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2GB. Burstable =/= Swap.
Probably a lot less than 2GB even, don't always believe what you're told
What's the difference?
vswap is virtual swap, slowed down memory which is presented to the container as swap space.
Many applications run much better with it and some are crashing/misbehaving badly without it.
Burst ram is available in certain conditions.
Your guaranteed ram is what you are supposed to be able to use at any time. Depending on host and sometimes, node, it is not always available.
If it isnt, you should change host, because you are being defrauded.
"Oh look I'm getting 4GB for 2GB prices let me use 95% of it then complain why my VPS performance sucks!!!"
This VPS with 3.5 Gb used has excellent performance
I'm running Minecraft servers without problems, and minecraft is heavy
You'll be suspended soon
Why? Lol, 1 year running Minecraft servers and my host knows that
2GB Ram/2GB Burst
But the burst are suposed to be shared with other clients?
@WInternt Correct. That 2GB Burst ram is not guaranteed. If the node you are on has less than 2GB Ram idling, you will not get that burst ram.
The definition of "Burst" in IT means "discard eligible". In other words you can't really rely on burst RAM.
True. But it depends on host, not everyone oversells that much, some people know the limits they can push.
Here is top from one server (Dual E5, 24 threads, 64 gb ram):
This is a healthy node with plenty of spare resources for spikes when needed.
We can afford to sell cheap and not oversell, the only problem with our OVZ is the restarts that plague it, I hope that after the patch whoever was abusing them will get a break till another bug is found.
EDIT: For comparison, an OVerZold node (picked one exactly same make like the other, for easier comparison):
Load is double and free ram is no longer 50%, but about 30.
Still plenty of resources for peaks (that happens during evening mostly when kids start their minecrafting or other games). At times load goes as high as 20 for 24 threads and goes past 24 when there are abusers with loads 10 times over their plan limit (had ppl with 2 k load, but it only affects their cores, we had idle cpu percentage all the time).
vSwap is poor. Plus usually oversold. (Majority). Whereas with guaranteed you know what you're getting is 100% (Hopefully anyway!) haha.