public version of crazy benchmarking
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Lib/foo.c
43
Lib/foo.c
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@ -20,34 +20,53 @@
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\
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} while (0)
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#define SZPIC 7777
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#define SZPIC 5777
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double tthi_dtime(void);
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void essai_pixcopy(void)
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void essai_pixcopy(int usemacro)
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{
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Image_Desc *alice, *bob;
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int x, y;
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double T0, T1;
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int x, y, foo;
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double T0, T1, perpix;
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long count;
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alice = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
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bob = Image_alloc(SZPIC, SZPIC, IMAGE_RGB);
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Image_pattern_000(alice, rand());
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T0 = tthi_dtime();
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count = 0L;
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for (y=0; y<SZPIC; y++) {
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for (x=0; x<SZPIC; x++) {
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if (usemacro) {
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for (y=0; y<SZPIC; y++) {
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for (x=0; x<SZPIC; x++) {
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PIXEL_COPY(alice, x, y, bob, x, y);
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count++;
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}
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}
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}
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else {
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for (y=0; y<SZPIC; y++) {
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for (x=0; x<SZPIC; x++) {
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Image_pixel_copy(alice, x, y, bob, x, y);
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count++;
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}
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}
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}
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T1 = tthi_dtime();
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fprintf(stderr, "count %ld, elapsed %g\n", count, T1-T0);
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foo = Image_TGA_save("bob.tga", bob, 0);
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if (foo) {
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fprintf(stderr, "%s: save -> %d\n", __func__, foo);
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}
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perpix = (T1-T0) / (double)count;
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fprintf(stderr, "%s : %10ld pixels, elapsed %9.6f seconds ==> %5.3g µs/ppix\n",
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usemacro ? "macro" : "func ",
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count, T1-T0, perpix);
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/* end */
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}
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@ -56,8 +75,9 @@ fprintf(stderr, "count %ld, elapsed %g\n", count, T1-T0);
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int main(int argc, char *argv[])
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{
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int i;
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fprintf(stderr, "*** %s is running\n", argv[0]);
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fprintf(stderr, "******** %s is running *********\n", argv[0]);
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if (argc > 1) {
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fprintf(stderr, "argument: %s\n", argv[1]);
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@ -65,7 +85,10 @@ if (argc > 1) {
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Image_print_sizeof_structs("foo");
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}
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else {
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essai_pixcopy();
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for (i=0; i<5; i++) {
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essai_pixcopy(0);
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essai_pixcopy(1);
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}
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}
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/*
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