9075beefb1
Introduce an IterativeConnectivityChecker which runs a connectivity check with a filtered set of references, and falls back to using the full set of advertised references. It uses references during first check attempt: - References that are ancestors of an incoming commits (e.g., pushing a commit onto an existing branch or pushing a new branch based on another branch) - Additional list of references we know client can be interested in (e.g. list of open changes for Gerrit) We tested it inside Google and it improves connectivity for certain topologies. For example connectivity counts for chromium.googlesource.com/chromium/src: percentile_50: 1923 (was: 22777) percentile_90: 23272 (was: 353003) percentile_99: 345522 (was: 353435) This saved ~2 seconds on every push to this repository. Signed-off-by: Demetr Starshov <dstarshov@google.com> Change-Id: I6543c2e10ed04622ca795b195665133e690d3b10 |
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