What is so slow about the modern JVM?

Erm... its slowness? - Back in the 90s of the past century, at a customers site we replaced two blue closet-sized boxes proudly carrying three letters with a small pizza box running HP-UX which did all the work and cycles to spare. My workstation at that time was a SPARCstation ELC with 50MHz CPU clock and 48MB RAM. I had perl 4 patchlevel 36 on it, and later the first instance of perl5.

Today I am carrying a so-called SmartPhone with me which in terms of CPU speed and memory could replace 14 of those pizza boxes. Alas, although it runs a Linux kernel and sports a (presumably) modern JVM, opening my phone rolodex (its Java) sometimes takes about 10 times the time to be responsive compared to the rolodex application I developed on my ancient ELC with perl. That's incredibly slow. Java is, more than anything else, bloat.

perl -le'print map{pack c,($-++?1:13)+ord}split//,ESEL'

In reply to Re^3: Can Perl do anything Java can do? by shmem
in thread Can Perl do anything Java can do? by MikeBraga

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