On 8/2/23 08:27, Jeff Moyer wrote:
> Christoph Hellwig writes:
>
>> Given that pmem simply loops over an arbitrarily large bio I think
>> we also need a threshold for which to allow nowait I/O. While it
>> won't block for giant I/Os, doing all of them in the submitter
>> context isn't exactly the
On 8/2/23 08:36, Jens Axboe wrote:
> On 8/2/23 6:30?AM, Christoph Hellwig wrote:
>> Given that pmem simply loops over an arbitrarily large bio I think
>> we also need a threshold for which to allow nowait I/O. While it
>> won't block for giant I/Os, doing all of them in the submitter
>> context is
On 8/2/23 05:30, Christoph Hellwig wrote:
> Given that pmem simply loops over an arbitrarily large bio I think
> we also need a threshold for which to allow nowait I/O. While it
> won't block for giant I/Os, doing all of them in the submitter
> context isn't exactly the idea behind the nowait I/O.
On Wed, Aug 02, 2023 at 09:36:32AM -0600, Jens Axboe wrote:
> You can do a LOT of looping over a giant bio and still come out way
> ahead compared to needing to punt to a different thread. So I do think
> it's the right choice. But I'm making assumptions here on what it looks
> like, as I haven't s
On 8/2/23 6:30?AM, Christoph Hellwig wrote:
> Given that pmem simply loops over an arbitrarily large bio I think
> we also need a threshold for which to allow nowait I/O. While it
> won't block for giant I/Os, doing all of them in the submitter
> context isn't exactly the idea behind the nowait I/
Christoph Hellwig writes:
> Given that pmem simply loops over an arbitrarily large bio I think
> we also need a threshold for which to allow nowait I/O. While it
> won't block for giant I/Os, doing all of them in the submitter
> context isn't exactly the idea behind the nowait I/O.
>
> I'm not r
Given that pmem simply loops over an arbitrarily large bio I think
we also need a threshold for which to allow nowait I/O. While it
won't block for giant I/Os, doing all of them in the submitter
context isn't exactly the idea behind the nowait I/O.
I'm not really sure what a good theshold would b
