> On May 16, 2016, at 11:33 AM, Stefan Hajnoczi wrote:
>
> The way it's done in the "null" block driver is:
>
> static coroutine_fn int null_co_common(BlockDriverState *bs)
> {
>BDRVNullState *s = bs->opaque;
>
>if (s->latency_ns) {
>co_aio_sleep_ns(bdrv_get_aio_context(bs), QE
On Thu, May 12, 2016 at 09:27:42AM -0500, Huaicheng Li wrote:
> My goal is to add latency for each I/O without blocking the submission path.
> Now
> I can know how long each I/O should wait before it’s submitted to the AIO
> queue
> via a model. Now the question is how can I make the I/O wait f
Hi all,
My goal is to add latency for each I/O without blocking the submission path.
Now
I can know how long each I/O should wait before it’s submitted to the AIO queue
via a model. Now the question is how can I make the I/O wait for that long time
before it’s finally handled by worker threads.
