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2023-06-03 - 19:33

x86 Intel Celeron G3900 @2800 MHz, Linux 4.16.15-rt7 (Profile)

Latency plot of system in rack #c, slot #2
Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h200 -q
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Characteristics of the 50 highest latencies:
System rackcslot2.osadl.org (updated Sat Jun 03, 2023 12:43:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
225827158,8sleep10-21swapper/107:04:091
252926955,9sleep00-21swapper/007:06:570
2740992414,9cyclictest9710-21ls07:22:460
2740992210,11cyclictest2954-21/usr/sbin/munin09:52:450
2740992210,11cyclictest0-21swapper/007:12:330
2740992110,10cyclictest16113-21ls11:47:520
2740992110,10cyclictest12705-21apt-get07:32:300
2740992010,9cyclictest30074-21pidof09:37:510
2740992010,9cyclictest26910-21ls10:52:460
2740992010,9cyclictest1018-21ntpq09:47:430
2740992010,9cyclictest0-21swapper/008:07:380
2740991912,4cyclictest1-21systemd10:18:580
2740991910,9cyclictest0-21swapper/009:07:440
2740991910,9cyclictest0-21swapper/008:12:450
2740991910,8cyclictest4144-21grep08:32:400
2740991910,8cyclictest21877-21ps09:17:450
2740991910,8cyclictest17955-21apt-get10:32:350
2740991910,8cyclictest13980-21awk11:42:430
2740991910,8cyclictest0-21swapper/012:27:380
2740991910,8cyclictest0-21swapper/012:22:340
2740991910,8cyclictest0-21swapper/012:07:370
2740991910,8cyclictest0-21swapper/010:42:450
2740991910,8cyclictest0-21swapper/010:37:440
2740991910,8cyclictest0-21swapper/010:22:450
2740991910,8cyclictest0-21swapper/010:02:360
2740991910,8cyclictest0-21swapper/009:27:490
2740991910,8cyclictest0-21swapper/009:12:440
2740991910,8cyclictest0-21swapper/008:27:360
2740991910,5cyclictest12585-21ssh11:40:230
2740991810,8cyclictest474-21wget12:32:400
2740991810,8cyclictest25253-21mailstats08:02:420
2740991810,8cyclictest20412-21dpkg07:52:290
2740991810,8cyclictest0-21swapper/011:32:340
2740991810,8cyclictest0-21swapper/011:02:320
2740991810,8cyclictest0-21swapper/010:47:480
2740991810,8cyclictest0-21swapper/009:42:330
2740991810,7cyclictest8902-21/usr/sbin/munin10:07:410
2740991810,7cyclictest8077-21ntp_kernel_pll_08:42:430
2740991810,7cyclictest27303-21if_eth209:32:410
2740991810,7cyclictest0-21swapper/012:17:420
2740991810,7cyclictest0-21swapper/012:12:440
2740991810,7cyclictest0-21swapper/011:12:380
2740991810,7cyclictest0-21swapper/010:27:420
2740991810,7cyclictest0-21swapper/010:02:160
2740991810,7cyclictest0-21swapper/009:02:440
2740991810,7cyclictest0-21swapper/008:57:380
2740991810,7cyclictest0-21swapper/008:52:340
2740991810,7cyclictest0-21swapper/008:37:330
2740991810,7cyclictest0-21swapper/008:22:350
2740991810,7cyclictest0-21swapper/008:17:410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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