Date: Mon, 20 Feb 2012 16:21:16 +0100 From: Olivier Smedts <olivier@gid0.org> To: perryh@pluto.rain.com Cc: rank1seeker@gmail.com, sendtomatt@gmail.com, dougb@freebsd.org, =?ISO-8859-2?Q?Edward_Tomasz_Napiera=B3a?= <trasz@freebsd.org>, hackers@freebsd.org Subject: Re: 8 to 9: Kernel modularization -- did it change? Message-ID: <CABzXLYN9HnbRan8GTbvOnokcvrufBOhYKXpf02wSgXJWS=Q_Xg@mail.gmail.com> In-Reply-To: <4f3ff151.FznGzC6RC0a5qBKx%perryh@pluto.rain.com> References: <CAOjFWZ6WM1bLEwaBiUE50Gj4MrwxefDWFb85ecRtYkSDuZ0erg@mail.gmail.com> <mailpost.1329495670.7246668.67851.mailing.freebsd.hackers@FreeBSD.cs.nctu.edu.tw> <4F3E8225.9030501@FreeBSD.org> <E1RyRKJ-000Ioa-Ec@hans3> <4F3E8C26.3080900@FreeBSD.org> <E1RyRq0-000Iqy-3l@hans3> <4F3EA5F2.9070804@gmail.com> <E1RyTZo-000J0R-0Y@hans3> <4F3EAE5F.6070903@gmail.com> <E1RyUv6-000J5e-0E@hans3> <20120217.220802.988.2@DOMY-PC> <4F3EDEBC.7040703@gmail.com> <4F3EFB70.5000102@FreeBSD.org> <4f3ff151.FznGzC6RC0a5qBKx%perryh@pluto.rain.com>
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2012/2/18 <perryh@pluto.rain.com>: > Doug Barton <dougb@freebsd.org> wrote: > >> loading modules through loader.conf is >> veeeeeerrrrryyyyyy sssssllllloooooowwwwww ... > > Is it noticeably slower to load (say) a 6MB kernel + 2MB of > modules than to load an 8MB kernel? =A0If so, any idea why? It has been *really* slower to load many files (modules) since I switched to ZFS on root. I had to build a monolithic kernel to save 10-15s of loading time. Now I use trasz@'s (CC'ed) patch to speed up the loader, and it seems maybe as fast as with UFS. I don't know if the patch speeds up things with UFS, but with ZFS it made a big difference. --=20 Olivier Smedts=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 = =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0=A0 _ =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0= =A0 ASCII ribbon campaign ( ) e-mail: olivier@gid0.org=A0 =A0 =A0 =A0 - against HTML email & vCards=A0 X www: http://www.gid0.org=A0 =A0 - against proprietary attachments / \ =A0 "Il y a seulement 10 sortes de gens dans le monde : =A0 ceux qui comprennent le binaire, =A0 et ceux qui ne le comprennent pas."
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