Re: [PATCH V9 0/4] fuse: Add support for passthrough read/write

[Miklos Szeredi]

On Thu, Sep 24, 2020 at 3:13 PM Alessio Balsini <balsini@xxxxxxxxxxx> wrote:

> The first benchmarks were done by running FIO (fio-3.21) with:
> - bs=4Ki;
> - file size: 50Gi;
> - ioengine: sync;
> - fsync_on_close: true.
> The target file has been chosen large enough to avoid it to be entirely
> loaded into the page cache.
> Results are presented in the following table:
>
> +-----------+--------+-------------+--------+
> | Bandwidth |  FUSE  |     FUSE    |  Bind  |
> |  (KiB/s)  |        | passthrough |  mount |
> +-----------+--------+-------------+--------+
> | read      | 468897 |      502085 | 516830 |
> +-----------+--------+-------------+--------+
> | randread  |  15773 |       26632 |  21386 |


Have you looked into why passthrough is faster than native?

Thanks,
Miklos