Re: [PATCH/RESEND v2 0/2] SATA disk resume time optimization

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On 10/17/2013 03:33 PM, Todd E Brandt wrote:
> The essential issue behind hard disks' lengthy resume time is the
> ata port driver blocking until the ATA port hardware is finished
> coming online. So the kernel isn't really doing anything during all
> those seconds that the disks are resuming, it's just blocking until
> the hardware says it's ready to accept commands. Applying this
> patch set

I have been working in a similar direction and have patches to follow.
 Instead of backgrounding the start in sd_resume, I have removed it
entirely, and background the resume at the ata port layer, as well as
avoid resuming Power on in Standby disks entirely.


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