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2025-11-22 - 09:42
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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 100 highest latencies:
System rackcslot2.osadl.org (updated Sat Nov 22, 2025 00:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
159762780,0sleep00-21swapper/019:57:040
2801827057,8sleep10-21swapper/119:04:401
5872690,0sleep10-21swapper/123:51:481
183982690,0sleep10-21swapper/100:17:001
2804626755,8sleep00-21swapper/019:04:570
60342640,0sleep00-21swapper/021:45:310
28403994310,8cyclictest0-21swapper/122:19:251
28403994010,29cyclictest0-21swapper/122:31:551
28403993810,27cyclictest0-21swapper/100:25:461
28403993610,25cyclictest0-21swapper/123:30:191
28403993511,23cyclictest9650-21diskmemload21:08:471
28403993510,24cyclictest0-21swapper/123:32:111
2840399350,3cyclictest0-21swapper/123:17:051
28403993410,23cyclictest0-21swapper/123:00:401
28403993311,21cyclictest22580-21ls22:07:051
28403993310,23cyclictest0-21swapper/123:48:021
28403993310,22cyclictest0-21swapper/123:14:291
28403993310,22cyclictest0-21swapper/121:44:531
28403993310,21cyclictest0-21swapper/120:27:011
28403993210,21cyclictest0-21swapper/119:27:001
28403993110,20cyclictest0-21swapper/123:24:261
28403993110,20cyclictest0-21swapper/100:07:001
28402993110,1cyclictest0-21swapper/000:33:410
28403993010,19cyclictest0-21swapper/123:01:571
2840399300,9cyclictest0-21swapper/100:01:041
28403992927,1cyclictest15177-21ntp_states00:12:051
28403992910,0cyclictest0-21swapper/123:09:291
28403992820,8cyclictest0-21swapper/121:23:331
2840399281,7cyclictest0-21swapper/120:42:061
28403992810,5cyclictest0-21swapper/123:43:501
28403992810,17cyclictest0-21swapper/123:37:011
28402992824,3cyclictest636-21nscd23:13:380
2840299280,6cyclictest0-21swapper/000:01:310
2840299280,26cyclictest0-21swapper/000:13:280
2840399274,22cyclictest17556-21/usr/sbin/munin20:02:001
28403992610,16cyclictest0-21swapper/120:15:351
2840399260,9cyclictest0-21swapper/120:57:011
28402992611,11cyclictest0-21swapper/022:04:010
2840299260,3cyclictest0-21swapper/023:39:230
28403992525,0cyclictest231ktimersoftd/100:02:441
28403992511,12cyclictest0-21swapper/122:41:021
28402992510,5cyclictest0-21swapper/000:06:060
28403992411,10cyclictest6894-21apache221:50:201
28403992410,1cyclictest0-21swapper/119:47:091
28403992410,13cyclictest0-21swapper/119:09:431
28403992410,11cyclictest0-21swapper/100:32:251
2840399240,18cyclictest0-21swapper/122:22:261
28403992322,1cyclictest0-21swapper/122:01:501
2840399232,16cyclictest18374-21apache_volume22:47:001
28403992320,2cyclictest0-21swapper/121:56:471
28403992310,4cyclictest0-21swapper/119:17:051
28402992317,3cyclictest0-21swapper/000:22:360
28402992310,7cyclictest0-21swapper/022:58:410
2840399222,7cyclictest0-21swapper/121:56:361
28403992210,8cyclictest0-21swapper/100:29:241
28403992210,3cyclictest0-21swapper/120:21:561
2840299225,7cyclictest0-21swapper/023:47:020
28402992219,2cyclictest81ktimersoftd/019:12:050
28402992219,2cyclictest19625-21kworker/0:220:23:530
2840299221,20cyclictest0-21swapper/022:16:270
28402992210,5cyclictest0-21swapper/023:26:570
28402992210,1cyclictest0-21swapper/021:54:150
2840299220,2cyclictest0-21swapper/022:45:080
2840399214,10cyclictest0-21swapper/122:42:041
28403992121,0cyclictest0-21swapper/121:15:251
28403992117,3cyclictest6894-21apache220:39:101
2840399211,3cyclictest0-21swapper/120:01:371
28403992110,6cyclictest0-21swapper/122:11:591
28403992110,11cyclictest0-21swapper/121:38:441
2840299216,8cyclictest22176-21ls22:07:020
2840299213,12cyclictest0-21swapper/022:16:570
28402992121,0cyclictest0-21swapper/020:29:370
28402992116,4cyclictest6894-21apache219:26:120
28402992113,4cyclictest32064-21kworker/u4:021:29:010
2840299211,15cyclictest12156-21pluginstate23:22:060
28402992110,8cyclictest0-21swapper/022:37:380
28402992110,8cyclictest0-21swapper/021:25:030
28402992110,4cyclictest0-21swapper/021:46:580
28402992110,4cyclictest0-21swapper/000:16:570
2840299210,21cyclictest0-21swapper/023:17:260
191222110,1sleep00-21swapper/023:07:310
336822010,0sleep10-21swapper/119:24:551
2840399204,15cyclictest0-21swapper/120:17:021
2840399202,17cyclictest0-21swapper/121:17:071
28403992018,2cyclictest28400-21cyclictest22:26:511
2840299205,9cyclictest25387-21apache_accesses00:26:570
28402992010,6cyclictest0-21swapper/020:08:440
28402992010,5cyclictest0-21swapper/023:43:130
28402992010,5cyclictest0-21swapper/022:47:010
28402992010,4cyclictest0-21swapper/022:35:050
2840299200,3cyclictest0-21swapper/022:55:290
2840299200,1cyclictest0-21swapper/021:18:310
2840399193,12cyclictest0-21swapper/121:27:061
2840399193,11cyclictest0-21swapper/119:51:561
28403991910,5cyclictest97850irq/107-eth1-rx21:32:231
2840299195,7cyclictest0-21swapper/023:32:000
2840299194,9cyclictest0-21swapper/021:32:040
2840299194,4cyclictest12438-21ssh21:09:370
28402991918,1cyclictest0-21swapper/019:42:050
28402991911,3cyclictest0-21swapper/020:38:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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