feat(tvix/store): use rayon to upload chunks concurrently r/5939

Look at the data that's written to us, and upload all chunks but the
rest in parallel, using rayon. This required moving `upload_chunk`
outside the struct, and accepting a ChunkService to use for upload
(which it was previously getting from `self.chunk_service`).

This doesn't speed up things too much for now, because things are still
mostly linear.

Change-Id: Id785b5705c3392214d2da1a5b6a182bcf5048c8d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8195
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>

1 files changed, 1 insertions, 0 deletions

diff --git a/tvix/Cargo.lock b/tvix/Cargo.lock
index cba7166ce878..de4d832b8954 100644
--- a/tvix/Cargo.lock
+++ b/tvix/Cargo.lock
@@ -2796,6 +2796,7 @@ dependencies = [
  "nix-compat",
  "prost",
  "prost-build",
+ "rayon",
  "sha2 0.10.6",
  "sled",
  "tempfile",