FlankerWang 发表于 2012-7-26 01:08
这个只是最坏情况下吧?不然Intel用SF的主控,520的放大还这么大
那个是510,不是520.
这张图里没有sandforce主控的SSD,另外这张图的数据水分很大,只能作为参考。
具体如何我这2天会专门开贴分析的。
Anandtech的回复:
The method we use was disclosed by a big SSD manufacturer a few years ago. It does not rely on SMART or power consumption, and it can be run on any drive.
If we revealed the method we use, we would basically be giving it out to every other site. Tech industry is quite insolent about "stealing" nowadays, getting content from other sites without giving credit seems to be fine by today's standards.
Also, our method is just one way of estimating worst case write amplification.
我初步设想他们只是这么测的:
empty drive write speed / worst case drive write speed = WA |