Integrated: 8291840: Avoid JavaCalls for setting up _java_system_loader and _java_platform_loader

[Calvin Cheung]

On Wed, 3 Aug 2022 19:04:56 GMT, Calvin Cheung <ccheung at openjdk.org> wrote:

> Please review this small optimization for setting up the `_java_system_loader `and `_java_platform_loader`.
> 
> I saw startup perf improvements with HelloWorld on linux-x64 like the following:
> 
> 
> instr delta =      -102248    -0.1226%
> time  delta =       -0.125 ms -0.3507%
> 
> 
> Passed tiers 1,2,3 testing.

This pull request has now been integrated.

Changeset: 27c88260
Author:    Calvin Cheung <ccheung at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/27c8826090135c0bd7719a4455bf6f8675b691d6
Stats:     65 lines in 4 files changed: 59 ins; 1 del; 5 mod

8291840: Avoid JavaCalls for setting up _java_system_loader and _java_platform_loader

Reviewed-by: coleenp, iklam

-------------

PR: https://git.openjdk.org/jdk/pull/9734