Date: Sun, 10 Dec 2006 05:34:45 GMT From: Matt Jacob <mjacob@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 111368 for review Message-ID: <200612100534.kBA5YjkD086552@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=111368 Change 111368 by mjacob@newisp on 2006/12/10 05:34:27 IFC2 Affected files ... .. //depot/projects/newisp/conf/NOTES#17 integrate .. //depot/projects/newisp/conf/options#11 integrate Differences ... ==== //depot/projects/newisp/conf/NOTES#17 (text+ko) ==== @@ -1,4 +1,4 @@ -# $FreeBSD: src/sys/conf/NOTES,v 1.1400 2006/11/15 09:13:24 maxim Exp $ +# $FreeBSD: src/sys/conf/NOTES,v 1.1401 2006/12/10 04:23:23 mjacob Exp $ # # NOTES -- Lines that can be cut/pasted into kernel and hints configs. # @@ -110,6 +110,21 @@ # options BLKDEV_IOSIZE=8192 +# +# MAXPHYS and DFLTPHYS +# +# These are the max and default 'raw' I/O block device access sizes. +# Reads and writes will be split into DFLTPHYS chunks. Some applications +# have better performance with larger raw I/O access sizes. Typically +# MAXPHYS should be twice the size of DFLTPHYS. Note that certain VM +# parameters are derived from these values and making them too large +# can make an an unbootable kernel. +# +# The defaults are 64K and 128K respectively. +options DFLTPHYS=(64*1024) +options MAXPHYS=(128*1024) + + # Options for the VM subsystem # Deprecated options supported for backwards compatibility #options PQ_NOOPT # No coloring ==== //depot/projects/newisp/conf/options#11 (text+ko) ==== @@ -1,4 +1,4 @@ -# $FreeBSD: src/sys/conf/options,v 1.566 2006/11/30 04:17:04 jb Exp $ +# $FreeBSD: src/sys/conf/options,v 1.567 2006/12/10 04:23:23 mjacob Exp $ # # On the handling of kernel options # @@ -535,6 +535,8 @@ # These cause changes all over the kernel BLKDEV_IOSIZE opt_global.h +MAXPHYS opt_global.h +DFLTPHYS opt_global.h BURN_BRIDGES opt_global.h DEBUG opt_global.h DEBUG_LOCKS opt_global.h
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