[add linux-mm mailing list + people] On 10/20/18 4:41 AM, Spock wrote: > Hello, > > I have a workload, which creates lots of cache pages. Before 4.18.15, > the behavior was very stable: pagecache is constantly growing until it > consumes all the free memory, and then kswapd is balancing it around > low watermark. After 4.18.15, once in a while khugepaged is waking up > and reclaims almost all the pages from pagecache, so there is always > around 2G of 8G unused. THP is enabled only for madvise case and are > not used. > > The exact change that leads to current behavior is > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-4.18.y&id=62aad93f09c1952ede86405894df1b22012fd5ab > -- ~Randy
