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2023-03-26 - 04:15

x86 Intel Pentium @133 MHz, Linux 4.18.7-rt5 (Profile)

Latency plot of system in rack #3, slot #5
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l25000000 -m -n -a0 -t1 -p99 -i800 -h1000 -q
Total number of samples: 25 million
Resolution of latency scale: reduced 
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 376 highest latencies:
System rack3slot5.osadl.org (updated Sun Mar 26, 2023 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
71929943242,0cyclictest25230-21munin-run22:52:360
71929941688,0cyclictest2000-21apt-get23:33:170
71929940791,0cyclictest9306-21sed00:03:380
71929940694,0cyclictest17952-21cron20:02:290
71929940595,0cyclictest13551-21grep22:03:560
71929940193,0cyclictest26269-21forks20:38:280
71929940187,0cyclictest14172-21ssh00:22:330
71929939879,0cyclictest31659-21apt-get21:03:000
71929939865,0cyclictest30525-21ntpq20:58:000
71929939836,0cyclictest28427-21mailstats23:07:490
71929939588,0cyclictest2286-21lldpd23:38:460
71929939581,0cyclictest4681-21ssh21:28:400
71929939393,0cyclictest18325-21ssh00:38:360
71929939136,0cyclictest264-21kswapd020:22:580
71929939091,0cyclictest32111-21ssh23:23:090
71929938782,0cyclictest806-21ssh23:28:460
71929938645,0cyclictest906-21diskmemload21:13:150
71929938635,0cyclictest5911-21df21:33:370
71929938537,0cyclictest31574-21timerwakeupswit23:19:580
71929938535,0cyclictest16692-21cron22:17:310
71929938436,0cyclictest21552-21apt-get20:17:590
71929938383,0cyclictest23161-21ssh22:42:300
71929938337,0cyclictest16355-21missed_timers00:29:560
71929938265,0cyclictest3016-21chrt21:22:300
71929938232,0cyclictest2404-21sendmail-mta20:50:450
71929938135,0cyclictest19092-21munin-run20:07:340
71929938092,0cyclictest14293-21mailstats00:22:550
71929938036,0cyclictest17147-21munin-node00:33:590
71929938035,0cyclictest14146-21munin-node19:43:450
71929937836,0cyclictest15090-21switchtime19:48:310
71929937835,0cyclictest12310-21needreboot00:14:280
71929937795,0cyclictest9332-21ntpq19:23:180
71929937761,0cyclictest2344-21lldpd19:28:440
71929937736,0cyclictest30085-21timerandwakeup23:14:420
71929937665,0cyclictest15892-21irqstats19:52:470
71929937536,0cyclictest23747-21switchtime22:44:180
71929937535,0cyclictest21327-21munin-run20:17:320
71929937435,0cyclictest11312-21cat00:09:590
71929937428,0cyclictest10855-21latency_hist21:52:400
71929937371,0cyclictest29584-21df_inode20:53:280
71929937289,0cyclictest8989-21cron00:02:300
71929937278,0cyclictest25408-21sh22:52:550
71929937238,0cyclictest2344-21lldpd20:07:590
71929937235,0cyclictest13102-21munin-run22:02:390
71929937232,0cyclictest2338-21snmpd21:08:240
71929937185,0cyclictest7736-21latency_hist23:57:370
71929937185,0cyclictest4370-21apt-get23:43:310
71929937165,0cyclictest11294-21df_inode21:53:590
71929937138,0cyclictest8184-21cron21:42:300
71929937134,0cyclictest27654-21munin-node23:03:470
71929937132,0cyclictest17424-21ssh22:19:270
71929937038,0cyclictest25159-21munin-node20:33:290
71929936635,0cyclictest21501-21munin-node22:34:470
71929936633,0cyclictest3569-21sh21:24:030
71929936627,0cyclictest8394-21ssh21:43:010
71929936529,0cyclictest20594-21munin-run22:32:360
71929936433,0cyclictest5680-21switchtime23:49:100
71929936329,0cyclictest15321-21ssh22:10:080
71929936135,0cyclictest27030-21latency_hist20:42:390
71929936072,0cyclictest7634-21munin-node19:13:260
71929935584,0cyclictest26508-21apt-get22:58:330
71929935580,0cyclictest18773-21munin-node22:24:310
71929935468,0cyclictest0-21swapper20:28:220
71929935224,0cyclictest13469-21cron19:42:290
71929934670,0cyclictest12353-21latency_hist19:37:290
71929933664,0cyclictest8920-21sshd19:21:280
71929933470,0cyclictest2607-21runrttasks19:12:340
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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