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/* Copyright (C) 2007 Josh MacDonald */
#include "test.h"
usize_t bench_speed(const uint8_t *from_buf, const size_t from_len,
const uint8_t *to_buf, const size_t to_len,
uint8_t *delta_buf, const size_t delta_alloc,
int flags) {
usize_t delta_size;
int ret = xd3_encode_memory(to_buf, to_len, from_buf, from_len,
delta_buf, &delta_size, delta_alloc, flags);
if (ret != 0) {
fprintf(stderr, "encode failure: %d: %s\n", ret, xd3_strerror(ret));
abort();
}
return delta_size;
}
int main(int argc, char **argv) {
int repeat, level;
char *from, *to;
uint8_t *from_buf = NULL, *to_buf = NULL, *delta_buf = NULL;
size_t from_len = 0, to_len, delta_alloc, delta_size = 0;
long start, finish;
int i, ret;
int flags;
if (argc != 5) {
fprintf(stderr, "usage: speed_test LEVEL COUNT FROM TO\n");
return 1;
}
level = atoi(argv[1]);
repeat = atoi(argv[2]);
from = argv[3];
to = argv[4];
flags = (level << XD3_COMPLEVEL_SHIFT) & XD3_COMPLEVEL_MASK;
if ((strcmp(from, "null") != 0 &&
(ret = read_whole_file(from, &from_buf, &from_len))) ||
(ret = read_whole_file(to, &to_buf, &to_len))) {
fprintf(stderr, "read_whole_file error\n");
goto exit;
}
delta_alloc = to_len * 11 / 10;
delta_buf = main_malloc(delta_alloc);
start = get_millisecs_now();
for (i = 0; i < repeat; ++i) {
delta_size = bench_speed(from_buf, from_len,
to_buf, to_len, delta_buf, delta_alloc, flags);
}
finish = get_millisecs_now();
fprintf(stderr,
"STAT: encode %3.2f ms from %s to %s repeat %d %zdbit delta %zd\n",
(double)(finish - start) / repeat, from, to, repeat, sizeof (xoff_t) * 8, delta_size);
ret = 0;
if (0) {
exit:
ret = 1;
}
main_free(to_buf);
main_free(from_buf);
main_free(delta_buf);
return ret;
}
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