[PATCH] kernel: Reduce memory usage by reducing squashfs fragment cache size

[mail at adrianschmutzler.de]

Was ist denn der Nachteil davon, also der Grund, warum das nicht by-default gemacht wird?

> -----Original Message-----
> From: franken-dev [mailto:franken-dev-bounces at freifunk.net] On Behalf
> Of Fabian Bläse
> Sent: Samstag, 28. März 2020 17:10
> To: franken-dev at freifunk.net
> Subject: [PATCH] kernel: Reduce memory usage by reducing squashfs
> fragment cache size
> 
> Reducing the amount of squashfs fragments cached in memory might reduce
> memory usage, especially for systems with very little memory and big
> squashfs blocksizes.
> 
> Because only ar71xx-tiny contains 32/4 (memory/flash) devices, the
> reduction of the fragment cache is only applied to th ar71xx bsp.
> 
> Signed-off-by: Fabian Bläse <fabian at blaese.de>
> ---
>  bsp/ar71xx/.config | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/bsp/ar71xx/.config b/bsp/ar71xx/.config index 6c2c730..0b9a367
> 100644
> --- a/bsp/ar71xx/.config
> +++ b/bsp/ar71xx/.config
> @@ -96,6 +96,7 @@ CONFIG_CLEAN_IPKG=y
>  # CONFIG_FASTD_ENABLE_METHOD_COMPOSED_UMAC is not set  #
> CONFIG_FASTD_ENABLE_METHOD_GENERIC_GMAC is not set  #
> CONFIG_FASTD_ENABLE_METHOD_GENERIC_UMAC is not set
> +CONFIG_KERNEL_SQUASHFS_FRAGMENT_CACHE_SIZE=1
>  # CONFIG_PACKAGE_ALFRED_VIS is not set
>  CONFIG_PACKAGE_hostapd-mini=y
>  CONFIG_PACKAGE_iwinfo=m
> --
> 2.26.0
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