Re: git annotate runs out of memory

Junio C Hamano [off-list ref] writes:

While this should be safe (because the user of blob lazily re-fetches),
it feels a bit too aggressive, especially when -C or other "retry and
try harder to assign blame elsewhere" option is used.

Instead, how about discarding after we are done with each origin, like
this?

It's been a while for me to look at the blame engine, and it hit me that
it would be interesting to run assign_blame() loop on multi-core machine
in parallel threads.