This is the best summary I could come up with:

The Mesa Radeon Vulkan “RADV” driver ray-tracing support is about to become much faster with a pending improvement that is currently undergoing review.

Friedrich Vock has implemented support for batch acceleration structure builds within the Mesa RADV driver.

He explained in the pending merge request: "This converts radv_CmdBuildAccelerationStructuresKHR to a simple shim that pushes the actual build commands to a queue, where they are accumulated and dispatched as late as possible.

One of the comments in testing the MR goes on to note: "the perf uplift from this PR is huge in a few games, out of the ones I own lego builders journey gets a 2x improvement in performance.

When paired with the monolithic pipeline MR it completely blows amdvlk out of water.

This code will hopefully be merged in the coming days or weeks and this much faster RADV ray-tracing support can then be enjoyed in next quarter’s Mesa 23.3 release.

I’m a bot and I’m open source!

If this and monolithic pipeline get merged, 23.3 is going to be insanely impressive