You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-03 - 01:29

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 Thu Jul 02, 2026 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3039535996050,7cyclictest3156620-40mandb11:21:521
3039534995145,4cyclictest3081698-21ssh09:20:010
3039536994836,5cyclictest0-21swapper/207:45:362
3039535994739,5cyclictest3075580-21idleruntime-cro09:10:011
3039535994739,5cyclictest3039540-21systemd-run07:10:021
3039536994535,5cyclictest0-21swapper/210:10:412
303953699442,31cyclictest3167746-21ssh11:40:352
3039535994436,5cyclictest3100154-21systemd-run09:50:021
3039535994436,5cyclictest3048556-21systemd-run07:40:011
3039534994436,6cyclictest3182427-21/usr/sbin/munin12:05:280
3039534994431,11cyclictest421-21dbus-daemon11:45:340
3039536994333,6cyclictest265-21systemd-journal09:55:472
3039536994331,9cyclictest3161946-21mailstats11:30:422
3039535994335,5cyclictest3106208-21ssh10:00:001
3039535994335,3cyclictest0-21swapper/111:05:401
3039535994335,3cyclictest0-21swapper/111:05:401
3039536994234,5cyclictest3160634-21cut11:30:012
3039535994234,5cyclictest3158284-21fschecks_time11:25:261
3039534994229,11cyclictest3156620-40mandb11:21:530
3039536994133,5cyclictest3178715-21ssh12:00:012
3039536994133,5cyclictest3109287-21ls10:05:012
3039536994131,6cyclictest421-21dbus-daemon12:25:022
3039536994131,6cyclictest421-21dbus-daemon12:25:022
3039535994133,5cyclictest3056974-21sshd08:05:351
3039535994133,5cyclictest3056974-21sshd08:05:351
3039535994132,6cyclictest1003-21mta-sts-daemon09:45:021
3039534994132,6cyclictest12650irq/32-eth011:10:380
3039536994031,5cyclictest3101033-21missed_timers09:50:302
3039536994031,5cyclictest3101033-21missed_timers09:50:302
3039535994033,4cyclictest3166663-21munin-run11:40:011
3039535994030,5cyclictest3089307-21wc09:30:441
3039534994030,7cyclictest3096355-21sshd09:42:460
3039536993931,5cyclictest3109809-21aten_r2power_vo10:05:272
3039536993929,8cyclictest3166673-21ssh11:40:012
303953699392,31cyclictest3140663-21ssh10:55:392
3039535993928,8cyclictest3188616-21latency12:15:271
3039534993928,8cyclictest12650irq/32-eth009:35:340
3039536993830,5cyclictest1-21systemd10:40:022
3039535993830,6cyclictest3202936-21cat12:40:021
3039535993822,3cyclictest171rcu_preempt08:00:431
3039535993822,3cyclictest171rcu_preempt08:00:431
3039534993832,4cyclictest3066568-21idleruntime-cro08:40:010
3039536993729,5cyclictest3151575-21cron11:15:002
3039536993729,5cyclictest1002-21mta-sts-daemon10:53:372
3039536993727,7cyclictest694-21cron12:35:002
3039536993727,7cyclictest694-21cron12:35:002
3039535993729,5cyclictest3175873-21latency_hist11:55:031
3039535993726,8cyclictest3086133-21mailstats09:25:441
3039535993717,12cyclictest3125521-21ntp_kernel_err10:30:321
3039534993729,5cyclictest623-21sshd11:01:040
3039534993729,5cyclictest623-21sshd11:01:040
3039534993729,5cyclictest2244171-21cups-browsed12:04:100
3039534993710,20cyclictest3131652-21ssh10:40:390
3039536993629,4cyclictest3145568-21cron11:05:002
3039536993629,4cyclictest3145568-21cron11:05:002
3039536993628,5cyclictest3094019-21sendmail09:40:012
3039536993628,5cyclictest1002-21mta-sts-daemon08:35:242
3039536993627,6cyclictest265-21systemd-journal09:30:022
3039536993627,5cyclictest3060564-21sendmail08:20:002
3039535993627,5cyclictest420-21avahi-daemon10:13:101
3039535993615,5cyclictest265-21systemd-journal11:03:471
3039535993615,5cyclictest265-21systemd-journal11:03:471
303953599360,5cyclictest3167846-21ssh11:40:391
3039534993629,5cyclictest3053794-21sshd07:55:290
3039536993530,2cyclictest0-21swapper/212:05:012
3039536993529,3cyclictest0-21swapper/212:40:002
3039536993527,5cyclictest3124642-21latency_hist10:30:022
3039536993527,5cyclictest3072556-21grep09:00:012
3039536993526,6cyclictest420-21avahi-daemon11:15:242
3039536993524,7cyclictest420-21avahi-daemon12:26:252
3039536993524,7cyclictest420-21avahi-daemon12:26:252
3039535993530,2cyclictest0-21swapper/110:10:011
3039535993528,4cyclictest3142547-21grep11:00:001
3039535993528,4cyclictest3079177-21cpu09:15:251
3039535993527,5cyclictest439-21systemd-logind09:00:011
3039535993526,6cyclictest3172722-21true11:50:011
3039535993519,3cyclictest171rcu_preempt10:15:241
3039535993517,13cyclictest265-21systemd-journal10:50:021
303953499358,5cyclictest14-21ksoftirqd/007:45:340
303953499357,8cyclictest3056986-21ntpq08:05:360
303953499357,8cyclictest3056986-21ntpq08:05:360
3039534993529,3cyclictest0-21swapper/011:25:450
3039534993528,3cyclictest0-21swapper/009:20:370
3039534993525,7cyclictest3148591-21grep11:10:010
3039534993525,7cyclictest3148591-21grep11:10:010
3039534993522,8cyclictest12650irq/32-eth007:50:360
3039536993425,5cyclictest3171297-21unixbench_multi11:45:472
3039535993428,3cyclictest0-21swapper/110:25:011
3039535993427,4cyclictest3191849-21ntp_kernel_pll_12:20:341
3039535993427,4cyclictest3191849-21ntp_kernel_pll_12:20:341
3039535993425,6cyclictest421-21dbus-daemon12:00:401
3039535993420,3cyclictest171rcu_preempt12:10:321
3039534993430,2cyclictest0-21swapper/012:20:000
3039534993428,4cyclictest3124859-21/usr/sbin/munin10:30:340
3039534993427,4cyclictest3093279-21kworker/u8:7-rpciod10:10:470
3039534993424,7cyclictest0-21swapper/009:10:420
3039534993411,6cyclictest14-21ksoftirqd/010:20:380
3039536993327,3cyclictest0-21swapper/208:00:012
3039536993326,4cyclictest3121489-21cron10:25:012
3039536993326,4cyclictest3100153-21systemctl09:50:022
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional