now open: Hotspot internals wiki
John.Rose at Sun.COM
Tue Apr 15 23:23:22 PDT 2008
I have started a wiki called "Hotspot Internals" to help us
document and shape Hotspot's implementation architecture.
To get the ball rolling, I put in some pages listing clever Hotspot
optimizations (as many as I could think of) and some stuff about
microbenchmarks and the new PrintAssembly functionality, which
lets developers inspect the output of the JIT (even in product mode).
Eventually the content will probably be rehosted on openjdk.java.net,
but for now it's on wikis.sun.com.
Identity management is manual, but I would be very glad to set you up
as an author if you wish to contribute implementation insights. (Sun
emps. are I think automatically authorized; no surprise.) Page
comments are open to anybody (...that logs in; no anonymous
comments), so if you have a question rather than a contribution,
please consider putting it in the form of a page comment.
At Sun we have many internal wiki pages on various aspects of Hotspot
internals, and much of this is still fresh, non-confidential, and
worth republishing outside the company firewall. If each Sun
engineer were to push out his or her favorite Hotspot internal
architecture page (and maybe blog about it to boot), our non-Sun
colleagues would have some interesting and enjoyable new reading...
-- John Rose
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