Iv000 Posted December 22, 2011 Share Posted December 22, 2011 (edited) It does give me a FPS boost but it isn't really massive. I'd say it gives me a 5-10 boost, but it's still a bit laggy when I'm in a city. (Not really lag, but it's noticeable when your FPS falls from 60 to 35)Though kudos, it made Markarth smoother. I'll test a few drivers and see if I can improve the performance. Thank you OP for mentioning this! :thumbsup: Edited December 22, 2011 by Iv000 Link to comment Share on other sites More sharing options...
documn Posted December 22, 2011 Share Posted December 22, 2011 Kudos for linking this. Made a notable difference in my laggy areas. Link to comment Share on other sites More sharing options...
Chaosrex Posted December 22, 2011 Share Posted December 22, 2011 Can we please have a Link to this?, other then one that passes via Bethsoft forums, wich apparently European(or at least Belgian) residents can't acces. Link to comment Share on other sites More sharing options...
Alpr Posted December 22, 2011 Share Posted December 22, 2011 (edited) This helped me quite a bit :) Still not what I'd like, but every little bit helps, thanks! Can run around 20 fps now but it can dip to 13ish. Before I couldn't get more than 13 on lowest settings (and game auto-detects med settings ;/). When I look up at the sky, it jumps to 40 FPS. I just wish I could get that all-around :P Edited December 22, 2011 by Alpr Link to comment Share on other sites More sharing options...
rajendra82 Posted December 22, 2011 Author Share Posted December 22, 2011 Can we please have a Link to this?, other then one that passes via Bethsoft forums, wich apparently European(or at least Belgian) residents can't acces. Added to the OP. But it is as follows: http://skse.silverlock.org/beta/TESVAL-1.3.10.0-2011-12-22-skseplugin.7z Link to comment Share on other sites More sharing options...
d3vo Posted December 22, 2011 Share Posted December 22, 2011 Great stuff. I had 14 fps on the stairs overlooking Whiterun. After this mod, it increased to 20 fps. That's at 1600x900 ultra (no aa/af) with HD 4870. Everywhere else, I noticed a slight increase in fps too. Link to comment Share on other sites More sharing options...
jimhsu Posted December 22, 2011 Share Posted December 22, 2011 (edited) If anything, you should really REALLY hope BS listens up and actually gets this in the next patch: Arisu from the official forums: Things I'd like to note here: Only a fraction of the speedup comes from using SSE2 code. The original exe also uses SSE2 code, just not in the right places where it is truly needed. This could've been prevented by using automated SSE2 vectorization and/or another math library. Interestingly, in this case, it's the dot product function that has been rewritten, which is somewhat ironically the #1 textbook example for automated vectorization in compiler demos. Much of the speedup is gained by manually eliminating (only possible if the entire function can be reduced to 5 bytes or less), or at least simplifying calls along the critical code paths as far as possible. This doesn't even produce nearly as good results as an optimizing compiler could have because of many restrictions a compiler doesn't have to deal with in the first place, so every optimizing compiler can do and usually does an excellent job at this if told to do it. Skyrim would probably experience an execution speed gain of over 100% just by applying this single optimization, as it has drastic consequences to the amount of code that could be detected as being redundant and thus completely eliminated. I know that sounds exaggerated, and normally would be, but it isn't when you've read and profiled enough of the code to know just how bad the compiled code is. Just 3 functions have truly been rewritten, everything else is either a variant form or an instruction-level simplification of functions consisting of things like "return *this;" which are at the very top in the profiled list because the compiler was obviously told not to inline it. So, every time a certain kind of pointer needs to be dereferenced, the game will call a lengthy function to do what can be (and is) replaced by a single instruction. Fixing this manually isn't feasible after a certain point, but the compiler can do this for the whole binary at the cost of just a few seconds extra compiling time and much better than ever possible by a human (at least at these code dimensions). In general, the TESV code has pretty high register pressure. A huge part of this is simply due to the completely missing optimizations which would otherwise eliminate the unneeded allocations, but an x86_64 build would also definitely help improving this condition. Jump targets are completely unaligned, including the so-called hot targets which are hit millions of times in short periods, leading to cache stress due to multiple fetches being required to execute a jump, whether correctly predicted or not. Optimizing compilers can automatically align them properly. I guess I don't have to mention how bad the threading is; this isn't trivial to fix though. Just sad that it's almost 2012 and this thing can't even properly use two threads. Besides all the other obvious flaws, this is the main reason why the game is so strongly limited by the CPU. Single-core speed didn't grow nearly as much as the number of cores did. Everyone knew it 10 years ago, but back then they could still just wait for the hardware to provide the additional power needed to run the sloppy code - this trick doesn't work anymore. Yeah, Skyrim is a nice game, but many obstacles we've got here have trivial fixes compared to the size of their respective payoffs (little to none extra coding required). Especially with over 10 million copies already sold, I somewhat expect that it will at least run on recent hardware without sub-30 framerates. That and the fact that each time a new patch is released, this mod has to be redone. Thus, why it's absolutely imperative for BS to spend all of 5 seconds to enable the optimize flag in their compiler. Edited December 22, 2011 by jimhsu Link to comment Share on other sites More sharing options...
SickFak Posted December 22, 2011 Share Posted December 22, 2011 Gonna reinstall the game and try this on Christmas when I finally get a few days off. But wow... Beth should indeed hire some decent programmers. I have a lot of respect for Beth and usually am not very harsh on criticizing them, but everyone has a point when their patience and respect may deteriorate toward someone... Link to comment Share on other sites More sharing options...
MrMiggins Posted December 22, 2011 Share Posted December 22, 2011 Definitely works! You can use an older version of SKSE if you haven't patched Skyrim to the latest version yet. Big performance improvements here :thumbsup: Link to comment Share on other sites More sharing options...
d3vo Posted December 22, 2011 Share Posted December 22, 2011 Hmm...I've seemed to run into a problem. Whenever I load Skyrim via skse_loader.exe, I get a message that "A component of the Skyrim Script Extender has stopped working", and then whenever I quit the game, I get the message "Skyrim has stopped working". Anyone else getting these messages? Besides these, the game seems to run fine. Link to comment Share on other sites More sharing options...
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