You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-07-24 - 12:07

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 #7, 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 50 highest latencies:
System rack7slot7s.osadl.org (updated Fri Jul 24, 2026 00:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2467029581,9sleep20-21swapper/219:06:472
2472028774,9sleep00-21swapper/019:07:270
2469128457,9sleep30-21swapper/319:07:043
2465928265,13sleep10-21swapper/119:06:381
2500899290,28cyclictest0-21swapper/223:12:032
103162290,0sleep00-21swapper/021:43:400
25008992827,1cyclictest0-21swapper/223:16:022
2500899280,27cyclictest0-21swapper/223:00:502
25008992717,9cyclictest17579-21diskmemload22:15:222
2500899267,14cyclictest0-21swapper/223:25:162
2500899265,20cyclictest0-21swapper/222:20:142
2500899234,18cyclictest0-21swapper/221:12:192
25008992315,6cyclictest31567-21grep00:10:252
2500899230,23cyclictest0-21swapper/222:02:102
2500899230,16cyclictest0-21swapper/200:35:142
2500899226,15cyclictest0-21swapper/221:17:402
25008992219,2cyclictest17579-21diskmemload23:42:192
2500299220,1cyclictest0-21swapper/023:55:130
2501099217,13cyclictest11264-21apache200:10:013
2500899217,11cyclictest0-21swapper/221:45:012
2500899216,15cyclictest0-21swapper/222:33:362
25008992020,0cyclictest0-21swapper/223:32:462
25008992019,1cyclictest55650irq/127-enp2s0-23:58:512
25008992013,6cyclictest0-21swapper/200:08:582
25008992012,7cyclictest17579-21diskmemload21:26:192
2500499201,17cyclictest24371-21cstates20:15:141
2500299208,6cyclictest9451-21perf19:45:000
2500299202,3cyclictest0-21swapper/022:05:590
2500899199,9cyclictest17579-21diskmemload23:21:192
2500899199,9cyclictest0-21swapper/221:54:482
25008991915,3cyclictest19381-21kworker/u8:122:48:512
25008991912,5cyclictest8866-21fschecks_count20:50:162
25004991919,0cyclictest0-21swapper/123:28:141
25010991818,0cyclictest0-21swapper/321:34:523
2501099180,2cyclictest0-21swapper/321:00:143
2500899185,13cyclictest0-21swapper/200:16:412
2500899183,12cyclictest0-21swapper/221:43:232
25008991817,1cyclictest0-21swapper/222:10:052
25008991816,2cyclictest0-21swapper/223:06:042
25008991814,3cyclictest30137-21pmu-power23:50:232
2500899181,16cyclictest29075-21turbostat.cron21:59:542
25008991810,8cyclictest0-21swapper/222:54:262
2500499182,4cyclictest225-21systemd-journal22:37:181
25004991816,1cyclictest0-21swapper/119:25:161
2500499180,4cyclictest0-21swapper/123:05:521
2500499180,18cyclictest0-21swapper/122:17:231
2500299188,3cyclictest13938-21sendmail-msp00:20:000
25002991812,5cyclictest0-21swapper/022:56:150
2501099173,9cyclictest10470-21/usr/sbin/munin23:00:203
25010991714,2cyclictest39-21ksoftirqd/300:17:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional