[okl4-developer] Is there a JVM available ?
G S Madhusudan
mail at gsmadhusudan.info
Wed Jun 4 16:43:02 EST 2008
Has anybody ported a JVM to OKL4 (or any L4 variant for that matter) ?
I have seen a few student projects but no indication of running code
(or at least none that is publicly available).
On a larger note, I think a repository of native L4 applications
would help. It is time we get people to write apps on top
of the various L4 variants ! While hacking L4 is fun, getting people
to use L4 depends on apps availability. Linux apps on
top of Wombat do not count since that does not really leverage
L4 features. A list of certified wombat apps may be a start but
apps should at least be encouraged to use some L4 apis directly.
e.g Postgres on L4 has some major advantages (especially in areas
like data type extension where user defined data types can be created in
a more secure fashion using L4 IPC). I attempted a port of the Sybase
database
on Mach 3 (the version that ran under the OS/2 workplace OS) way back in
the 90s. The micro-kernel architecture helped solve some critical arch.
issues
that could not be solved with a monolithic OS but unfortunately IBM pulled
the plug on the Mach effort. But the lessons learnt are valid for L4.
And no,
Mach's performance issues were really not that big a deal ! The
additional features,
resource usage optimization, granularity of OS functions and security
more than
compensated for the drop in performance.
Would at least be a start to hear what apps are being developed on L4.
Madhu
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