From caba47a66b9d433b4f8aa653f4b4a05f7f18dc6e Mon Sep 17 00:00:00 2001
From: Bartosz Taudul <wolf@nereid.pl>
Date: Sun, 11 Jan 2026 16:52:35 +0100
Subject: [PATCH] Don't copy the string to print if no replacements are needed.

---
 profiler/src/profiler/TracyMarkdown.cpp | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/profiler/src/profiler/TracyMarkdown.cpp b/profiler/src/profiler/TracyMarkdown.cpp
index a85f4c97..383adc27 100644
--- a/profiler/src/profiler/TracyMarkdown.cpp
+++ b/profiler/src/profiler/TracyMarkdown.cpp
@@ -11,6 +11,22 @@
 #include "TracyWeb.hpp"
 #include "../Fonts.hpp"
 
+
+#ifdef _MSC_VER
+void* memmem( const void* haystack, size_t hsize, const char* needle, size_t nsize )
+{
+    auto left = ptrdiff_t( hsize ) - ptrdiff_t( nsize );
+    while( left >= 0 )
+    {
+        if( memcmp( haystack, needle, nsize ) == 0 ) return (char*)haystack;
+        haystack = (char*)haystack + 1;
+        left--;
+    }
+    return nullptr;
+}
+#endif
+
+
 namespace tracy
 {
 
@@ -310,9 +326,12 @@ private:
     {
         if( !end ) end = text + strlen( text );
 
+        auto pos = (const char*)memmem( text, end - text, "\xe2\x80\xaf", 3 );
+        if( !pos ) return PrintTextWrapped( text, end );
+
         // Replace narrow no-break space with no-break space
         std::string buf( text, end );
-        auto found = buf.find( "\xe2\x80\xaf" );
+        auto found = std::string::size_type( pos - text );
         while( found != std::string::npos )
         {
             buf.replace( found, 3, "\xc2\xa0" );