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Full Discussion: Named pipe performance
Top Forums Shell Programming and Scripting Named pipe performance Post 302554751 by alister on Tuesday 13th of September 2011 01:39:05 AM
Old 09-13-2011
To my knowledge, increasing the size of pipe and fifo (named pipe) buffers requires tweaking a header file and recompiling the kernel. The parameter in question is PIPE_BUF.

If you're using a recent linux, it's probably 64K. On an older linux, I believe it's 4K. On some other UNIX systems, it may be as low as 512 bytes (I believe this is the minimum allowed by POSIX).

You should be able to check the value with getconf PIPE_BUF pathname, where "pathname" is the path to the named pipe or the directory in which the named pipe will be located.

Regards,
Alister

Last edited by alister; 09-13-2011 at 02:54 AM..
 

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explain_pipe_or_die(3)					     Library Functions Manual					    explain_pipe_or_die(3)

NAME
explain_pipe_or_die - create pipe and report errors SYNOPSIS
#include <libexplain/pipe.h> void explain_pipe_or_die(int *pipefd); DESCRIPTION
The explain_pipe_or_die function is used to call the pipe(2) system call. On failure an explanation will be printed to stderr, obtained from explain_pipe(3), and then the process terminates by calling exit(EXIT_FAILURE). This function is intended to be used in a fashion similar to the following example: explain_pipe_or_die(pipefd); pipefd The pipefd, exactly as to be passed to the pipe(2) system call. Returns: This function only returns on success. On failure, prints an explanation and exits. SEE ALSO
pipe(2) create pipe explain_pipe(3) explain pipe(2) errors exit(2) terminate the calling process COPYRIGHT
libexplain version 0.52 Copyright (C) 2009 Peter Miller explain_pipe_or_die(3)
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