psyke83/android_kernel_samsung_msm — comment on commit f8132ae6a1beb24f8a855a06b00805048aaa77d1
File:  line 0
By psyke83:

Sorry, I was quite busy these past days. The drop_caches.c code appears to periodically drop caches every 20 minutes (by echoing "1" to /proc/sys/vm/drop_caches).

I suspect that it can cause lag due to the unnecessary flushing of caches, but I'm not entirely sure. Only Samsung includes this hack in their kernels, I never saw it in my Huawei kernel, for example.