[LITMUS^RT] litmus-dev Digest, Vol 81, Issue 11

[Björn Brandenburg]

> On 19. May 2019, at 22:52, Ricardo Teixeira <ricardo.btxr at gmail.com> wrote:
> Does anyone know if the difference between these parameters can influence the overhead times? 
> […]
> > # CONFIG_DEBUG_RT_MUTEXES is not set
> > # CONFIG_DEBUG_SPINLOCK is not set
> > # CONFIG_DEBUG_MUTEXES is not set
> 8235c8236
> < CONFIG_DEBUG_LOCK_ALLOC=y
> ---
> > # CONFIG_DEBUG_LOCK_ALLOC is not set
> 8237d8237
> < CONFIG_LOCKDEP=y
> 8239,8240c8239
> < # CONFIG_DEBUG_LOCKDEP is not set
> < CONFIG_DEBUG_ATOMIC_SLEEP=y
> ---
> > # CONFIG_DEBUG_ATOMIC_SLEEP is not set

Hi Ricardo,

lockdep and related lock-debugging options can be very expensive in terms of overheads. 

- Björn


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