Issues with SSDs, Virtual Memory and Hibernation on Mac OS X?

solipsism · 07-28-2010, 11:46 PM

Since Mac OS X Snow Leopard doesn’t yet have TRIM and most SSDs doesn’t seem to do garbage collection and the effects of excessive writes can slow down a drive, is there a potential issue with Mac OS X using the SSD drive for VM and Hibernation?

I believe they don’t use VM on any iOS devices. Is that because of the long term performance effects of using NAND for VM?

fracai · 07-29-2010, 07:28 AM

You might be interested in reading this article.

Skip to the end if you're just interested in their findings. Basically, OS X doesn't currently run TRIM and doesn't seem to need it.

solipsism · 07-29-2010, 11:07 AM

Thanks for the link, fracai.

07-28-2010, 11:46 PM	#1
solipsism MVP Join Date: Nov 2005 Posts: 1,949	Issues with SSDs, Virtual Memory and Hibernation on Mac OS X? Since Mac OS X Snow Leopard doesn’t yet have TRIM and most SSDs doesn’t seem to do garbage collection and the effects of excessive writes can slow down a drive, is there a potential issue with Mac OS X using the SSD drive for VM and Hibernation? I believe they don’t use VM on any iOS devices. Is that because of the long term performance effects of using NAND for VM?

07-29-2010, 07:28 AM	#2
fracai MVP Join Date: May 2004 Posts: 2,012	You might be interested in reading this article. Skip to the end if you're just interested in their findings. Basically, OS X doesn't currently run TRIM and doesn't seem to need it.
$fracai is offline$

Thread Tools
Show Printable Version Email this Page
Display Modes	Rate This Thread
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode	Rate This Thread:

07-29-2010, 11:07 AM	#3
solipsism MVP Join Date: Nov 2005 Posts: 1,949	Thanks for the link, fracai.