998829616,61sleep110121-21sed20:38:541
81362969,44sleep30-21swapper/322:14:113
296729614,65sleep12990-21/usr/sbin/munin23:39:181
1105529524,59sleep311143-21cat20:40:093
57422946,34sleep30-21swapper/320:24:153
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional