For depth I am using 5 as the limit, but it is just a rough guess based on
empirical comparisons of chained GWT versus our inline cache. I need to
reevaluate with recent patches in place.
By "wipe out" I mean clear the call site's target and start over with a new GWT
chain.
- Charlie (mobile)
>From Charlie
* If we encounter a new type at a call site and have not exceeded our
GWT cascade limit, we add it to the chain.
* If we exceed the limit of GWT chaining, wipe out the site and switch
it permanently to an inline cache
Charlie, what is the depth limit you set and how did you arrive
On Tue, Aug 9, 2011 at 2:43 PM, Tom Rodriguez wrote:
>> Same numbers. Is there some other patch you have applied locally?
>> What's the best way for me to investigate?
>
> Can you collect PrintCompilation/PrintInlining output for each of these?
I shall, if I can reproduce it again. I've moved on
On Aug 9, 2011, at 12:02 PM, Charles Oliver Nutter wrote:
> On Tue, Aug 9, 2011 at 2:31 PM, Charles Oliver Nutter
> wrote:
>> On Tue, Aug 9, 2011 at 4:30 AM, Christian Thalinger
>> wrote:
>>> Hmm. I remember you were saying this is some old Ultra 20. The only box I
>>> could find which is si
On Tue, Aug 9, 2011 at 2:31 PM, Charles Oliver Nutter
wrote:
> On Tue, Aug 9, 2011 at 4:30 AM, Christian Thalinger
> wrote:
>> Hmm. I remember you were saying this is some old Ultra 20. The only box I
>> could find which is similar is a 2.0GHz Quad-core Opteron running Solaris
>> and I can't
On Tue, Aug 9, 2011 at 4:30 AM, Christian Thalinger
wrote:
> Hmm. I remember you were saying this is some old Ultra 20. The only box I
> could find which is similar is a 2.0GHz Quad-core Opteron running Solaris and
> I can't confirm your numbers.
Hmm, interesting. I'll give it another shot to
On Aug 9, 2011, at 7:58 AM, Charles Oliver Nutter wrote:
> I have set up a local build against "hsx" hotspot compiler dev branch,
> thanks to Christian. I'll try to write something up with the process
> tomorrow.
>
> Anyway, I wanted to test out Tom's patch for GWT bimorphic inlining
> and Chris
I have set up a local build against "hsx" hotspot compiler dev branch,
thanks to Christian. I'll try to write something up with the process
tomorrow.
Anyway, I wanted to test out Tom's patch for GWT bimorphic inlining
and Christian's patch for push invalidation of mutable call sites. The
results w
