Re: possible memory leak or memory waste

[Ben Greear <greearb@candelatech.com>]

Can you test with ath9k to make sure it is actually ath10k related?

And/or try traffic in RX direction only to see if that still uses
lots of memory?

Does memory come back after you just stop traffic (w/out stopping
hostapd)?

Thanks,
Ben


On 05/25/2015 04:00 PM, Sebastian Gottschall wrote:
> 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@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@DD-WRT:~# kill 902
>>> root@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
>>>
>>> _______________________________________________
>>> ath10k mailing list
>>> ath10k@lists.infradead.org
>>> http://lists.infradead.org/mailman/listinfo/ath10k
>>>
>>
>

-- 
Ben Greear <greearb@candelatech.com>
Candela Technologies Inc  http://www.candelatech.com

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