You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-08 - 07:03

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 highest latencies:
System rack4slot6s.osadl.org (updated Sat Aug 08, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1862922460,2sleep018633-21processes22:00:250
541122430,3sleep05409-21ntpq23:15:190
1146721410,2sleep011470-21sh23:40:000
2338621300,3sleep023385-21cat00:25:160
297721210,3chrt2978-21/usr/sbin/munin23:05:250
1956721170,3chrt19566-21date20:00:010
1167521170,4chrt11674-21sed21:35:010
3157321150,4chrt31574-21/usr/sbin/munin20:45:190
809421040,4sleep08113-21/usr/sbin/munin19:15:160
2641321000,3sleep026442-21ntpq20:25:210
66252930,3sleep06613-21latency_hist19:10:010
124682930,3sleep012470-21ls19:30:270
234982880,4sleep023539-21if_eth022:20:160
227482830,2sleep022746-21grep20:10:260
222582770,2sleep022255-21cat22:15:170
6641996739,19cyclictest10673-21/usr/sbin/munin19:25:110
6641996542,13cyclictest26191-21/usr/sbin/munin00:35:260
6641996540,13cyclictest7607-21seq19:12:380
6641996337,13cyclictest18360-21runrttasks00:05:220
664199629,18cyclictest16778-21/usr/sbin/munin00:00:210
6641996238,14cyclictest7991-21df_inode21:20:140
6641996236,14cyclictest19536-21memory00:10:170
6641996235,15cyclictest9993-21sshd21:26:580
6641996234,15cyclictest1431-21/usr/sbin/munin20:55:140
6641996234,14cyclictest14830-21/usr/sbin/munin19:40:220
6641996233,18cyclictest5038-21latency_hist23:15:010
6641996221,17cyclictest30179-21open_inodes22:45:240
103582625,7sleep00-21swapper19:23:530
6641996137,16cyclictest16718-21runrttasks19:48:110
6641996136,15cyclictest14098-21sort23:50:010
6641996136,15cyclictest12027-21/usr/sbin/munin23:40:250
6641996135,15cyclictest17664-21/usr/sbin/munin19:50:290
6641996135,15cyclictest14822-21runrttasks23:50:450
6641996132,17cyclictest31263-21latency_hist20:45:020
6641996037,13cyclictest4092-21df_inode21:05:140
6641996035,15cyclictest27475-21/usr/sbin/munin22:35:170
6641996035,15cyclictest24850-21/usr/sbin/munin00:30:250
6641996035,15cyclictest21042-21/usr/sbin/munin00:15:250
6641996035,15cyclictest13024-21cat21:40:020
6641996034,15cyclictest27855-21wc20:30:260
6641996029,18cyclictest24698-21/usr/sbin/munin22:25:170
6641996026,21cyclictest18195-21sort22:00:020
664199599,17cyclictest28578-21/usr/sbin/munin22:40:140
664199597,20cyclictest7736-21/usr/sbin/munin23:25:190
6641995935,14cyclictest7283-21chrt23:22:180
6641995935,14cyclictest21781-21runrttasks20:06:580
6641995934,16cyclictest25131-21/usr/sbin/munin20:20:190
6641995934,15cyclictest32720-21ntp_states22:55:210
6641995934,15cyclictest13238-21/usr/sbin/munin19:35:110
6641995933,15cyclictest31849-21chrt22:51:170
6641995833,15cyclictest3362-21chrt21:00:380
6641995832,17cyclictest6664-21/usr/sbin/munin21:15:120
664199578,15cyclictest9308-21ntp_states23:30:200
664199577,36cyclictest19535-21/usr/sbin/munin22:05:200
6641995734,15cyclictest16119-21/usr/sbin/munin21:50:260
6641995733,13cyclictest19953-21ntp_states20:00:220
6641995732,15cyclictest13275-21runrttasks21:40:170
6641995732,14cyclictest14963-21users21:45:300
6641995731,16cyclictest22280-21/usr/sbin/munin00:20:240
664199569,17cyclictest288-21snmpd22:10:430
664199567,17cyclictest25983-21/usr/sbin/munin22:30:130
6641995634,14cyclictest29021-21ntp_states20:35:220
6641995633,13cyclictest32603-21/usr/sbin/munin20:50:140
6641995610,14cyclictest15953-21ls23:55:260
664199558,15cyclictest23692-21/usr/sbin/munin20:15:170
6641995521,21cyclictest1578-21runrttasks23:00:230
6641995422,22cyclictest5318-21/usr/sbin/munin21:10:160
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional