You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-03 - 19:48

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 50 highest latencies:
System rack4slot6s.osadl.org (updated Wed Dec 03, 2025 12:44:01)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2305521650,3chrt22719-21/usr/sbin/munin10:35:250
2931421540,2sleep029315-21if_eth011:00:160
2061121260,2sleep020609-21open_inodes08:20:270
863321200,2sleep08632-21if_eth009:40:150
2073991167,95cyclictest23003-21irqstats08:30:170
2073991159,90cyclictest6330-21cat11:35:280
2073991157,92cyclictest20431-21/usr/sbin/munin10:25:200
2073991149,90cyclictest3458-21/usr/sbin/munin07:15:330
2073991147,92cyclictest5834-21latency_hist09:30:000
20739911410,89cyclictest30763-21irqstats09:00:160
2073991139,91cyclictest22189-21snmpd12:20:160
2073991137,92cyclictest27193-21uptime10:50:290
20739911316,85cyclictest21581-21ntpq12:35:250
2073991129,91cyclictest14361-21chrt12:07:170
2073991129,88cyclictest16137-21munin-run10:10:010
2073991128,89cyclictest6116-21df07:25:130
2073991128,89cyclictest22189-21snmpd07:59:210
20739911211,88cyclictest28164-21ntp_states10:55:210
2073991119,89cyclictest32053-21ntp_states11:10:200
2073991118,90cyclictest16399-21ntp_states12:15:250
20739911129,72cyclictest11894-21runrttasks11:58:240
2073991107,89cyclictest13563-21modprobe10:00:010
20739911027,71cyclictest21669-21/usr/sbin/munin08:25:140
20739911011,87cyclictest3212-21munin-run09:20:000
2073991098,88cyclictest5993-21sort07:25:010
2073991098,87cyclictest25518-21chrt08:40:120
2073991097,88cyclictest32195-21ntp_states09:05:200
20739910926,72cyclictest6179-21awk09:30:210
20739910910,87cyclictest14850-21munin-run10:05:000
2073991089,87cyclictest4630-21irqstats11:30:170
2073991089,73cyclictest8243-21latency_hist11:45:010
2073991088,87cyclictest10987-21date09:50:010
2073991087,89cyclictest22189-21snmpd07:39:170
2073991087,88cyclictest18511-21seq08:12:210
2073991087,88cyclictest108-21systemd-journal07:49:450
2073991087,87cyclictest8776-21sendmail_mailqu11:45:280
2073991087,86cyclictest10929-21chrt07:43:400
2073991087,85cyclictest18170-21seq10:15:370
2073991087,11cyclictest30478-21munin-run09:00:010
2073991086,88cyclictest748-21/usr/sbin/munin09:10:170
20739910810,86cyclictest24427-21ntp_states08:35:210
20739910810,86cyclictest24081-21df10:40:130
20739910810,84cyclictest16404-21irqstats10:10:160
2073991078,86cyclictest19250-21ntp_states08:15:200
2073991078,86cyclictest16452-21df_inode08:05:120
2073991078,85cyclictest25314-21/usr/sbin/munin10:45:280
2073991078,84cyclictest19168-21readlink12:25:290
2073991078,71cyclictest26881-21seq08:45:170
2073991077,87cyclictest2387-21mailstats11:20:280
2073991077,75cyclictest15158-21runrttasks08:00:150
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional