From: Eric Dumazet <eric.dumazet@gmail.com>
To: make-wifi-fast@lists.bufferbloat.net
Subject: Re: [Make-wifi-fast] emulating wifi better - coupling qdiscs in netem?
Date: Sun, 17 Jun 2018 17:59:02 -0700 [thread overview]
Message-ID: <6800a688-b167-8bc7-0a47-13f38109e3a3@gmail.com> (raw)
In-Reply-To: <150ABF21-FAFC-48E2-9E55-CAA609EAE449@heistp.net>
On 06/16/2018 03:53 PM, Pete Heist wrote:
> The mean induced latency of 65us for C or 114us for Go might be within your parameters, except you mentioned 10us for WiFi bus arbitration, which does indeed look impossible with this setup, even in C.
>
You guys have to learn about busy polling, to avoid scheduler being in the picture.
Basically, do not ever block in a system call, dedicate one thread/cpu for this netem stuff.
prev parent reply other threads:[~2018-06-18 0:59 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-05-30 17:28 Dave Taht
2018-05-30 18:32 ` Bob McMahon
2018-05-30 18:54 ` Dave Taht
2018-05-30 18:58 ` Jonathan Morton
2018-05-30 19:19 ` Bob McMahon
2018-05-30 23:26 ` Dave Taht
2018-05-30 22:57 ` dpreed
2018-06-15 22:30 ` Dave Taht
2018-06-16 22:53 ` Pete Heist
2018-06-17 11:19 ` Jesper Dangaard Brouer
2018-06-17 15:16 ` Pete Heist
2018-06-17 16:09 ` Dave Taht
2018-06-17 18:38 ` Pete Heist
2018-06-17 18:47 ` Jonathan Morton
2018-06-18 9:24 ` Pete Heist
2018-06-18 16:08 ` Eric Dumazet
2018-06-18 19:33 ` Pete Heist
2018-06-18 19:44 ` Dave Taht
2018-06-18 21:54 ` Pete Heist
2018-06-18 22:27 ` Eric Dumazet
2018-06-17 20:42 ` Dave Taht
2018-06-18 1:02 ` Eric Dumazet
2018-06-18 0:59 ` Eric Dumazet [this message]
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