Comparing wireless performance between CE 19's vendor kernel (4.9) & LE 11 mainline noticing wireless performance drop-off of at least 1/. I am using a tweaked DTS based on the p231 one for testing.
Here is dmesg, iperf3 results, and /sys/kernel/debug/{mmc2,sdio}/ios.
LE 11 - 5.16.1 - MMC @ 50Mhz (same as p231, except for capabilities):
LE11 - 5.16.1 - MMC @ 100MHz:
CE 19 - 4.9.113 (vendor kernel) - MMC @ 100MHz (in DT, but debug says 200MHz):
Here is the DTS I am working with so far:
C
/dts-v1/;
#include "meson-gxl-s905d-p231.dts"
/ {
compatible = "osmc,vero-4k-plus", "amlogic,s905d", "amlogic,meson-gxl";
model = "OSMC Vero 4K+";
leds {
compatible = "gpio-leds";
led-power {
label = "power";
gpios = <&gpio_ao GPIOAO_9 GPIO_ACTIVE_HIGH>;
default-state = "on";
};
};
};
/* SDIO */
&sd_emmc_a {
cap-sd-highspeed;
sd-uhs-sdr12;
sd-uhs-sdr25;
sd-uhs-sdr50;
sd-uhs-sdr104;
max-frequency = <100000000>;
};
&uart_A {
status = "okay";
pinctrl-0 = <&uart_a_pins>, <&uart_a_cts_rts_pins>;
pinctrl-names = "default";
uart-has-rtscts;
bluetooth {
compatible = "brcm,bcm43438-bt";
shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>;
max-speed = <2000000>;
clocks = <&wifi32k>;
clock-names = "lpo";
};
};
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