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authorasami <asami@FreeBSD.org>1999-03-30 02:42:20 +0000
committerasami <asami@FreeBSD.org>1999-03-30 02:42:20 +0000
commitc8882d761eb7ff6325032bc4d160af3f7a071454 (patch)
tree0b8f3d3af09218b2eae642ddc6af6493d18b4827 /misc/buffer/pkg-descr
parent895382848a8d83faef7b11503594498e7c546b00 (diff)
downloadFreeBSD-ports-c8882d761eb7ff6325032bc4d160af3f7a071454.zip
FreeBSD-ports-c8882d761eb7ff6325032bc4d160af3f7a071454.tar.gz
(I hope I caught this quickly enough....)
CVS replace buffer that was just imported with the backup from the Attic cleanup. This should look identical to what Steve committed, except it has all the history resurrected.
Diffstat (limited to 'misc/buffer/pkg-descr')
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diff --git a/misc/buffer/pkg-descr b/misc/buffer/pkg-descr
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+This is a program designed initially to speed up writing tapes on remote
+tape drives, but may be used as a general pipe buffering utility.
+Note: You must have SYSVSHM support in FreeBSD kernel.
+
+The program splits itself into two processes. The first process reads
+(and reblocks) from stdin into a shared memory buffer. The second
+writes from the shared memory buffer to stdout. Doing it this way
+means that the writing side effectly sits in a tight write loop and
+doesn't have to wait for input. Similarly for the input side. It is
+this waiting that slows down other reblocking processes, like dd.
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