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2025-06-17 - 01:48
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Mon Jun 16, 2025 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5021212324282,27sleep10-21swapper/107:06:561
5023892304260,29sleep00-21swapper/007:09:480
5025169918090,78cyclictest624779-21gpgv10:45:011
5025119913675,48cyclictest624779-21gpgv10:45:020
5025119911324,77cyclictest621858-21cut10:40:210
5025169910427,65cyclictest624779-21gpgv10:45:011
5933012560,4sleep10-21swapper/110:03:261
7008512530,4sleep00-21swapper/012:23:580
125899520,4rtkit-daemon1257-21rtkit-daemon09:21:080
7032652480,4sleep10-21swapper/112:26:141
6753132470,4sleep10-21swapper/111:50:201
125899460,3rtkit-daemon0-21swapper/009:07:240
125899440,3rtkit-daemon0-21swapper/011:18:120
125899440,3rtkit-daemon0-21swapper/007:23:410
502511994312,8cyclictest13-21ksoftirqd/012:40:010
125899430,3rtkit-daemon0-21swapper/011:13:150
125899430,3rtkit-daemon0-21swapper/008:05:460
50251699420,12cyclictest637015-21apt-get11:00:141
125899410,3rtkit-daemon0-21swapper/011:39:270
125899400,3rtkit-daemon0-21swapper/007:35:280
50251699391,20cyclictest578658-21ssh09:45:091
125899390,3rtkit-daemon0-21swapper/008:36:120
6029702380,2sleep10-21swapper/110:15:241
50251699381,13cyclictest662219-21ssh11:32:341
125899380,6rtkit-daemon632853-21munin-run10:55:001
125899380,3rtkit-daemon0-21swapper/007:17:020
125899370,3rtkit-daemon0-21swapper/008:41:310
50251699363,11cyclictest582656-21/usr/sbin/munin09:50:301
50251699362,13cyclictest693010-21taskset12:12:581
50251699362,13cyclictest607427-21ssh10:20:471
50251699361,8cyclictest575250-21fschecks_count09:40:181
50251699360,11cyclictest550949-21diskmemload09:15:181
50251199363,4cyclictest13-21ksoftirqd/010:15:000
50251699356,21cyclictest533106-40apt-check08:25:191
502516993510,10cyclictest141rcu_preempt10:10:161
50251699342,11cyclictest700492-21chrt12:23:061
50251699341,13cyclictest596105-21chrt10:06:071
50251699341,13cyclictest569987-21chrt09:33:321
50251699341,13cyclictest562485-21chrt09:24:141
50251699341,12cyclictest665707-21chrt11:36:471
50251699341,12cyclictest531439-21chrt08:20:241
50251699341,12cyclictest529338-21grep08:15:191
50251199346,3cyclictest141rcu_preempt12:10:230
50251699338,13cyclictest613858-21diskstats10:30:191
50251699330,13cyclictest551237-21/usr/sbin/munin09:10:141
50251699330,12cyclictest508257-21sed07:20:271
50251199337,6cyclictest13-21ksoftirqd/009:55:250
50251199333,4cyclictest13-21ksoftirqd/012:09:290
50251199333,4cyclictest13-21ksoftirqd/011:10:010
50251199333,2cyclictest141rcu_preempt09:10:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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