possible memory leak or memory waste

[Sebastian Gottschall]

Am 26.05.2015 um 00:39 schrieb Ben Greear:
> Default firmware has a hard-coded minimum number of tx buffers (somewhere
> more than 1k buffers I think).  Maybe driver is allocating all this
> memory somehow?
>
> If you do one-way traffic tests (udp), I wonder if you can tell if it 
> is tx
> or rx that consumes the memory?
its tx. i have a ethernet over ip tunnel running on that link and i 
broadcast iptv in that way. (its my way to convert multicast to unicast)
the  tunnel itself is rfc ethernet over ip, which is somewhat like udp. 
so connectionless protocol

Sebastian
>
> CT firmware can be configured to use any multiple-of-8 amount of tx
> buffers, though I have not tested below around 600.
>
> Thanks,
> Ben
>
> On 05/25/2015 02:26 PM, Sebastian Gottschall wrote:
>> today using the latest testing driver, i found out the memory 
>> consumption is unbelievable high.
>> my router here has 64 mb ram. this ram is fully taken after some 
>> minutes by ath10k. but only if data flow present.
>>
>> here the results of "free" after some minutes
>> root at DD-WRT:~# free
>> total         used         free       shared      buffers
>> Mem:         61636        58752         2884            0 2600
>> -/+ buffers:              56152         5484
>> Swap:            0            0            0
>>
>>
>> now i terminate hostapd which controls the ath10k chipset
>>
>>
>> root at DD-WRT:~# kill 902
>> root at DD-WRT:~# free
>> total         used         free       shared      buffers
>> Mem:         61636        23212        38424            0 2416
>> -/+ buffers:              20796        40840
>> Swap:            0            0            0
>>
>>
>> you see the difference?
>>
>>
>> regards,
>> Sebastian Gottschall
>>
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>