diff mercurial/streamclone.py @ 51548:1b17eeba9deb

stream-clone: stop getting the file size of all file in v3

The point of v3 is to do less work in the locked section. It was currently not
the case.


This significantly boost performance. The following number comes from a large
private repository using perf::stream-locked-section:

base-line:   35.03 seconds
this-change: 24.50 seconds (-30%)

--- a/mercurial/streamclone.py	Tue Mar 26 18:55:40 2024 +0000
+++ b/mercurial/streamclone.py	Tue Mar 26 11:24:20 2024 +0000
@@ -723,8 +723,8 @@
         # create a copy of volatile files
         for k, vfs, e in entries:
             for f in e.files():
-                f.file_size(vfs)  # record the expected size under lock
                 if f.is_volatile:
+                    f.file_size(vfs)  # record the expected size under lock
                     copy(vfs.join(f.unencoded_path))
         # the first yield release the lock on the repository
         yield None