move rwbuffer to new cprogs directory

[chiark-utils.git] / backup / writebuffer.1

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-.TH writebuffer 1 2001-10-21 chiark-backup
-.SH NAME
-writebuffer \- write output to devices which don't like constant stopping and starting
-.SH SYNOPSIS
-.B writebuffer
-.RB [ --mlock ]
-.RI [ size ]
-.SH DESCRIPTION
-.B writebuffer
-reads data on standard input and writes it to standard output.  It
-will buffer internally up to \fIsize\fR megabytes and will only write
-data when the buffer is at least 75% full or when there is no more
-input to fill the buffer.
-.PP
-It is intended for use in situations where many small writes are
-undesirable for performance reasons, e.g. tape drives.
-.SH OPTIONS
-.TP
-.B --mlock
-Calls
-.BR mlock (2)
-to lock the buffer into memory.
-.SH "SEE ALSO"
-.BR readbuffer (1),
-.BR mlock (2)