MBP 2010 with SL through thick and thin
I have a mid-2010 15" MBP. And my colleagues who've just got themselves newer models that comes pre-installed with Lion, they've been showing off on how good Lion is. So I took the liberty to test-drive Lion on an external drive for 2 hours, despite having reading online all the horror stories about Lion. Installed Lion, and performed a Migration Assistant off my primary drive without erasing SL off. This would enable a direct comparison of my applications running.
Unfortunately Lion is far from satisfactory. In the end, I rebooted back to my primary drive running SL, and planned to keep it as long as the MBP and SL is running. I don't plan to upgrade to Lion, nor would I buy any Macs for the time being as long as Lion is the de facto OS. I'll see what Mountain Lion has to offer, but from the looks of their DP, so far nothing's promising.
What I have found so far about problems in Lion:
1. Lion does not allow internal display off in clamshell mode with lid open. SL does. I need this so that I would not have my MBP trapping heat with the lid close when I BOINC or running resource-intensive apps.
2. Spaces no longer works, so I cannot assign my apps to certain desktop spaces. Mission control sucks.
3. Lion is a RAM hog. Launch the same number of apps on both Lion and SL, the former takes up half the memory (I have 8GB), whereas the latter takes up only 1/3 the RAM. I'm not running intensive apps. Just a few minor apps and 2 Safari windows with 10 tabs each.
4. Temperature rises to around 80ºC with fan speed on 3300 - 3600 rpm with the same amount of applications running. The fact that the open lid resulted in the dual screen takes up my resources on the graphics, hence pushing the temperature up. SL registered only between 65 - 70ºC with fans around 2000 - 2200 rpm with the lid open and internal display off.
5. Text Edit hanged while saving versions.
6. No Save-as function for Apple apps.
7. Auto-save and Versions have no OFF toggle. Since I rely heavily on large documents on Preview and Pages, I wouldn't want them to inundate my space-constrained SSD with redundant data.
While I have not experienced any Black Screen of Death issue on the graphics with Lion, the few problems listed above is already enough to push me away from Lion back to SL.
But I'm curious though... How would anyone play intensive games on an MBP with Lion on an external display, since Lion automatically set to extended display when the lid is opened....? If it's closed, the heat from the CPU and GPU will be trapped with maddening fan speed...
Regarding memory on the 2010 MBP with Lion, it can only support up to 8GB, and my not-so-intensive apps already hogs up half the RAM. Can't imagine the page-outs to the drive if I run memory-hungry apps on it. 2011 MBPs however supports up to 16GB RAM, so it's still pretty comfortable on that range.
Anyhow, there is not much future-proofing for mid-2010 MBPs to talk about when it comes to Lion, but as long as SL is still alive and kicking, that would probably be my last stable OS X.
PS: BOINC cannot take advantage of CUDA since they're running off AMD graphics on the 2011 15/17" MBPs...
