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ath79: add low_mem to tiny image

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Devices with SMALL_FLASH enabled have "SQUASHFS_BLOCK_SIZE=1024" in
their config. This significantly increases the cache memory required by
squashfs [0]. This commit enables low_mem leading to a much better
performance because the SQUASHFS_BLOCK_SIZE is reduced to 256.

Example Nanostation M5 (XM):
The image size increases by 128 KiB. However, the memory statisitcs look
much better:

Default tiny build:
------
MemTotal:          26020 kB
MemFree:            5648 kB
MemAvailable:       6112 kB
Buffers:               0 kB
Cached:             3044 kB

low_mem enabled:
-----
MemTotal:          26976 kB
MemFree:            6748 kB
MemAvailable:      11504 kB
Buffers:               0 kB
Cached:             7204 kB

[0] - 7e8af99cf5

Signed-off-by: Nick Hainke <vincent@systemli.org>
(cherry picked from commit f54ac98f8c)
This commit is contained in:
Nick Hainke 2022-08-19 18:59:36 +02:00 committed by Hauke Mehrtens
parent 4b5bd15091
commit f579b8538b
1 changed files with 1 additions and 1 deletions
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2
target/linux/ath79/tiny/target.mk
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@ -1,5 +1,5 @@
BOARDNAME:=Devices with small flash
FEATURES += small_flash
FEATURES += low_mem small_flash
DEFAULT_PACKAGES += wpad-basic-wolfssl