Date: Sat, 27 Jan 2001 17:48:39 -0800 (PST) From: John Baldwin <jhb@FreeBSD.org> To: Andrew Gallatin <gallatin@cs.duke.edu> Cc: freebsd-alpha@FreeBSD.org, Bernd Walter <ticso@cicely5.cicely.de> Subject: Re: -current failing on PC164 Message-ID: <XFMail.010127174839.jhb@FreeBSD.org> In-Reply-To: <14963.12976.121070.21427@grasshopper.cs.duke.edu>
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On 27-Jan-01 Andrew Gallatin wrote: > > FWIW, the perf. decrease you noticed is probably directly related to > the mutex stuff no longer being inlined -- function calls are pretty > expensive on alpha. I saw a huge perf. increase when we inlined spl's > last year. Right now the mutex API is being somewhat overhauled. When it is done, we may move back to using inlining. If it is a big performance boost on the alpha, then we will definitely inline on at least the alpha. For x86, function calls are (relatively) cheap, so we weren't as worried about it. I am not as aware however when it comes to alpha specifics. Please feel free to knock me upside the head when we do something stupid. > But John is right, you shouldn't be using the ktr stuff unless your > actively debugging something. > > Drew -- John Baldwin <jhb@FreeBSD.org> -- http://www.FreeBSD.org/~jhb/ PGP Key: http://www.baldwin.cx/~john/pgpkey.asc "Power Users Use the Power to Serve!" - http://www.FreeBSD.org/ To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-alpha" in the body of the message
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