You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-05 - 15:42

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 Fri Jun 05, 2026 12:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
25263286616,832sleep025289-21/usr/sbin/munin09:13:370
793527399,667sleep17907-21/usr/sbin/munin10:03:091
20889267813,650sleep020890-21sshd10:43:360
14461248511,459sleep014505-21ntpq12:03:310
1142624097,390sleep111462-21ntpq11:54:281
1124224028,382sleep111276-21ps08:28:341
272342315134,164sleep127328-21fschecks_time11:03:271
245622300140,136sleep10-21swapper/109:13:091
28781229223,253sleep328803-21fschecks_count11:08:253
3249223713,208sleep33319-21sensors11:28:393
30478222642,163sleep130603-21latency_hist07:48:101
25328219517,41sleep125480-21latency_hist10:58:101
3605219011,164sleep33679-21find08:03:383
21967218912,154sleep122057-21fschecks_time12:28:261
21949218813,159sleep121664-21/usr/sbin/munin09:03:291
6102218718,157sleep36168-21sort08:13:223
2180218127,134sleep32197-21apt-get11:28:063
15540217913,154sleep115606-21fschecks_time08:43:271
26006217619,52sleep10-21swapper/110:58:341
32409216612,138sleep032441-21tune2fs07:53:260
11420216415,44sleep10-21swapper/110:13:261
23523216214,87sleep123622-21cut12:33:261
6586215819,77sleep16652-21awk08:13:371
6563215815,128sleep06585-21awk08:13:360
21439215711,12sleep10-21swapper/110:44:141
16144215521,120sleep117481-21cyclictest12:08:361
16144215521,120sleep117481-21cyclictest12:08:361
13231215217,122sleep113274-21ntp_kernel_pll_10:18:311
20902215113,117sleep120961-21basename07:18:081
20097214617,15sleep10-21swapper/112:23:091
1054521438,37sleep10-21swapper/108:28:101
1655821405,10sleep20-21swapper/212:08:412
1655821405,10sleep20-21swapper/212:08:412
30751213421,90sleep230755-21find07:48:192
19159213010,21sleep10-21swapper/108:53:361
10301212918,97sleep110393-21awk10:08:341
5603212612,39sleep10-21swapper/111:38:091
507212619,59sleep10-21swapper/111:21:351
1384521246,14sleep10-21swapper/112:03:071
21105212318,38sleep10-21swapper/112:23:381
8441212288,16sleep10-21swapper/110:03:301
792321209,16sleep10-21swapper/108:18:291
31739211913,89sleep10-21swapper/109:33:391
18530211913,31sleep218532-21/usr/sbin/munin08:53:172
16519211916,44sleep116586-21cat10:28:361
7777211815,87sleep27812-21ntp_kernel_pll_11:43:312
5333211811,41sleep10-21swapper/109:53:451
27697211861,42sleep127837-21latency_hist09:23:101
11535211814,91sleep311594-21latency10:13:293
3176321178,11sleep10-21swapper/107:49:401
1785211711,87sleep31845-21/usr/sbin/munin09:43:263
23228211414,37sleep10-21swapper/107:23:361
25946211313,86sleep025953-21forks07:33:280
25946211313,86sleep025953-21forks07:33:280
1546021130,9sleep20-21swapper/208:43:232
14307211313,31sleep10-21swapper/112:03:281
917921128,91sleep19161-21apt-get11:48:261
65021129,38sleep10-21swapper/109:38:361
297221127,16sleep00-21swapper/008:03:140
22935211213,77sleep022996-21sendmail_mailqu10:49:050
333221119,36sleep10-21swapper/109:48:241
30678211118,81sleep10-21swapper/109:32:221
1566221118,43sleep115688-21munin-run10:28:071
9320211016,67sleep20-21swapper/208:23:262
2834211017,79sleep12863-21grep11:28:291
18333211010,35sleep10-21swapper/110:33:401
888921098,83sleep11222-1kworker/1:0H11:48:101
11279210912,82sleep211359-21cat08:28:352
26316210811,32sleep10-21swapper/107:33:371
26316210811,32sleep10-21swapper/107:33:371
16587210816,75sleep216720-21timerwakeupswit10:28:372
24889210739,53sleep10-21swapper/107:28:371
15077210715,58sleep10-21swapper/108:42:021
310521066,32sleep10-21swapper/108:03:281
29170210613,79sleep029206-21idleruntime07:43:290
19819210314,75sleep019885-21modprobe08:58:070
2227521026,10sleep10-21swapper/107:20:341
31592210117,66sleep231639-21grep11:18:092
229992997,30sleep10-21swapper/110:49:061
3000329716,68sleep230076-21latency_hist11:13:082
1855729714,69sleep318624-21df08:53:223
25492966,29sleep10-21swapper/108:01:021
2040129613,70sleep020486-21cat08:58:270
200332966,30sleep10-21swapper/110:39:091
2908829512,61sleep10-21swapper/111:08:311
1477029519,57sleep00-21swapper/010:23:300
1039429515,55sleep210525-21unixbench_multi10:08:352
2378129415,43sleep20-21swapper/209:08:342
2322329416,65sleep023229-21cat09:08:160
213112949,68sleep021402-21fschecks_time07:18:270
70942935,30sleep10-21swapper/111:43:061
286152936,29sleep10-21swapper/107:42:051
286152936,29sleep10-21swapper/107:42:051
2059229324,55sleep10-21swapper/108:58:321
2818529216,59sleep328334-21uptime07:38:403
2818529216,59sleep328334-21uptime07:38:403
515129153,18sleep10-21swapper/108:08:361
2480029021,55sleep10-21swapper/109:13:211
2889328921,54sleep10-21swapper/109:24:191
2319228912,62sleep023245-21latency_hist12:33:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional