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Printing: improve performace of ffPrintCharTimes

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李通洲
2022-10-23 10:44:42 +08:00
parent 1588f58726
commit 62ab091350
1 changed files with 7 additions and 2 deletions
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src/common/printing.c
+7 -2
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@@ -129,8 +129,13 @@ void ffPrintColor(const FFstrbuf* colorValue)
void ffPrintCharTimes(char c, uint32_t times)
{
for(uint32_t i = 0; i < times; i++)
putchar(c);
char str[32];
memset(str, c, sizeof(str)); //2 instructions when compiling with AVX2 enabled
for(uint32_t i = sizeof(str); i <= times; i += sizeof(str))
fwrite(str, 1, sizeof(str), stdout);
uint32_t remaining = times % sizeof(str);
if(remaining > 0)
fwrite(str, 1, remaining, stdout);
}
void ffPrintUserString(const char* value)