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2022-01-26 - 05:20

ARMv7 Processor rev 5 (v7l), Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #5, slot #7
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l50000000 -m -n -a0 -t1 -p99 -i400 -h400 -q
Total number of samples: 50 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 alll highest latencies:
System rack5slot7.osadl.org (updated Wed Jan 26, 2022 00:44:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5569224410,11sleep03046-1kworker/u3:118:45:440
60009916920,120cyclictest14365-21apt-get21:44:480
60009916817,125cyclictest29756-21memory00:05:460
60009916714,126cyclictest26708-21timerwakeupswit23:56:090
60009916316,121cyclictest16037-21apt-get21:49:430
60009916237,100cyclictest31878-21ssh22:35:580
60009916134,91cyclictest9898-21ntp_states21:30:540
60009916118,118cyclictest19438-21apt-get21:59:460
60009916118,100cyclictest14392-21df_inode23:20:220
60009916115,122cyclictest18015-21ntp_states23:30:560
60009916033,107cyclictest7826-21cstates21:25:030
60009916029,113cyclictest4039-21sh21:14:190
60009916015,120cyclictest6237-21df_inode21:20:140
60009916014,122cyclictest10978-21apt-get21:34:500
60009915918,116cyclictest8958-21apt-get23:04:440
60009915916,117cyclictest29855-21apt-get20:54:450
60009915915,121cyclictest13597-21users21:41:130
60009915913,121cyclictest19946-21ssh23:36:090
60009915816,98cyclictest15706-21apt-get23:24:450
60009915816,119cyclictest2197-21apt-get22:44:440
60009915813,121cyclictest762-21df_abs22:40:130
60009915813,102cyclictest19340-21sort21:59:250
60009915718,97cyclictest31350-21irqstats00:10:360
60009915717,99cyclictest28159-21apt-get20:49:420
60009915717,116cyclictest10650-21apt-get23:09:420
60009915715,118cyclictest7277-21apt-get22:59:430
60009915715,117cyclictest22797-21apt-get22:09:440
60009915711,119cyclictest9353-21grep19:04:490
60009915711,119cyclictest1277-21sed21:05:400
6000991569,122cyclictest3900-21ssh22:49:490
60009915639,91cyclictest5890-21df_abs22:55:150
60009915617,114cyclictest31575-21apt-get20:59:500
60009915615,119cyclictest462-21df_inode00:15:160
60009915615,102cyclictest27553-21apt-get23:59:530
60009915611,120cyclictest7079-21munin-node22:24:350
60009915611,120cyclictest24491-21apt-get22:14:360
60009915611,120cyclictest14704-21basename19:34:490
60009915610,120cyclictest21410-21df_abs22:05:120
60009915519,96cyclictest25080-21users23:51:120
60009915517,118cyclictest12778-21irqstats23:15:360
60009915513,103cyclictest4204-21ssh21:14:420
60009915513,102cyclictest26459-21df22:20:100
60009915511,119cyclictest17182-21grep19:45:350
60009915511,102cyclictest21407-21ssh23:40:540
60009915439,95cyclictest17920-21processes19:50:260
60009915420,109cyclictest7013-21munin-node18:54:300
60009915416,117cyclictest22478-21apt-get23:44:530
60009915412,117cyclictest11661-21wc19:15:280
60009915411,119cyclictest16030-21ntp_kernel_pll_19:40:240
60009915410,119cyclictest22533-21timerwakeupswit20:15:330
60009915317,95cyclictest29906-21df_inode22:30:170
60009915311,119cyclictest27935-21head20:45:320
60009915311,117cyclictest19159-21/usr/sbin/munin20:00:300
60009915213,116cyclictest26774-21ntpq20:40:180
60009915210,118cyclictest18986-21grep19:55:350
60009915210,117cyclictest13821-21wget19:29:480
60009915210,116cyclictest25676-21df_abs20:34:580
60009915115,115cyclictest20532-21ntp_states20:05:230
60009915111,117cyclictest12704-21unixbench_singl19:20:300
60009915019,109cyclictest12879-21apt-get19:24:410
60009915018,107cyclictest10182-21apt-get19:09:420
60009915013,114cyclictest23490-21grep20:20:300
60009915012,116cyclictest8656-21grep18:59:580
60009914915,112cyclictest20943-21apt-get20:09:410
60009914814,97cyclictest7013-21munin-node18:54:270
60009914813,112cyclictest25053-21wc20:30:260
60009914639,87cyclictest24363-21unixbench_singl20:25:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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