You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-27 - 07:15

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 Mon Jul 27, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32408273845,600sleep011-21ksoftirqd/020:52:590
18227252515,93sleep00-21swapper/021:48:220
1780925045,486sleep00-21swapper/023:29:550
29302241217,372sleep129332-21awk20:42:591
32591238519,349sleep332593-21/usr/sbin/munin00:18:103
946423788,355sleep19475-21ntpq23:03:281
15166237342,319sleep015210-21ntpq21:38:250
2782023639,299sleep027965-21latency_hist20:38:010
30038234211,317sleep230049-21ntpq20:43:242
2743231414,229sleep02873-21unixbench_multi20:58:280
2754123059,280sleep00-21swapper/022:18:170
2726922790,68sleep031163-21cyclictest22:18:000
32011224913,222sleep132019-21ntpq19:08:321
32011224913,222sleep132019-21ntpq19:08:321
5284223111,205sleep25343-21ps00:33:272
27530222955,77sleep00-21swapper/000:03:010
28409221416,184sleep228420-21grep20:38:242
11280221420,172sleep211417-21unixbench_singl23:08:292
22518221110,186sleep122633-21sed20:18:491
4403220812,180sleep00-21swapper/022:48:170
386822056,11sleep00-21swapper/022:45:420
1186922058,94sleep00-21swapper/021:28:190
2277421989,124sleep00-21swapper/022:03:110
1726421935,48sleep00-21swapper/021:44:020
3024218917,111sleep00-21swapper/000:28:000
3253121886,119sleep0412-1kworker/0:0H22:33:270
217072187114,60sleep021284-21apt-get20:18:030
2375021856,164sleep023791-21ntpq20:23:240
2375021856,164sleep023791-21ntpq20:23:240
1586218074,26sleep00-21swapper/022:38:240
2508217815,149sleep32518-21ntp_states20:58:233
12398217869,24sleep00-21swapper/019:48:200
5863217327,124sleep26000-21grep21:08:312
20768217223,132sleep320910-21latency_hist21:58:013
8255217175,74sleep00-21swapper/019:34:270
29184216815,89sleep029196-21modprobe00:07:580
29184216815,89sleep029196-21modprobe00:07:580
357121636,141sleep00-21swapper/019:18:530
16776216012,91sleep016794-21latency_hist20:03:130
16776216012,91sleep016794-21latency_hist20:03:130
30534215964,78sleep00-21swapper/020:43:550
10683215765,21sleep00-21swapper/019:43:150
10683215765,21sleep00-21swapper/019:43:150
20474215315,124sleep05763-1kworker/0:1H23:38:310
3037821519,106sleep030391-21awk00:08:340
3989214469,56sleep00-21swapper/021:03:250
29287214164,53sleep00-21swapper/022:23:260
22275213952,71sleep022320-21apt-config22:02:590
468213643,71sleep00-21swapper/020:53:110
9831213449,22sleep010006-21cut21:23:020
18800213249,71sleep018839-21wc23:33:300
6191212945,16sleep00-21swapper/000:38:010
21449212811,100sleep00-21swapper/023:43:110
20164212851,21sleep020305-21uptime21:53:300
3166821279,104sleep031793-21timerwakeupswit00:13:310
31815212612,88sleep00-21swapper/019:08:270
31815212612,88sleep00-21swapper/019:08:270
19974212317,82sleep00-21swapper/020:13:100
1107221236,64sleep00-21swapper/021:24:200
6487212222,20sleep00-21swapper/021:13:010
30102212221,84sleep230227-21timerwakeupswit00:08:322
12956211817,19sleep20-21swapper/221:33:022
23100211724,73sleep123198-21fschecks_time23:48:211
9723211519,72sleep39823-21apt-config21:23:013
20477211312,83sleep220543-21sendmail_mailqu20:13:292
3110721095,87sleep00-21swapper/022:28:310
31059210936,51sleep2278-21dbus-daemon19:08:012
16027210813,81sleep316075-21/usr/sbin/munin21:43:003
4861210734,40sleep25003-21grep19:23:312
2567721066,11sleep00-21swapper/023:56:190
17398210513,76sleep217420-21/usr/sbin/munin20:03:482
922621048,22sleep00-21swapper/023:03:220
18851210410,81sleep018894-21ntpq20:08:260
16789210325,46sleep116783-21apt-get23:28:141
17571210215,72sleep117587-21idleruntime-cro21:47:581
12106210219,47sleep20-21swapper/223:13:132
14141210116,62sleep213751-21/usr/sbin/munin19:53:222
16551210010,78sleep016597-21latency_hist23:28:010
15318210011,72sleep115324-21diskstats23:23:181
3115729919,59sleep30-21swapper/319:08:023
168129813,63sleep00-21swapper/019:13:320
606829729,51sleep16092-21apt00:37:581
2276429713,69sleep122838-21latency_hist23:48:001
180929714,67sleep11864-21fschecks_time00:23:211
1425829713,69sleep314321-21/usr/sbin/munin19:53:273
2409129614,60sleep124219-21ls22:08:011
1833629617,61sleep318341-21cpu23:33:173
799329522,57sleep18039-21idleruntime-cro21:17:591
45732959,62sleep05763-1kworker/0:1H00:33:010
2972429525,32sleep00-21swapper/019:03:150
255029517,26sleep20-21swapper/222:43:022
1978529123,46sleep119829-21ntpq21:53:231
2144829015,56sleep121468-21/usr/sbin/munin21:58:281
1884029010,65sleep118919-21mailstats23:33:311
262302898,65sleep026306-21sed20:33:010
243002889,66sleep024322-21latency_hist23:53:000
231228819,46sleep32340-21modprobe19:17:593
2114628812,62sleep121147-21sshd20:16:261
722028614,54sleep37161-21latency_hist22:58:003
71982868,66sleep06703-21/usr/sbin/munin21:13:300
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional