Date: Wed, 6 Jan 2010 17:12:18 +0000 (UTC) From: Alexander Motin <mav@FreeBSD.org> To: cvs-src-old@freebsd.org Subject: cvs commit: src/sbin/geom/class/stripe geom_stripe.c Message-ID: <201001061712.o06HCTV1005979@repoman.freebsd.org>
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mav 2010-01-06 17:12:18 UTC
FreeBSD src repository
Modified files:
sbin/geom/class/stripe geom_stripe.c
Log:
SVN rev 201658 on 2010-01-06 17:12:18Z by mav
Increase default block size from 4K to 64K. It was reduces 6 yeard ago,
when trees were big and FAST mode was enabled by default.
So small block size doesn't benefits linear I/O operations in FAST and
significantly slowdowns in ECONOMIC (default) mode. For single stream random
I/Os so small block doesn't give much benefits, as access time is usually
bigger then transfer time there. Same time it requires all heads to seek
together for every single request, reducing performance on parallel load.
Revision Changes Path
1.17 +1 -1 src/sbin/geom/class/stripe/geom_stripe.c
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