High-speed logging stutters
Hey guys,
I’m hoping to get some perspective from the hardware-savvy tuners in the group. I’ve been spending the last few weeks trying to dial in a heavy-duty logging setup for a project I'm working on, but I’ve hit a bit of a performance wall that has me scratching my head.
To give you some context, I’m not using a fancy new laptop. Instead, I’ve repurposed an old enterprise-grade workstation for the garage. My logic was that I’d rather have a rugged, "disposable" machine out where there’s grease, heat, and dust rather than ruining a $2,000 MacBook. This old beast is running a decent quad-core, but it’s currently maxed out with 16GB of PC3 8500 memory. I know DDR3-1066 is essentially ancient history in the tech world, but for basic data processing, I assumed it would be more than enough.
However, I’ve run into a specific point of frustration within the EFILive V8 Scan Tool. When I’m logging a high count of PIDs—say 40 or more—at the highest possible sample rate, the "Frames per Second" display in the software starts to get really erratic. The real-time graphing will stutter for a second, then catch up, which makes it incredibly difficult to spot transient lean spikes or timing pulled during a pull.
I’ve verified that my FlashScan firmware is up to date and I’ve even swapped out the USB cables to ruled out the easy stuff. My personal insight here is that I might have underestimated the "overhead" of modern tuning software. Back in the day, tuning was mostly about simple tables, but V8 feels a lot more visually intensive. I’m starting to wonder if the relatively slow bus speed of the PC3 8500 RAM is struggling to keep the buffer clear while the CPU is trying to render the high-res graphs and write the log file to the disk simultaneously.
It’s one of those things where you want to stick to the "if it ain't broke, don't fix it" mentality, but when the data starts lagging, the tuning becomes guesswork. I’ve always preferred these older server-grade components because they handle the heat of a summer garage way better than modern consumer gear, but maybe I’ve finally found the limit of what this old memory can handle.
Has anyone else noticed EFILive V8 becoming more sensitive to system memory bandwidth recently? I’m curious if I should just bit the bullet and find a machine with faster DDR4, or if there’s a specific buffer setting I’m overlooking that could help this old PC3 8500 keep its head above water.
Do you think we’ve reached a point where legacy hardware just can't keep up with the data throughput requirements of modern high-speed logging?
Reply With Quote