Re: Perl reads minimum 8KB from files. Can this be lowered?

You can set the amount that Perl reads by setting the $/ variable, to (in your case) \512. See perlvar for more information on $/.

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Re^2: Perl reads minimum 8KB from files. Can this be lowered? by ikegami (Patriarch) on Apr 08, 2022 at 16:13 UTC
That's not true. That will just change the amount returned. `$ strace perl -e'$/ = \512; 1 while <STDIN>' <a 2>&1 \| grep 'read(0' read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 8192 read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 8192 read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 3616 read(0, "", 8192) = 0` [download]	[reply] [d/l]

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Re^2: Perl reads minimum 8KB from files. Can this be lowered?
by ikegami (Patriarch) on Apr 08, 2022 at 16:13 UTC

That's not true. That will just change the amount returned.

$ strace perl -e'$/ = \512; 1 while <STDIN>' <a 2>&1 | grep 'read(0'
read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 8192
read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 8192
read(0, "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"..., 8192) = 3616
read(0, "", 8192)                       = 0
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