Initial buffer sizes: read 1024K, overflow 832K, change 805K

   1692     ksdwrf("Initial buffer sizes: read %luK, overflow %luK, change %luK\n", 1693            (unsigned long)fx->krrxread_sz/1024, 1694            (unsigned long)fx->krrxovf_sz/1024, 1695            (unsigned long)kcocv_max_read_size/1024);                    /*NF*/     void kcrfrxini kcrfrxini: Initialize redo read context Allocate buffers for read, LWN/record overflow and change vector moves. kcrfrxini 初始化redo读时 分配buffer 使用ksdwrf 会打印Initial buffer sizes: read 1024K, overflow 832K, change 805K。