Memory cleanup hints
In-RAM caches
Based on kernel.org doc on sysctl/vm:
# free pagecache:
echo 1 > /proc/sys/vm/drop_caches
# free reclaimable slab objects (includes dentries and inodes):
echo 2 > /proc/sys/vm/drop_caches
# free slab objects and pagecache:
echo 3 > /proc/sys/vm/drop_cachesSwap
ATTENTION: Only if "real" RAM is free, and NOT under load or during high-traffic times.
swapoff -a
swapon -a
Complete cleanup (Desktop version)
To combine all of the above plus king-of-leaks glipper:
killall glipper
echo 3 |sudo tee /proc/sys/vm/drop_caches >/dev/null
sudo swapoff -a
sudo swapon -a
echo 3 |sudo tee /proc/sys/vm/drop_caches >/dev/null
glipper &
Complete cleanup (Server version)
echo 3 > /proc/sys/vm/drop_caches ; swapoff -a ; swapon -a ; echo 3 > /proc/sys/vm/drop_caches