Re: [Qemu-devel] [PATCH V5 6/6] coroutine: reduce stack size to 64kB

[Stefan Hajnoczi]

On Tue, Jul 12, 2016 at 06:23:06PM +0200, Peter Lieven wrote:
> evaluation with the recently introduced maximum stack usage monitoring 
> revealed
> that the actual used stack size was never above 4kB so allocating 1MB stack
> for each coroutine is a lot of wasted memory. So reduce the stack size to
> 64kB which should still give enough head room. The guard page added
> in qemu_alloc_stack will catch a potential stack overflow introduced
> by this commit.
> 
> Signed-off-by: Peter Lieven <address@hidden>
> ---
>  include/qemu/coroutine_int.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Reviewed-by: Stefan Hajnoczi <address@hidden>

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