可以使用 onstat -g rbm 命令显示共享内存常驻段中可用和已使用的 block 的十六进制位图。
图: onstat -g rbm 命令输出
Block bitmap for resident segment address 0x44000000: address = 0x440003bc, size(bits) = 3035 used = 3031, largest_free = 4 0:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 256:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 512:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 768:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 1024:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 1280:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 1536:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 1792:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 2048:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 2304:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 2560:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff 2816:ffffffff ffffffff ffffffff ffffffff ffffffff ffffffff fffffe00