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You have to recompile the kernel.
The constant PIPE_SIZE establishes the number of bytes allocated for a pipe (the size of the pipe buffer; in fact, the size of pipe buffer is PAGE_SIZE). The constant PIPE_BUF (limits.h) defines the atomic operational limit (atomic writes to a pipe).
$ mkfifo ncproxy
$ cat < ncproxy | nc -l -p 8888 | tee connlog-in | nc google.com 80 | tee connlog-out | cat > ncproxy &
mkfifo mypipe cat mypipe | bar & <<---- foo mypipe& rm mypipe
foo mypipe & cat mypipe | bar
mkfifo f exp user/pwd tables=HUGE_TABLE file=f & gzip <f >HUGE_TABLE.dmp.gz rm -f f
named pipes в Unix