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Diffstat (limited to 'misc/buffer/pkg-descr')
| -rw-r--r-- | misc/buffer/pkg-descr | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/misc/buffer/pkg-descr b/misc/buffer/pkg-descr deleted file mode 100644 index c5c68ac64335..000000000000 --- a/misc/buffer/pkg-descr +++ /dev/null @@ -1,27 +0,0 @@ -This is a program designed to speed up writing tapes on remote tape -drives. Requirements are shared memory and locks which normally -means that these are supported in your kernel. - -[for FreeBSD, this means you MUST have a kernel with - options SYSVSHM - compiled in - markm] - -Buffer has been tested under SunOS 4.0.*, SunOS 4.1.*, Solarix, HP-UX 7.0, -and Gould UTX 2.1A (sv universe). - -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. - -I run an archive and need to write large chunks out to tape regularly -with an ethernet in the way. Using 'buffer' in a command like: - - tar cvf - stuff | rsh somebox "buffer > /dev/rst8" - -is a factor of 5 faster than the best alternative, gnu tar with its -remote tape option: - - tar cvf somebox:/dev/rst8 stuff |