[OmniOS-discuss] Low latency networking

Eric Sproul esproul at omniti.com
Tue Aug 7 15:34:33 EDT 2012


On Mon, Aug 6, 2012 at 12:07 PM, Chris Nagele <nagele at wildbit.com> wrote:
> Hi Eric,
>
> Richard had me run:
>
> truss -dD ping -s 10.135.1.11

Chris,
If you don't already have this set, could you try activating the
high-res timer?  By default the system timer is 10ms (100 Hz) but if
you set the following in /etc/system:

set hires_tick = 1

it changes to 1ms (1000 Hz).  Among other things, this affects sleep
and wait calls which might be artificially inflating latency in
programs like ping.

Eric


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