You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-06-25 - 15:18

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 Jun 25, 2026 12:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2468816995242,7cyclictest1653682-21cups-browsed12:20:452
2468816995037,10cyclictest2558550-21switchtime10:35:432
2468816994938,8cyclictest2551467-21aten_r2power_fr10:25:202
2468815994944,3cyclictest0-21swapper/111:41:051
2468815994941,5cyclictest2511037-21/usr/sbin/munin09:20:011
2468814994923,17cyclictest151ktimers/012:30:280
2468816994840,4cyclictest0-21swapper/212:25:332
2468815994840,5cyclictest2529559-21munin-plugin-st09:50:011
2468814994838,7cyclictest2518414-21grep09:30:380
2468815994739,5cyclictest2548045-21latency_hist10:20:021
2468816994638,5cyclictest2618527-21ssh12:15:012
2468815994638,5cyclictest2584871-21latency_hist11:20:021
2468814994635,7cyclictest151ktimers/010:20:310
2468816994539,3cyclictest2597146-21kworker/u8:6-nfsiod11:41:052
2468814994511,5cyclictest0-21swapper/008:50:350
2468815994437,4cyclictest2489797-21cron08:20:011
2468815994435,6cyclictest1-21systemd12:15:021
2468814994419,20cyclictest2619552-21ssh12:15:350
2468815994336,4cyclictest2572538-21munin-run11:00:011
2468815994335,5cyclictest2594110-21latency_hist11:35:021
2468815994335,5cyclictest2541869-21ssh10:10:021
2468815994234,5cyclictest2628029-21/usr/sbin/munin12:30:191
2468815994233,5cyclictest485-21in:imuxsock12:05:001
2468815994233,5cyclictest485-21in:imuxsock12:05:001
246881499422,34cyclictest2508942-21ssh09:15:310
2468816994132,6cyclictest2621623-21systemd-run12:20:022
2468816994130,8cyclictest2538789-21idleruntime-cro10:05:012
2468815994132,5cyclictest2482320-21systemd-run07:55:011
2468815994132,5cyclictest2482320-21systemd-run07:55:011
246881499413,31cyclictest2582749-21ssh11:15:280
2468814994031,7cyclictest2580323-21unixbench_singl11:10:430
2468814994025,12cyclictest265-21systemd-journal07:45:010
2468816993931,5cyclictest2509452-21unixbench-2d09:15:422
2468816993931,4cyclictest0-21swapper/210:20:022
2468815993931,5cyclictest2600827-21fschecks_time11:45:231
2468815993931,5cyclictest2552606-21unixbench-2d10:25:431
2468815993931,5cyclictest1001-21mta-sts-daemon11:56:551
2468815993930,5cyclictest2554882-21kernelversion10:30:261
2468815993930,5cyclictest2554882-21kernelversion10:30:261
2468814993935,2cyclictest0-21swapper/011:20:390
246881499391,32cyclictest2545918-21ssh10:15:300
2468816993830,5cyclictest2609382-21munin-plugin-st12:00:012
2468815993833,2cyclictest0-21swapper/109:45:021
2468815993830,5cyclictest2590962-21awk11:30:011
2468815993830,5cyclictest2549592-21grep10:20:451
2468815993829,5cyclictest0-21swapper/110:50:371
2468815993828,7cyclictest1653682-21cups-browsed07:20:291
2468815993828,6cyclictest2520303-21true09:35:011
2468816993729,5cyclictest2532618-21latency_hist09:55:032
2468816993729,5cyclictest2515738-21tail09:25:442
2468814993730,4cyclictest2563977-21rm10:45:240
2468814993730,4cyclictest2523557-21latency_hist09:40:020
246881699363,29cyclictest2588877-21ssh11:25:302
246881599363,28cyclictest2595065-21ssh11:35:301
2468815993630,3cyclictest0-21swapper/109:35:321
2468815993629,4cyclictest0-21swapper/108:40:011
2468815993629,3cyclictest0-21swapper/109:25:281
2468815993628,5cyclictest2494302-21munin-run08:35:011
2468815993627,6cyclictest421-21dbus-daemon10:50:011
2468815993625,8cyclictest2496653-21ntp_kernel_err08:40:301
2468815993622,10cyclictest1653682-21cups-browsed09:11:311
2468814993627,7cyclictest2561297-21ntp_kernel_pll_10:40:320
2468814993624,10cyclictest2480820-21true07:50:010
2468814993623,7cyclictest12650irq/32-eth008:00:370
246881499361,31cyclictest665-21snmpd09:53:150
2468816993529,3cyclictest0-21swapper/211:05:292
2468816993527,5cyclictest2592286-21mailstats11:30:412
2468816993527,5cyclictest2520915-21fschecks_count09:35:232
2468816993525,8cyclictest2477832-21systemd-run07:40:012
246881699352,26cyclictest2604419-21ssh11:50:392
246881599354,27cyclictest2530609-21ssh09:50:311
2468815993529,3cyclictest0-21swapper/112:20:451
2468815993528,4cyclictest2455061-21kworker/u8:0-xprtiod07:15:011
2468815993528,3cyclictest0-21swapper/112:25:311
2468815993527,5cyclictest2501792-21systemctl09:00:011
2468815993526,6cyclictest420-21avahi-daemon09:24:551
2468815993526,6cyclictest265-21systemd-journal09:10:011
2468814993529,4cyclictest2517238-21latency_hist09:30:020
2468814993528,4cyclictest2533292-21grep09:55:250
2468814993528,4cyclictest0-21swapper/010:40:000
2468814993526,6cyclictest2497322-21systemd-run08:45:010
2468814993524,8cyclictest2551600-21cpu10:25:210
2468814993521,10cyclictest151ktimers/007:10:350
2468816993426,4cyclictest2612641-21latency_hist12:05:022
2468816993426,4cyclictest2612641-21latency_hist12:05:022
2468816993425,7cyclictest2474126-21needreboot07:25:282
2468816993424,5cyclictest0-21swapper/209:10:302
2468815993427,3cyclictest0-21swapper/111:05:191
2468814993428,4cyclictest2529559-21grep09:50:010
2468814993427,4cyclictest2603412-21latency_hist11:50:030
2468814993426,6cyclictest2500803-21fschecks_count08:55:240
2468814993425,4cyclictest0-21swapper/012:25:300
2468814993413,14cyclictest12650irq/32-eth012:10:370
2468816993327,3cyclictest0-21swapper/209:20:332
2468816993326,3cyclictest0-21swapper/209:40:402
2468816993325,3cyclictest0-21swapper/209:45:292
246881699332,24cyclictest1653682-21cups-browsed11:45:302
246881599333,26cyclictest2558244-21ssh10:35:341
246881599333,25cyclictest2533760-21ssh09:55:361
246881599333,23cyclictest2536852-21ssh10:00:361
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional