United StatesChange Country, Oracle Worldwide Web Sites Communities I am a... I want to...
Bug ID: JDK-6709093 Compressed Oops: reduce size of compiled methods
JDK-6709093 : Compressed Oops: reduce size of compiled methods

Details
Type:
Enhancement
Submit Date:
2008-05-30
Status:
Resolved
Updated Date:
2010-06-26
Project Name:
JDK
Resolved Date:
2008-06-12
Component:
hotspot
OS:
solaris_10
Sub-Component:
compiler
CPU:
x86
Priority:
P4
Resolution:
Fixed
Affected Versions:
hs13
Fixed Versions:
hs13 (b02)

Related Reports
Backport:
Backport:
Relates:

Sub Tasks

Description
There is ~60% regression in monte_carlo due to not inlining
nextDouble() method and, as result, not (EA) scalarizing Random object.
The method is not inlinined since the size of its compiled
code > 1000 (inlining threshold) because of additional
encoding/decoding instructions.

                                    

Comments
EVALUATION

Exclude UEP size from nmethod code size.
Use addressing through narrow oop to get prototype header.
                                     
2008-06-10



Hardware and Software, Engineered to Work Together