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它山之石,可以攻玉。
在 2021-11-04 17:41:02,"Burakov, Anatoly" <anatoly.burakov@intel.com> 写道: >> -----Original Message----- >> From: David Marchand <david.marchand@redhat.com> >> Sent: Thursday, November 4, 2021 8:30 AM >> To: 赖香武 <15310488637@163.com> >> Cc: users <users@dpdk.org>; Burakov, Anatoly >> <anatoly.burakov@intel.com>; Richardson, Bruce >> <bruce.richardson@intel.com> >> Subject: Re: Aboud DPDK Multi-Process >> >> On Thu, Nov 4, 2021 at 9:21 AM 赖香武 <15310488637@163.com> wrote: >> > >> > Hello, I have a question about dpdk multi-process. After starting the >> > primary process and the secondary process, when the current primary >> > process exits, how does the secondary process become a new primary >> > process to make the program continue? Hope to get your answer, thank >> > you! >> >> Not sure why you need this, but DPDK won't do for you. >> >> The process type is decided once at DPDK init, and that is something that >> affects how your program behaves after. >> Switching type while running would break assumptions in the DPDK drivers >> and libraries. >> >> One thing that comes to mind, is that you could try to call >> rte_eal_cleanup() and call rte_eal_init() again. >> This is probably something that is not tested (so I'd expect issues, maybe >> leaks etc..). >> >> But then, you probably want to restart your process entirely. > >[[AB]] >Calling rte_eal_init() twice would be a terrible idea, because not everything (not even remotely!) gets cleaned up with rte_eal_cleanup(), and a lot of stuff is allocated statically. > >So, as far as I'm concerned, this usage scenario is considered to be unsupported. > >> >> >> -- >> David Marchand >