Has anybody else noticed a 10-25% openGL slow down with 10.7.5?
Hi, I was running x-plane 9.70 at certain settings on my 17" MBP (early 2011, 10.7.3) and noticed I was getting about 70 fps... nice. I do an update on firmware and OS (10.7.5) and I notice that the x-plane fps has dropped to about 55. The settings and environment the same as near as I can get. I thought this was bad but maybe just x-plane or something peculiar. I also couldn't tell if the performance drop was caused by the firmware update or the OS update.
I remembered I'd done an xbench benchmark with 10.7.3 so I did a new one with the updates... sure enough the openGL numbers had dropped by 20% or so. So, I hooked up my backup drive with 10.7.3 on it and ran x-plane and xbench again to try to isolate the firmware update from the OS update.... The results were x-plane still showed a drop of about 10% and xbench about 25%. Looks like there is something wrong in 10.7.5.
Has anybody else noticed a performance slow down in openGL functions with 10.7.5?
Khan
Thank you for this first reply! I'll have to give this a try later....the main laptop I experience this on crashed not more than an hour after I posted this issue. I'm on a tiny, slow netbook that hasn't had the same problem. Now I'm wondering if I picked up a Trojan on the main laptop and the "Not Responding" message is a side effect of a virus or Trojan.
One of the system .dll files has been corrupted and I'm not being allowed to use recovery discs, previous disc images, or any recovery options. That was an all day sucker yesterday and from what I've read on forums and have researched, it appears I'm going to need to reload the operating system. If it is indeed a Trojan/virus, I'm surprised it made it through my antivirus and firewall. Anything is possible, really.
Thanks again, I'll get back with results once I get the wounded laptop back up and running.
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