Go 1.5
Martin Nowak via Digitalmars-d-announce
digitalmars-d-announce at puremagic.com
Wed Sep 23 17:08:40 PDT 2015
On 09/18/2015 09:26 PM, Rory wrote:
> The new GC in Go 1.5 seems interesting. What they say about is certainly
> interesting.
>
> http://blog.golang.org/go15gc
>
> "To create a garbage collector for the next decade, we turned to an
> algorithm from decades ago. Go's new garbage collector is a concurrent,
> tri-color, mark-sweep collector, an idea first proposed by Dijkstra in
> 1978."
A concurrent collector for sure reduces latency but lowers the
throughput and also steals memory bandwidth from your program.
It also requires write-barriers and we decided against them b/c they
slow down every program by ~5%. Though it might be somehow possible to
make them optional only for the people using a concurrent GC.
The key to a low latency/high throughput GC is being able to
incrementally collect the heap. There is a very interesting paper that
uses the type system to perform incremental collections.
http://forum.dlang.org/post/mcqr3s$cmf$1@digitalmars.com
More information about the Digitalmars-d-announce
mailing list