Integrated: 8255756: Disabling logging does unnecessary work

[Claes Redestad]

On Mon, 2 Nov 2020 12:43:42 GMT, Claes Redestad <redestad at openjdk.org> wrote:

> When disabling UL outputs - for example when shutting down the JVM - we are doing some unnecessary work:
> 
> - we always disable all outputs in bulk, but the routine searches up outputs one by one in the LogTagSet output lists - instead we could just drop all nodes in these lists in one quick pass.
> - when finalizing for a JVM shutdown, it's unnecessary to update decorators
> 
> While not technically startup this gets rid of some noise on JVM exit (~45k instructions) that show up when using full JVM executions as a proxy for startup testing (or when running many shortlived JVMs back-to-back).

This pull request has now been integrated.

Changeset: e66fd6f0
Author:    Claes Redestad <redestad at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/e66fd6f0
Stats:     50 lines in 5 files changed: 32 ins; 4 del; 14 mod

8255756: Disabling logging does unnecessary work

Reviewed-by: iklam

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PR: https://git.openjdk.java.net/jdk/pull/1005