forcing "@nogc" on class destructors
via Digitalmars-d
digitalmars-d at puremagic.com
Wed Jan 21 02:39:02 PST 2015
On Wednesday, 21 January 2015 at 10:00:21 UTC, deadalnix wrote:
>> 1. less efficient codegen + restrictions related to FFI
>
> No.
How would that work? You cannot trace pointers that stay in
registers. You also cannot do precise unwinding of FFI stacks.
>> 3. intermittent pauses
>
> I think you don't quite get what concurrent is about.
Parallel: running simultaneously
Concurrent: parallel and/or interleaving
C# use intermittent pauses/parallel
https://msdn.microsoft.com/en-us/library/ee787088(v=vs.110).aspx#concurrent_garbage_collection
>> 4. random cache pollution
>
> If you have a multicore (and you have one) no.
Multicore won't help on cache level 3. (hyper-threading cores
share cache too)
>> Inconvenient if you try to get the most out of the hardware.
>
> This is all the contrary. As you may have noticed, most memory
> allocation intensive benchmark in Java tend to outperform their
> C++ counter part.
Malloc is not fast. If you want performance you use O(1)
allocators/deallocators. Bogus benchmarks to make Java look good
are not convincing.
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