You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-10 - 09:27
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
Characteristics of the 50 highest latencies:
System rackdslot1.osadl.org (updated Thu Jul 10, 2025 00:45:39)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1513521550,2sleep21998099cyclictest22:25:212
1513521550,2sleep21998099cyclictest22:25:212
399221400,5sleep11997899cyclictest00:20:171
2847191640,22ptp4l2249-21iostat_ios19:40:150
2847191630,4ptp4l0-21swapper/022:40:270
2847191610,4ptp4l0-21swapper/119:25:251
2847191590,5ptp4l0-21swapper/319:08:293
2847191590,4ptp4l0-21swapper/119:05:191
2847191580,4ptp4l0-21swapper/020:09:230
2847191580,3ptp4l0-21swapper/119:50:261
19978995829,4cyclictest25-21ksoftirqd/123:39:591
19978995829,4cyclictest25-21ksoftirqd/100:30:271
19978995821,4cyclictest25-21ksoftirqd/120:40:171
19978995821,4cyclictest25-21ksoftirqd/120:40:171
19978995730,7cyclictest25-21ksoftirqd/119:40:241
19978995724,9cyclictest25-21ksoftirqd/121:00:161
2847191560,5ptp4l0-21swapper/000:10:300
2847191560,3ptp4l0-21swapper/219:31:212
19978995624,10cyclictest25-21ksoftirqd/120:20:171
19978995623,6cyclictest25-21ksoftirqd/121:55:221
19978995623,6cyclictest25-21ksoftirqd/121:55:221
19978995620,6cyclictest25-21ksoftirqd/100:18:101
2847191550,5ptp4l0-21swapper/019:06:050
2847191550,4ptp4l0-21swapper/023:35:590
2847191550,4ptp4l0-21swapper/022:21:130
19978995529,10cyclictest25-21ksoftirqd/123:30:281
19978995527,8cyclictest25-21ksoftirqd/121:10:281
19978995519,7cyclictest25-21ksoftirqd/100:00:151
2847191540,4ptp4l0-21swapper/221:43:312
2847191540,3ptp4l0-21swapper/223:00:252
2847191540,3ptp4l0-21swapper/023:50:130
2847191540,2ptp4l1299-21runrttasks19:59:230
2847191540,13ptp4l0-21swapper/000:15:280
2847191540,10ptp4l0-21swapper/222:10:262
19978995428,7cyclictest25-21ksoftirqd/123:10:161
19978995426,6cyclictest25-21ksoftirqd/123:00:261
2847191530,4ptp4l0-21swapper/320:53:403
2847191530,4ptp4l0-21swapper/221:54:282
2847191530,4ptp4l0-21swapper/023:46:200
2847191530,4ptp4l0-21swapper/023:28:140
2847191530,4ptp4l0-21swapper/020:35:110
2847191530,3ptp4l0-21swapper/221:46:452
2847191530,3ptp4l0-21swapper/220:56:042
19978995326,8cyclictest25-21ksoftirqd/120:30:001
19978995326,4cyclictest25-21ksoftirqd/121:40:211
19978995324,4cyclictest25-21ksoftirqd/122:25:131
19978995324,4cyclictest25-21ksoftirqd/122:25:121
19978995323,6cyclictest25-21ksoftirqd/123:55:201
19978995322,3cyclictest25-21ksoftirqd/100:25:271
2847191520,4ptp4l0-21swapper/320:57:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional