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Re: [PATCH 1/2] commit-graph write: add progress output

On Tue, Sep 04 2018, Ævar Arnfjörð Bjarmason wrote:

> Before this change the "commit-graph write" command didn't report any
> progress. On my machine this command takes more than 10 seconds to
> write the graph for linux.git, and around 1m30s on the
> 2015-04-03-1M-git.git[1] test repository, which is a test case for
> larger monorepos.

There's a fun issue with this code that I'll fix, but thought was
informative to send a mail about.

Because the graph verification happens in the main "git gc" process, as
opposed to everything else via external commands, so all this progress
output gets written to .git/gc.log.

Then next time we do a "gc --auto" we vomit out a couple of KB of
progress bar output at the user, since spot that the gc.log isn't empty.