Johannes Schindelin c21f34ab35 add: enable FSCache around repo_read_index_preload() (#6216) ...

This is a companion of https://github.com/microsoft/git/pull/899.

Trace2 + GIT_TRACE_FSCACHE evidence on Windows ARM64 (Snapdragon X
Elite, ReFS Dev Drive) shows that the heaviest lstat-bound work in git
add happens inside repo_read_index_preload(), which currently runs
before enable_fscache() is called. Moving the enable up so the preload
phase is wrapped lets the existing batched NtQueryDirectoryFile cache
cover the bulk of the lstat traffic. This patch gave me a ~30%
performance improvement on a large git repo with a batched add.

Also at the end of cmd_add(): the cleanup site called enable_fscache(0)
again instead of disable_fscache(), leaking the refcount.

2026-06-05 13:42:58 +02:00

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add.c

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am.c

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annotate.c

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apply.c

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archive.c

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backfill.c

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bisect.c

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blame.c

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branch.c

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bugreport.c

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bundle.c

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cat-file.c

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check-attr.c

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check-ignore.c

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check-mailmap.c

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check-ref-format.c

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checkout--worker.c

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checkout-index.c

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checkout.c

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clean.c

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clone.c

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column.c

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commit-graph.c

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commit-tree.c

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commit.c

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config.c

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count-objects.c

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credential-cache--daemon.c

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credential-cache.c

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credential-store.c

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credential.c

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describe.c

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diagnose.c

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diff-files.c

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diff-index.c

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diff-pairs.c

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diff-tree.c

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diff.c

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difftool.c

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fast-export.c

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fast-import.c

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fetch-pack.c

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fetch.c

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fmt-merge-msg.c

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for-each-ref.c

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for-each-repo.c

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fsck.c

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fsmonitor--daemon.c

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gc.c

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get-tar-commit-id.c

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grep.c

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hash-object.c

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help.c

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history.c

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hook.c

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index-pack.c

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init-db.c

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interpret-trailers.c

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last-modified.c

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log.c

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ls-files.c

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ls-remote.c

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ls-tree.c

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mailinfo.c

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mailsplit.c

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merge-base.c

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merge-file.c

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merge-index.c

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merge-ours.c

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merge-recursive.c

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merge-tree.c

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merge.c

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mktag.c

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mktree.c

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multi-pack-index.c

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mv.c

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name-rev.c

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notes.c

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pack-objects.c

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pack-redundant.c

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pack-refs.c

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patch-id.c

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prune-packed.c

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prune.c

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pull.c

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push.c

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range-diff.c

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read-tree.c

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rebase.c

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receive-pack.c

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reflog.c

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refs.c

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remote-ext.c

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remote-fd.c

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remote.c

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repack.c

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replace.c

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replay.c

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repo.c

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rerere.c

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reset.c

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rev-list.c

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rev-parse.c

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revert.c

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rm.c

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send-pack.c

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shortlog.c

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show-branch.c

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show-index.c

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show-ref.c

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sparse-checkout.c

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stash.c

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stripspace.c

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submodule--helper.c

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symbolic-ref.c

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tag.c

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unpack-file.c

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unpack-objects.c

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update-index.c

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update-ref.c

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update-server-info.c

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upload-archive.c

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upload-pack.c

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var.c

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verify-commit.c

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verify-pack.c

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verify-tag.c

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worktree.c

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write-tree.c

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