Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755290Ab1ERHyi (ORCPT ); Wed, 18 May 2011 03:54:38 -0400 Received: from bombadil.infradead.org ([18.85.46.34]:37229 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754379Ab1ERHyg (ORCPT ); Wed, 18 May 2011 03:54:36 -0400 Date: Wed, 18 May 2011 03:54:28 -0400 From: Christoph Hellwig To: Tim Bird Cc: Greg KH , Alessio Igor Bogani , Rusty Russell , Anders Kaseorg , Tim Abbott , LKML , Linux Embedded , Jason Wessel , Dirk Behme Subject: Re: [PATCH] module: Use binary search in lookup_symbol() Message-ID: <20110518075428.GA29998@infradead.org> References: <1305665763-3988-1-git-send-email-abogani@kernel.org> <20110517232241.GA19140@kroah.com> <4DD305B3.3000707@am.sony.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <4DD305B3.3000707@am.sony.com> User-Agent: Mutt/1.5.21 (2010-09-15) X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 811 Lines: 16 On Tue, May 17, 2011 at 04:33:07PM -0700, Tim Bird wrote: > That said, I can answer Greg's question. This is to speed up > the symbol resolution on module loading. The last numbers I > saw showed a reduction of about 15-20% for the module load > time, for large-ish modules. Of course this is highly dependent > on the size of the modules, what they do at load time, and how many > symbols are looked up to link them into the kernel. How large are these very large modules, and what are good examples for that? And why do people overly care for the load time? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/