[PATCH 0/4] iopoll support for io_uring/nvme passthrough

[Jens Axboe]

On 8/5/22 9:42 AM, Kanchan Joshi wrote:
> Hi,
> 
> Series enables async polling on io_uring command, and nvme passthrough
> (for io-commands) is wired up to leverage that.
> 
> 512b randread performance (KIOP) below:
> 
> QD_batch    block    passthru    passthru-poll   block-poll
> 1_1          80        81          158            157
> 8_2         406       470          680            700
> 16_4        620       656          931            920
> 128_32      879       1056        1120            1132

Curious on why passthru is slower than block-poll? Are we missing
something here?

-- 
Jens Axboe