Well, I guess that on a single processor machine, splitting a task into threads which essentially synchronously do the same thing each, is likely to give no improvement, since they end up competing for the same resources at the same time - the hog is the same, be it 1 hog or n times 1/n hogs. The picture changes when threads use different resources which can be consumed in parallel, or if more processing pipelines can be used (e.g. multiple cpus). The utility iostat() may give a picture of the scarcest resource.

--shmem 

_($_=" "x(1<<5)."?\n".q·/)Oo.  G°\        /
                              /\_¯/(q    /
----------------------------  \__(m.====·.(_("always off the crowd"))."·
");sub _{s./.($e="'Itrs `mnsgdq Gdbj O`qkdq")=~y/"-y/#-z/;$e.e && print}

In reply to Re: threads and multiple filehandles by shmem
in thread threads and multiple filehandles by zentara

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