[ofa-general] SRP/mlx4 interrupts throttling performance

[Vladislav Bolkhovitin]

Cameron Harr wrote:
> Vladislav Bolkhovitin wrote:
>> I guess, you use a regular caching IO? The lowest packet size it can 
>> produce is a PAGE_SIZE (4K). Target can't change it. You can have 
>> lower packets only with O_DIRECT or sg interface. But I'm not sure it 
>> will be performance effective.
> I do everything with Direct IO, which is automatic when using the 
> BLOCKIO method in SCST.

I meant on initiator(s), not on the target.

>> I'd recommend you to use 4K packets and deadline IO scheduler. 
> I've tried this before, but can probably set it as my default config.
> 
> -Cameron
>