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2022-01-26 - 12:16

e5500, Linux 4.1.8-rt8+gbd51baffc04e (Profile)

Latency plot of system in rack #4, slot #4
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 rack4slot4.osadl.org (updated Wed Jan 26, 2022 00:44:19)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71780rcu_preempt0-21swapper/021:28:310
71780rcu_preempt0-21swapper/021:28:310
71710rcu_preempt0-21swapper/223:30:572
71710rcu_preempt0-21swapper/223:30:572
71710rcu_preempt0-21swapper/100:32:461
71710rcu_preempt0-21swapper/100:32:461
71710rcu_preempt0-21swapper/100:32:461
71550rcu_preempt0-21swapper/323:46:323
71550rcu_preempt0-21swapper/323:46:323
71520rcu_preempt0-21swapper/119:52:051
71520rcu_preempt0-21swapper/119:52:051
71272510chrt46050irq/122-QMan09:24:360
71272510chrt46050irq/122-QMan09:24:360
71500rcu_preempt25983-21apt-get23:57:082
71500rcu_preempt25983-21apt-get23:57:082
71480rcu_preempt0-21swapper/321:12:533
71480rcu_preempt0-21swapper/321:12:533
71480rcu_preempt0-21swapper/321:12:533
99650460irq/38-i2c-mpc3571-21ssh23:14:490
99650460irq/38-i2c-mpc3571-21ssh23:14:490
99650460irq/38-i2c-mpc3571-21ssh23:14:490
71460rcu_preempt0-21swapper/123:14:381
71460rcu_preempt0-21swapper/123:14:381
71460rcu_preempt0-21swapper/123:14:381
71450rcu_preempt0-21swapper/119:51:521
71450rcu_preempt0-21swapper/119:51:521
2372994322cyclictest10896-21users00:27:253
2372994322cyclictest10896-21users00:27:253
2372994312cyclictest0-21swapper/321:37:133
2372994312cyclictest0-21swapper/321:37:133
2372994222cyclictest17266-21ntp_states20:07:213
2372994222cyclictest17266-21ntp_states20:07:213
2372994218cyclictest0-21swapper/322:16:343
2372994218cyclictest0-21swapper/322:16:343
2372994217cyclictest0-21swapper/300:07:203
2372994217cyclictest0-21swapper/300:07:203
71410rcu_preempt0-21swapper/321:45:443
71410rcu_preempt0-21swapper/321:45:443
71410rcu_preempt0-21swapper/122:36:091
71410rcu_preempt0-21swapper/122:36:091
71410rcu_preempt0-21swapper/119:22:021
71410rcu_preempt0-21swapper/119:22:021
2372994121cyclictest27098-21ssh23:57:313
2372994121cyclictest27098-21ssh23:57:313
2372994121cyclictest10166-21meminfo22:27:163
2372994121cyclictest10166-21meminfo22:27:163
2372994121cyclictest10143-21df23:27:073
2372994121cyclictest10143-21df23:27:073
2372994119cyclictest1906-21/usr/sbin/munin00:12:253
2372994119cyclictest1906-21/usr/sbin/munin00:12:253
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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