如何快速的吃掉一段内存:通过tmpfs来划一片领地,再用dd去粗暴占用mount -t tmpfs -o size=512M tmpfs /mnt/demodd if=/dev/zero of=/mnt/demo/file bs=1M count=512
https://blog.csdn.net/qingzhuyuxian/article/details/79759682