(reformatted repost from p5p)20020725153047.2333.2@bactrian.elixent.com

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Andy Dougherty <doughera_at_lafayette.edu> writes:

I'd expect that programs that use split() a lot also probably do a lot of I/O. I'm unsure how the PerlIO system benchmarks against earlier stdio versions,

As are we all.

particularly on systems where perl could "cheat" and poke around inside the stdio buffers.[*]

On such system's PerlIO will normaly use :stdio layer as its underlying implementation. For the majority of calls that means a function call and a couple of indirections more that before.

If you want PerlIO and speed is important to you than using :perlio will normally be slightly quicker than :stdio. :perlio allows the poking around and does not have some of the overheads of a typical system's stdio (e.g. no MUTEX locking we don't share them between threads).

--
Nick Ing-Simmons
http://www.ni-s.u-net.com/

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Yves / DeMerphq
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Please dont upvote this node. It is posted FYI only.

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