Re: read X number of lines?

What are you reading in the Windows Kernel? If you have a PERL cookbook page 274. Do a:

read(HANDLE, $buffer, size(k));
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then use:

sysseek(HANDLE, $var, length, offset);
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but this is the extent of what I understand about what you are trying to do.

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RE: Re: read X number of lines? by eduardo (Curate) on May 26, 2000 at 07:18 UTC
hm... lemme try to describe it a bit better. I have a series of files, some of them up to 800 megs (and actually i think larger... yep, 1.6 gigs... damn...) and they are all organized in such a way that there is a record every new line. Instead of: read line, process line, write out line, repeat... which is slow (and hard on the IO subsystem) I would like to: read 10000 lines, process 10000 lines, write them out, repeat. my theory being that this would be more efficient IO wise... make better sense?	[reply]

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RE: Re: read X number of lines?
by eduardo (Curate) on May 26, 2000 at 07:18 UTC

hm... lemme try to describe it a bit better. I have a series of files, some of them up to 800 megs (and actually i think larger... yep, 1.6 gigs... damn...) and they are all organized in such a way that there is a record every new line. Instead of: read line, process line, write out line, repeat... which is slow (and hard on the IO subsystem) I would like to: read 10000 lines, process 10000 lines, write them out, repeat. my theory being that this would be more efficient IO wise... make better sense?

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