Just wonder if anyone has any suggestion here. I've been running lfs for years, on-line and off, with no problems at all - frame rates perfectly acceptable, from 30 to 90 or so, depending on load..
But suddenly, just this last week or so, without any hardware changes, I find that just occasionally the frame rate will suddenly plummet down to just 1 or 2; this "logjam" will last for about 5 or 10 seconds before the system reverts fairly swiftly to normal. And then, perhaps half an hour later, it will happen again..
Obviously first thoughts are that some other process - say a virus scan - is taking over the CPU from time to time... but I really can't see evidence of that.. and even if it was so, to slash the frame rate to an absurd 1 or 2 per second would be remarkable..
I've read the threads which refer to Minimum Sleep and Dynamic LOD, which gives me a few things to try, but wonder whether anyone else has experienced anything like this or has any suggestions to make ..
Thanks..