You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-26 - 04:57
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 rackbslot7.osadl.org (updated Sun Oct 26, 2025 00:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17428212518,68sleep117455-21munin-run19:09:291
17577991153,103cyclictest1101-21apt-get22:19:430
294921140,6sleep20-21swapper/200:10:132
121821110,6sleep10-21swapper/123:14:231
744021030,7sleep024715-21diskmemload22:29:310
744021030,7sleep024715-21diskmemload22:29:310
1759099983,8cyclictest0-21swapper/121:54:421
1759099973,28cyclictest17743-21seq00:35:431
17597999675,15cyclictest18087-21latency_hist20:49:302
1759099937,75cyclictest0-21swapper/123:54:421
1759099933,7cyclictest0-21swapper/123:44:411
1759099925,8cyclictest0-21swapper/123:29:411
1759099925,8cyclictest0-21swapper/123:29:411
1759099913,18cyclictest13711-21ssh23:35:001
1757799912,52cyclictest15-21ksoftirqd/021:44:500
17597999033,23cyclictest26811-21seq23:55:572
17597999029,29cyclictest5858-21seq22:25:302
17597999029,29cyclictest5858-21seq22:25:302
1759099905,74cyclictest0-21swapper/120:19:401
17577999065,17cyclictest10228-21latency_hist22:34:290
17597998931,22cyclictest22163-21seq21:59:452
17597998929,23cyclictest15108-21ssh22:41:432
1759099894,7cyclictest0-21swapper/119:59:421
1759099894,38cyclictest1490-21/usr/sbin/munin21:24:561
1759099894,38cyclictest1490-21/usr/sbin/munin21:24:561
1759099893,6cyclictest0-21swapper/121:14:441
17577998959,12cyclictest181rcu_preempt23:50:510
17577998956,11cyclictest181rcu_preempt20:05:010
17577998951,18cyclictest181rcu_preempt23:27:450
17577998951,16cyclictest181rcu_preempt19:19:300
17597998828,24cyclictest20708-21seq21:56:252
17577998865,8cyclictest181rcu_preempt20:47:440
17577998838,28cyclictest181rcu_preempt21:16:140
1759099874,9cyclictest0-21swapper/122:04:461
17590998740,38cyclictest0-21swapper/123:40:031
17590998740,38cyclictest0-21swapper/123:40:031
1759099873,7cyclictest0-21swapper/121:29:411
17590998737,41cyclictest28192-21cpuspeed19:39:461
1759099873,34cyclictest8056-21processes21:35:011
17577998753,13cyclictest181rcu_preempt21:14:290
1759099864,8cyclictest0-21swapper/119:24:451
1759099863,42cyclictest27860-21idleruntime-cro19:39:281
1759099863,34cyclictest1572-21/usr/sbin/munin23:15:071
17577998636,16cyclictest181rcu_preempt19:24:580
17597998525,22cyclictest0-21swapper/220:56:332
1759099853,9cyclictest0-21swapper/120:14:451
1759099853,8cyclictest0-21swapper/120:24:481
1759099853,7cyclictest0-21swapper/100:14:411
1759099853,37cyclictest31021-21ssh21:19:411
1759099853,33cyclictest20329-21/usr/sbin/munin19:14:591
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional