You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-06 - 09:57

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 Thu Nov 06, 2025 00:44:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2615121410,3sleep026153-21latency_hist22:50:020
120721290,3chrt1205-21sshd23:18:550
1208421280,4chrt12082-21if_eth021:55:180
2375721170,3sleep023756-21interrupts22:40:160
1607991168,93cyclictest16715-21chrt22:12:410
1607991159,90cyclictest1705-21/usr/sbin/munin19:10:300
16079911532,72cyclictest6849-21/usr/sbin/munin21:35:130
16079911414,85cyclictest27604-21/usr/sbin/munin20:50:220
1607991138,91cyclictest15773-21/usr/sbin/munin00:15:170
16079911332,68cyclictest12272-21/usr/sbin/munin19:50:220
1607991129,88cyclictest17735-21threads20:10:290
1607991128,88cyclictest9652-21/usr/sbin/munin21:45:210
1607991119,89cyclictest9972-21wc19:40:260
1607991118,87cyclictest11980-21uname00:00:180
1607991117,92cyclictest17322-21memory22:15:210
16079911130,69cyclictest11059-21/usr/sbin/munin23:55:310
1607991109,89cyclictest16199-21ntpq20:05:210
1607991109,87cyclictest2797-21munin-run21:20:010
1607991108,89cyclictest15600-21seq22:09:090
1607991108,87cyclictest22189-21snmpd00:10:260
1607991107,91cyclictest5786-21ntp_states21:30:210
16079911030,70cyclictest10847-21/usr/sbin/munin21:50:170
16079911010,87cyclictest29163-21ntpq20:55:210
1607991098,88cyclictest13414-21cat22:00:180
1607991098,86cyclictest22449-21irqstats22:35:170
1607991098,86cyclictest10816-21df19:45:130
1607991098,85cyclictest10453-21ls23:55:010
16079910910,86cyclictest6548-21tr23:40:020
1607991089,86cyclictest29660-21chrt23:02:420
1607991088,88cyclictest4491-21awk21:25:220
1607991088,86cyclictest26462-21irqstats20:45:170
1607991087,89cyclictest30369-21ntp_states23:05:250
1607991079,83cyclictest13326-21/usr/sbin/munin19:55:150
1607991078,87cyclictest20001-21load20:20:170
1607991078,86cyclictest19874-21irqstats22:25:180
1607991078,86cyclictest19705-21sendmail-msp20:20:020
1607991078,86cyclictest13310-21/usr/sbin/munin00:05:170
1607991078,84cyclictest269-21runrttasks22:24:490
1607991077,87cyclictest5852-21awk19:25:210
1607991077,87cyclictest31571-21cat23:10:210
1607991077,86cyclictest21138-21runrttasks00:35:220
1607991077,72cyclictest15346-21sshd20:01:140
16079910731,65cyclictest7203-21/usr/sbin/munin19:30:240
16079910710,83cyclictest23990-21/usr/sbin/munin20:35:210
16079910710,82cyclictest25039-21/usr/sbin/munin20:40:190
1607991068,86cyclictest2583-21chrt23:24:250
1607991068,85cyclictest21192-21fw_packets20:25:170
1607991068,84cyclictest26355-21sort22:50:170
1607991067,87cyclictest4011-21date23:30:020
1607991067,86cyclictest8666-21timerwakeupswit21:40:290
1607991067,86cyclictest19468-21munin-run00:30:020
1607991067,84cyclictest27771-21chrt22:55:270
1607991067,83cyclictest31779-21ntp_states21:05:250
1607991066,87cyclictest30341-21irqstats21:00:170
16079910610,82cyclictest3282-21ntp_states19:15:230
1607991058,84cyclictest21201-21memory22:30:170
1607991058,83cyclictest4493-21/usr/sbin/munin19:20:170
1607991056,87cyclictest22447-21df20:30:130
1607991056,85cyclictest8099-21/usr/sbin/munin23:45:170
1607991047,85cyclictest177382sleep000:21:250
1607991047,84cyclictest384-21df_inode21:10:130
1607991047,83cyclictest3089-21wc21:20:170
1607991038,82cyclictest9106-21runrttasks19:38:170
1607991037,85cyclictest19732-21irqstats00:30:170
16079910321,70cyclictest4121-21df23:30:120
1607991026,85cyclictest6952-21ntp_states23:40:210
1607999610,72cyclictest1634-21chrt19:10:030
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional