[LEDE-DEV] Build ar71xx / 4MB with IPv6, Luci, OpenVPN (PolarSSL), Command, Watchcat, relay and printk without debug ?

[Daniel Petre]

On 10/01/2016 02:06 AM, Lars Kruse wrote:
> Hello Daniel,
>
>
> Am Fri, 30 Sep 2016 18:39:39 +0300
> schrieb Daniel Petre <daniel.petre at posteo.net>:
>
>>> CONFIG_TARGET_ROOTFS_SQUASHFS=y
>>> CONFIG_TARGET_SQUASHFS_BLOCK_SIZE=256
>>>
>>> You could try setting the blocksize to 1024 - this should make a
>>> noticeable difference as squashfs can compress better.
>>
>> Awesome! I saved like 70K on a 4MB wr841n v8 by going from 256 to 1024 !
>
> please note, that better compression due to a greater blocksize comes at the
> cost of increased RAM consumption.

I have tested few routers and the results are:

router size diskfree memfree

tp-link wdr3600 256 1292k 88600k
tp-link wdr3600 512 1360k 82784k
tp-link wdr3600 1024 1492k 77656k

d-link dir615h2 256 96k 7420k
d-link dir615h2 512 328k 4500k
d-link dir615h2 1024 400k 3696k

nexx wt3020h 256 1168k 27416k
nexx wt3020h 512 1312k 21652k
nexx wt3020h 1024 1404k 16892k

for me personally 512 seems a reasonable choice.

>
> Lars
>
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