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2021-01-16 - 06:49

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 50 highest latencies:
System rack5slot7.osadl.org (updated Sat Jan 16, 2021 00:44:38)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2131224582219,88sleep00-21swapper14:49:370
2044224132178,182sleep00-21swapper14:48:510
304299916417,120cyclictest19421-21irqstats00:19:070
304299916415,128cyclictest6031-21grep19:49:200
304299916343,97cyclictest3197-21ls23:29:210
304299916313,123cyclictest22760-21ls22:49:120
304299916237,99cyclictest28064-21ssh21:29:500
304299916215,102cyclictest5957-21ls21:59:500
304299916213,123cyclictest10170-21ssh23:50:000
304299916119,117cyclictest12610-21ntp_states22:19:380
304299916019,120cyclictest30522-21munin-run21:38:100
304299916019,117cyclictest20186-21apt-get21:08:230
304299916018,117cyclictest23665-21apt-get21:18:240
304299916015,118cyclictest32367-21ls23:19:240
304299915918,101cyclictest17686-21fw_conntrack00:13:550
304299915915,119cyclictest15269-21apt-get22:28:230
304299915914,118cyclictest22344-21df_inode21:13:520
304299915912,121cyclictest8454-21ls23:44:510
304299915818,98cyclictest31678-21munin-run23:18:070
304299915818,115cyclictest6695-21apt-get22:03:180
304299915816,119cyclictest3616-21grep21:53:430
304299915815,101cyclictest25986-21ls21:24:140
304299915814,105cyclictest14506-21sort22:24:490
304299915736,102cyclictest16469-21latency_hist20:48:090
304299915719,113cyclictest11843-21munin-run22:18:110
304299915718,115cyclictest16989-21apt-get22:33:190
304299915717,117cyclictest5892-21apt-get23:38:210
304299915714,119cyclictest8403-21apt-get22:08:170
304299915711,120cyclictest11651-21ls23:54:500
304299915616,116cyclictest31232-21ls21:39:280
304299915616,116cyclictest24051-21ssh00:33:340
304299915616,116cyclictest23872-21apt-get22:53:240
304299915614,120cyclictest20547-21/usr/sbin/munin00:23:570
304299915614,117cyclictest1650-21ssh21:48:250
304299915517,115cyclictest14008-21apt-get00:03:180
304299915517,114cyclictest21076-21memory22:44:190
304299915516,116cyclictest861-21/usr/sbin/munin23:23:440
304299915515,114cyclictest26597-21ssh23:02:500
304299915513,118cyclictest6107-21/usr/sbin/munin19:53:330
304299915513,102cyclictest1549-21apt-get21:48:120
304299915512,118cyclictest22140-21/usr/sbin/munin00:28:270
304299915417,96cyclictest17226-21munin-run00:13:080
304299915415,97cyclictest4837-21/usr/sbin/munin19:44:020
304299915415,115cyclictest27588-21ls23:04:440
304299915413,117cyclictest4508-21df23:33:440
304299915412,118cyclictest18836-21ssh22:38:250
304299915317,115cyclictest28361-21apt-get23:08:180
304299915316,114cyclictest12384-21apt-get23:58:220
304299915314,117cyclictest20179-21munin-run21:08:080
304299915311,117cyclictest15426-21grep20:39:200
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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