1. Social
network
informa0on
http://twitter.com/jefersonm https://github.com/jefersonm/
Jéferson Machado
So#ware
Design
http://facebook.com/jefe.machado http://slideshare.net/jefersonm

2. JVM Container

3. Kresten Krab Thorup

4. CTO – Responsible for technical strategy, researching
future technologies, and JAOO and Qconconferences.

5. GCC gcj
GNU Objective-C
Objective-C

9. Benchmarks

11. Erlang file
console
File system

12. Does it work ?
• It
can
boot
Erlang/OTP
to
the
Eshell
(ej
command).
• There's
a
GUI
console
(ejc
command)
which
supports
^G
and
line
edi0ng.
The
console
s0ll
needs
some
work
[Swing
wizards
welcome
here].
• Run
Erlang
distribu0on,
tcp/ip,
port
commands
(stdio
to
external
processes).
• You
can
run
the
compiler
(c(foo)
command
in
the
prompt)
• It
runs
mnesia
with
distribu0on
across
Erjang/BEAM
nodes.
• The
HTTP
packet
parsers
are
in
the
tcp/ip
stack,
so
mochiweb
and
webmachine
can
run
(without
crypto
for
now).
• Larger
systems
like
rabbitmq
and
riak
can
boot;
and
works
for
basic
cases
...
but
it's
not
ready
for
prime
0me
yet.
• Etc.
etc.
Lot's
of
stuff
work.

13. BUT!!!
• A
few
BEAM
instruc0on
are
missing
some
run0me
support.
• There
are
also
BIFs
missing,
or
only
par0ally
implemented;
we're
quite
careful
to
throw
@erjang.NotImplemented@
in
BIFs
(or
branches
thereof)
which
are
not
complete.
• Many
OTP
modules
need
NIFs
or
linked-­‐in
drivers
that
are
en0rely
missing
or
only
partly
implemented.

14. References
• https://github.com/trifork/erjang
• http://www.infoq.com/presentations/Erjang-A-JVM-
based-Erlang-VM
• http://www.javalimit.com/2009/12/erjang-why.html
• http://learnyousomeerlang.com/contents

15. Questions ???
Social
network
informa0on
http://twitter.com/jefersonm https://github.com/jefersonm/
Jéferson Machado
So#ware
Design
http://facebook.com/jefe.machado http://slideshare.net/jefersonm