My laptop has a much newer 8th generation i7 processor, with 32GB of RAM and a GeForce RTX 2070 graphics card…and supposedly a low-lag screen. My desktop PC has an older 2nd generation i7 processor with a GeFore GTX 1070 graphics card and 16GB of RAM. I think the issue is my PC just isn’t fast enough to process the runahead mode. This time we range between 57 and 116 milliseconds – no difference from when it was off. Now let’s check out my desktop PC with runahead mode set to one frame: That’s not bad at all, although the wider gap between the varying delay might be noticeable to some people. Here we’re showing latency between 66 and 113 milliseconds, or 3-7 frames of latency About two frames more than an original console. I’ll start with runahead turned off, to get a baseline reading there: So now let’s move on to measure bsnes on my desktop PC with a USB controller that also has an LED installed. That’s just about what I expected and a decent general number to start from. It looks like our baseline measurements above ranged between 57 and 83 milliseconds 3-5 frames. So, once again, not a perfect measurement, but a decent real-world test to see how things compare. There’s also the fact that Samus’ gun isn’t locked to always shoot exactly the same way and if you press the button rapidly, you can see it fire at a different pace. I’ll have a much more detailed post on lag soon, but in short, if the button command is read before the frame starts to be drawn, then you can see readings of around 16 milliseconds faster than if it was read after the frame has already started drawing. Now, please keep in mind that this isn’t a perfect way to measure, as it can always be off by about one frame. I then loaded Super Metroid and used my LED-modded controller to measure the average time it takes for Samus to shoot, after the button was pressed: To start out, I connected original SNES hardware through the OSSC, into my computer monitor which I’d previously measured with the Time Sleuth and found that it only had a few milliseconds lag. I just wanted to get a basic idea of how bsnes has been running these days, as I haven’t done any formal testing with it in a long time. Please keep in mind that this is just a quick test and not an in-depth overview. I realize it’s still an alpha build, but I really wanted to see what the performance was like, so I broke out the high-speed camera and ran some lag tests! Today, developer Byuu released an alpha build of my favorite SNES emulator bsnes, that includes a latency-reducing “ runahead mode“:
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |