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    • Eamon Walsh's avatar
      Modified performance patches from Arjan van de Ven <arjan@infradead.org> · d7c5e8bf
      Eamon Walsh authored
      Subject: [PATCH] fix some performance gaps in Xace
      
      The XaceHook function is used in several hotpaths.
      The problem with it (performance wise) is twofold:
       * The XaceHook function has a big switch() statement for the hook number in it
       * The XaceHook function uses varargs to reassemble the final dispatch arguments again
      
      Both are expensive operations... for something that is known at compile time
      
      This patch turns the hotpath XaceHook call into a direct call to avoid
      the switch and varargs; this gives me over 10% performance gain
      on the x11perf benchmark.
      d7c5e8bf