> In summary, the problem is that 'zswpwb' does not update when zswap is > executed > under the zstd algorithm. I'd debugging this issue separately from the kernel > side.
I forgot to mention, this issue only observed on systems with a 64K pagesize (ppc64le, aarch64). I changed the aarch64 page size to 4K, and it passed the test every time. -- Regards, Li Wang

