Hi Hui, On Mon, Aug 22, 2016 at 04:25:05PM +0800, Hui Zhu wrote: > Current ZRAM just can store all pages even if the compression rate > of a page is really low. So the compression rate of ZRAM is out of > control when it is running. > In my part, I did some test and record with ZRAM. The compression rate > is about 40%. > > This series of patches make ZRAM can just store the page that the > compressed size is smaller than a value. > With these patches, I set the value to 2048 and did the same test with > before. The compression rate is about 20%. The times of lowmemorykiller > also decreased.
I have an interest about the feature for a long time but didn't work on it because I didn't have a good idea to implment it with generic approach without layer violation. I will look into this after handling urgent works. Thanks.
