You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-19 - 03:57

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 #4, slot #6

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: 50 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 rack4slot6s.osadl.org (updated Wed Aug 19, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2421923090,3sleep024218-21wc21:35:270
3253922590,3sleep032540-21munin-plugin-st00:15:000
815222480,3sleep08150-21cpu22:40:110
2451421410,3sleep024512-21cat19:30:290
2906421400,4chrt29065-21/usr/sbin/munin00:00:210
1610721220,4chrt16108-21missed_timers23:10:190
2124421160,3chrt21245-21egrep21:25:120
3197921150,4chrt31982-21netstat20:00:200
2793921090,3sleep027940-21which23:55:250
2528721010,3sleep025285-21grep21:40:160
19592990,4sleep02016-21/usr/sbin/munin00:20:260
83622920,4sleep08365-21df_inode20:35:160
190192920,2sleep019016-21cat19:10:200
46572900,3sleep04713-21ntpq20:20:200
73602880,2sleep07359-21awk22:35:290
1754227923,32sleep017569-21df19:05:110
312482636,7sleep00-21swapper22:03:290
18719996334,17cyclictest23729-21/usr/sbin/munin23:40:140
1871999619,16cyclictest21348-21ntpq23:30:230
18719996111,18cyclictest18543-21df_inode23:20:120
18719996110,20cyclictest5663-21ntp_states00:35:240
18719996110,17cyclictest16059-21/usr/sbin/munin21:05:250
1871999609,16cyclictest5003-21sshd22:26:290
1871999608,19cyclictest24933-21/usr/sbin/munin23:45:290
18719996033,17cyclictest12076-21/usr/sbin/munin22:55:140
1871999597,18cyclictest26403-21/usr/sbin/munin21:45:290
18719995934,16cyclictest18690-21/usr/sbin/munin21:15:120
18719995934,15cyclictest30545-21/usr/sbin/munin00:05:310
18719995932,16cyclictest28124-21/usr/sbin/munin21:50:260
18719995932,16cyclictest13345-21runrttasks20:55:010
1871999589,17cyclictest2811-21grep00:25:120
1871999589,16cyclictest26440-21munin-run19:40:010
1871999589,16cyclictest15115-21grep23:05:270
1871999589,16cyclictest13503-21memory23:00:210
1871999589,14cyclictest31860-21ntp_states22:05:240
18719995833,16cyclictest6913-21runrttasks20:30:010
18719995833,15cyclictest1242-21runrttasks00:19:030
18719995820,13cyclictest30301-21latency_hist19:55:010
1871999579,16cyclictest13461-21/usr/sbin/munin20:55:320
1871999577,38cyclictest26584-21/usr/sbin/munin19:40:220
18719995732,15cyclictest630-21/usr/sbin/munin20:05:180
18719995730,17cyclictest3267-21/usr/sbin/munin20:15:170
18719995729,17cyclictest2344-21runrttasks22:16:030
18719995726,21cyclictest5645-21/usr/sbin/munin22:30:150
18719995720,14cyclictest20390-21ntp_states19:15:220
18719995714,14cyclictest7018-21/usr/sbin/munin20:30:200
18719995710,17cyclictest22697-21/usr/sbin/munin19:25:130
18719995710,16cyclictest22491-21grep23:35:170
18719995710,16cyclictest20062-21/usr/sbin/munin21:20:190
1871999568,16cyclictest14769-21/usr/sbin/munin21:00:260
1871999567,17cyclictest17834-21/usr/sbin/munin21:10:280
18719995633,15cyclictest3975-21runrttasks22:23:370
18719995632,16cyclictest9518-21/usr/sbin/munin22:45:160
18719995631,16cyclictest11031-21/usr/sbin/munin20:45:140
18719995630,15cyclictest29020-21latency_hist19:50:020
18719995628,19cyclictest17493-21/usr/sbin/munin23:15:240
18719995619,26cyclictest29803-21sshd21:57:240
18719995617,15cyclictest313142chrt19:57:490
18719995611,16cyclictest20525-21sshd23:26:420
18719995610,15cyclictest10780-21df_inode22:50:150
1871999558,14cyclictest4087-21/usr/sbin/munin00:30:140
1871999557,18cyclictest23706-21latency_hist21:35:000
1871999556,17cyclictest27307-21seq23:54:340
18719995530,16cyclictest1913-21/usr/sbin/munin20:10:130
18719995511,16cyclictest21486-21df_inode19:20:150
18719995431,15cyclictest10671-21runrttasks20:44:170
18719995330,16cyclictest1120-21runrttasks22:11:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional