You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-04 - 14:21
OSADL QA Farm

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 system in rack #e, 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.
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 50 highest latencies:
System rackeslot6.osadl.org (updated Sat Jul 04, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
247147599153113,29cyclictest2517000-21latency_hist21:30:011
247147599135125,7cyclictest2522044-21latency_hist21:45:011
247147599132121,8cyclictest2533198-21latency_hist22:20:001
247147599131124,4cyclictest2528416-21latency_hist22:05:011
247147599129105,21cyclictest2567208-21latency_hist00:05:011
247147399126121,4cyclictest2527531-21kworker/u8:1+events_unbound22:00:230
2471473991201,115cyclictest1-21systemd21:55:010
247147399118113,4cyclictest2475893-21kworker/u8:4+events_unbound19:40:240
247147399117112,4cyclictest2535836-21kworker/u8:2+events_unbound22:25:230
247147399117112,4cyclictest2474008-21kworker/u8:1+events_unbound19:20:250
247147399113108,4cyclictest2481505-21kworker/u8:0+events_unbound20:00:230
247147399112106,4cyclictest2569130-21kworker/u8:2+events_unbound00:20:200
247147399110104,4cyclictest2544363-21kworker/u8:3+events_unbound23:20:230
247147399110104,4cyclictest2527531-21kworker/u8:1+events_unbound22:35:230
247147599109101,5cyclictest2499456-21kworker/u8:2+events_unbound20:35:241
247147399109104,4cyclictest2533435-21kworker/u8:0+events_unbound22:20:230
24714759910896,8cyclictest2499456-21kworker/u8:2+flush-179:020:45:211
24714739910797,3cyclictest2519786-21kworker/u8:1+events_unbound21:35:230
24714739910796,9cyclictest1213033-21systemd-journal00:04:000
24714759910696,7cyclictest2527531-21kworker/u8:1+flush-179:023:00:191
247147399105101,3cyclictest2553881-21kworker/u8:0+events_unbound00:30:140
24714759910491,9cyclictest2491263-21latency_hist20:10:001
24714739910298,3cyclictest2499456-21kworker/u8:2+events_unbound20:55:250
24714739910293,6cyclictest2558919-21latency_hist23:40:010
24714739910291,9cyclictest2496847-21diskstats20:25:150
24714759910193,6cyclictest2481505-21kworker/u8:0+events_unbound19:50:011
24714759910190,8cyclictest2541156-21latency_hist22:45:011
24714739910095,4cyclictest2499458-21kworker/u8:3+events_unbound21:05:290
24714739910090,3cyclictest2569130-21kworker/u8:2+events_unbound00:35:210
2471475999987,9cyclictest1213033-21systemd-journal19:25:001
2471473999987,10cyclictest2565590-40mandb00:00:010
2471473999894,3cyclictest2496540-21kworker/u8:0+events_unbound20:30:200
2471473999889,7cyclictest2496304-21latency_hist20:25:010
2471473999889,7cyclictest2496304-21latency_hist20:25:000
2471475999791,4cyclictest2499456-21kworker/u8:2+flush-179:021:15:161
2471475999786,7cyclictest2523620-21kworker/u8:0+events_unbound21:50:241
2471473999792,4cyclictest2527531-21kworker/u8:1+events_unbound22:10:230
2471473999791,4cyclictest2509088-21kworker/u8:1+events_unbound21:20:120
2471475999688,5cyclictest2527531-21kworker/u8:1+events_unbound22:35:151
2471473999691,4cyclictest2536409-21kworker/u8:3+events_unbound22:30:170
2471475999584,7cyclictest2527531-21kworker/u8:1+events_unbound22:30:231
2471475999570,8cyclictest2491777-21apt-get20:10:111
2471475999488,4cyclictest2471415-21kworker/u8:3+flush-179:019:15:161
2471475999487,4cyclictest2491257-21kworker/u8:2+flush-179:020:15:261
2471475999483,8cyclictest2481446-21latency_hist19:40:011
2471473999489,4cyclictest2569130-21kworker/u8:2+events_unbound00:10:270
2471473999482,8cyclictest2527531-21kworker/u8:1+events_unbound22:50:230
2471473999479,12cyclictest2557069-21latency_hist23:35:020
2471475999387,4cyclictest2509088-21kworker/u8:1+flush-179:021:20:221
2471473999389,3cyclictest2464787-21kworker/u8:2+events_unbound19:25:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional