[dpdk-dev] [PATCH] eal: add function to check if primary proc alive
Van Haaren, Harry
harry.van.haaren at intel.com
Thu Jan 21 10:02:41 CET 2016
> From: Qiu, Michael
> Sent: Thursday, January 21, 2016 6:14 AM
> To: Van Haaren, Harry <harry.van.haaren at intel.com>; david.marchand at 6wind.com
> Cc: dev at dpdk.org
> Subject: Re: [dpdk-dev] [PATCH] eal: add function to check if primary proc alive
> As we could start up many primaries, how does your secondary process
> work with them?
When a primary process initializes, the location of the config file is important. The default is /var/run/.rte_config
To run multiple primary processes, the --file-prefix= option is used to specific a custom location for the config file. Eg: --file-prefix=testing /var/run/.testing_config
The rte_eal_check_primary_alive(const char*) function takes a char* parameter - this is the location of the config file that the secondary process will wait for. Setting it to the correct value will make this secondary process wait for the corresponding primary process.
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