Hi,
I wrote a test application using MEMNIC interfaces for inter
VM switching .[VM1 --> host --- >VM2 ]
I send uni-directional traffic from traffic generator at vm1
to the host .
And in the host my application switches traffic coming from
vm1 to vm2.
I have used dpdk-1.7 and memnic -1.2 . and
librte_pmd_memnic_copy.so to bind memnic interfaces to dpdk application [my
traffic generator app].
I observed a maximum throughput of around 470Mbps only [with
packet size 1400 Bytes,21,000 packets per second ] ..
Is there any best method to improve throughput using MEMNIC
interfaces ..
If I increase shared memory area shown below .. does it
servers my need .
If I want around 4 to 5 Gbps through put with unidirectional
flow from VM1 to VM2 through the host ..
How much shared memory area shall I take per port ..
What might be the memory alignment ..
/*
* Shared memory area mapping
* +------------------+
* | Header Area 1MB |
* +------------------+
* | Up to VM 7MB |
* +------------------+
* | Padding 1MB |
* +------------------+
* | Down to host 7MB |
* +------------------+
*/
struct memnic_area {
union {
struct memnic_header hdr;
char hdr_pad[1024 * 1024];
};
union {
struct memnic_data up;
char up_pad[7 * 1024 * 1024];
};
char blank[1024 * 1024];
union {
struct memnic_data down;
char down_pad[7 * 1024 * 1024];
};
};
Thanks & Regards,
Srinivas.
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