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From: "Venkatesan, Venky" <venky.venkatesan@intel.com>
To: Stephen Hemminger <stephen@networkplumber.org>, jigsaw <jigsaw@gmail.com>
Thread-Topic: [dpdk-dev] Is it possible to have dpdk running with no
 dependency on a nic ?
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Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] Is it possible to have dpdk running with no
 dependency on a nic ?
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If in-lining is that big a concern, you could create your own wrapper funct=
ion and explicitly mark it no-inline. Personally, I haven't seen any inordi=
nate increase in i-cache miss rates because of in-lining on the application=
s we have - prefetchers on IA are usually capable of keeping up. However, e=
very application is different enough that there really is no "general" rule=
 here.

-Venky


-----Original Message-----
From: dev [mailto:dev-bounces@dpdk.org] On Behalf Of Stephen Hemminger
Sent: Monday, February 17, 2014 8:42 AM
To: jigsaw
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] Is it possible to have dpdk running with no depende=
ncy on a nic ?

On Mon, 17 Feb 2014 14:49:47 +0200
jigsaw <jigsaw@gmail.com> wrote:

> Hi Stephen,
>=20
> Have you tried link time optimization on DPDK application? Does it=20
> decrease the I-cache miss rate evidently?
>=20
> thx &
> rgds,
> -Qinglai
>=20

We use link-time-optimization without any problem.
No big performance gain, but I really don't think all the inlining of big f=
unctions is necessary.