You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-10 - 18:31

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 Jul 10, 2026 12:44:34)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3072421260,3chrt30725-21/usr/sbin/munin11:26:440
3203721240,2chrt32034-21ntpq08:10:570
902021200,2sleep09021-21sh10:54:050
2885521200,1sleep028893-21aten2.4-expect10:35:340
937221180,3chrt9370-21smartctl08:26:310
1068021160,2chrt10681-21runrttasks09:19:560
3185621150,4chrt31849-21ps09:51:090
2883921140,2chrt28840-21/usr/sbin/munin08:05:500
1695421140,2sleep016955-21chrt11:54:420
106821130,2sleep01074-21chrt12:18:550
295521120,2chrt2956-21chrt07:25:030
486721110,2chrt4868-21ssh09:59:440
1555221110,2chrt15553-21chrt11:03:480
2018621090,2chrt20185-21seq09:33:420
1823921080,3chrt18240-21rm10:19:270
181421080,2chrt1812-21sshd11:31:250
750921070,3chrt7510-21runrttasks12:28:250
2959221070,2chrt29594-21switchtime09:47:260
2679521050,2chrt26796-21sleep08:02:330
384021030,1sleep03842-21irqrtprio10:46:070
1731121020,2sleep017312-21seq09:29:480
39252990,2chrt3926-21sh09:09:460
16162970,2sleep01617-21seq10:42:350
255372960,2sleep025538-21ld12:06:440
215132960,2sleep021514-21cat12:01:000
199642950,2sleep019966-21find07:51:240
205522940,2sleep020555-21cut11:11:060
325972870,2sleep032600-21aten2.4_rfpower07:20:260
221672850,2sleep022169-21cut10:25:320
284402840,2sleep028441-21fschecks_time12:11:290
25997907916,55cyclictest21617-21ssh09:36:010
25997907713,55cyclictest5927-21sleep09:12:150
256042770,2sleep025605-21seq11:19:070
176852760,1sleep017687-21cut08:40:230
174472760,2sleep017451-21wc08:40:030
120562760,1sleep012057-21ls12:35:360
114092760,2sleep011411-21cut11:46:040
85752750,2sleep08576-21seq11:41:360
2599790755,13cyclictest17701-21ssh11:06:470
2599790754,60cyclictest17092-21apt-get11:55:300
2599790746,58cyclictest4291-21diskstats11:35:460
2599790745,10cyclictest23844-21munin-run08:50:020
2599790745,10cyclictest15926-21perl07:45:380
279472730,2sleep027950-21wc11:22:120
2599790738,11cyclictest11700-21apt-get10:10:590
2599790735,12cyclictest9037-21munin-run07:35:020
2599790735,11cyclictest26947-21munin-run08:55:040
2599790735,10cyclictest10135-21ntpq10:07:000
2599790733,55cyclictest6257-21irqstats10:01:080
48402720,1sleep04841-21aten2.4_rfpower08:20:240
2599790725,57cyclictest10956-21sleep09:20:140
2599790725,10cyclictest30462-21/usr/sbin/munin09:01:360
2599790725,10cyclictest22885-21ntp_states07:56:130
2599790724,9cyclictest8353-21/usr/sbin/munin12:31:070
130442720,2sleep013047-21awk08:32:230
2599790717,10cyclictest2093-21perl08:15:370
2599790715,56cyclictest4034-21diskmemload10:21:440
2599790715,55cyclictest1750-21apt-get12:20:190
2599790715,11cyclictest25525-21ntpq09:41:210
2599790715,10cyclictest26348-21irqstats10:31:070
2599790714,56cyclictest9454-21telnet07:35:260
25997907116,46cyclictest436-21runrttasks07:41:290
115272710,2sleep011529-21cat10:57:230
2599790704,9cyclictest29230-21/usr/sbin/munin07:16:340
25997907012,10cyclictest420-21lldpd08:58:120
2599790696,11cyclictest26133-21apt-get07:10:130
2599790626,10cyclictest26011-21sort07:10:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional