Running multiple independent F-Stack applications

[RaduNichita]

On DPDK documentation it is mentioned that --file-prefix could be used to start processes that don't want to cooperate with same memory regions. The parsing of the flag was added in this commit to F-Stack.

Could you please provide an example about how this flag should be used to start two independent F-Stack applications and if something additional should be configured in order to make it work?

In my experiment, I tried starting two independent clients that use the F-Stack API to interact with a HTTP Server. When the second client starts, the first client hangs and the connection to the server is terminated. The configuration is the following:

This is the diff (from default config.ini) of configurations I used:

For client 1:

< lcore_mask=2
---
> lcore_mask=1
15,17d14
< file_prefix=app1
39c36
< pkt_tx_delay=0
---
> pkt_tx_delay=100
77c74
< log_level=5
---
> # log_level=0

For client 2:

< file_prefix=app2
38c36
< pkt_tx_delay=0
---
> pkt_tx_delay=100
76c74
< log_level=5
---
> # log_level=0

I started the clients with the following commands:

./client --conf ../config_app1.ini --proc-type=primary --proc-id=0
./client --conf ../config_app2.ini --proc-type=primary --proc-id=0

[hei1046035362]

you looks like new to dpdk, dpdk only allow one primary process on one pc, and proc-id means the program's index, you can take it as like dpdk process sequence num, one lcore is only allowed on one cpu core.
try the second process with --proc-type=secondary --proc-id=1
by the way, you should set the lcore_mask=0x3 in config file（0011 in binary，means the first and second cpu core will bind with dpdk lcore）