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perf: Fix comparisons

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The sort order was unstable resulting in incorrect ordering dependent
upon libc version.
This commit is contained in:
Chris Wilson 2009-10-26 11:01:01 +00:00
parent f955a4cba7
commit 6911ba2f76
1 changed files with 15 additions and 7 deletions
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22
perf/cairo-perf-diff-files.c
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@ -55,21 +55,29 @@ test_diff_cmp_speedup_before_slowdown (const void *a, const void *b)
const test_diff_t *b_diff = b;
/* First make all speedups come before all slowdowns. */
if (a_diff->change > 1.0 && b_diff->change < 1.0)
if (a_diff->change > 0 && b_diff->change < 0)
return -1;
if (a_diff->change < 1.0 && b_diff->change > 1.0)
if (a_diff->change < 0 && b_diff->change > 0)
return 1;
if (a_diff->change == b_diff->change)
return 0;
/* Large speedups come first. */
if (a_diff->change > 1. && a_diff->change > b_diff->change)
return -1;
if (a_diff->change > 0) {
if (a_diff->change > b_diff->change)
return -1;
else
return 1;
}
/* Large slowdowns come last. */
if (a_diff->change < 1. && a_diff->change < b_diff->change)
return 1;
if (a_diff->change < 0) {
if (a_diff->change < b_diff->change)
return 1;
else
return -1;
}
return 0;
}
@ -95,7 +103,7 @@ test_diff_cmp (const void *a, const void *b)
static void
print_change_bar (double change, double max_change, int use_utf)
{
int units_per_cell = (int) ceil (max_change / CHANGE_BAR_WIDTH);
int units_per_cell = ceil (max_change / CHANGE_BAR_WIDTH);
static char const *ascii_boxes[8] = {
"****","***" ,"***", "**",
"**", "*", "*", ""