It's 192 bytes, fairly substantial. Most items don't need to be cleared,
especially not upfront. Clear the ones we do need to clear, and leave
the other ones for setup when the iocb is prepared and submitted.
Reviewed-by: Christoph Hellwig
Signed-off-by: Jens Axboe
---
fs/aio.c | 9 +++--
On 12/6/18 12:38 PM, Jeff Moyer wrote:
> Jens Axboe writes:
>
>> On 12/6/18 12:27 PM, Jeff Moyer wrote:
>>> Jens Axboe writes:
>>>
It's 192 bytes, fairly substantial. Most items don't need to be cleared,
especially not upfront. Clear the ones we do need to clear, and leave
the
Jens Axboe writes:
> On 12/6/18 12:27 PM, Jeff Moyer wrote:
>> Jens Axboe writes:
>>
>>> It's 192 bytes, fairly substantial. Most items don't need to be cleared,
>>> especially not upfront. Clear the ones we do need to clear, and leave
>>> the other ones for setup when the iocb is prepared and
On 12/6/18 12:27 PM, Jeff Moyer wrote:
> Jens Axboe writes:
>
>> It's 192 bytes, fairly substantial. Most items don't need to be cleared,
>> especially not upfront. Clear the ones we do need to clear, and leave
>> the other ones for setup when the iocb is prepared and submitted.
>
> What
Jens Axboe writes:
> It's 192 bytes, fairly substantial. Most items don't need to be cleared,
> especially not upfront. Clear the ones we do need to clear, and leave
> the other ones for setup when the iocb is prepared and submitted.
What performance gains do you see from this?
-Jeff
>
