Re: [PATCH v3] drivers: ata: ahci_sunxi: Increased SATA/AHCI DMA TX/RX FIFOs

2019-07-05 Thread Jens Axboe
On 5/13/19 8:24 AM, Uenal Mutlu wrote: > Increasing the SATA/AHCI DMA TX/RX FIFOs (P0DMACR.TXTS and .RXTS, ie. > TX_TRANSACTION_SIZE and RX_TRANSACTION_SIZE) from default 0x0 each > to 0x3 each, gives a write performance boost of 120 MiB/s to 132 MiB/s > from lame 36 MiB/s to 45 MiB/s previously. >

Re: [linux-sunxi] [PATCH v3] drivers: ata: ahci_sunxi: Increased SATA/AHCI DMA TX/RX FIFOs

2019-07-05 Thread Chen-Yu Tsai
On Mon, May 13, 2019 at 10:24 PM Uenal Mutlu wrote: > > Increasing the SATA/AHCI DMA TX/RX FIFOs (P0DMACR.TXTS and .RXTS, ie. > TX_TRANSACTION_SIZE and RX_TRANSACTION_SIZE) from default 0x0 each > to 0x3 each, gives a write performance boost of 120 MiB/s to 132 MiB/s > from lame 36 MiB/s to 45 MiB

[PATCH v3] drivers: ata: ahci_sunxi: Increased SATA/AHCI DMA TX/RX FIFOs

2019-05-13 Thread Uenal Mutlu
Increasing the SATA/AHCI DMA TX/RX FIFOs (P0DMACR.TXTS and .RXTS, ie. TX_TRANSACTION_SIZE and RX_TRANSACTION_SIZE) from default 0x0 each to 0x3 each, gives a write performance boost of 120 MiB/s to 132 MiB/s from lame 36 MiB/s to 45 MiB/s previously. Read performance is above 200 MiB/s. [tested on