RFR: 8229517: Support for optional asynchronous/buffered logging

[Volker Simonis]

On Thu, 25 Mar 2021 12:21:44 GMT, Yasumasa Suenaga <ysuenaga at openjdk.org> wrote:

>> This patch provides a buffer to store asynchrounous messages and flush them to
>> underlying files periodically.
>
> src/hotspot/share/runtime/globals.hpp line 2036:
> 
>> 2034:           "Enble asynchronous GC logging")                                  \
>> 2035:                                                                             \
>> 2036:   product(size_t, GCLogBufferSize, 2*K,                                     \
> 
> This PR is for UL, not only GC log. So it should be renamed.

Agree, this should be something like "AsyncLoggingBufferSize".

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PR: https://git.openjdk.java.net/jdk/pull/3135