[prev in list] [next in list] [prev in thread] [next in thread] 

List:       openjdk-hotspot-runtime-dev
Subject:    Integrated: 8330181: Move PcDesc cache from nmethod header
From:       Vladimir Kozlov <kvn () openjdk ! org>
Date:       2024-04-25 22:50:42
Message-ID: KbTScPoBkSs5i46u3eske1iPsZMxjhIeNQhpXtUbejg=.a3e931a4-70b3-41fc-bf53-84997f69af76 () github ! com
[Download RAW message or body]

On Mon, 22 Apr 2024 16:54:40 GMT, Vladimir Kozlov <kvn@openjdk.org> wrote:

> Currently PcDescCache (32 bytes in 64-bit VM: PcDesc* _pc_descs[4]) is allocated in \
> `nmethod` header. 
> Moved PcDescContainer (which includes cache) to C heap similar to ExceptionCache to \
> reduce size of `nmethod` header and to remove WXWrite transition when we update the \
> cache in `PcDescCache::add_pc_desc()`. 
> Removed `PcDescSearch` class which was leftover from `CompiledMethod` days.
> 
> Tested tier1-4,stress,xcomp and performance.

This pull request has now been integrated.

Changeset: b3bcc494
Author:    Vladimir Kozlov <kvn@openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/b3bcc49491b8f8ad337eb4c06201a5468e5c1159
                
Stats:     120 lines in 4 files changed: 42 ins; 36 del; 42 mod

8330181: Move PcDesc cache from nmethod header

Reviewed-by: dlong, jrose

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

PR: https://git.openjdk.org/jdk/pull/18895


[prev in list] [next in list] [prev in thread] [next in thread]