Merge branch 'ns/batch-fsync'

Introduce a filesystem-dependent mechanism to optimize the way the
bits for many loose object files are ensured to hit the disk
platter.

* ns/batch-fsync:
  core.fsyncmethod: performance tests for batch mode
  t/perf: add iteration setup mechanism to perf-lib
  core.fsyncmethod: tests for batch mode
  test-lib-functions: add parsing helpers for ls-files and ls-tree
  core.fsync: use batch mode and sync loose objects by default on Windows
  unpack-objects: use the bulk-checkin infrastructure
  update-index: use the bulk-checkin infrastructure
  builtin/add: add ODB transaction around add_files_to_cache
  cache-tree: use ODB transaction around writing a tree
  core.fsyncmethod: batched disk flushes for loose-objects
  bulk-checkin: rebrand plug/unplug APIs as 'odb transactions'
  bulk-checkin: rename 'state' variable and separate 'plugged' boolean

1 files changed, 6 insertions, 1 deletions

diff --git a/object-file.c b/object-file.c
index d35c1820e7..2a1f3386f6 100644
--- a/object-file.c
+++ b/object-file.c
@@ -1893,7 +1893,9 @@ static void close_loose_object(int fd, const char *filename)
 	if (the_repository->objects->odb->will_destroy)
 		goto out;
 
-	if (fsync_object_files > 0)
+	if (batch_fsync_enabled(FSYNC_COMPONENT_LOOSE_OBJECT))
+		fsync_loose_object_bulk_checkin(fd, filename);
+	else if (fsync_object_files > 0)
 		fsync_or_die(fd, filename);
 	else
 		fsync_component_or_die(FSYNC_COMPONENT_LOOSE_OBJECT, fd,
@@ -1961,6 +1963,9 @@ static int write_loose_object(const struct object_id *oid, char *hdr,
 	static struct strbuf tmp_file = STRBUF_INIT;
 	static struct strbuf filename = STRBUF_INIT;
 
+	if (batch_fsync_enabled(FSYNC_COMPONENT_LOOSE_OBJECT))
+		prepare_loose_object_bulk_checkin();
+
 	loose_object_path(the_repository, &filename, oid);
 
 	fd = create_tmpfile(&tmp_file, filename.buf);