Re: [PATCH 0/9] migration/mapped-ram: Add direct-io support

2024-05-02 Thread Fabiano Rosas
Peter Xu writes: > On Fri, Apr 26, 2024 at 11:20:33AM -0300, Fabiano Rosas wrote: >> If the user is not passing in a file name which QEMU can open at will, >> we must then require that the user pass the two file descriptors with >> the flags already properly set. We'll use the already existing

Re: [PATCH 0/9] migration/mapped-ram: Add direct-io support

2024-05-02 Thread Peter Xu
On Fri, Apr 26, 2024 at 11:20:33AM -0300, Fabiano Rosas wrote: > If the user is not passing in a file name which QEMU can open at will, > we must then require that the user pass the two file descriptors with > the flags already properly set. We'll use the already existing fdset + > QMP add-fd

[PATCH 0/9] migration/mapped-ram: Add direct-io support

2024-04-26 Thread Fabiano Rosas
Hi everyone, here's the rest of the migration "mapped-ram" feature that didn't get merged for 9.0. This series adds support for direct I/O, the missing piece to get the desired performance improvements. There's 3 parts to this: 1- The plumbing for the new "direct-io" migration parameter. With