On Sat, Nov 21, 2020 at 02:13:21PM +, David Howells wrote:
> I had a go switching the iov_iter stuff away from using a type bitmask to
> using an ops table to get rid of the if-if-if-if chains that are all over
> the place. After I pushed it, someone pointed me at Pavel's two patches.
>
> I
On Sat, Nov 21, 2020 at 6:13 AM David Howells wrote:
>
> Can someone recommend a good way to benchmark this properly? The problem
> is that the difference this makes relative to the amount of time taken to
> actually do I/O is tiny.
Maybe try /dev/zero -> /dev/null to try a load where the IO
On 21/11/2020 14:13, David Howells wrote:
>
> Hi Pavel, Willy, Jens, Al,
>
> I had a go switching the iov_iter stuff away from using a type bitmask to
> using an ops table to get rid of the if-if-if-if chains that are all over
> the place. After I pushed it, someone pointed me at Pavel's two
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