On 3/15/25 17:23, Sidong Yang wrote:
This patche series introduce io_uring_cmd_import_vec. With this function, Multiple fixed buffer could be used in uring cmd. It's vectored version for io_uring_cmd_import_fixed(). Also this patch series includes a usage for new api for encoded read/write in btrfs by using uring cmd. There was approximately 10 percent of performance improvements through benchmark. The benchmark code is in https://github.com/SidongYang/btrfs-encoded-io-test/blob/main/main.c ./main -l Elapsed time: 0.598997 seconds ./main -l -f Elapsed time: 0.540332 seconds
It's probably precise, but it's usually hard to judge about performance from such short runs. Mark, do we have some benchmark for the io_uring cmd? -- Pavel Begunkov
