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2026-09-13 - 05:39
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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 100 highest latencies:
System rack5slot2.osadl.org (updated Sun Sep 13, 2026 00:44:43)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
109872191177,10sleep10-21swapper/119:09:081
107592187171,11sleep30-21swapper/319:06:133
107462181164,12sleep00-21swapper/019:06:020
107382167148,14sleep20-21swapper/219:05:562
31132510,0sleep2291rcuc/221:24:482
321802440,0sleep20-21swapper/200:22:552
295492440,0sleep10-21swapper/123:48:431
120892430,0sleep10-21swapper/121:12:061
198172420,0sleep10-21swapper/100:16:171
171032390,0sleep10-21swapper/121:15:141
23383290,0sleep10-21swapper/122:06:581
22896290,0sleep30-21swapper/321:34:493
112409973,4cyclictest31600-21munin-run23:50:010
112469960,1cyclictest2094-21sh00:07:292
112409964,2cyclictest0-21swapper/023:26:590
20130250,0sleep220129-21grep20:30:142
112509955,0cyclictest13786-21kworker/3:100:30:413
112509955,0cyclictest0-21swapper/320:15:213
112509955,0cyclictest0-21swapper/320:15:203
112509954,1cyclictest9240-21ssh00:10:483
112509951,3cyclictest0-21swapper/319:55:143
112509950,5cyclictest11048-21mailstats20:10:193
112509950,5cyclictest0-21swapper/322:55:083
112509950,5cyclictest0-21swapper/322:30:123
112509950,5cyclictest0-21swapper/321:45:353
112509950,5cyclictest0-21swapper/321:35:333
112509950,5cyclictest0-21swapper/320:45:153
112509950,5cyclictest0-21swapper/300:25:113
112469955,0cyclictest0-21swapper/223:35:202
112469955,0cyclictest0-21swapper/223:28:202
112469950,5cyclictest0-21swapper/223:52:482
112469950,5cyclictest0-21swapper/223:19:552
112469950,5cyclictest0-21swapper/223:11:282
112469950,5cyclictest0-21swapper/221:46:302
112469950,5cyclictest0-21swapper/221:37:112
112469950,5cyclictest0-21swapper/221:13:282
112469950,5cyclictest0-21swapper/200:15:122
112469950,4cyclictest16031-21ssh22:20:112
112469950,0cyclictest6853-21diskmemload00:27:522
112449952,1cyclictest0-21swapper/123:30:101
112449952,1cyclictest0-21swapper/123:30:091
112449951,2cyclictest0-21swapper/123:55:131
112449951,2cyclictest0-21swapper/122:10:121
112449951,2cyclictest0-21swapper/120:00:101
112449950,5cyclictest0-21swapper/122:15:401
112449950,5cyclictest0-21swapper/120:07:101
112409954,1cyclictest0-21swapper/022:57:270
112409952,3cyclictest0-21swapper/023:20:480
112409951,4cyclictest8536-21kworker/0:221:50:220
112409951,4cyclictest0-21swapper/020:30:160
112409950,5cyclictest0-21swapper/023:52:530
112409950,5cyclictest0-21swapper/023:38:110
112409950,5cyclictest0-21swapper/000:04:050
112409950,4cyclictest0-21swapper/022:40:120
112409950,0cyclictest0-21swapper/000:34:210
16929240,0sleep10-21swapper/122:53:021
112509944,0cyclictest13786-21kworker/3:121:20:243
112509944,0cyclictest13786-21kworker/3:119:39:383
112509944,0cyclictest13786-21kworker/3:119:28:263
112509944,0cyclictest0-21swapper/323:07:043
112509942,1cyclictest802-21snmpd20:55:073
112509941,2cyclictest0-21swapper/319:20:143
112509940,4cyclictest19501-21apt-get20:30:123
112509940,4cyclictest12734-21cut23:40:123
112509940,4cyclictest11348-21apt-get19:10:143
112509940,4cyclictest0-21swapper/323:55:133
112509940,4cyclictest0-21swapper/323:25:113
112509940,4cyclictest0-21swapper/323:23:073
112509940,4cyclictest0-21swapper/323:10:143
112509940,4cyclictest0-21swapper/323:03:003
112509940,4cyclictest0-21swapper/322:45:143
112509940,4cyclictest0-21swapper/322:38:273
112509940,4cyclictest0-21swapper/322:15:123
112509940,4cyclictest0-21swapper/322:02:143
112509940,4cyclictest0-21swapper/321:40:103
112509940,4cyclictest0-21swapper/321:15:133
112509940,4cyclictest0-21swapper/319:30:183
112509940,4cyclictest0-21swapper/300:36:073
112509940,4cyclictest0-21swapper/300:20:123
112509940,4cyclictest0-21swapper/300:05:123
112509940,3cyclictest886-21ssh23:17:333
112509940,3cyclictest6864-21munin-run21:10:013
112509940,3cyclictest32735-21sh21:55:183
112509940,3cyclictest31052-21ssh22:10:333
112509940,3cyclictest28791-21ls00:05:003
112509940,3cyclictest26427-21ssh22:40:593
112509940,3cyclictest25014-21ssh23:30:073
112509940,3cyclictest25014-21ssh23:30:073
112509940,3cyclictest19341-21df_inode22:05:133
112509940,3cyclictest17060-21/usr/sbin/munin22:20:153
112509940,3cyclictest17030-21latency_hist19:20:013
112509940,3cyclictest12678-21ssh21:12:303
112509940,2cyclictest0-21swapper/321:51:593
112509940,1cyclictest22827-21diskstats23:45:143
112509940,1cyclictest22788-21expr20:35:163
112509940,1cyclictest10795-21ssh22:50:173
112469944,0cyclictest0-21swapper/223:59:472
112469944,0cyclictest0-21swapper/223:31:512
112469944,0cyclictest0-21swapper/223:31:512
112469944,0cyclictest0-21swapper/222:27:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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