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5499b24dc0
This backports SATA performance boost from 5.3 kernel: 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 SSD using dd bs=4K/8K/12K/16K/20K/24K/32K: peak-perf at 12K] dd bs Before MB/s After MB/s Increase 4k 14.4 16.5 15% 64k 34.5 74.4 116% 1M 40.5 93.2 130% Ref: https://forum.openwrt.org/t/sunxi-sata-write-speed-patch/54555/5 Signed-off-by: Aleksander Jan Bajkowski <A.Bajkowski@stud.elka.pw.edu.pl> [commit subject & description tweaks] Signed-off-by: Petr Štetiar <ynezz@true.cz> |
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| Makefile | ||