On Jan 2, 2011, at 9:13 AM, Marek Kubica wrote:
But in theory it could be posible to collect run-time data in one run,
then JIT code at startup, using that collected data and current
procesor architecture.
Something like this is already used in practice, it is called
Profile-Guided
On 2 Jan 2011, at 03:29, Sunil S Nandihalli wrote:
can I force the JIT to be called immediately for certain pieces of
code after it starts executing with out waiting for the JVM realize
it is necessary? I would not mind jitting the whole code ..
Actually I don't mind waiting a few
thanks you all for your feedback .. but I had implemented something in
clojure which I knew would be much faster in say c++ .. and now was
regretting it .. and was really looking at all weird locations in
desperation.. but now I realized I was doing something in a very wrong
inefficient
On 2 Sty, 12:01, Konrad Hinsen konrad.hin...@fastmail.net wrote:
On 2 Jan 2011, at 03:29, Sunil S Nandihalli wrote:
can I force the JIT to be called immediately for certain pieces of
code after it starts executing with out waiting for the JVM realize
it is necessary? I would not
On Sun, 2 Jan 2011 05:41:08 -0800 (PST)
ajuc aju...@gmail.com wrote:
But in theory it could be posible to collect run-time data in one run,
then JIT code at startup, using that collected data and current
procesor architecture.
Something like this is already used in practice, it is called
You can change the number of times code must be run before it is
compiled with this flag:
-XX:CompileThreshold=1
The default is 1500 in the client hotspot and 1 in server
hotspot.
Of course, you should probably not muck with this unless you are
feeling kinda wild and crazy.
On Jan 1,
Hello Everybody,
can I force the JIT to be called immediately for certain pieces of code
after it starts executing with out waiting for the JVM realize it is
necessary? I would not mind jitting the whole code .. Actually I don't
mind waiting a few extra seconds at the start since actual
On Jan 1, 8:29 pm, Sunil S Nandihalli sunil.nandiha...@gmail.com
wrote:
Hello Everybody,
can I force the JIT to be called immediately for certain pieces of code
after it starts executing with out waiting for the JVM realize it is
necessary? I would not mind jitting the whole code ..
Even if the JVM put the code through the compiler right away, the
resulting code wouldn't be very good because it will have not had time
to profile code to apply the more powerful optimizations. It would be
throwing all of that code away once it has had time to profile the
code, so any time
