|Think about Loose Coupling|
Re^5: pipe fork win32by BrowserUk (Pope)
|on Aug 26, 2012 at 15:20 UTC||Need Help??|
See http://www.nntp.perl.org/group/perl.perl5.porters/2011/02/msg169265.html for the change which apparently came in for 5.14.
As the author notes 8k is an arbitrary figure. (And arbitrary is always stupid.)
On every system I've checked -- including various flavours of Windows, one Linux and 1 BSD -- the optimal buffer size for disk IO is 16k or 64k.
But for pipes and sockets, 4k is already too big for many purposes.
I guess the best solution would be to expose setvbuf().
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