You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-16 - 02:08

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 Tue Sep 16, 2025 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
682022940,3sleep06821-21/usr/sbin/munin21:25:230
396821340,2sleep03969-21cut19:10:020
2348521320,2sleep023483-21entropy20:25:150
1573921310,4chrt15740-21/usr/sbin/munin22:00:210
1101121300,2sleep011012-21timerandwakeup19:35:280
3265821270,2sleep032657-21latency21:00:200
1698021190,2sleep016979-21ntp_kernel_err00:10:230
2741321180,2sleep027416-21sed22:45:200
274892980,3sleep027512-21grep20:40:200
247462978,13sleep024750-21df20:30:100
327142945,13sleep0314-21/usr/sbin/munin23:05:280
315942940,2sleep031596-21ls23:00:290
104742890,3sleep010478-21wc23:45:190
82062850,3sleep08257-21proc_pri19:25:260
40012846,64sleep04009-21memory23:20:200
169932815,11sleep017006-21irqstats22:05:160
3913996610,19cyclictest18259-21ntpq00:15:210
3913996534,21cyclictest14314-21/usr/sbin/munin21:55:150
3913996236,16cyclictest7857-21/usr/sbin/munin21:30:130
3913996223,13cyclictest22993-21seq22:28:240
3913996126,12cyclictest16648-21ls00:10:010
391399609,18cyclictest19434-21/usr/sbin/munin22:15:220
3913996035,16cyclictest9175-21/usr/sbin/munin21:35:150
3913996010,17cyclictest20609-21/usr/sbin/munin00:25:110
3913996010,16cyclictest31336-21irqstats20:55:170
391399599,23cyclictest29649-21idleruntime-cro22:55:010
391399598,18cyclictest22302-21grep00:30:260
3913995910,17cyclictest23741-21awk22:30:260
391399589,20cyclictest13021-21memory23:55:180
391399589,16cyclictest8488-21sshd23:37:170
391399589,15cyclictest19532-21/usr/sbin/munin20:10:310
391399588,17cyclictest23182-21/usr/sbin/munin00:35:300
3913995811,17cyclictest9040-21df_inode23:40:150
3913995811,17cyclictest11546-21/usr/sbin/munin23:50:190
3913995811,16cyclictest5294-21df21:20:120
3913995810,15cyclictest1726-21grep23:10:300
391399579,15cyclictest16831-21sendmail-msp20:00:010
391399579,15cyclictest13752-21seq21:51:570
391399578,18cyclictest1334-21/usr/sbin/munin21:05:240
391399578,17cyclictest26221-21runrttasks22:40:250
391399578,15cyclictest5492-21/usr/sbin/munin19:15:190
391399577,17cyclictest4013-21/usr/sbin/munin19:10:290
3913995734,16cyclictest14289-21irqstats00:00:180
3913995733,15cyclictest13311-21/usr/sbin/munin19:45:200
3913995730,19cyclictest0-21swapper20:01:420
3913995723,21cyclictest24906-21ntpq22:35:250
3913995714,13cyclictest28719-21/usr/sbin/munin20:45:160
3913995710,19cyclictest18450-21chrt22:10:250
391399569,34cyclictest22189-21snmpd20:52:460
391399569,15cyclictest3671-21systemctl23:20:010
391399569,15cyclictest11976-21ntp_states21:45:220
391399568,16cyclictest20751-21/usr/sbin/munin22:20:270
391399568,15cyclictest29773-21/usr/sbin/munin22:55:270
391399568,14cyclictest6379-21/usr/sbin/munin23:30:130
391399567,18cyclictest3927-21/usr/sbin/munin21:15:190
391399567,15cyclictest10406-21/usr/sbin/munin21:40:210
391399566,16cyclictest6807-21/usr/sbin/munin19:20:190
3913995625,21cyclictest9466-21ntp_offset19:30:220
3913995610,18cyclictest11973-21memory19:40:200
391399559,18cyclictest22276-21irqstats20:20:170
391399558,17cyclictest19462-21sshd00:20:170
391399558,17cyclictest19147-21sshd20:08:000
3913995533,14cyclictest20872-21/usr/sbin/munin20:15:140
3913995531,16cyclictest14539-21/usr/sbin/munin19:50:170
3913995525,16cyclictest5164-21df_inode23:25:160
391399548,15cyclictest2632-21/usr/sbin/munin21:10:270
391399548,14cyclictest25988-21/usr/sbin/munin20:35:260
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional