It was stupid when people first whined about iPods not having replaceable batteries over ten years ago, and the same crowd that were whining then have apparently learned NOTHING from the trajectory of either Apple as a company, or hardware in general, over the past ten years. But this obsession some people have with assuming the entire world wants to mix-and-match their hardware is just stupid beyond belief. Did you know that you can't rip out the CPUs on MBAs and replace them with an overclocked Intel CPU, let alone an AMD CPU? Did you know that the RAM on MBAs is soldered?Īnd you know what - ALL Ultrabooks are pretty much the same. Hell, why don't you really ramp up the crazy. I mean, last time I checked, there were at least NINE people in the world who were interested in cracking their MBAs open to dick around with the insides. name99 - Monday, Janulink Yes, Apple is intent on strangling the nascent MBA SSD replacement market in its cradle. Moreover, you can always enable TRIM later on if you experience poor performance, and even disable it right after it has TRIM’ed the empty blocks in case TRIM causes problems with your SSD. On the other hand, TRIM Enabler makes disabling TRIM as easy as enabling it, so giving TRIM a try shouldn't hurt anything. I would recommend force-enabling TRIM in OS X only if you do something disk intensive where performance matters, and only if you have an SSD where idle garbage collection is proving insufficient otherwise you most likely won’t notice the change in performance and you run the risk of unintended consequences. Especially SandForce based SSDs have had problems with TRIM in OS X and it’s generally not recommended to enable TRIM with them-plus the built-in garbage collection in SF SSDs is fairly effective. monitoring on some SSDs, allowing the user to see for example the lifetime reads and the amount of retired blocks.Īs always, use such utilities at your own risk. TRIM Enabler 2.0 patches the kext file for you and also repairs permissions, something you would have to do manually if using the Terminal method. The 1.x version worked in Lion but it included an old kext from Snow Leopard that caused worse performance for some users. The app has now reached version 2.0 and is finally fully compatible with OS X Lion. To make enabling TRIM more user friendly, Oskar Groth (also known as Cindori) developed an app called TRIM Enabler. Terminal is needed for this and although it’s simply a matter of copying and pasting the commands, not all users are comfortable with using Terminal at all. The actual TRIM command is supported by OS X, so with minor kext modifications, it’s possible to enable TRIM on non-Apple SSDs as well. However, for Mac users, TRIM is only available if you purchase an SSD straight from Apple when buying your Mac. TRIM is an essential part of keeping your SSD performance up (see this article for details) and it has been very beneficial for Windows 7 users. I can say new Apple computers that ship w/ SSD have TRIM enabled by default.Īpple just within the last couple OS X, supply the TRIM command in terminal for 3rd party SSD (eliminating the need for 3rd party methods to enable TRIM) this should tell you something about demand of this functionality.People are often concerned with the performance of their SSD is it running as fast as advertised. And you don’t need TRIM for garbage collection to work-but TRIM makes an SSD’s garbage collection more efficient." "TRIM doesn’t obviate the need for garbage collection-it works with garbage collection to more properly mark pages as stale. System_profiler SPSerialATADataType | grep 'TRIM'Īll new SSD will perform well, it is over time when allocated blocks and pages become used, you start to see a loss of performance. Trimforce status from terminal copy & paste: This helps ensure that all storage cells are aged uniformly and maximum lifetime achieved. The SSD doesn’t need to immediately delete or garbage collect these locations it just marks them as no longer valid. This results in a reduction of the number of erase cycles on the flash memory and enables higher performance during writes. The advantage of the TRIM command is that it enables the SSD’s GC (garbage collection) to skip the invalid data rather than moving it, thus saving time not rewriting the invalid data. Safe Mode does a Disk Repair and honors this trimforce command, effectively removing all the old deleted data. TRIM will release deleted blocks, It is recommended once enabled do a restart into SafeBoot Mode (hold the Shift key.) Once you make the choice stick with it ie you do not want to be flipping back and forth as this will lead to data corruption.Īlways advised to have a back up plan in place. Probaly less important on a brand new SSD, and one that has plenty of free space. You have to come to your own conclusions.
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