Re: [RFC/PATCH] ksm: add vma size threshold parameter

2014-05-27 Thread Hugh Dickins
On Tue, 27 May 2014, Vitaly Wool wrote: > Hi, > > I have recently been poking around saving memory on low-RAM Android devices, > basically > following the Google KSM+ZRAM guidelines for KitKat and measuring the > gain/performance. > While getting quite some RAM savings indeed (in the range of 10k

[RFC/PATCH] ksm: add vma size threshold parameter

2014-05-27 Thread Vitaly Wool
Hi, I have recently been poking around saving memory on low-RAM Android devices, basically following the Google KSM+ZRAM guidelines for KitKat and measuring the gain/performance. While getting quite some RAM savings indeed (in the range of 10k-20k pages) we noticed that kswapd used a lot of CP