You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-12-11 - 14:16
Click here to display the system's profile data.
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 rackeslot8.osadl.org (updated Wed Dec 11, 2024 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32858742370,0sleep13285875-21ssh23:59:061
33475342320,1sleep30-21swapper/300:35:243
31533402280,7chrt0-21swapper/222:35:182
2866050992818,9cyclictest3286537-21apt-key00:00:010
2866050992818,2cyclictest3069855-21latency21:40:210
2866050992716,2cyclictest3135715-21apt-key22:25:010
2866050992714,2cyclictest2899022-21idleruntime-cro19:35:000
2866050992714,2cyclictest2899022-21idleruntime-cro19:35:000
2866054992623,2cyclictest501-21dbus-daemon22:39:591
2866060992522,1cyclictest0-21swapper/300:20:013
2866054992421,2cyclictest3238571-21apt-key23:30:001
2866054992421,2cyclictest0-21swapper/100:20:011
2866050992421,2cyclictest3302417-21systemd-run00:10:010
2866059992219,2cyclictest3004753-21sendmail20:59:592
2866050992214,2cyclictest277-21plymouthd23:35:200
2866060992118,1cyclictest0-21swapper/320:05:013
2866060992118,1cyclictest0-21swapper/319:45:013
2866060992118,1cyclictest0-21swapper/300:00:003
2866060992017,1cyclictest0-21swapper/323:35:013
2866060992017,1cyclictest0-21swapper/319:40:003
2866059992018,1cyclictest3222613-21idleruntime-cro23:20:002
2866059992018,1cyclictest0-21swapper/219:40:002
2866054992017,2cyclictest501-21dbus-daemon21:40:001
286605499201,18cyclictest3033692-21sed21:20:151
2866050992017,2cyclictest3112647-21irqcore22:10:150
2866050992017,2cyclictest3017137-21diskmemload22:30:140
2866050992017,2cyclictest2980759-21irqcore20:40:170
2866050992016,2cyclictest0-21swapper/000:15:000
2866050992014,4cyclictest3125624-21grep22:15:250
2866060991916,1cyclictest0-21swapper/321:00:173
2866060991916,1cyclictest0-21swapper/319:55:163
2866059991916,2cyclictest3294681-21latency_hist00:05:002
2866050991913,4cyclictest3255524-21tail23:40:180
2866060991815,1cyclictest0-21swapper/323:30:003
2866060991815,1cyclictest0-21swapper/322:42:103
2866060991815,1cyclictest0-21swapper/321:40:183
2866059991815,2cyclictest3350006-21sendmail00:40:002
2866059991815,1cyclictest0-21swapper/223:50:012
2866059991814,3cyclictest3196543-21ntp_kernel_pll_23:00:212
2866059991814,3cyclictest3089790-21irqrtprio21:55:172
2866054991814,3cyclictest3243797-21kthreadcore23:30:151
2866054991813,3cyclictest3207020-21latency_hist23:10:001
2866050991815,2cyclictest3004761-21sendmail20:59:590
2866050991815,2cyclictest0-21swapper/021:30:000
2866050991814,3cyclictest1-21systemd21:52:120
2866050991812,4cyclictest3318182-21cron00:20:000
2866050991812,4cyclictest3017128-21cron21:10:000
286605099181,12cyclictest0-21swapper/019:20:100
2866060991715,1cyclictest0-21swapper/322:25:013
2866060991714,1cyclictest0-21swapper/323:35:163
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional