rawmassen Posted December 3, 2007 Share Posted December 3, 2007 I ran three tests, twice. First set before 'upgrade', second set straight after (and a reboot of course).The graphical results (which I was testing) were pretty much identical, then I noticed a huge difference in the thread computations... EFI v5.2: boot_v5 with mac.nubs NVinject installed Thread Test 298.43 Computation 361.88 7.33 Mops/sec, 4 threads EFI v6: boot_gf8800GTS640 without additional kexts Thread Test 235.22 Computation 218.20 4.42 Mops/sec, 4 threads Can't say I expected that - a significant computational drop (a massive 60%!). Is it possible that the combination of NVinject.kext, natit.kext and EFI v5.2 can effect processor performance? I know very little about OS X's underpinnings but my guess would be that it wouldn't. Can't argue with the results though. It's worth mentioning in both sets of tests no other apps were running, and no other drivers were changed.Will revert back to the previous setup tomorrow and re-run the tests. I'll be rather bemused if the figures don't pop back up again. Update: Random, back on 5.2 with NVinject: Thread Test 288.33 Computation 379.67 7.69 Mops/sec, 4 threads Although I must mention, the very first run yielded similar results to the EFI v6. Could this be just randomness from OSX86 and xbench? Update 2: Back on native EFI v6 and ran many different thread tests. Managed to get this: Thread Test 328.85 Computation 412.64 8.36 Mops/sec, 4 threads So it appears it's rather random! One thing I have noticed, in my System Profiler under Graphics, I no longer have the 'Rotation' attribute listed under Quartz Extreme. Any ideas what that is? Was definately present with 5.2 and NVinject. Link to comment Share on other sites More sharing options...
Sabr Posted December 3, 2007 Share Posted December 3, 2007 Why don't you try boot_v8? Link to comment Share on other sites More sharing options...
rawmassen Posted December 3, 2007 Author Share Posted December 3, 2007 Why don't you try boot_v8? I'm tempted, although I was under the assumption that you needed to install from scratch with v7 onwards. Really not feeling that at the moment Link to comment Share on other sites More sharing options...
consolation Posted December 4, 2007 Share Posted December 4, 2007 Maybe you should ask if xbench can make a meaningful measurement in the first place? Try geekbench and then maybe there will be something worth noting; chicken entrails give more accurate results than xbench Link to comment Share on other sites More sharing options...
rawmassen Posted December 4, 2007 Author Share Posted December 4, 2007 Yes will stay away from it, getting such varied results on the same test is ridiculous for a benchmarking program. Link to comment Share on other sites More sharing options...
antic Posted December 4, 2007 Share Posted December 4, 2007 Average score under Tiger 10.4.10 = 151 Average score under Leopard 10.5.1 EFI V7.0 =153 Disk access being around the same for MBR and GUID partitions Link to comment Share on other sites More sharing options...
Sabr Posted December 4, 2007 Share Posted December 4, 2007 I'm tempted, although I was under the assumption that you needed to install from scratch with v7 onwards. Really not feeling that at the moment Who told you that? Link to comment Share on other sites More sharing options...
rawmassen Posted December 4, 2007 Author Share Posted December 4, 2007 Who told you that? Read it on Netkas's site - mentioned to get GUID you need to blat the drive. Are there really any benefits of v7/8 over 6 though? Noticeable benefits that is, being able to repartition on the fly is something I've not needed in 15 years of computing Link to comment Share on other sites More sharing options...
Sabr Posted December 6, 2007 Share Posted December 6, 2007 Read it on Netkas's site - mentioned to get GUID you need to blat the drive. Are there really any benefits of v7/8 over 6 though? Noticeable benefits that is, being able to repartition on the fly is something I've not needed in 15 years of computing You must have missed the part where it says boot_v8 is universal - meaning it works with MBR partition tables too... Changes since 7.4now it supports both mbr and gpt(guid) partition tables (also Apple Partition Map) Link to comment Share on other sites More sharing options...
rawmassen Posted December 6, 2007 Author Share Posted December 6, 2007 You must have missed the part where it says boot_v8 is universal - meaning it works with MBR partition tables too... Excellent - will try that, thanks. Link to comment Share on other sites More sharing options...
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