On 20-Sep-18 11:47 PM, Ananyev, Konstantin wrote:
Hi Anatoly
Introduce an example application demonstrating the use of
external memory support. This is a simple application based on
skeleton app, but instead of using internal DPDK memory, it is
using externally allocated memory.
The RX/TX and init path is a carbon-copy of skeleton app, with
no modifications whatseoever. The only difference is an additional
init stage to allocate memory and create a heap for it, and the
socket ID supplied to the mempool initialization function. The
memory used by this app is hugepage memory allocated anonymously.
Anonymous hugepage memory will not be allocated in a NUMA-aware
fashion, so there is a chance of performance degradation when
using this app, but given that kernel usually gives hugepages on
local socket first, this should not be a problem in most cases.
Do we need a new sample app just for that?
Couldn't it be added into testpmd, same, as we have now 'mp-anon'
to use mempool over anonymous memory?
Konstantin
Hi Konstantin,
The reason i made a new sample app and not put it in testpmd is that i
felt putting it in testpmd hurts discoverability of sample code.
However, i can do either, or both?
--
Thanks,
Anatoly
