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2025-12-08 - 07:56
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rack3slot5.osadl.org.osadl.org (updated Mon Dec 08, 2025 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
151152510,0ktimers/023821sleep18:51:370
33089947434,0cyclictest801-21mailstats23:56:310
33089946132,0cyclictest6382-21ntpq00:21:470
1514520,0ktimers/086861sleep19:22:190
1514490,0ktimers/0297961sleep23:39:510
33089944728,0cyclictest21504-21cron23:01:300
33089944632,0cyclictest0-21swapper22:42:470
33089944332,0cyclictest4492-21open_inodes21:36:320
1514430,0ktimers/066921sleep19:12:400
1514410,0ktimers/0130861sleep19:42:250
330899431119,0cyclictest0-21swapper22:06:370
33089942930,0cyclictest22056-21sshd20:24:360
1514290,0ktimers/0135181sleep22:22:220
33089942449,0cyclictest20209-21awk22:52:510
33089942188,0cyclictest0-21swapper19:31:350
33089941930,0cyclictest22905-21chrt20:28:080
33089941842,0cyclictest35-1kworker/0:1H-kblockd21:41:490
33089941830,0cyclictest18913-21munin-node20:08:080
33089941530,0cyclictest26468-21chrt20:46:560
330899415126,0cyclictest0-21swapper22:31:340
330899414104,0cyclictest0-21swapper21:17:320
33089941333,0cyclictest25673-21sed20:42:080
33089941130,0cyclictest9796-21df_inode19:27:240
33089941038,0cyclictest47-21kswapd000:06:590
33089941032,0cyclictest30373-21memory23:42:310
33089941031,0cyclictest16133-21mailstats19:56:480
33089941030,0cyclictest28194-21switchtime23:32:310
33089940539,0cyclictest0-21swapper22:47:080
33089940530,0cyclictest1722-21sendmail-mta22:27:560
330899403123,0cyclictest0-21swapper22:01:370
33089940233,0cyclictest1654-21snmpd21:51:440
33089940231,0cyclictest14675-21chrt19:48:300
33089940228,0cyclictest30495-21mailstats21:06:490
33089940227,0cyclictest5195-21which19:06:360
33089940143,0cyclictest7634-21awk19:17:240
33089940129,0cyclictest2770-21nfs_client21:27:440
33089940034,0cyclictest18044-21sshd20:05:360
33089940029,0cyclictest5171-21chrt00:16:270
33089940029,0cyclictest4524-21awk00:12:390
33089940029,0cyclictest2312-21nfs_client00:02:350
33089939933,0cyclictest1927-21runrttasks20:58:240
33089939931,0cyclictest32758-21runrttasks23:53:030
33089939929,0cyclictest31483-21latency_hist21:11:280
33089939926,0cyclictest2216-21sendmail21:26:200
33089939886,0cyclictest0-21swapper20:36:360
33089939844,0cyclictest9035-21chrt21:57:430
33089939834,0cyclictest0-21swapper19:01:190
33089939830,0cyclictest23778-21awk20:32:460
33089939734,0cyclictest12686-21sshd22:17:520
33089939638,0cyclictest0-21swapper23:27:510
33089939631,0cyclictest25659-21munin-node23:22:190
33089939533,0cyclictest17110-21chrt22:38:080
33089939531,0cyclictest23124-21grep23:07:470
33089939430,0cyclictest7384-21awk21:51:200
33089939429,0cyclictest15707-21cut19:53:120
33089939332,0cyclictest21023-21wc20:18:040
33089939227,0cyclictest1654-21snmpd21:05:500
33089939131,0cyclictest4243-21sshd21:33:520
33089939129,0cyclictest25280-21nfs_client23:17:350
33089939028,0cyclictest27504-21switchtime20:52:320
33089938930,0cyclictest5024-21chrt19:05:480
33089938930,0cyclictest21474-21chrt23:00:470
33089938930,0cyclictest11895-21chrt22:14:040
33089938833,0cyclictest0-21swapper19:37:490
33089938832,0cyclictest31087-21ls23:46:320
33089938731,0cyclictest19687-21sshd20:12:360
33089938329,0cyclictest23917-21ntpq23:11:510
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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