You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-23 - 23:51
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 Sun Aug 23, 2026 12:44:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)		T*(,W**)
latency
(µs)		CmdPIDPrioCmd
101753599145136,6cyclictest1097605-21latency_hist11:20:011
101753499141129,9cyclictest1050884-21kworker/u8:0+flush-179:009:35:160
101753599139130,6cyclictest1038402-21kworker/u8:1+flush-179:008:20:011
101753499138128,7cyclictest1100780-21kworker/u8:3+flush-179:011:40:000
101753499136125,8cyclictest1068690-21latency_hist09:50:010
101753499133123,8cyclictest1084862-21kworker/u8:1+flush-179:011:05:010
101753599132124,6cyclictest1017476-21kworker/u8:3+flush-179:007:15:011
101753499132121,8cyclictest1083017-21latency_hist10:35:010
101753599127120,5cyclictest1025382-21kworker/u8:0+events_unbound07:40:011
101753499126120,4cyclictest1071867-21latency_hist10:00:000
101753499126120,4cyclictest1028087-21kworker/u8:1+flush-179:007:55:000
101753599124113,8cyclictest1100798-21latency_hist11:30:011
101753499124100,21cyclictest1123354-21latency_hist12:40:010
101753499123117,4cyclictest1050884-21kworker/u8:0+events_unbound09:30:250
101753499123116,5cyclictest1075294-21kworker/u8:2+flush-179:010:25:260
101753499123114,6cyclictest1107424-21latency_hist11:50:010
101753599122116,4cyclictest1072577-21kworker/u8:1+flush-179:010:05:221
101753599122114,5cyclictest1084862-21kworker/u8:1+flush-179:010:50:151
101753599121112,6cyclictest1044517-21kworker/u8:1+events_unbound08:50:231
101753499120112,6cyclictest1106074-21kworker/u8:1+events_unbound12:05:010
101753599119111,5cyclictest1022856-21kworker/u8:1+flush-179:007:30:011
101753599119110,6cyclictest1017476-21kworker/u8:3+flush-179:007:45:251
101753499118106,10cyclictest1054113-21apt-get09:05:010
101753499117109,6cyclictest1044517-21kworker/u8:1+events_unbound08:40:010
101753499117109,6cyclictest1044517-21kworker/u8:1+events_unbound08:40:000
101753499117108,6cyclictest1062319-21latency_hist09:30:000
101753599115108,5cyclictest1028087-21kworker/u8:1+flush-179:007:55:231
101753599113105,5cyclictest1072119-21/usr/sbin/munin10:00:221
101753499113106,4cyclictest1072577-21kworker/u8:1+flush-179:010:05:250
101753599112106,4cyclictest1086214-21latency_hist10:45:011
101753599111103,5cyclictest1072577-21kworker/u8:1+events_unbound10:10:141
101753599111102,6cyclictest1017476-21kworker/u8:3+flush-179:007:20:171
101753499111105,4cyclictest1050884-21kworker/u8:0+flush-179:009:05:170
101753499109101,6cyclictest1100780-21kworker/u8:3+events_unbound11:50:200
10175349910892,6cyclictest1113779-21kworker/u8:0+events_unbound12:25:230
101753499108100,5cyclictest1032314-21kworker/u8:0+flush-179:008:10:140
10175359910799,5cyclictest1050884-21kworker/u8:0+flush-179:009:45:161
10175349910695,8cyclictest1041908-21diskstats08:25:130
10175359910597,5cyclictest1093144-21kworker/u8:0+events_unbound11:05:221
10175359910496,5cyclictest1106074-21kworker/u8:1+flush-179:012:05:271
10175359910494,7cyclictest1050884-21kworker/u8:0+events_unbound09:25:141
10175359910491,6cyclictest1100780-21kworker/u8:3+flush-179:011:30:211
10175359910491,6cyclictest1100780-21kworker/u8:3+flush-179:011:30:211
10175349910497,4cyclictest1100780-21kworker/u8:3+flush-179:012:20:160
10175349910494,8cyclictest1120419-21apt-get12:30:130
10175349910493,8cyclictest1073471-21latency_hist10:05:010
10175359910397,4cyclictest1075294-21kworker/u8:2+events_unbound10:20:261
10175359910394,6cyclictest1084862-21kworker/u8:1+flush-179:011:00:221
10175349910290,8cyclictest1084862-21kworker/u8:1+flush-179:010:55:200
10175359910194,4cyclictest1120146-21kworker/u8:1+flush-179:012:30:261
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional