On 3/26/23 2:07 PM, ryuukk_ wrote:
Hi,
It's common knowledge that accessing tls global is slow
http://david-grs.github.io/tls_performance_overhead_cost_linux/
What i do not understand is the reasoning behind choosing tls global by
default in D
If you know a variable is not `shared`, then you know it can only be
accessed from the current thread. This has huge implications for thread
access.
However, one problem that D has no good solution is passing thread-local
data to another thread (to be owned by the new thread, and no access in
the current thread). That's typically the most common use case for
"shared data".
-Steve
