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fetch: default to protocol version 2 

The Git users at $DAYJOB have been using protocol v2 as a default for
~1.5 years now and others have been also reporting good experiences
with it, so it seems like a good time to bump the default version.  It
produces a significant performance improvement when fetching from
repositories with many refs, such as
https://chromium.googlesource.com/chromium/src.

This only affects the client, not the server.  (The server already
defaults to supporting protocol v2.)  The protocol change is backward
compatible, so this should produce no significant effect when
contacting servers that only speak protocol v0.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jonathan Nieder 2019-12-23 17:04:15 -08:00 committed by Junio C Hamano
parent 33166f3a1f
commit 684ceae32d
2 changed files with 2 additions and 2 deletions
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2
Documentation/config/protocol.txt
View File

@ -48,7 +48,7 @@ protocol.version::
If set, clients will attempt to communicate with a server
using the specified protocol version. If the server does
not support it, communication falls back to version 0.
If unset, the default is `0`.
If unset, the default is `2`.
Supported versions:
+
--

2
protocol.c
View File

@ -39,7 +39,7 @@ enum protocol_version get_protocol_version_config(void)
return env;
}
return protocol_v0;
return protocol_v2;
}
enum protocol_version determine_protocol_version_server(void)