You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-09-05 - 12:55

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 #2, slot #7

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.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack2slot7s.osadl.org (updated Sat Sep 05, 2026 00:42:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2897113995347,2cyclictest0-21swapper/100:20:011
2897112995348,3cyclictest0-21swapper/021:36:050
2897113995139,4cyclictest0-21swapper/120:06:101
2897112995141,7cyclictest2933259-21latency_hist21:10:020
2897113994939,7cyclictest421-21dbus-daemon19:31:091
2897114994736,7cyclictest3036976-21munin-run00:00:012
289711499472,35cyclictest2934412-21ssh21:11:122
2897113994724,3cyclictest171rcu_preempt23:16:031
2897112994632,4cyclictest2907661-21cut19:45:010
2897114994536,6cyclictest3022396-21aten_r2power_po23:35:562
2897112994525,10cyclictest12650irq/32-eth000:01:080
2897114994333,7cyclictest2910655-21sh19:55:012
2897113994335,5cyclictest3004266-21tr23:05:591
2897114994235,3cyclictest0-21swapper/223:20:012
2897113994233,6cyclictest3046369-21latency_hist00:15:031
2897112994232,8cyclictest2990976-21sh22:44:170
2897112994227,12cyclictest3024783-21ssh23:40:010
2897114994132,5cyclictest2982280-21latency_hist22:30:022
2897114994132,5cyclictest2982280-21latency_hist22:30:022
2897113994132,6cyclictest2909163-21systemd-run19:50:011
2897113994132,6cyclictest2909163-21systemd-run19:50:011
2897112994135,4cyclictest2957674-21latency_hist21:50:010
2897114994034,3cyclictest0-21swapper/222:56:112
2897113994032,5cyclictest3049870-21aten_r2power_fr00:20:581
2897113994032,5cyclictest2975402-21ssh22:18:161
2897112994021,14cyclictest151ktimers/022:16:060
2897112994019,4cyclictest171rcu_preempt23:56:100
2897112994014,19cyclictest3050645-21rm00:21:150
2897114993931,5cyclictest3046162-21cron00:15:012
2897114993931,5cyclictest2922668-21systemd-run20:35:012
289711499392,31cyclictest443-21gpm20:51:072
2897113993931,5cyclictest2919685-21systemd-run20:25:021
2897113993930,6cyclictest421-21dbus-daemon23:55:021
2897113993930,5cyclictest1003-21mta-sts-daemon21:19:231
2897112993931,5cyclictest2901530-21head19:21:180
2897112993929,7cyclictest2958177-21/usr/sbin/munin21:51:100
2897114993830,5cyclictest2991227-21munin-run22:45:012
2897113993831,4cyclictest0-21swapper/100:40:011
289711399382,29cyclictest2977344-21ssh22:21:131
289711399382,29cyclictest2977344-21ssh22:21:131
2897112993833,3cyclictest12650irq/32-eth023:11:060
2897114993730,4cyclictest2904638-21cron19:35:012
2897114993729,5cyclictest3028655-21sort23:45:592
2897114993728,5cyclictest2988346-21grep22:40:022
2897114993725,9cyclictest2918149-21/usr/sbin/munin20:20:022
2897113993729,5cyclictest3027915-21latency_hist23:45:021
2897114993630,3cyclictest0-21swapper/222:31:082
2897114993628,4cyclictest1003-21mta-sts-daemon23:22:422
2897114993626,7cyclictest2942373-21cut21:25:022
289711499362,25cyclictest3032259-21ssh23:51:122
2897113993628,5cyclictest3036983-21idleruntime-cro00:00:011
2897113993627,6cyclictest2956145-21mailstats21:46:161
2897113993627,6cyclictest1186442-21cups-browsed22:00:571
2897113993627,5cyclictest3043130-21sh00:10:011
2897113993626,7cyclictest2941020-21timerwakeupswit21:21:181
2897113993623,5cyclictest2998389-21missed_timers22:56:031
2897112993630,3cyclictest0-21swapper/023:41:100
2897112993628,5cyclictest420-21avahi-daemon21:33:580
2897112993627,6cyclictest1186442-21cups-browsed20:01:020
2897112993625,7cyclictest2939277-21munin-run21:20:010
2897112993616,16cyclictest0-21swapper/000:10:020
2897112993611,8cyclictest171rcu_preempt21:26:070
2897114993530,2cyclictest0-21swapper/223:05:012
2897114993530,2cyclictest0-21swapper/200:36:162
2897114993529,3cyclictest0-21swapper/223:30:012
2897114993528,4cyclictest0-21swapper/221:41:102
2897113993527,4cyclictest0-21swapper/123:11:061
2897113993526,5cyclictest2918016-21unixbench_multi20:16:161
289711399351,3cyclictest171rcu_preempt00:31:101
289711399351,3cyclictest171rcu_preempt00:31:101
2897112993529,4cyclictest2906178-21systemd-run19:40:010
2897112993529,3cyclictest0-21swapper/020:11:080
2897112993527,5cyclictest1-21systemd20:40:010
2897114993428,3cyclictest0-21swapper/219:30:012
2897114993427,4cyclictest3055362-21systemd-run00:30:012
2897114993427,4cyclictest3055362-21systemd-run00:30:012
2897114993426,5cyclictest3058545-21latency_hist00:35:022
2897114993426,5cyclictest3058545-21latency_hist00:35:022
2897114993426,5cyclictest2906132-21cron19:40:012
2897114993426,5cyclictest1186442-21cups-browsed21:53:152
2897114993424,7cyclictest2937751-21switchtime21:16:172
2897114993424,6cyclictest3006599-21latency_hist23:10:022
2897113993426,5cyclictest2934978-21grep21:11:231
2897112993428,4cyclictest3001709-21/usr/sbin/munin23:01:120
2897112993428,3cyclictest0-21swapper/000:16:160
2897112993427,4cyclictest2922719-21latency_hist20:35:020
2897112993425,6cyclictest2953302-21timerwakeupswit21:41:160
289711299342,27cyclictest2925453-21sed20:41:170
289711299342,26cyclictest2986400-21ssh22:36:090
2897112993420,4cyclictest2904647-21munin-plugin-st19:35:010
289711299341,29cyclictest2998529-21ntpq22:56:070
289711499334,15cyclictest2974237-21ssh22:16:112
2897114993326,4cyclictest1003-21mta-sts-daemon00:24:592
2897114993326,4cyclictest1002-21mta-sts-daemon23:42:372
2897114993325,6cyclictest0-21swapper/222:00:022
2897114993325,6cyclictest0-21swapper/222:00:022
2897114993325,5cyclictest2910942-21aten_r2power_en19:55:562
2897114993325,5cyclictest1186442-21cups-browsed21:47:002
2897113993327,3cyclictest0-21swapper/120:46:121
2897113993326,4cyclictest2930016-21tail20:56:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional