You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-18 - 03:13

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 Tue Aug 18, 2026 00:44:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1435223040,2sleep014353-21ntp_offset23:40:200
138021260,4chrt1378-21df20:45:120
1600121180,3chrt16000-21ntpq19:35:240
2686821110,4chrt26869-21latency_hist00:30:010
1175421020,3sleep011797-21if_eth021:25:170
3128321010,4sleep031333-21irqstats20:35:160
875121000,4sleep08770-21sendmail23:20:010
211202970,3sleep021118-21fgrep22:00:260
165262930,4sleep016519-21latency_hist23:50:010
51912920,3sleep05217-21memory23:05:170
66132894,8sleep06641-21open_inodes23:10:270
124432845,8sleep012446-21/usr/sbin/munin19:20:290
281222834,8sleep028153-21latency_hist00:35:010
229642820,3sleep022998-21latency_hist00:15:010
145632820,4sleep014602-21/usr/sbin/munin19:30:180
195332795,62sleep019554-21open_inodes00:00:240
236772760,3sleep023678-21processes22:10:240
120772755,58sleep012079-21users23:30:300
800427320,30sleep08009-21df19:05:150
131962734,57sleep013202-21df19:25:150
226642690,2chrt22666-21switchtime20:00:280
181562670,2sleep018176-21modprobe19:45:010
9151996136,15cyclictest28388-21/usr/sbin/munin00:35:160
915199609,18cyclictest27211-21/usr/sbin/munin22:25:130
9151996015,15cyclictest26189-21runrttasks22:20:250
915199599,19cyclictest19972-21runrttasks19:50:250
915199599,17cyclictest23460-21egrep20:05:110
9151995929,22cyclictest209-21dbus-daemon19:20:000
915199589,16cyclictest24855-21ntp_states22:15:230
915199588,17cyclictest27347-21/usr/sbin/munin20:20:160
9151995835,15cyclictest26426-21/usr/sbin/munin20:15:270
9151995834,15cyclictest28693-21/usr/sbin/munin20:25:150
9151995815,16cyclictest21039-21ls00:05:300
9151995810,19cyclictest22138-21/usr/sbin/munin22:05:160
9151995810,16cyclictest9250-21/usr/sbin/munin19:10:160
915199579,14cyclictest18799-21sshd23:57:440
915199578,17cyclictest10202-21seq23:25:120
915199577,17cyclictest32505-21/usr/sbin/munin20:40:200
915199576,16cyclictest32325-21/usr/sbin/munin22:45:110
9151995734,15cyclictest3531-21runrttasks22:59:360
9151995734,15cyclictest23271-21/usr/sbin/munin00:15:170
9151995732,16cyclictest8186-21/usr/sbin/munin21:10:230
9151995732,16cyclictest13064-21sshd23:35:230
9151995711,15cyclictest13045-21/usr/sbin/munin21:30:130
9151995710,16cyclictest18636-21/usr/sbin/munin19:45:240
915199569,16cyclictest2612-21/usr/sbin/munin20:50:220
915199569,15cyclictest31043-21/usr/sbin/munin22:40:170
915199569,14cyclictest29828-21/usr/sbin/munin22:35:150
915199569,14cyclictest288-21snmpd21:56:300
915199568,16cyclictest30358-21awk20:30:280
915199568,16cyclictest1147-21/usr/sbin/munin22:50:200
915199568,15cyclictest10393-21/usr/sbin/munin21:20:180
915199568,14cyclictest18116-21/usr/sbin/munin21:50:250
9151995632,17cyclictest9697-21runrttasks21:15:370
9151995632,15cyclictest24509-21/usr/sbin/munin00:20:160
9151995632,15cyclictest14355-21/usr/sbin/munin21:35:170
9151995610,18cyclictest25142-21ps20:10:270
9151995610,16cyclictest15992-21mailstats21:40:270
9151995610,15cyclictest22028-21munin-run20:00:010
915199559,15cyclictest6637-21irqstats21:05:180
915199558,16cyclictest3893-21/usr/sbin/munin20:55:160
915199558,13cyclictest9688-21seq23:21:510
9151995530,16cyclictest29509-21runrttasks22:34:170
9151995529,17cyclictest5646-21/usr/sbin/munin21:00:280
9151995514,14cyclictest17836-21ls23:55:010
9151995510,15cyclictest17306-21/usr/sbin/munin21:45:280
915199546,14cyclictest3742-21/usr/sbin/munin23:00:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional