From: Jonathan Tan <jonathantanmy@google.com>
Date: Thu, 26 Sep 2019 00:33:00 GMT
Subject: Common thread pool API in Git?
Message-ID: <20190926003300.195781-1-jonathantanmy@google.com>

Does anyone have ideas or plans for this? I know that (at least) "grep"
and "index-pack" have their own implementations, and it would be great
to just have one that all code can use.

For those who want to know, this question was motivated by a big delta
tree occurring in [1]. index-pack does parallelize delta resolution, but
it cannot split up trees into threads: each delta base root can go into
its own thread, but when a delta base root is processed, all deltas on
that root (direct or indirect) is processed in the same thread. I took a
look to see if this could be parallelized, but thought that it might be
better to standardize on a thread pool implementation first.

Searching reveals [2], but I don't think it ever made it into Git.

[1] git -c core.deltabasecachelimit=2g clone https://fuchsia.googlesource.com/third_party/vulkan-cts
[2] https://public-inbox.org/git/1440121237-24576-2-git-send-email-sbeller@google.com/