On Fri, Feb 22, 2019 at 6:12 PM Anatoly Burakov <anatoly.bura...@intel.com> wrote:
> Due to internal glibc limitations [1], DPDK may exhaust internal > file descriptor limits when using smaller page sizes, which results > in inability to use system calls such as select() by user > applications. > > While the problem can be worked around using --single-file-segments > option, it does not work if --legacy-mem mode is also used. Add a > (yet another) EAL flag to disable storing fd's internally. This > will sacrifice compability with Virtio with vhost-backend, but > at least select() and friends will work. > > [1] https://mails.dpdk.org/archives/dev/2019-February/124386.html Sorry, I am a bit lost and I never took the time to look in the new memory allocation system. This gives the impression that we are accumulating workarounds, between legacy-mem, single-file-segments, now no-seg-fds. Iiuc, everything revolves around the need for per page locks. Can you summarize why we need them? Thanks. -- David Marchand
