You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-27 - 08:10
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 rack0slot7.osadl.org (updated Sat Jul 27, 2024 00:46:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26464709926113,138cyclictest0-21swapper/321:46:599
2646460992265,118cyclictest0-21swapper/021:05:030
26465149922512,118cyclictest0-21swapper/1521:05:037
26464639920815,78cyclictest2931189-21tr20:25:211
26458332206184,13sleep60-21swapper/619:08:2312
26465049919251,137cyclictest0-21swapper/1222:30:184
26465149918313,70cyclictest0-21swapper/1522:21:247
26465149918313,70cyclictest0-21swapper/1522:21:247
26465149918113,69cyclictest0-21swapper/1520:05:237
26465149918013,70cyclictest0-21swapper/1521:26:277
26457772178153,15sleep100-21swapper/1019:07:562
26443452178109,50sleep140-21swapper/1419:05:346
26457332172148,15sleep120-21swapper/1219:07:264
2646484991695,26cyclictest3168431-21kworker/u64:3+i915@
__i915_gem_free_work
10:47:2712
26458292167145,14sleep20-21swapper/219:08:208
26457672167144,14sleep80-21swapper/819:07:5414
9412201660,158pipewire-pulse0-21swapper/319:05:519
26458082163139,14sleep70-21swapper/719:08:0913
2646499991581,8cyclictest2871708-1kworker/u65:2+i915_flip@
intel_atomic_commit_work
07:01:132
9412201550,145pipewire-pulse0-21swapper/019:08:570
26286442152130,13sleep50-21swapper/519:05:1011
26465049915033,2cyclictest0-21swapper/1222:10:014
26465049915033,2cyclictest0-21swapper/1222:10:014
26464739915014,1cyclictest611irq_work/422:30:1810
26465099914831,115cyclictest0-21swapper/1322:10:015
26465099914831,115cyclictest0-21swapper/1322:10:015
2646511991459,0cyclictest0-21swapper/1422:30:186
2646499991450,49cyclictest0-21swapper/1021:50:332
2646499991430,139cyclictest1005793-21thunderbird22:30:182
2646467991435,1cyclictest0-21swapper/222:30:188
2646470991420,138cyclictest0-21swapper/322:30:189
2646460991412,3cyclictest2743868-21expr19:35:110
2646491991400,3cyclictest0-21swapper/822:30:1814
2646489991400,21cyclictest2901670-21kworker/7:1+i915-unordered@
__intel_wakeref_put_work
06:09:4713
2646480991390,3cyclictest0-21swapper/522:30:1811
2646489991380,21cyclictest3679763-21kworker/7:1+i915-unordered@
__intel_wakeref_put_work
20:10:3213
2646489991380,20cyclictest2901670-21kworker/7:1+i915-unordered@
__intel_wakeref_put_work
08:45:1613
2646509991360,1cyclictest0-21swapper/1322:30:185
2646504991360,2cyclictest0-21swapper/1219:35:104
2646489991360,20cyclictest2901670-21kworker/7:1+i915-unordered@
__intel_wakeref_put_work
22:12:4913
2646463991360,2cyclictest0-21swapper/119:35:111
2646467991358,2cyclictest0-21swapper/219:40:088
26465119913411,0cyclictest0-21swapper/1419:40:086
2646499991340,1cyclictest0-21swapper/1019:35:112
2646491991340,1cyclictest0-21swapper/819:35:1114
2646470991343,57cyclictest0-21swapper/320:02:089
26458112134110,15sleep90-21swapper/919:08:1115
2646509991330,1cyclictest0-21swapper/1319:35:115
26464919913213,5cyclictest3292511-21net.downloadhel22:10:0114
26464919913213,5cyclictest3292511-21net.downloadhel22:10:0114
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional