Revision a62f9d1ace8c6556cbc1bb7df69eff0a0bb9e774 authored by Garima Singh on 04 September 2019, 17:36:39 UTC, committed by Johannes Schindelin on 05 December 2019, 14:36:40 UTC
In preparation to flipping the default on `core.protectNTFS`, let's have
some way to measure the speed impact of this config setting reliably
(and for comparison, the `core.protectHFS` config setting).

For now, this is a manual performance benchmark:

	./t/helper/test-path-utils protect_ntfs_hfs [arguments...]

where the arguments are an optional number of file names to test with,
optionally followed by minimum and maximum length of the random file
names. The default values are one million, 3 and 20, respectively.

Just like `sqrti()` in `bisect.c`, we introduce a very simple function
to approximation the square root of a given value, in order to avoid
having to introduce the first user of `<math.h>` in Git's source code.

Note: this is _not_ implemented as a Unix shell script in t/perf/
because we really care about _very_ precise timings here, and Unix shell
scripts are simply unsuited for precise and consistent benchmarking.

Signed-off-by: Garima Singh <garima.singh@microsoft.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
1 parent 525e7fb
Raw File
blob.c
#include "cache.h"
#include "blob.h"

const char *blob_type = "blob";

struct blob *lookup_blob(const struct object_id *oid)
{
	struct object *obj = lookup_object(oid->hash);
	if (!obj)
		return create_object(oid->hash, alloc_blob_node());
	return object_as_type(obj, OBJ_BLOB, 0);
}

int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
{
	item->object.parsed = 1;
	return 0;
}
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