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Posted to dev@harmony.apache.org by Lucy <zl...@gmail.com> on 2007/10/23 08:59:58 UTC

Question About "EB_PROF.mode" in client.emconf File

Could you tell me what's the difference between "EB_PROF.mode=SYNC" and
"EB_PROF.mode=ASYNC" in client.emconf File

How this two different modes work?

Re: Question About "EB_PROF.mode" in client.emconf File

Posted by Lucy <zl...@gmail.com>.

Thanks!

2007/10/23, Mikhail Fursov <mi...@gmail.com>:
>
> Lucy,
>
> this option determines the way entry-backedge profile hotness is checked
> in
> runtime.
> In "SYNC" mode JET compiler generates profile hotness checks in every
> method
> prologue.
> In "ASYNC" mode, DRLVM starts separate thread(s) (see EMThreadSupport)
> that
> is responsible to check profiles and emit "profile ready" events.
>
> On 10/23/07, Lucy <zl...@gmail.com> wrote:
> >
> > Could you tell me what's the difference between "EB_PROF.mode=SYNC" and
> > "EB_PROF.mode=ASYNC" in client.emconf File
> >
> > How this two different modes work?
> >
>
>
>
> --
> Mikhail Fursov
>

Re: Question About "EB_PROF.mode" in client.emconf File

Posted by Mikhail Fursov <mi...@gmail.com>.

Lucy,

this option determines the way entry-backedge profile hotness is checked in
runtime.
In "SYNC" mode JET compiler generates profile hotness checks in every method
prologue.
In "ASYNC" mode, DRLVM starts separate thread(s) (see EMThreadSupport) that
is responsible to check profiles and emit "profile ready" events.

On 10/23/07, Lucy <zl...@gmail.com> wrote:
>
> Could you tell me what's the difference between "EB_PROF.mode=SYNC" and
> "EB_PROF.mode=ASYNC" in client.emconf File
>
> How this two different modes work?
>

-- 
Mikhail Fursov