git: openjdk/jdk21u: master: 8307766: Linux: Provide the option to override the timer slack

[Aleksey Shipilev]

Changeset: 53aceba7
Author:    Aleksey Shipilev <shade at openjdk.org>
Date:      2023-08-02 08:18:53 +0000
URL:       https://git.openjdk.org/jdk21u/commit/53aceba71e19bc2a702d96aa54c3fd0f56e94abf

8307766: Linux: Provide the option to override the timer slack

Reviewed-by: stuefe
Backport-of: 7173c3009e0999f13eaa4bee5eedee7326f9d124

! src/hotspot/os/linux/globals_linux.hpp
! src/hotspot/os/linux/os_linux.cpp
+ test/hotspot/jtreg/runtime/os/TestTimerSlack.java