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Re^2: Perl always reads in 4K chunks and writes in 1K chunks... Loads of IO!

by NeilF (Sexton)
on Jan 01, 2006 at 23:26 UTC ( #520306=note: print w/replies, xml ) Need Help??


in reply to Re: Perl always reads in 4K chunks and writes in 1K chunks... Loads of IO!
in thread Perl always reads in 4K chunks and writes in 1K chunks... Loads of IO!

I initally thought this was STUNNING! I testing it on perl on my XP system and saw a dramatic reduction on IO processes shown on FileMon...

HOWEVER, I thought I'd test it via CYGWin, and get NO difference/improvement when using Binmode...

The software will run (at the end of the day) on my ISP's Unix system, so I need to be sure it will help on there...

Now everything is back up in the air again with different results from two different perl platforms on my machine :(

I'm very worried now that what my system is showing me is not a fair reflection of what will happen on Perl on Unix etc etc... ie: I could drastically reduce io processes shown by FileMon on my system, but not make the slightest difference to when the software is running on my ISP...
  • Comment on Re^2: Perl always reads in 4K chunks and writes in 1K chunks... Loads of IO!

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