On Fri, Jun 18, 2021 at 09:54:14AM +0100, Alex Bennée wrote:
>
> Marek Marczykowski-Górecki writes:
>
> > Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
> > which loaded the kernel (and initramfs) byte by byte. Change this
> > to DMA, to load in bigger chunks.
> > This c
On Fri, Jun 18, 2021 at 09:54:14AM +0100, Alex Bennée wrote:
>
> Marek Marczykowski-Górecki writes:
>
> > Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
> > which loaded the kernel (and initramfs) byte by byte. Change this
> > to DMA, to load in bigger chunks.
> > This c
Marek Marczykowski-Górecki writes:
> Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
> which loaded the kernel (and initramfs) byte by byte. Change this
> to DMA, to load in bigger chunks.
> This change alone reduces load time of a (big) kernel+initramfs from
> ~10s down
Kernel on Xen is loaded via fw_cfg. Previously it used non-DMA version,
which loaded the kernel (and initramfs) byte by byte. Change this
to DMA, to load in bigger chunks.
This change alone reduces load time of a (big) kernel+initramfs from
~10s down to below 1s.
This change was suggested initiall