You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-23 - 10:24

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 highest latencies:
System rackfslot4s.osadl.org (updated Tue Jun 23, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
804821350,2chrt8049-21seq22:50:590
2588321180,3chrt25881-21ld23:17:300
1566621170,2chrt15664-21ld23:02:080
881521150,3chrt8818-21cut23:40:500
3074921150,2sleep030750-21chrt23:25:070
2206921150,2sleep022067-21forks00:00:500
2556421120,3chrt25563-21seq20:50:110
1249821120,2chrt12497-21dpkg00:35:130
1942021110,2chrt19421-21chrt20:40:210
2245221090,2chrt22453-21sleep21:35:170
1087221090,2chrt10869-21cat19:35:030
78121080,2chrt774-21ps21:51:050
636021080,3chrt6361-21ssh00:25:540
1718621060,4chrt17187-21cat20:35:470
2620521030,2chrt26206-21sh19:59:080
1049621000,2sleep010497-21chrt00:31:400
67432980,2chrt6744-21sleep22:49:030
123982930,1sleep012400-21grep22:57:140
281192910,3sleep028120-21chrt21:43:110
103762890,3sleep010377-21sh22:05:480
311002850,2sleep031101-21seq00:14:270
3042850,2sleep0305-21chrt21:00:500
182552840,2sleep018256-21chrt23:55:150
61952830,2sleep06193-21fschecks_time21:10:570
138172790,2sleep013818-21seq20:30:430
114492780,2sleep011448-21tune2fs19:35:370
25782720,1sleep02579-21gcc19:20:590
69062690,2sleep06908-21chrt22:00:360
291062680,2sleep029107-21chrt23:22:050
147552680,2sleep014756-21chrt23:50:010
274432670,2sleep027447-21irqrtprio20:00:430
167642640,2sleep016766-21sort21:26:420
73072620,2chrt7305-21/usr/sbin/munin20:20:410
9972590,2sleep0998-21tune2fs20:10:370
46052580,2sleep04606-21chrt21:56:340
124652560,2sleep012466-21basename21:20:330
313462550,4sleep031344-21ssh21:47:590
309502530,3sleep030961-21seq20:06:000
41332510,2sleep04181-21cat20:15:400
293182514,8sleep029322-21users19:11:310
183902513,7sleep018395-21ssh22:17:180
27545904914,18cyclictest21777-21ssh23:11:150
114942493,8sleep011506-21ntpq20:26:550
27545904818,20cyclictest0-21swapper00:22:450
236692480,3chrt23667-21/usr/sbin/munin22:25:470
32092470,1sleep03222-21seq23:31:580
319282470,2chrt31754-21ssh00:15:370
27545904717,22cyclictest0-21swapper22:10:090
27545904716,23cyclictest0-21swapper23:39:580
2550324711,18sleep025506-21ntpq19:05:400
27545904616,23cyclictest0-21swapper00:07:530
27545904613,25cyclictest0-21swapper19:47:170
152082460,3chrt15211-21aten2.4_rfpower23:50:350
27545904518,19cyclictest0-21swapper21:18:520
27545904517,22cyclictest0-21swapper23:08:520
27545904416,21cyclictest0-21swapper22:23:130
27545904415,22cyclictest0-21swapper22:43:200
203062430,3sleep020300-21sshd21:31:220
53192420,2chrt5320-21seq21:09:560
327072420,3chrt32708-21sh19:17:160
298932420,4sleep029884-21ssh22:35:220
2754590426,28cyclictest28093-21ssh22:31:590
2754590424,18cyclictest5639-21ntpq19:25:560
2754590415,9cyclictest21763-21seq19:51:100
2754590405,10cyclictest29658-21wc20:55:500
2754590394,18cyclictest15147-21ntpq19:40:540
27545903913,8cyclictest0-21swapper20:48:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional