As a representative of domestically produced fully independent CPUs, Loongson has continued to receive optimizations from major software systems after switching to the LoongArch architecture. The recently updated GNU C library glibc version has achieved significant performance improvements. Among the recently merged codes, a specific optimization for the LoongArch architecture has been added to the Git code base.This optimization can enable Transparent Huge Pages (THP) aligned load segments by default for LoongArch64.
After optimization, the load segment of the ELF executable file can be aligned with the THP boundary, which can reduce the pressure on the fast table (TLB) and improve the efficiency of instruction acquisition, thus bringing stable performance improvements when running large binary programs.
What is the performance change after optimization? When compiling the Cargo tool written in Rust on Loongson 3A6000,Test results show that the instruction TLB miss rate plummeted by 72%, the CPU cycles are reduced by 4.7%, and the actual running time (wall time) is saved by about 4.2%. When using LLVM to compile the Linux kernel,Actual running time was reduced by approximately 12%.
Therefore, the default THP aligned load segment mechanism brought by this patch brings significant performance improvements to the LoongArch architecture.
According to previous news, the current Loongson has developed to the Loongson 6000 series, of which the Loongson 3A/B desktop version has 4-8 cores, and the server version Loongson 3C6000 series has a 16- to 64-core architecture. Some typical application scenarios have been implemented in 2025, including dedicated servers and computing servers. Loongson said it hopes to achieve mass sales this year.
It is worth noting that for PC players, Loongson announced an 8-core desktop processor called Loongson B6600 last year. Compared with 3A6000, the process remains unchanged, the structure is optimized, and it is upgraded to LA864.Compared with the LA664 architecture Loongson 3A6000, the same-frequency performance is significantly improved by about 30%.
The main frequency is expected to still be 2.5GHz, but it will master single-core turbo frequency technology, which can generally be increased by another 20%, and will strive to reach 3.0GHz.
It is reported that the single-core and multi-core performance of Loongson 3B6600 can reach the mid-to-high-end level of Intel 12/13 generation Core, which is comparable to the i5 and i7 series and exceeds more than 50% of desktop CPUs sold on the market at that time.
