You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-26 - 08:44

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 Sun Jul 26, 2026 00:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1597121900,4chrt15974-21open_inodes00:15:260
1612521330,4chrt16123-21ntp_states22:10:230
2393321250,3chrt288-21snmpd20:35:210
353621210,3sleep03537-21who21:20:320
1360121180,3chrt13599-21threads00:05:300
2998921140,2sleep029986-21cat23:05:020
1625821030,4sleep016284-21/usr/sbin/munin20:05:220
69312990,4sleep06940-21cat21:35:180
87462966,12sleep08822-21timerwakeupswit19:35:280
80552960,4sleep08058-21uname23:45:180
116772955,13sleep011644-21latency_hist00:00:030
201102945,12sleep020155-21mailstats22:25:270
200342940,3sleep020045-21wc20:20:180
74682910,3sleep07469-21cat19:30:260
187382910,3sleep018812-21ls00:25:300
266212890,4sleep026626-21sshd20:45:240
118312887,66sleep011821-21latency_hist21:55:010
182672870,4sleep018284-21cron22:20:010
81532865,10sleep08157-21df_inode21:40:140
307142840,3sleep030716-21sort21:00:280
45082836,61sleep04536-21irqstats19:20:160
42212837,63sleep04271-21df21:25:120
217242835,10sleep021764-21users20:25:300
289502816,62sleep028956-21/usr/sbin/munin20:55:140
33742775,61sleep03387-21open_files19:15:250
118522770,3sleep011865-21/usr/sbin/munin00:00:160
6192764,60sleep0623-21ntpq21:10:240
179322746,57sleep0288-21snmpd00:23:300
119892740,2sleep011991-21modprobe19:50:000
75827319,32sleep0769-21ntp_states19:05:200
322222673,8sleep00-21swapper21:06:290
1695995935,15cyclictest7039-21/usr/sbin/munin23:40:250
1695995911,16cyclictest12137-21/usr/sbin/munin21:55:180
1695995910,18cyclictest3318-21/usr/sbin/munin23:25:260
169599589,18cyclictest13257-21/usr/sbin/munin22:00:280
169599589,18cyclictest12117-21/usr/sbin/munin19:50:260
169599589,15cyclictest21002-21/usr/sbin/munin22:30:230
169599588,17cyclictest15011-21ntp_states20:00:250
169599588,15cyclictest10060-21/usr/sbin/munin19:40:410
1695995834,14cyclictest1889-21/usr/sbin/munin21:15:220
1695995832,16cyclictest1799-21runrttasks23:20:240
1695995810,16cyclictest9253-21df_inode23:50:130
169599579,16cyclictest1844-21df19:10:120
169599578,18cyclictest26487-21/usr/sbin/munin22:50:260
169599577,17cyclictest307-21munin-node21:45:120
1695995733,16cyclictest13593-21/usr/sbin/munin19:55:190
1695995732,16cyclictest4393-21/usr/sbin/munin23:30:250
1695995732,14cyclictest5693-21/usr/sbin/munin21:30:190
169599569,18cyclictest24429-21sshd22:42:250
169599568,16cyclictest23454-21munin-run22:40:000
169599568,16cyclictest20817-21/usr/sbin/munin00:35:220
169599568,15cyclictest22728-21tr20:30:220
169599568,15cyclictest14524-21/usr/sbin/munin00:10:160
169599568,14cyclictest25049-21/usr/sbin/munin20:40:280
1695995633,16cyclictest19772-21runrttasks20:20:010
169599559,14cyclictest18434-21/usr/sbin/munin22:20:160
169599559,12cyclictest5373-21df23:35:130
169599557,16cyclictest17288-21/usr/sbin/munin20:10:180
169599557,15cyclictest30041-21/usr/sbin/munin23:05:200
169599557,14cyclictest25065-21load22:45:190
1695995532,14cyclictest6091-21/usr/sbin/munin19:25:260
1695995511,17cyclictest32559-21cat23:15:020
169599548,14cyclictest27520-21/usr/sbin/munin22:55:140
169599547,15cyclictest27615-21/usr/sbin/munin20:50:150
1695995432,15cyclictest15239-21runrttasks22:06:120
169599538,14cyclictest32611-21/usr/sbin/munin23:15:270
169599537,14cyclictest19534-21/usr/sbin/munin00:30:220
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional