Minecraft client and server issues... plz send help

Admiral Naismith · February 13, 2016

System specs;

CPU - i7 4790k

RAM - 8gb @1600mhz (dual channel)

GPU - GTX970 (no OC)

OS on SSD, everything else on 1TB 7200rpm HDD.

Temps are all fine.

So this is an issue I've always had with Minecraft but I really haven't cared too much until now.

With the system I have, I *should* be getting a ridiculously high FPS. People with less powerful systems get well over 500 FPS with some basic shaders. I however get ~130FPS with mid settings and no mods/shaders. If I press F3 I can see my CPU and GPU listed. I noticed that my GPU isn't "boosting" to it's actual clock speed and sits at the low-usage/idle clock speed around 700mhz. Not really sure what to do about that if that's the problem.

For the server....

I'm just trying to set up a basic server for 5 people max on my system. It'll only run occasionally. It works, I and others can log in, but its performance is sh*t. The ticks with just me on is around ~5ms. Doing anything with anyone is at least 7ms with tons of spikes. I allocated more ram (3GB) and it's not hitting the limit, so I don't have any reason to think that's the issue. My CPU usage hits up to 50% with both my client and server running. What can I do so the server, you know, is actually playable for more than one person?

I mean people run minecraft servers off of RasberryPis...

I am using 64bit Java... Absolutely any help is appreciated. I can't figure out what the hell is the problem.

★ Coups ★ · February 13, 2016

I dont know much about servers but I have the same GPU and CPU. I get around the same FPS you do, if not a little higher. but I may have a solution.

Anyway, Minecraft is mostly a CPU heavy game, so its unlikely that it will use much GPU.

I'd recommend that you give Minecraft more access to your RAM. Doing this increases performance by an absolute HUGE amount. Dont add all your RAM though.

there are plenty of YouTube videos on this.

Enderman · February 13, 2016

the server should not lag at all unless the tick is above 50ms

try running it with a batch file

"C:\Program Files\Java\jre1.8.0_73\bin\java" -server -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSIncrementalPacing -XX:ParallelGCThreads=4 -XX:+AggressiveOpts -Xmx8G -Xms2G -jar "C:\serverlocationgoeshere\minecraft_server.1.8.9.jar" nogui

make sure the name of the java file and server file in the batch file match the actual file name and location

you can adjust the ram too if you dont have 8GB