From 5cc1d55d769e278f51eeb057b08d04afd6bb0c44 Mon Sep 17 00:00:00 2001
From: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
Date: Sun, 7 Mar 2021 00:22:40 +0100
Subject: Add a simple benchmark program for the xattr key/value recorder

Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
---
 .gitignore                      |   1 +
 tests/libsqfs/Makemodule.am     |   5 ++
 tests/libsqfs/xattr_benchmark.c | 124 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 tests/libsqfs/xattr_benchmark.c

diff --git a/.gitignore b/.gitignore
index 3501319..05afa84 100644
--- a/.gitignore
+++ b/.gitignore
@@ -46,3 +46,4 @@ tests/*.sh
 /mk42sqfs
 /list_files
 /sqfsbrowse
+/xattr_benchmark
diff --git a/tests/libsqfs/Makemodule.am b/tests/libsqfs/Makemodule.am
index 0ad19d9..5ebb94b 100644
--- a/tests/libsqfs/Makemodule.am
+++ b/tests/libsqfs/Makemodule.am
@@ -7,8 +7,13 @@ test_table_LDADD = libsquashfs.la
 test_xattr_writer_SOURCES = tests/libsqfs/xattr_writer.c tests/test.h
 test_xattr_writer_LDADD = libsquashfs.la
 
+xattr_benchmark_SOURCES = tests/libsqfs/xattr_benchmark.c
+xattr_benchmark_LDADD = libcommon.a libsquashfs.la libcompat.a
+
 LIBSQFS_TESTS = \
 	test_abi test_table test_xattr_writer
 
+noinst_PROGRAMS += xattr_benchmark
+
 check_PROGRAMS += $(LIBSQFS_TESTS)
 TESTS += $(LIBSQFS_TESTS)
diff --git a/tests/libsqfs/xattr_benchmark.c b/tests/libsqfs/xattr_benchmark.c
new file mode 100644
index 0000000..918a636
--- /dev/null
+++ b/tests/libsqfs/xattr_benchmark.c
@@ -0,0 +1,124 @@
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+/*
+ * xattr_benchmark.c
+ *
+ * Copyright (C) 2021 David Oberhollenzer <goliath@infraroot.at>
+ */
+#include "config.h"
+#include "compat.h"
+#include "common.h"
+
+#include "sqfs/xattr_writer.h"
+#include "sqfs/xattr.h"
+
+#include <stdlib.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdio.h>
+
+static struct option long_opts[] = {
+	{ "block-count", required_argument, NULL, 'b' },
+	{ "groups-size", required_argument, NULL, 'g' },
+	{ "version", no_argument, NULL, 'V' },
+	{ "help", no_argument, NULL, 'h' },
+	{ NULL, 0, NULL, 0 },
+};
+
+static const char *short_opts = "g:b:hV";
+
+static const char *help_string =
+"Usage: xattr_benchmark [OPTIONS...]\n"
+"\n"
+"Possible options:\n"
+"\n"
+"  --block-count, -b <count>  How many unique xattr blocks to generate.\n"
+"  --group-size, -g <count>   Number of key-value pairs to generate for each\n"
+"                             xattr block.\n"
+"\n";
+
+int main(int argc, char **argv)
+{
+	long blkidx, grpidx, block_count = 0, group_size = 0;
+	sqfs_xattr_writer_t *xwr;
+	sqfs_u32 id;
+	int ret;
+
+	for (;;) {
+		int i = getopt_long(argc, argv, short_opts, long_opts, NULL);
+		if (i == -1)
+			break;
+
+		switch (i) {
+		case 'b':
+			block_count = strtol(optarg, NULL, 0);
+			break;
+		case 'g':
+			group_size = strtol(optarg, NULL, 0);
+			break;
+		case 'h':
+			fputs(help_string, stdout);
+			return EXIT_SUCCESS;
+		case 'V':
+			print_version("xattr_benchmark");
+			return EXIT_SUCCESS;
+		default:
+			goto fail_arg;
+		}
+	}
+
+	if (block_count <= 0) {
+		fputs("A block count > 0 must be specified.\n", stderr);
+		goto fail_arg;
+	}
+
+	if (group_size <= 0) {
+		fputs("A group size > 0 must be specified.\n", stderr);
+		goto fail_arg;
+	}
+
+	/* setup writer */
+	xwr = sqfs_xattr_writer_create(0);
+
+	/* generate blocks */
+	for (blkidx = 0; blkidx < block_count; ++blkidx) {
+		ret = sqfs_xattr_writer_begin(xwr, 0);
+		if (ret < 0) {
+			sqfs_perror(NULL, "begin xattr block", ret);
+			goto fail;
+		}
+
+		for (grpidx = 0; grpidx < group_size; ++grpidx) {
+			char key[64], value[64];
+
+			snprintf(key, sizeof(key), "user.group%ld.key%ld",
+				 blkidx, grpidx);
+
+			snprintf(value, sizeof(value), "group%ld/value%ld",
+				 blkidx, grpidx);
+
+			ret = sqfs_xattr_writer_add(xwr, key, value,
+						    strlen(value));
+
+			if (ret < 0) {
+				sqfs_perror(NULL, "add to xattr block", ret);
+				goto fail;
+			}
+		}
+
+		ret = sqfs_xattr_writer_end(xwr, &id);
+		if (ret < 0) {
+			sqfs_perror(NULL, "end xattr block", ret);
+			goto fail;
+		}
+	}
+
+	/* cleanup */
+	sqfs_destroy(xwr);
+	return EXIT_SUCCESS;
+fail:
+	sqfs_destroy(xwr);
+	return EXIT_FAILURE;
+fail_arg:
+	fputs("Try `xattr_benchmark --help' for more information.\n", stderr);
+	return EXIT_FAILURE;
+}
-- 
cgit v1.2.3