Date: Mon, 07 Dec 2009 11:56:18 +0100 From: =?utf-8?Q?Dag-Erling_Sm=C3=B8rgrav?= <des@des.no> To: Luigi Rizzo <rizzo@iet.unipi.it> Cc: svn-src-head@freebsd.org, Ed Schouten <ed@80386.nl>, svn-src-all@freebsd.org, src-committers@freebsd.org, Hajimu UMEMOTO <ume@freebsd.org> Subject: Re: the need for safe dynamic string libraries Message-ID: <86ein7t5m5.fsf@ds4.des.no> In-Reply-To: <20091207105343.GA62012@onelab2.iet.unipi.it> (Luigi Rizzo's message of "Mon, 7 Dec 2009 11:53:43 %2B0100") References: <200912052009.nB5K9okL098577@svn.freebsd.org> <ygek4wzpdv3.wl%ume@mahoroba.org> <20091207055752.GD64905@hoeg.nl> <20091207085927.GC57764@onelab2.iet.unipi.it> <86iqcjt93c.fsf@ds4.des.no> <20091207105343.GA62012@onelab2.iet.unipi.it>
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Luigi Rizzo <rizzo@iet.unipi.it> writes: > What do you mean exactly ? When libsbuf was ported to userland, sbuf_printf() was pessimized due to the limitations of libc's printf(). This makes certain parts of pseudofs extremely inefficient: for instance, if you read from a /proc/whatever that's backed by an sbuf, it has to generate the entire file even if you only asked for a small chunk at a large offset. DES --=20 Dag-Erling Sm=C3=B8rgrav - des@des.no
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