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2025-06-17 - 01:40
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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 Mon Jun 16, 2025 12:44:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1899921350,6sleep118998-21systemd-run09:17:421
62639912055,59cyclictest3734-21kernelversion09:48:100
6263991152,24cyclictest3732-21idleruntime-cro08:37:410
6263991133,41cyclictest11771-21ssh12:02:570
62639911237,46cyclictest0-21swapper/011:27:570
6263991093,27cyclictest7244-21latency_hist08:47:420
62639910916,63cyclictest2450-21seq09:46:020
6263991084,27cyclictest18147-21sh09:15:150
6263991083,29cyclictest7767-21sh10:55:200
6263991083,25cyclictest356-21runrttasks09:36:400
6263991072,25cyclictest25031-21taskset09:27:590
6263991063,26cyclictest29400-21runrttasks10:35:270
6263991063,23cyclictest15141-21ssh11:09:360
739421050,3sleep1291rcuc/110:54:011
6263991053,25cyclictest356-21runrttasks10:30:390
6263991053,25cyclictest356-21runrttasks10:30:390
62789910447,16cyclictest181rcu_preempt09:55:371
6263991043,25cyclictest12680-21sh10:04:220
6263991043,25cyclictest12680-21sh10:04:220
6263991043,22cyclictest5958-21latency_hist10:52:440
6263991042,27cyclictest7784-21sh11:55:260
6263991042,26cyclictest356-21runrttasks08:11:000
6263991042,25cyclictest22917-21seq07:56:570
6263991042,24cyclictest10126-21ssh09:59:370
6263991042,24cyclictest10126-21ssh09:59:370
6263991033,25cyclictest24543-21seq08:01:430
6263991033,23cyclictest32083-21sh10:40:210
6263991033,23cyclictest32083-21sh10:40:210
6263991032,22cyclictest31487-21taskset09:38:330
6263991023,28cyclictest19164-21latency_hist10:17:440
6263991023,25cyclictest356-21runrttasks08:22:220
6263991023,23cyclictest4809-21ssh11:50:090
6263991022,23cyclictest23554-21ssh09:23:480
6263991022,23cyclictest23344-21ssh11:25:480
6117210228,48sleep30-21swapper/307:07:403
6263991014,24cyclictest7569-21taskset07:09:560
6263991013,8cyclictest0-21swapper/012:08:000
6263991013,8cyclictest0-21swapper/012:08:000
6263991013,28cyclictest13872-21sh09:07:440
6263991013,25cyclictest21986-21sh09:22:360
6263991013,25cyclictest21986-21sh09:22:360
6263991013,24cyclictest21426-21sh10:21:180
6263991013,21cyclictest12842-21ssh11:05:220
62639910125,43cyclictest0-21swapper/011:38:010
62639910125,43cyclictest0-21swapper/011:38:010
6263991012,26cyclictest356-21runrttasks12:19:160
6263991012,26cyclictest2133-21sh11:45:430
6263991012,25cyclictest8561-21taskset08:49:340
6263991012,24cyclictest27842-21ssh12:29:530
6263991012,24cyclictest27842-21ssh12:29:530
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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