pthread_mutex_unlock takes 15x longer than pthread_mutex_lock

Mon Oct 2 06:47:00 GMT 2017

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On Sun, Oct 01, 2017 at 04:20:37PM -0400, Akash Baid wrote:
> Hi,
> 
> I have a packet processing application which takes and releases a
> pthread_mutex_lock for every packet [...]

> The application is using libpthread dynamic shared library, glibc
> version 2.13 on a x86_64 GNU/Linux VM on an Intel Xeon E5 2.5Ghz processor
> machine.

I barely know what I'm talking about, but I guess the type of mutex (fast,
recursive, error check, etc.) does matter wrt. that behaviour. Whoever
might jump in to help you might wish to know that.

Cheers
- -- tomÃ¡s
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