The following reply was made to PR conf/157903; it has been noted by GNATS.
From: Warner Losh <i...@bsdimp.com>
To: Hans Petter Selasky <hsela...@c2i.net>
Cc: Robert Millan <r...@debian.org>, freebsd-hack...@freebsd.org,
freebsd-bugs@FreeBSD.org, freebsd-gnats-sub...@freebsd.org,
freebsd-...@freebsd.org, freebsd-curr...@freebsd.org
Subject: Re: misc/157903: automated kldload for USB class devices
Date: Fri, 24 Jun 2011 11:21:05 -0600
On Jun 24, 2011, at 7:11 AM, Hans Petter Selasky wrote:
> On Friday 24 June 2011 14:59:37 Robert Millan wrote:
>> 2011/6/24 Hans Petter Selasky <hsela...@c2i.net>:
>>>> Very nice. But why not use variable names instead of hardcoding
>>>> numbers? It makes the output much easier to understand.
>>>=20
>>> To save memory.
>>=20
>> I haven't inspected devd code, but I was under the assumption that
>> variables only lived untill resolved. What would be the point of =
keeping
>> them in memory after devd has finished parsing the config files?
>=20
> Hi,
>=20
> I haven't checked that, though if you want the readable version, then =
you need=20
> to check the source code.
>=20
> However I could add some code to print a vendor ID comment, based on =
usbdevs.
devd keeps them in memory and expands them when the commands are =
executed. It will use more memory and be slower if you have lots of =
variables. Now much more memory and how much slower? I kinda doubt =
you'd notice on modern gear.
Warner
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