Am I right to assume that my first code attempt took forever since I had to load the file into memory first. And my second attempt is faster since I send the headers first then start sending data when I read the first line?

Yes.

Is there a better way to do this?

Is this a binary file? (application/* implies it is.) If so, you should set binmode on the output handle (after sending the header) and on the input handle.

Again, if this is a binary file, you should probably set $/ to a block size. You're reading a line at a time, and there's no guarantee to be any line feeds in your file, so you could theoretically end up reading the whole file at once the second way too. For example, $/ = \1024; Refer to the documentation of $/ in perlvar for details.

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.