Comment #3 on issue 3740 by [email protected]: uploading a 6.8MB diff over
python API takes 30 seconds (220Kb/s). At least 100MB/s connection between
computers
https://code.google.com/p/reviewboard/issues/detail?id=3740
How are you generating the diff? It's probably diffing from
origin/master..HEAD, and not from your desired starting point.
The server, after getting the diff, will start asking the repository for
file existence on all the files in the diff, and validate them. That's
likely what's taking the time you're seeing. A 6MB diff likely contains
changes to quite a number of files, so this will take a while.
The validation is not parallelized. It needs to happen in one go, as there
are relationships between files in the diff and parent diff that need to be
checked, and we don't want to flood the repository with too many concurrent
checks (given that there many be other users also trying to post at the
same time), or the server can end up causing some timeouts or bad responses.
So as it is, it sounds like this isn't really a bug. The problem is more
that you're getting a 6MB diff, which we can help with once I know how it's
being generated.
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