Date: Fri, 30 Sep 2022 21:04:45 +0930 From: "Daniel O'Connor" <darius@dons.net.au> To: Graham Perrin <grahamperrin@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Block sizes for dd(1) to USB memory sticks (flash drives) for installers for FreeBSD Message-ID: <4C0C2819-439C-448F-A576-A63AEBD45F5F@dons.net.au> In-Reply-To: <1cede94a-c114-17fa-a81c-bb58c2b5879c@freebsd.org> References: <1cede94a-c114-17fa-a81c-bb58c2b5879c@freebsd.org>
next in thread | previous in thread | raw e-mail | index | archive | help
> On 30 Sep 2022, at 16:56, Graham Perrin <grahamperrin@freebsd.org> = wrote: > <https://www.freebsd.org/releases/13.1R/announce/#_availability>; and = elsewhere: >=20 > bs=3D1m >=20 > Why so small? >=20 > I find things much faster with a larger block size. Is this my = imagination? 1m seems large and I wouldn't have expected much improvement past, say.. = 128k. What sort of improvements do you see? ISTR when I have looked before it wasn't much better than 16k. Since it's conv=3Dsync I think you can crank up the size as much as you = like without a problem though (unless your destination device is close = to the image size in which case the padding might make it appear to = fail) -- Daniel O'Connor "The nice thing about standards is that there are so many of them to choose from." -- Andrew Tanenbaum
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4C0C2819-439C-448F-A576-A63AEBD45F5F>