News Chinese chipmaker tapes out 16-core DragonChain-powered CPU, 64-core coming — Loongson LS3C6000 server processor will rival Zen 3 CPUs

[Admin]

Loongson tapes out the 16-core/32-thread LS 3C6000 CPU, preps 32-core and 64-core processors.

Chinese chipmaker tapes out 16-core DragonChain-powered CPU, 64-core coming — Loongson LS3C6000 server processor will rival Zen 3 CPUs : Read more

 

[Shirley Marquez]

Another question is whether compilers for Loongson's instruction set (which from the reports I have seen is a fork of MIPS) are mature yet. Even if their CPUs are theoretically equal in performance to x86 and ARM, they could be held back by inadequate compilers that do not optimize well.

Nonetheless, it's a significant achievement for Loongson.

 

[bit_user]

Another question is whether compilers for Loongson's instruction set (which from the reports I have seen is a fork of MIPS) are mature yet.

They've been upstreaming GCC patches, for a couple years at least. Decent GCC support is needed to build the Linux kernel (though, it also compiles with LLVM, on at least some architectures). I don't know where LLVM support for Loongson stands, but LLVM doesn't have a major performance lead over GCC, overall.

Even if their CPUs are theoretically equal in performance to x86 and ARM, they could be held back by inadequate compilers that do not optimize well.

I think their ISA is similar enough to what has come before that GCC should be pretty good at optimizing for it.