OK - thanks everyone. Here's why I asked: I wrote and run a site - spamgourmet.com, which is a disposable email address service. I wrote the code and most of the supporting website (all perl) in a couple of weekends. The service now has many thousands of users and processes a great deal of mail every day.

The site has been up for almost two years, during which it has cost me $10 per month. I'm still nowhere close to exceeding the limits placed on my account by my hosting company (he.net - gushing endorsement goes here), and I look forward to keeping it that way. I've also sworn to myself and anyone else who'll listen that the service will always be free - that is, not a source of revenue for anybody. (I suppose I plan to simply stop accepting new users when I hit the ceiling, and then encourage others to take up the cause for new users.) Sales of t-shirts, coffee mugs, etc. during this period have netted $17.01 - not enough for cafepress.com to dislodge a check. I've also received a $10 donation. I couldn't care less. To justify this position to (the many) naysayers in my day-to-day life, I can truthfully say that I spend about as much time and money on the service as going to the movies once a month.

The codebase is small - I've open-sourced it, but I'm not aware of anyone using or extending the code, so my focus is more on keeping the users happy, and keeping the service cheap - so, yes, I'm counting bits. Nevertheless, my aim to maintain balance in these things discourages me from using the scientific method too liberally...

So I came here seeking wisdom. I've been told that string concatenation is a real killer in java. I suspected the same was not true in Perl, but I thought I'd ask here, and my suspicion has been abundantly confirmed. Thanks again.

In reply to Re: Re(2): which is faster, interpolation or concatenation? by antichef
in thread which is faster, interpolation or concatenation? by antichef

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