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2026-08-31 - 23:35
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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 376 highest latencies:
System rack6slot5.osadl.org (updated Mon Aug 31, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
19319998415163,4674cyclictest23988-21kworker/0:207:24:100
19319986554589,4062cyclictest23988-21kworker/0:207:29:240
19319980484035,3963cyclictest5101-21kworker/0:208:42:310
19319979864007,3928cyclictest5101-21kworker/0:208:53:440
19319978984085,3800cyclictest23988-21kworker/0:207:14:110
19319978314216,3601cyclictest23988-21kworker/0:207:41:150
19319975593790,3719cyclictest30159-21kworker/0:008:32:080
19319973764014,3349cyclictest30159-21kworker/0:008:22:270
19319972563771,3454cyclictest5101-21kworker/0:208:57:400
19319971043766,3288cyclictest23988-21kworker/0:207:33:440
19319969853710,3225cyclictest23988-21kworker/0:208:03:390
19319967713539,3218cyclictest5101-21kworker/0:209:18:340
19319966653593,3069cyclictest23988-21kworker/0:207:35:180
19319963873525,2849cyclictest23988-21kworker/0:207:18:010
19319963693231,3124cyclictest23988-21kworker/0:207:53:240
19319962573389,2864cyclictest23988-21kworker/0:208:05:140
19319957923142,2647cyclictest23988-21kworker/0:208:14:110
19319943424247,82cyclictest23988-21kworker/0:207:48:500
17342893185,204sleep00-21swapper07:09:000
19319953391,381cyclictest4285-21lldpd09:37:030
1931995223,505cyclictest0-21swapper08:45:140
19319948232,450cyclictest0-21swapper08:36:020
19319946230,371cyclictest30385-21ssh09:41:050
19319946132,429cyclictest0-21swapper12:39:440
19319945566,212cyclictest5080-21gltestperf11:10:250
19319945424,190cyclictest8187-21munin-node10:05:100
19319945319,372cyclictest22057-21ssh09:22:330
19319944263,366cyclictest0-21swapper10:44:120
19319944167,93cyclictest23464-21strings11:50:540
19319944153,87cyclictest15434-21diskmemload10:20:220
19319943969,187cyclictest10985-21ssh11:23:120
19319943665,197cyclictest0-21swapper09:12:120
19319943584,338cyclictest17886-21ssh11:39:190
19319943473,348cyclictest31396-21ssh12:09:580
19319943361,87cyclictest27530-21ssh10:47:160
19319943254,212cyclictest0-21swapper11:05:010
19319943253,213cyclictest0-21swapper07:57:150
19319942967,303cyclictest0-21swapper09:34:160
19319942362,302cyclictest0-21swapper12:28:440
19319941433,367cyclictest13-21rcuc/010:15:520
19319940833,361cyclictest4305-21snmpd09:57:220
19319940827,358cyclictest23043-21ssh10:37:070
19319940432,359cyclictest4305-21snmpd10:29:160
19319940119,359cyclictest23181-21ssh09:25:370
19319939932,359cyclictest11-21ksoftirqd/012:18:190
19319939834,351cyclictest19858-21ssh11:42:590
19319939824,191cyclictest15434-21diskmemload10:55:580
19319939717,366cyclictest11-21ksoftirqd/012:31:450
19319939625,357cyclictest11923-21ssh10:12:100
19319939419,372cyclictest4285-21lldpd12:03:070
19319939416,378cyclictest12447-21sort11:26:050
19319939231,347cyclictest344450irq/10-eth009:50:470
19319939135,356cyclictest0-21swapper12:14:550
19319939021,369cyclictest0-21swapper08:17:470
19319939014,363cyclictest344450irq/10-eth009:48:140
19319938916,359cyclictest14734-21rm11:31:110
19319938834,340cyclictest26258-21ssh11:56:390
19319938824,351cyclictest8874-21ssh11:18:500
19319938734,341cyclictest15434-21diskmemload11:48:540
19319938733,339cyclictest15434-21diskmemload12:20:080
19319938633,340cyclictest31853-21strings08:25:370
19319938631,341cyclictest15434-21diskmemload10:32:560
19319937732,345cyclictest0-21swapper10:53:220
19319937025,331cyclictest7175-21fschecks_time10:01:220
19319936334,88cyclictest3790-21grep11:06:240
19319935797,87cyclictest11846-21munin-node09:00:130
19319935380,261cyclictest4285-21lldpd09:05:470
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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