[Issue 15270] New: use TLS to store Thread.getThis (pthread_getspecific causes heavy lock contention)

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=15270

          Issue ID: 15270
           Summary: use TLS to store Thread.getThis (pthread_getspecific
                    causes heavy lock contention)
           Product: D
           Version: D2
          Hardware: All
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P1
         Component: druntime
          Assignee: nobody at puremagic.com
          Reporter: code at dawg.eu

Before 2.066 Thread.getThis() was stored in a plain TLS variable.
In order to fix issue 11981 this was changed to use pthread_getspecific.
Apparently this is a huge performance issue (see
https://github.com/D-Programming-Language/druntime/pull/1419).

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