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* [dpdk-users] Output to /dev/console provokes packet loss?
@ 2016-02-12 12:32 Ole Bjørn Hessen
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From: Ole Bjørn Hessen @ 2016-02-12 12:32 UTC (permalink / raw)
  To: users


Hi,

I'm running a DPDK application on HP ProLiant DL360 Gen9, BIOS P89 and
CentoS 7.2.1511 with a 10Gb 2-port 560SFP+ Adapter/ixgbe.

A periodically packet loss (increasing stats.imissed) was traced back
to log messages to /dev/console. A simple loop like this provoked the
packet loss:

   while :; do echo "foo bar" > /dev/console; done
   
I saw the same ting when running stock kernel and running standard
iperf so my guess is a problem with the BIOS / motherboard / ILO and
not DPDK. Does anybody have any other hypothesis?

Regards,

Ole Bjørn Hessen.
Telenor.

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2016-02-12 12:32 [dpdk-users] Output to /dev/console provokes packet loss? Ole Bjørn Hessen

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