You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-15 - 00:34

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 Fri Aug 14, 2026 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
744822680,3sleep07449-21sshd09:34:420
2862222590,2sleep028621-21ls08:50:160
1054721600,4sleep010545-21wc07:40:160
1574521350,3chrt15744-21/usr/sbin/munin08:00:190
2471921250,4chrt24717-21irqstats08:35:170
1011121160,3chrt10112-21latency_hist09:45:010
1027721130,4sleep010214-21/usr/sbin/munin09:45:150
1449621100,4chrt14497-21/usr/sbin/munin10:00:250
31452950,4sleep03218-21uptime07:10:270
27092920,3sleep02710-21expr11:20:240
209029118,56sleep00-21swapper07:06:450
178742910,4sleep017916-21if_eth012:20:160
82232890,4sleep08289-21cat07:30:300
24082880,2chrt2410-21latency_hist09:15:010
119722885,9sleep011989-21/usr/sbin/munin07:45:240
150532840,4sleep015071-21basename12:10:000
248462820,4sleep024912-21ls10:40:270
27102810,2sleep02709-21awk09:15:190
294702800,5sleep029554-21latency_hist11:00:030
299292775,60sleep029947-21missed_timers08:55:230
168832750,3sleep016882-21wc12:15:270
2534996523,13cyclictest27780-21sshd08:45:330
253499629,20cyclictest973-21/usr/sbin/munin11:15:120
253499619,19cyclictest19553-21ntp_states10:20:220
253499618,18cyclictest19708-21runrttasks08:15:240
253499609,17cyclictest7914-21ntp_states09:35:230
253499609,17cyclictest20651-21ntp_states12:30:230
2534996036,16cyclictest21057-21/usr/sbin/munin08:20:250
253499599,18cyclictest4865-21/usr/sbin/munin11:30:240
253499599,16cyclictest5236-21/usr/sbin/munin07:20:200
253499599,16cyclictest15970-21users10:05:290
253499599,16cyclictest12616-21/usr/sbin/munin12:00:240
253499596,19cyclictest6524-21/usr/sbin/munin07:25:330
2534995927,22cyclictest16432-21latency_hist12:15:020
253499589,17cyclictest19125-21cat10:20:010
253499589,15cyclictest11781-21ntp_states09:50:220
2534995834,16cyclictest27093-21latency_hist08:45:010
2534995834,15cyclictest377-21/usr/sbin/munin09:05:260
2534995811,14cyclictest6424-21/usr/sbin/munin11:35:200
253499579,16cyclictest22007-21/usr/sbin/munin08:25:140
253499579,15cyclictest27178-21memory10:50:180
253499577,17cyclictest16843-21/usr/sbin/munin08:05:150
2534995732,17cyclictest29939-21/usr/sbin/munin11:00:260
2534995732,16cyclictest12886-21/usr/sbin/munin09:55:160
2534995732,15cyclictest14355-21/usr/sbin/munin07:55:160
2534995730,17cyclictest18252-21/usr/sbin/munin08:10:160
2534995710,15cyclictest4019-21/usr/sbin/munin09:20:190
253499569,16cyclictest23112-21/usr/sbin/munin10:35:140
253499569,15cyclictest30868-21/usr/sbin/munin11:05:170
253499569,15cyclictest23345-21df08:30:130
253499569,14cyclictest5324-21ntpq09:25:220
253499568,17cyclictest7459-21/usr/sbin/munin11:40:250
253499568,15cyclictest32152-21/usr/sbin/munin11:10:140
253499567,16cyclictest16664-21/usr/sbin/munin10:10:180
253499565,25cyclictest26119-21mailstats10:45:250
2534995633,15cyclictest3898-21/usr/sbin/munin11:25:230
2534995632,16cyclictest10234-21/usr/sbin/munin11:50:190
2534995632,15cyclictest22453-21runrttasks10:30:350
2534995632,15cyclictest13755-21runrttasks07:52:050
2534995629,16cyclictest9045-21/usr/sbin/munin11:45:240
253499558,14cyclictest11306-21/usr/sbin/munin11:55:280
253499558,13cyclictest3915-21/usr/sbin/munin07:15:210
253499558,13cyclictest19076-21/usr/sbin/munin12:25:270
2534995527,17cyclictest9335-21/usr/sbin/munin07:35:210
253499547,13cyclictest21638-21/usr/sbin/munin12:35:320
2534995431,15cyclictest31326-21runrttasks09:00:210
2534995327,16cyclictest20609-21/usr/sbin/munin10:25:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional