<s>
Resin	B-Language
is	O
a	O
web	B-Application
server	I-Application
and	O
Java	B-Device
application	B-Application
server	I-Application
from	O
Caucho	O
Technology	O
.	O
</s>
<s>
In	O
addition	O
to	O
Resin	B-Language
(	O
GPL	B-License
)	O
,	O
Resin	B-Language
Pro	O
is	O
available	O
for	O
enterprise	O
and	O
production	O
environments	O
with	O
a	O
license	O
.	O
</s>
<s>
Resin	B-Language
supports	O
the	O
Java	B-Language
EE	I-Language
standard	O
as	O
well	O
as	O
a	O
mod_php/PHP	B-Application
like	O
engine	O
called	O
Quercus	O
.	O
</s>
<s>
While	O
Resin	B-Language
(	O
GPL	B-License
)	O
is	O
free	O
for	O
use	O
in	O
production	O
,	O
Resin	B-Language
Pro	O
includes	O
optimizations	O
such	O
as	O
:	O
</s>
<s>
Although	O
a	O
Java-based	O
server	O
,	O
key	O
pieces	O
of	O
Resin	B-Language
's	O
core	O
networking	O
are	O
written	O
in	O
highly	O
optimized	O
C	O
.	O
Caucho	O
states	O
Java	B-Device
is	O
the	O
layer	O
that	O
allows	O
Resin	B-Language
to	O
be	O
"	O
full	O
featured	O
"	O
while	O
C	O
provides	O
the	O
speed	O
.	O
</s>
<s>
Resin	B-Language
,	O
which	O
was	O
released	O
in	O
1999	O
,	O
predates	O
Apache	O
Tomcat	O
,	O
and	O
is	O
one	O
of	O
the	O
most	O
mature	O
application	B-Application
servers	I-Application
and	O
web	B-Application
servers	I-Application
.	O
</s>
<s>
Resin	B-Language
Pro	O
has	O
been	O
engineered	O
to	O
include	O
:	O
</s>
<s>
Compiled	B-Language
PHP	B-Application
on	O
the	O
JVM	O
-	O
Improves	O
performance	O
,	O
scalability	O
and	O
security	O
of	O
PHP	B-Application
applications	O
by	O
allowing	O
PHP	B-Application
code	O
to	O
directly	O
call	O
Java	B-Device
Objects	O
.	O
</s>
<s>
Proxy	O
cache	O
-	O
Faster	O
application	O
performance	O
is	O
possible	O
with	O
Java	B-Device
caching	O
by	O
saving	O
the	O
results	O
of	O
long	O
calculations	O
and	O
reducing	O
database	O
load	O
and	O
application	O
response	O
time	O
.	O
</s>
<s>
Java	B-Language
EE	I-Language
Web	O
Profile	O
certified	O
,	O
</s>
<s>
Resin	B-Language
's	O
market	O
share	O
is	O
small	O
in	O
the	O
grand	O
scheme	O
of	O
Java	B-Device
Application	B-Application
Servers	I-Application
,	O
but	O
some	O
high	O
traffic	O
sites	O
use	O
it	O
,	O
such	O
as	O
Toronto	O
Stock	O
Exchange	O
,	O
Salesforce.com,	O
Condé	O
Nast	O
(	O
parent	O
company	O
of	O
Wired	O
,	O
Vogue	O
,	O
GQ	O
)	O
,	O
CNET	O
.	O
</s>
<s>
NetCraft	O
's	O
February	O
2012	O
Survey	O
stated	O
Resin	B-Language
grew	O
to	O
4,700,000	O
sites	O
;	O
Resin	B-Language
was	O
the	O
only	O
Java-based	O
web	B-Application
server	I-Application
mentioned	O
.	O
</s>
<s>
At	O
every	O
level	O
Resin	B-Language
matched	O
or	O
exceeded	O
nginx	B-Operating_System
web	I-Operating_System
server	I-Operating_System
performance	O
.	O
</s>
<s>
Quercus	O
is	O
a	O
Java-based	O
implementation	O
of	O
the	O
PHP	B-Application
language	I-Application
that	O
is	O
included	O
with	O
Resin	B-Language
.	O
</s>
<s>
According	O
to	O
a	O
slideshow	O
presented	O
by	O
Emil	O
Ong	O
(	O
from	O
Caucho	O
)	O
,	O
to	O
a	O
San	O
Francisco	O
Java	B-Device
Meetup	O
Group	O
in	O
April	O
2008	O
pertaining	O
to	O
Resin	B-Language
3.1	O
,	O
an	O
essential	O
difference	O
in	O
the	O
operation	O
of	O
Quercus	O
between	O
the	O
Resin	B-Language
Open	O
Source	O
and	O
the	O
Resin	B-Language
Professional	O
editions	O
is	O
that	O
in	O
Resin	B-Language
Professional	O
the	O
PHP	B-Application
is	O
compiled	B-Language
to	O
Java	B-Device
bytecode	O
whereas	O
in	O
the	O
open	O
source	O
version	O
PHP	B-Application
is	O
executed	O
by	O
an	O
interpreter	B-Application
.	O
</s>
<s>
Caucho	O
stated	O
in	O
2007	O
that	O
Quercus	O
was	O
faster	O
than	O
standard	O
PHP	B-Application
5	O
(	O
PHP	B-Application
8	O
with	O
JIT	O
is	O
much	O
faster	O
than	O
older	O
PHP	B-Application
versions	O
;	O
PHP	B-Application
5	O
is	O
no	O
longer	O
supported	O
)	O
although	O
this	O
is	O
only	O
true	O
for	O
the	O
JIT-compiled	O
version	O
in	O
Resin	B-Language
Professional	O
.	O
</s>
<s>
Quercus	O
ships	O
with	O
Resin	B-Language
.	O
</s>
<s>
One	O
license	O
covers	O
all	O
components	O
of	O
the	O
Resin	B-Language
architecture	O
.	O
</s>
<s>
Resin	B-Language
is	O
provided	O
in	O
both	O
an	O
open	O
source	O
GPL	B-License
license	I-License
and	O
a	O
Pro	O
version	O
with	O
enhancements	O
for	O
enterprises	O
.	O
</s>
