You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-10-19 - 23:51

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 #f, slot #4

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.

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
Compare latency of primary with shadow system
Characteristics of the 792 highest latencies:
System rackfslot4s.osadl.org (updated Mon Oct 19, 2026 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2573821320,3chrt25736-21fw_packets11:55:540
997721240,2chrt9976-21/usr/sbin/munin12:21:000
3048821240,2chrt30489-21vmstat12:02:260
825521220,3chrt8256-21sleep07:20:260
1360621210,2chrt13597-21irqstats12:26:080
756321200,2chrt7562-21ssh12:17:030
1129721200,2chrt11295-21ld08:16:220
3186421180,2chrt31865-21chrt09:39:520
2080421180,2sleep020802-21df_inode07:40:300
404621160,1sleep04049-21seq11:22:420
1730221140,2chrt17303-21seq09:17:220
2670621130,2sleep026708-21apt-key10:20:110
602321120,2chrt6024-21chrt09:49:390
1688521120,2chrt16886-21sleep12:31:050
3228621100,2chrt32288-21sleep10:27:430
1917721100,2sleep019176-21seq12:35:130
2161321090,3chrt21614-21sh09:24:170
1380121090,2sleep013802-21timerwakeupswit11:37:200
1550421080,3chrt15503-21seq07:31:130
3078221070,3chrt30781-21cut07:55:450
1655821030,3chrt16559-21chrt10:53:020
38932970,2sleep03894-21chrt10:34:310
317602910,2sleep031762-21chrt08:50:010
219082910,1sleep021909-21seq11:50:300
116952890,2sleep011693-21if_err_eth210:46:010
226622870,1sleep022663-21chrt10:13:580
256922850,2sleep025694-21cut09:30:350
274782830,1sleep027479-21chrt11:09:590
21472830,1sleep02146-21seq12:09:220
286872800,2sleep028688-21seq08:45:030
202762770,2sleep020278-21tr11:47:140
139112710,2sleep013913-21grep10:00:550
244882680,2sleep024491-21seq07:45:460
135932660,2sleep013594-21seq09:12:070
69212630,1sleep06920-21grep09:50:520
51442610,1sleep05146-21irqrtprio10:36:040
266432610,1sleep026644-21cat10:20:100
64992590,2sleep06501-21cut09:00:450
86742586,7sleep08680-21ssh10:41:090
195852567,40sleep019511-21apt-get08:30:260
116212563,7sleep011612-21ntpq09:57:280
37222553,6sleep03730-21chrt08:56:030
21282550,2sleep02129-21chrt07:10:280
105402554,7sleep010548-21vmstat11:32:250
97712540,2sleep09769-21ls08:15:000
63372543,43sleep06340-21memory11:26:120
236682523,6sleep023682-21ntpq08:35:560
7672512,7sleep0771-21ntp_states08:51:170
235352502,6sleep023543-21ld09:26:400
121952502,40sleep012203-21ld07:25:550
177642493,37sleep017827-21users08:26:300
166772493,6sleep016683-21ntp_states11:41:480
1653904919,22cyclictest0-21swapper11:14:250
275442482,6sleep026878-21/usr/sbin/munin07:51:250
195622480,2sleep019566-21chrt10:09:290
180012480,1sleep018055-21irqrtprio07:35:430
15802471,4sleep00-21swapper11:19:490
9842462,37sleep0971-21ntpq09:41:260
3208324612,18sleep032093-21ntpq07:05:400
49492442,34sleep04944-21ssh12:13:090
7032430,3chrt702-21seq08:00:230
66542432,34sleep06670-21munin-run08:10:000
184582430,2chrt18460-21runrttasks10:56:220
1653904213,9cyclictest14241-21ntpq08:21:050
165390405,17cyclictest22592-21runrttasks11:01:500
165390404,9cyclictest10278-21sendmail_mailtr09:06:250
1653903913,8cyclictest0-21swapper07:15:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional