Re: [PATCH] slab: deal with NULL pointers passed to kmem_cache_free

[Eric Dumazet]

Pekka J Enberg a écrit :
> Thanks for the profile. I still wonder where exactly thouse super-hot 
> call-sites are...

In this case, it's a typical network server

Each time a packet is sent to or received from network, network stack has to 
allocate/free a skb (kmem_cache_alloc()/kmem_cache_free() and its data 
(kmalloc/kfree)

Other paths are for example dentries allocations, file allocations, ... really 
 many spots for some workloads.

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