Re: [riot-devel] Stacksize optimization
Thanks for your replies.
I leave this for the moment but stack optimisation will be a very nice
feature :-)
2017-01-09 14:39 GMT+01:00 Oleg Hahm :
> Hi!
>
> On Mon, Jan 09, 2017 at 02:01:04PM +0100, Baptiste Clenet wrote:
>> In order to optimize the statcksize of a thread, I would like to know
>> when the thread uses the maximum of its stack (maximum can be 3/4 of
>> the stack for instance)
>> How can I find this "time"?
>
> Sounds like a case for -finstrument-functions (man gcc).
>
> Cheers,
> Oleg
> --
> die_if_kernel("Kernel gets FloatingPenguinUnit disabled trap", regs);
> linux-2.2.16/arch/sparc/kernel/traps.c
>
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--
Baptiste
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Re: [riot-devel] Stacksize optimization
Hi!
On Mon, Jan 09, 2017 at 02:01:04PM +0100, Baptiste Clenet wrote:
> In order to optimize the statcksize of a thread, I would like to know
> when the thread uses the maximum of its stack (maximum can be 3/4 of
> the stack for instance)
> How can I find this "time"?
Sounds like a case for -finstrument-functions (man gcc).
Cheers,
Oleg
--
die_if_kernel("Kernel gets FloatingPenguinUnit disabled trap", regs);
linux-2.2.16/arch/sparc/kernel/traps.c
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Re: [riot-devel] Stacksize optimization
Hi, On 01/09/2017 02:01 PM, Baptiste Clenet wrote: > Hi, > > In order to optimize the statcksize of a thread, I would like to know > when the thread uses the maximum of its stack (maximum can be 3/4 of > the stack for instance) > How can I find this "time"? > In my opinion: Welcome to the embedded world problems... I thought about to have some coverage compiler and check always the maximum stacksize... That's my idea to get such value... but then you need to reach 100% coverage of the thread -> good luck with that. :-) It would maybe nice to have such feature in RIOT to coverage his "little tiny thread application" where you could reach your 100% coverage... Maybe also possible on other stacks for testing in native application... and also check ISR stack size. It think it's a good research topic for somebody who looking for academic work. :-) - Alex ___ devel mailing list devel@riot-os.org https://lists.riot-os.org/mailman/listinfo/devel
[riot-devel] Stacksize optimization
Hi, In order to optimize the statcksize of a thread, I would like to know when the thread uses the maximum of its stack (maximum can be 3/4 of the stack for instance) How can I find this "time"? Cheers, -- Baptiste ___ devel mailing list devel@riot-os.org https://lists.riot-os.org/mailman/listinfo/devel
