We are looking to cut some of our server costs and the only place I think it might be possible is our db server.
We're currently running an 8GB rackspace cloud that houses a mysql instance and I believe is running a sphinx searchd instance as well.
Here are the stats from free -m:
total used free shared buffers cached Mem: 7971 4748 3223 0 773 2773 -/+ buffers/cache: 1201 6769 Swap: 16378 467 15911
Here are the stats from top:
top - 15:23:52 up 349 days, 19:28, 1 user, load average: 0.39, 0.72, 0.92 Tasks: 141 total, 1 running, 139 sleeping, 0 stopped, 1 zombie Cpu(s): 0.5%us, 0.1%sy, 0.0%ni, 98.1%id, 1.3%wa, 0.0%hi, 0.0%si, 0.0%st Mem: 8162332k total, 4861112k used, 3301220k free, 791832k buffers Swap: 16771852k total, 478512k used, 16293340k free, 2839936k cached
It looks like were using just about half of our available 8Gigs but it would save us almost $200/mo if we could downgrade to a 4GB instance.
Any advice on this situation is much appreciated.