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2024-11-22 - 11:19
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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 50 highest latencies:
System rackbslot7.osadl.org (updated Fri Nov 22, 2024 00:44:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2137211420,61sleep12236-21grep19:05:281
172821046,15sleep20-21swapper/219:05:162
2721998846,32cyclictest26249-21cron20:19:351
2721998846,32cyclictest26249-21cron20:19:351
272099886,59cyclictest5196-21apt-get19:15:120
2720998841,9cyclictest0-21swapper/020:44:350
2720998633,18cyclictest0-21swapper/022:25:070
136662850,6sleep30-21swapper/323:02:533
136662850,6sleep30-21swapper/323:02:533
2721998438,38cyclictest31448-21sh21:44:351
272099834,38cyclictest14273-21apt-get23:04:550
2721998142,31cyclictest14865-21kworker/u8:223:24:371
2721998142,31cyclictest14865-21kworker/u8:223:24:371
129628119,25sleep00-21swapper/019:04:540
2723998062,9cyclictest5396-21cron23:44:353
2723998048,26cyclictest23789-21unixbench_singl21:30:143
2721998038,11cyclictest8276-21latency_hist19:24:371
2722997859,12cyclictest30578-21unixbench_multi22:35:092
2723997753,15cyclictest3545-21munin-plugin-st20:49:353
2723997635,31cyclictest0-21swapper/321:50:023
35472750,5sleep20-21swapper/222:45:012
2723997436,28cyclictest0-21swapper/300:00:053
272199745,10cyclictest5393-21ssh21:54:441
272199745,10cyclictest5393-21ssh21:54:441
272199744,13cyclictest18638-21grep23:10:071
2720997417,30cyclictest18400-21apt-get19:55:050
272399733,60cyclictest10074-21apt-get19:29:473
2722997353,13cyclictest14639-21diskmemload21:15:102
272199734,61cyclictest23132-21modprobe23:19:341
272199734,60cyclictest32743-21modprobe00:34:341
272199733,16cyclictest27484-21head20:20:091
272199733,11cyclictest10248-21cut19:29:551
2723997236,30cyclictest23241-21unixbench_singl00:15:093
272399723,60cyclictest5389-21apt-get21:54:463
272399723,60cyclictest5389-21apt-get21:54:463
272199723,62cyclictest3823-21grep23:40:101
272199723,18cyclictest5571-21modprobe22:49:351
272199723,17cyclictest394-21runrttasks19:14:381
272199723,15cyclictest14549-21/usr/sbin/munin22:10:031
272199723,13cyclictest24635-21modprobe20:14:351
2722997149,14cyclictest0-21swapper/222:15:102
272199714,7cyclictest0-21swapper/119:34:471
272199714,7cyclictest0-21swapper/119:34:471
272199714,14cyclictest7257-21cut20:59:561
272199714,14cyclictest7257-21cut20:59:561
272199713,14cyclictest27764-21latency_hist00:24:371
272199713,13cyclictest29213-21grep23:29:371
272199713,12cyclictest8744-21apt-get22:54:451
272199713,12cyclictest5196-21apt-get19:15:161
272199712,15cyclictest5665-21fschecks_time20:54:541
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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