优化读缓存,采用随机小块读文件的方式。提高diskmap整体性能一倍以上。 myMap.setDiskSign(g_sign++,1024*100,1024*1024*100); 读缓存=1024*100*8192=800M,8192是头文件设定的缓存小块 写缓存=100M pwwMap is update Optimize the read cache, read file using small random buffer. more than one times increase the performance of diskmap . http://sourceforge.net/