You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-08 - 07:47

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 all highest latencies:
System rackfslot4s.osadl.org (updated Fri May 08, 2026 00:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2311321380,2sleep023115-21chrt23:49:120
3089021260,3chrt30878-21ntpq23:11:350
2387621220,3chrt23875-21ssh00:38:470
2149521190,2sleep021496-21xargs22:57:230
2326321180,2sleep023326-21grep20:31:290
597821170,2chrt5975-21ntpq20:56:040
2935221170,2sleep029353-21chrt23:10:000
2303221160,2chrt23034-21runrttasks21:22:430
1695021150,1sleep016952-21open_inodes22:02:170
2653421130,2sleep026535-21seq21:28:050
636421110,2sleep06363-21seq00:12:200
1032821100,2chrt10327-21seq19:20:210
2998521090,2chrt29986-21runrttasks19:50:440
2086021090,2chrt20861-21sleep19:35:550
1767621070,2chrt17677-21sleep20:22:520
1424821070,2chrt14249-21seq00:24:550
1608021060,3chrt16081-21ssh00:26:590
1276721050,2sleep012769-21grep22:45:040
39752900,2sleep04017-21basename23:20:350
19102890,2sleep01911-21seq21:40:280
95192870,2sleep09520-21seq19:18:310
83672860,2sleep08369-21latency_hist21:50:030
130762860,2sleep013077-21chrt21:56:210
289102850,2chrt28882-21ntpq21:31:350
276782850,2sleep027679-21rm22:18:220
326902840,2sleep032691-21seq19:55:360
79232820,2sleep07926-21cut23:26:070
176102810,2chrt17586-21ntpq22:51:360
88292790,2sleep08832-21sed00:16:060
72492790,2sleep07248-21ld20:06:110
41082770,1sleep04109-21chrt00:09:340
15202779,54sleep01707-21irqstats19:05:330
310502760,2sleep031051-21cat22:23:130
253932750,1sleep025394-21runrttasks23:03:330
189072750,2sleep018909-21seq19:33:060
193662740,1sleep019368-21if_eth222:06:040
229482720,2sleep022949-21chrt19:40:160
248362710,1sleep024837-21seq20:35:110
117142690,2sleep011713-21ls21:55:030
320552680,2sleep032056-21chrt22:25:090
312042660,2sleep031205-21chrt20:45:240
129282650,2sleep012929-21chrt23:33:420
92512640,2sleep09252-21chrt21:01:180
49522640,2sleep04955-21kernelversion19:10:470
161872630,1sleep016188-21cat21:12:310
305242620,2sleep030525-21seq20:44:030
321272610,1sleep032138-21ld21:36:220
250652590,2sleep025066-21chrt22:15:020
153252585,43sleep015333-21sleep23:37:080
305802570,2sleep030581-21aten2.4_rfpower00:00:340
65312560,2sleep06533-21cut22:35:350
263652563,7sleep026372-21diskstats19:45:310
91002540,2sleep09099-21seq20:10:120
198592540,3sleep019844-21ssh00:32:210
204452530,3sleep020444-21seq21:19:310
181802512,6sleep018176-21ssh23:41:160
133372513,39sleep013331-21ntpq20:16:030
3898905020,23cyclictest0-21swapper23:57:450
249962504,6sleep024984-21ntpq23:51:330
15712504,38sleep01574-21ntpq23:16:170
32092470,1sleep03210-21sh20:00:270
144142473,35sleep014409-21ntpq19:25:540
389890458,20cyclictest5008-21ssh22:32:300
3898904115,19cyclictest11628-21if_err_eth021:05:410
3898904112,22cyclictest0-21swapper22:49:250
24292410,2chrt2428-21cut20:50:440
3898904019,14cyclictest0-21swapper20:25:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional