From 7a00638cea41ad939a59fc0e5996959435fbdb7f Mon Sep 17 00:00:00 2001 From: "D.d.P.F. Lombard" Date: Sun, 7 Feb 2021 16:40:05 +0100 Subject: [PATCH 3/6] Tweak cmos defaults for KCMA-D8 (for a little speed boost) 63xx CPUs have the option to use a reduced latency value inside the crossbar. Setting "experimental_memory_speed_boost=Enable" aparently only has an effect on 63xx CPUs and may, in certain cases, yield a slight memory bandwidth increase (according to Timothy Pearson), but maybe it also works for 43xx CPUs. Setting "l3_cache_partitioning=Enable" will increase performance in certain situations. See: https://developer.arm.com/documentation/100453/0401/functional-description/l3-cache/l3-cache-partitioning?lang=en --- src/mainboard/asus/kcma-d8/cmos.default | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/mainboard/asus/kcma-d8/cmos.default b/src/mainboard/asus/kcma-d8/cmos.default index 306687157f..4e033d756f 100644 --- a/src/mainboard/asus/kcma-d8/cmos.default +++ b/src/mainboard/asus/kcma-d8/cmos.default @@ -21,9 +21,9 @@ sata_ahci_mode=Enable sata_alpm=Disable maximum_p_state_limit=0xf probe_filter=Auto -l3_cache_partitioning=Disable +l3_cache_partitioning=Enable gart=Enable ehci_async_data_cache=Enable -experimental_memory_speed_boost=Disable +experimental_memory_speed_boost=Enable power_on_after_fail=On boot_option=Fallback -- 2.25.1