On Tue, Aug 5, 2008 at 8:03 AM, xiaoming gu <[EMAIL PROTECTED]> wrote: > Hi, guys. The patch for harmony-5901 is ready. At last! Thanks, Xioaming!
> I compared the performance for all the 5 benchmarks in "Java vs. C > benchmark" by Stefan Krause on my desktop > workstation (Intel Core 2 Quad [EMAIL PROTECTED], 3.23G RAM, Windows XP SP2). > With MUL/DIV replaced by shift, > spectralnorm is improved more than 29% (from 450258 msec to 319578 msec) Can you spend some time and measure how much boost there is, in case your _manual_ change of MUL/DIV operations to shifts? I had measured +60% boost, so it would be great to conclude whether yours +30% is connected with patch overheads (handling negative operands, I guess) or your environment. Thanks, Aleksey.
