You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-06-19 - 11:49
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 rack0slot8.osadl.org (updated Tue Jun 18, 2024 12:46:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29227509927510,142cyclictest3032933-21kworker/u64:4+i915@
__i915_gem_free_work
01:15:450
29227509921512,73cyclictest30330361kworker/u64:7+i915@
__i915_gem_free_work
04:55:030
29227509921313,73cyclictest3119568-21kworker/u64:2+i915@
__i915_gem_free_work
09:33:480
2922768991900,67cyclictest0-21swapper/1511:25:137
29227689915026,0cyclictest0-21swapper/1511:35:047
292275799150148,1cyclictest821irq_work/611:03:0812
292275499143139,2cyclictest511irq_work/311:41:019
292276799141138,1cyclictest0-21swapper/1407:32:546
2922750991410,138cyclictest0-21swapper/011:30:510
292276799139137,0cyclictest0-21swapper/1407:54:026
292276799139137,0cyclictest0-21swapper/1407:54:016
292275699139136,1cyclictest721irq_work/510:12:2511
292275499136132,2cyclictest511irq_work/312:38:209
292276199135133,0cyclictest1251rcuc/1008:03:062
292276199135133,0cyclictest1251rcuc/1008:03:062
292275899135133,0cyclictest921irq_work/710:12:2513
2922755991340,0cyclictest0-21swapper/411:30:5110
2922762991320,1cyclictest3008219-21fw_forwarded_lo08:40:203
2922750991320,0cyclictest0-21swapper/008:45:080
2922765991300,0cyclictest0-21swapper/1308:40:195
29227589913010,4cyclictest3052135-21kworker/u64:0+i915@
__i915_gem_free_work
17:35:4113
29227589913010,4cyclictest3052135-21kworker/u64:0+i915@
__i915_gem_free_work
03:37:3213
2922751991300,0cyclictest0-21swapper/108:40:201
2922764991290,126cyclictest0-21swapper/1212:00:144
2922764991280,125cyclictest0-21swapper/1208:45:074
2922758991280,2cyclictest2964035-21chrt07:51:5213
2922758991280,2cyclictest2964035-21chrt07:51:5213
2922753991280,1cyclictest0-21swapper/210:35:028
2922753991280,1cyclictest0-21swapper/210:35:028
2922765991270,1cyclictest0-21swapper/1310:10:175
2922765991270,1cyclictest0-21swapper/1307:51:525
2922765991270,1cyclictest0-21swapper/1307:51:525
2922760991270,2cyclictest1271970-21gnome-shell09:35:0215
2922758991270,1cyclictest0-21swapper/711:25:1413
2922751991270,2cyclictest0-21swapper/109:45:161
2922751991270,1cyclictest0-21swapper/111:25:131
2922751991270,1cyclictest0-21swapper/110:10:171
2922751991270,1cyclictest0-21swapper/107:51:521
2922751991270,1cyclictest0-21swapper/107:51:511
2922768991260,1cyclictest0-21swapper/1510:10:167
2922765991260,1cyclictest0-21swapper/1311:20:035
2922765991260,1cyclictest0-21swapper/1311:00:115
2922764991260,1cyclictest0-21swapper/1210:35:024
2922764991260,1cyclictest0-21swapper/1210:35:014
2922762991260,1cyclictest0-21swapper/1111:25:143
2922762991260,1cyclictest0-21swapper/1111:20:033
2922762991260,1cyclictest0-21swapper/1110:10:173
2922762991260,1cyclictest0-21swapper/1107:51:523
2922762991260,1cyclictest0-21swapper/1107:51:523
2922760991260,1cyclictest0-21swapper/910:10:1715
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional