Hello again. I did some investigation on the code. I learned that RTE Ring creation function uses functions related to RTE Memzone to reserve memory (rte_memzone_reserve). Documentation states that once reserved memzone can not be unreserved. I decided to find out why it is so.
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? Best regards, Igor Ryzhov 06.05.2014 13:05, Igor Ryzhov ?????: > Hello. > > For what reason RTE Rings can not be removed once created? > In my application I want to use many rings with different names so I > think there may be a problem with memory because of many ring that > already not in use, but allocated. > Or DPDK has a mechanism of reusing memory if rings are not in use? > > Best regards, > Igor Ryzhov
