Stuttering vs Performance- How Do you tell the Difference?

There is a lot of confusion regarding stuttering vs performance and the resulting information being provided to FD is often performance based and is muddying up the waters of the stutter pool so to speak. This post is an attempt to separate the two so players who aren't familiar, or maybe new to online, or don't have a tech background have a better understanding of what is going on and be able to provide FD with more targeted information.

Tweaking your graphics options may appear to lessen or mask the stuttering, this is not the case. It is just the illusion of a system performing smoother than it was before this is a performance boost.


There is an excellent tool here that can be used to demonstrate the different types of display issues: http://www.testufo.com/#test=stutter...max=12&pps=720 Thanks Main Sequence!


Stuttering:
Often viewed as a micro stutter or skipping of the entire skybox. The entire scene and or objects literally stop for a few milliseconds or more in severe situations. It is usually accompanied by a sharp sudden drop in frame rate ranging from 5-30 fps and then immediately returning to a stable fps.

Micro Stuttering:
Microstutter is the - much less publicized - light 'judder' felt by many players that feels just like a framerate drop (though the game reports no FPS drop). It crops up intermittently for no apparent reason, even when lazily rotating the ship far from any celestial bodies, and only seems to effect ship movement, never head look. A dedicated thread for this issue is found here- https://forums.frontier.co.uk/showthread.php?t=86133 Thanks, LOTGS.

Performance:
Is typically defined as the overall level your gaming system performs based of off fps (frames per second), quality of the graphics rendered, and sound clarity. Overall graphic settings have the most impact on your fps. With everything set to max or "Ultra" a fps of 60 or higher should be able to be maintained at all times on a high end PC.

Frame Rates:
FPS is the go to measure of how well your system is running the game based off of your in game graphic settings and can be fine tuned with graphic control panels A steady fps of 60 is the typical benchmark most players aim for. Anything higher than 60fps is basically overkill as your eyes are simply not fast enough to notice any difference in the clock cycles. In some cases not capping or setting a frame rate limit just makes your video card (GPU) run hotter, as it is cycling much faster to render anything higher than 60. Is it typically viewed as best practice to cap your fps at 60 for stable game play. (Yes this is subjective)


Hyperjump:
When you jump from one system to the next you will often see what looks like stuttering in the cool looking graphics. This is not micro stutter, it is simply your hard drive loading up the next system into memory, normally referred to as hard drive thrashing. This is the equivalent of a loading screen like in other popular games, Elites just looks better as it is animated and has great sound effects. You will see your fps fluctuate quite a bit while the next system is loading and it will stabilize once loaded.

Lag:
This is often confused for many things, but in general it is the is lack of response from the server to your actions in game, for example you press the boost button/key and then a few seconds later your ship boosts. Normally with good network connections and a good performing server along with a good PC setup it will be nearly instant. Lag is caused by many factors and can often be seen as stuttering, it is not the same thing even though they act similarly. I would recommend looking up lag on the wiki or google it's fairly extensive.

P2P (Peer 2 Peer) can cause a lot of lag as the network connections from individual players are not the same and it is usually relegated to the weakest ping. A good write up can be found here for more detalied info on P2P networking. https://en.wikipedia.org/wiki/Peer-to-peer


Stuttering vs Performance in a RES: When you encounter stuttering in a RES zone for example, the ships you are fighting will appear to skip along on their forward path, and then return to normal, your fps should mirror this activity, it is very quick in most cases but it can greatly affect your aiming and shots fired. This not to be confused with lag, or performance issues. You may also notice that the asteroids start/stop their rotations briefly, this is stuttering. Performance problems in a RES zone typically manifests in the form of reduced fps (constant), slow and or sluggish feel sometimes called chunky to the overall scene. If you are flying in a RES zone with an fps of 35 or lower you have performance issues. Lowering some of your graphic settings, especially shadows, texture, AA and model draw distance will help this.


Sometimes when you jump into a system the Sun doesn't smoothly come into view. This is mostly caused by a long load time during hyperjump it is still loading as you drop in. This can be caused by lag, a low performance PC, old n moldy HD. Stuttering can occur as you are leaving the sun, especially if ships are in the area, and or jumping into the system.

Approaching a planet with a station, outpost, RES zones, or rings. Stuttering happens on approach to these planets typically without fail (for those affected), you will see the system skip as you get closer and closer, sometimes it can get pretty bad here as it appears there is some hard drive thrash along with stuttering just before you drop out of supercruise.

You can easily monitor suttering just by watching something move, a ship, a station rotating it is very easy to identify. When you drop out of SC watch the station rotate.

Stuttering appears to be primarily limited to populated systems where ships, station models are being rendered. If you are out exploring beyond the inhabited bubble and get stuttering around planets, note if it is everytime or an occasional event, it may be lag, or a possible performance issue. I personally get zero stuttering out exploring, but horrendous stuttering inside the populated bubble.



I hope this helps clear some confusion up. No need to post your system specs, this affects Xbone users as well. FD is working on the issue, so when you are providing information to them when reporting a problem regarding stuttering please make sure you are accurate with your details.

And when reporting a possible fix for stuttering best be 100% sure it's resolved and not just an increase in your overall performance. Much Thanks!

Please feel free to add in anything I may have missed, and I will add it to the main post.

Aces High!
 
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Since patch the game has been a horrendous drain on graphic resources.
Future patch updates will improve this as they discover the code causing it.

before the patch my machine was a beast, highest settings, never an issue.
After patch, all sorts of typical graphics issues which I have come across in many games after patches.
Most of those games however are much faster to fix integrity issues, ED seems a slow in this regards.
Game is still very playable and doesn't effect my awesomeness at all, just annoying but expected after any major patch/update.
 
If people don't know the difference between performance low fps and stuttering then they probably shouldn't be playing on pc. Perhaps they should get a console instead
 
Good explanation, although another major confusion I see on these forums related to this issue is the difference between stutter and microstutter in Elite.

Standard stutter is what you describe here- graphical lock-ups of varying duration that can leave you disoriented as objects outside your ship change location while you're locked up. In Elite these are most frequently associated with flying around in asteroid fields, or when passing planets in SC.

Microstutter is the - much less publicised - light 'judder' felt by many players that feels just like a framerate drop (though the game reports no FPS drop). It crops up intermittently for no apparent reason, even when lazily rotating the ship far from any celestial bodies, and only seems to effect ship movement, never headlook. A dedicated thread for this issue is found here- https://forums.frontier.co.uk/showthread.php?t=86133
 
Excellent post OP.

Stuttering:
Often viewed as a micro stutter or skipping of the background graphics. The scene or objects literally pause for a few milliseconds or more in severe situations. It is usually accompanied by a sharp sudden drop in frame rate ranging from 5-30 fps and then immediately returning to a stable fps.

Further to what LOTGS posted, I would add a separate section on micro-stutter (as described by LOTGS) as it is a completely different animal and the two terms are often interchanged. Also, I would not describe regular stutter as a skipping of the background graphics - it's a stall of everything displayed in the skybox (actually, is it the whole display output? I've never paid attention to the HUD during a stutter but I think others may have analysed this - it needs video).

Lag:
This is often confused for many things, but in general it is the is lack of response from the server to your actions in game, for example you press the boost button/key and then a few seconds later your ship boosts. Normally with good network connections and a good performing server along with a good PC setup it will be nearly instant. Lag is caused by many factors and can often be seen as stuttering, it is not the same thing even though they act similarly. I would recommend looking up lag on the wiki or google it's fairly extensive.

This reads as if we are talking about a pure client/server setup but remember a major factor here will be the P2P connection between players when in Open/Group.

There is an excellent tool here that can be used to demonstrate the different types of display issues: http://www.testufo.com/#test=stutter&demo=smooth&foreground=FFFFFF&background=000000&max=12&pps=720
 
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Also this "non-performance related stutter" can be clearly identified by looking at GPU load graph. During this "pauses" GPU has nothing to do and load will spike sharply down almost to zero. In most extreme cases GPU may even start to reduce frequency to save power.
 
Yea, bought a new rig just so I could play with my OR and 0 lag, went from a Core i7 2.8Ghz Gen 2 16GB RAM Geforce 660 GTX to a Xeon E5-2670v3 (12 core hyperthreaded) 32GB RAM and AMD R9 390X, also when the extra mile and added a PCIe SSD. Everything was great until I entered SC, 75fps solid to 2fps in seconds... :(
 
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Yea, bought a new rig just so I could play with my OR and 0 lag, went from a Core i7 2.8Ghz Gen 2 16GB RAM Geforce 660 GTX to a Xeon E5-2670v3 (12 core hyperthreaded) 32GB RAM and AMD R9 390X, also when the extra mile and added a PCIe SSD. Everything was great until I entered SC, 75fps solid to 2fps in seconds... :(

for todays games the speed per core is more important than the number of cores, reason why i went with a 4790k (4.4GHz), instead of a 5930k, physx is done by my cpu and havent even seen one game utilize more than 50% of all my cores, ED is only using around 20% btw, with my 980 staying around 30-35% on highest settings (1080p) with Ultra SMAA done by sweetfx (60-70% vram usage max)

still get microstutter, game stays at 60fps all the time yet sometimes flying in a res the microstutter is really noticable, 5 mins later nothing, some time after again and son on, while staying at the same spot

the reason i didnt go for SLI was to get rid of microstutter, must say all the games i played were buttersmooth (even the really demanding games like dragon age inquisition, witcher 3, etc..) except for ED at times
 
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I can concur with everything Kryczex has said. I moved my system up to a crazy level of performance, GeForce 980, Hex i7 processor, 32gig memory, 2 SSD's, water-cooled system and the only motherboard that would take the cpu (Asus X99 deluxe). Absolutely no difference and yet the improvement with the other games I have is quite evident. To add one more thing to the list and that is interdictions, not only does this occasionally causes stuttering but also double imaging. I do hope that Frontier are aware of the problems of custom built machines and they read this thread and add my system to their list! I have in the past sent a video at their request so I hope that they are. Still love the game and I do understand that they must be as frustrated as we are. All I know is that this started from Beta 3.1, was reported then and has remained elusive to detection ever since. This last patch (7th July) has not resolved the problem for me
 
Good explanation, although another major confusion I see on these forums related to this issue is the difference between stutter and microstutter in Elite.

Standard stutter is what you describe here- graphical lock-ups of varying duration that can leave you disoriented as objects outside your ship change location while you're locked up. In Elite these are most frequently associated with flying around in asteroid fields, or when passing planets in SC.

Microstutter is the - much less publicised - light 'judder' felt by many players that feels just like a framerate drop (though the game reports no FPS drop). It crops up intermittently for no apparent reason, even when lazily rotating the ship far from any celestial bodies, and only seems to effect ship movement, never headlook. A dedicated thread for this issue is found here- https://forums.frontier.co.uk/showthread.php?t=86133

Thanks! added to OP,


Excellent post OP.




Further to what LOTGS posted, I would add a separate section on micro-stutter (as described by LOTGS) as it is a completely different animal and the two terms are often interchanged. Also, I would not describe regular stutter as a skipping of the background graphics - it's a stall of everything displayed in the skybox (actually, is it the whole display output? I've never paid attention to the HUD during a stutter but I think others may have analysed this - it needs video).



This reads as if we are talking about a pure client/server setup but remember a major factor here will be the P2P connection between players when in Open/Group.

There is an excellent tool here that can be used to demonstrate the different types of display issues: http://www.testufo.com/#test=stutter&demo=smooth&foreground=FFFFFF&background=000000&max=12&pps=720

Thanks, to the OP, I didn't want to add a bunch info info on P2P architecture as I thought it was well known how much lag can be introduced given that setup. Guess maybe I will edit that shortly.
 
https://forums.frontier.co.uk/showthread.php?t=164548

I've suffered quite a performance loss whenever I'm in Supercruise (Solo and nothing going on) - even when going Low Detail Presents and pointing my Ship at black space (???!)
If you're experiencing the same, would be nice if you could leave behind your own experiences in above linked bug report...

To me it seems SuperCruise is bogging down on the CPU for no visible reason.


This is a very interesting one, I am normally pegged at 60 while in SC, unless a stutter hits or a minor drop if close to a detailed planet. Definitely a performance issue, but why? I assume running a clean system, no background process running that would bog you down?
 
Also this "non-performance related stutter" can be clearly identified by looking at GPU load graph. During this "pauses" GPU has nothing to do and load will spike sharply down almost to zero. In most extreme cases GPU may even start to reduce frequency to save power.

Yea this is exactly what is happening when the GPU sends a call, there is no answer for a few milliseconds. Either that or upon every refresh there is gaps in the info.

Sometimes it is almost as if the client is re-loading the system resources that it already loaded while you were hyper jumping in or leftovers. But I do wonder if all the server swapping that is happening while your playing is the cause..
 
Some folks still aren't getting it.. It's as if they are trying to not understand...

Mmmhmmm. And the potential issues here are 1) erroneous reporting of issues to FD, so the devs are on a wild goose chase looking for mis-reported phenomena that actually don't exist; and 2) it reduces the credibility of stutter reports in the eyes of FD.

Thankfully I'm sure FD are professional enough to sort the wheat from the chaff here, but it still helps no one.
 
There is an excellent tool here that can be used to demonstrate the different types of display issues: http://www.testufo.com/#test=stutter&demo=smooth&foreground=FFFFFF&background=000000&max=12&pps=720

What an awesome tool demonstrating the various differences. I had a fairly good idea how to differenciate stutter (freezes in skybox), micro-stutter (tiny skipping but no fps drop, although as others have mentioned it never seems to effect head tracker, why is that?), lag (networking obviously), but the more players who understand what is happening perhaps will help them describe the problems better in a bug report (although I expect none are submitting bugs reports for this anymore and if they are Frontier's inbox will be overflowing), but none the less, that tool is superb. I've never seen that before, many could learn a lot from that, I have.
 
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What an awesome tool demonstrating the various differences. I had a fairly good idea how to differenciate stutter (freezes in skybox), micro-stutter (tiny skipping but no fps drop, although as others have mentioned it never seems to effect head tracker, why is that?), lag (networking obviously), but the more players who understand what is happening perhaps will help them describe the problems better in a bug report (although I expect none are submitting bugs reports for this anymore and if they are Frontier's inbox will be overflowing), but none the less, that tool is superb. I've never seen that before, many could learn a lot from that, I have.

Agreed I have edited the OP and moved that line up near the top so hopefully players will see it.
 
Agreed I have edited the OP and moved that line up near the top so hopefully players will see it.

For sure, any further help you can provide to the gamer experiencing these problems that just don't want to go away it seems will undoubtedly be beneficial, although I must say some patches have improved things and then other subsequent patches make it rear its ugly stuttering head again. Still, great post Arjin, yours is the most comprehensive thread concerning these issues I've seen, so respect for you taking the time to collate all the advise and info. Let's hope it leads to a solution. :)
 
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