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Demetr Starshov 9075beefb1 ReceivePack: adding IterativeConnectivityChecker 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	il y a 4 ans
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FullConnectivityChecker.java	Moving transport/internal -> internal/transport	il y a 4 ans
IterativeConnectivityChecker.java	ReceivePack: adding IterativeConnectivityChecker	il y a 4 ans

Demetr Starshov 9075beefb1 ReceivePack: adding IterativeConnectivityChecker

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

il y a 4 ans

FullConnectivityChecker.java

Moving transport/internal -> internal/transport

il y a 4 ans

IterativeConnectivityChecker.java

ReceivePack: adding IterativeConnectivityChecker

il y a 4 ans