$ git clone -n https://gitee.com/leacyand/zstd.git /var/lib/mock/dist-an23-build-490773-74523/root/chroot_tmpdir/scmroot/zstd
Cloning into '/var/lib/mock/dist-an23-build-490773-74523/root/chroot_tmpdir/scmroot/zstd'...
$ git fetch origin 7cebc1f0329f18040e268bfcdf532d914585fd41:KOJI_FETCH_HEAD
From https://gitee.com/leacyand/zstd
 * [new ref]         7cebc1f0329f18040e268bfcdf532d914585fd41 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7cebc1f Enable Zicclsm misaligned access for zstd performance optimization Background: Zicclsm extension (mandatory in RVA20U64, supported in GCC 14.1+) enables main memory misaligned loads/stores Test env: SG2044, Linux 6.12.47-25.09.16.17.riscv64, zstd 1.5.7, lzbench 2.1 Performance Results (MEM_FORCE_MEMORY_ACCESS=2 vs 1): zstd -1: Compression 72.0 MB/s (+25.2%), Decompression 93.7 MB/s (+0.3%) zstd -22: Compression 0.24 MB/s (+9.1%), Decompression 71.0 MB/s (+6.3%) Compressed size/ratio unchanged Conclusion: Zicclsm-based misaligned access (MEM_FORCE_MEMORY_ACCESS=2) significantly improves zstd compression speed on RISC-V SG2044, with moderate decompression gain at high levels.