Hi Igor, On 05/07/2014 09:54 AM, Igor Ryzhov wrote: > I noticed that in Memzone realization there is a special global variable > "free_memseg" containing pointers on free memory segments. > An memzone reserve function just finst the best segment for allocation > from this "free_memseg" variable. > > So I think there is a possibility to unreserve already reserved memory > back to "free_memseg", and impossibility of unreserving memory is just > because there is no function for that, not because it is impossible in > principle. > Am I right? Or there are any restrictions?
I think that implementing a freeing of memory segment is feasible, but it would require some work to properly merge freed zones to avoid memory fragmentation. Another solution is to allocate/free rings in standard memory (malloc for instance) instead of rte_memzones. Let me know if the patches I've just sent on the mailing list solves your issue. By the way, I plan to do the same thing for mempools in the coming weeks but there is much more work. Regards, Olivier
