| /* 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; |
| } |