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Apple brings TRIM support to all SSD-based Macs in Mac OS X 10.6.8

post #1 of 26
Thread Starter 
Apple has added TRIM support for all SSD-configurable Macs and fixes to improve graphics performance in the latest version of Mac OS X Snow Leopard.

Although Apple added TRIM in March to a custom build of Mac OS X 10.6.6 for Thunderbolt MacBook Pros, Mac OS X 10.6.8 marks the first time active SSD TRIM support is enabled across all SSD-capable Macs.

However, the new native TRIM support appears to be limited to stock Apple drives, as users with third-party SSDs installed have reported that the feature is not enabled by the update, according to a MacRumors report.

The TRIM command enables an operating system to optimize a solid state drive by cleaning up unused bits of deleted files. SSDs must be erased before being rewritten with new data, and also require housekeeping to avoid unnecessary erase/write cycles that would shorten the lives of the drives.

Apple had been preparing support for the feature in Mac OS X Lion for this summer, but apparently decided to bring the feature to Snow Leopard as well. Hints that Apple planned to include TRIM support for future Macs first emerged last year in SSD-equipped MacBook Pros.



Meanwhile, aset of benchmarks from MacsOnly shows the latest version of Snow Leopard to include graphics improvements that boost gaming performance. In particular, OpenGL received a substantial boost of as much as 48 percent, according to the graphics test.

Users have reported real-world improvements to the frame rates of various games after installing Mac OS X 10.6.8. The update appears to erase an intermittent issue with graphics performance that was affecting users of Mac OS X 10.6.7.



Mac OS X 10.6.8 arrived last week with enhancements to the Mac App Store in preparation for Mac OS X Lion. Other fixes in the update include: resolution of an issue with Preview, improved support for IPv6, improved VPN reliability, and the ability to identify and remove known variants of the Mac Defender malware.
post #2 of 26
Quote:
Originally Posted by AppleInsider View Post

The update appears to erase an intermittent issue with graphics performance that was affecting users of Mac OS X 10.6.7.

And it creates a new issue when initiating screen sharing to a dual monitor Mac Pro--only the bottom quarter-to-half of the two displays is displayed. Wunnerful.
post #3 of 26
Quote:
Originally Posted by AppleInsider View Post

However, the new native TRIM support appears to be limited to stock Apple drives, as users with third-party SSDs installed have reported that the feature is not enabled by the update, according to a MacRumors report.

Well, it's true. I have an OWC Mercury drive installed in a Mac Mini and I can't get the TRIM enabled on it. Supposedly the Mercury has its own "Sandforce" optimizer but I have no idea about its efficacy. No way to tell if it's working or not.
post #4 of 26
Confirmed on my 2010 MacBook Air.
post #5 of 26
Quote:
Originally Posted by groths.org

1. check if your SSD supports trim at all, by googling on the model, if yes, continue
2. check if ur ssd already uses internal garbage collection, if no, continue
3. try trim enabler

http://www.groths.org/?p=387

   Apple develops an improved programming language.  Google copied Java.  Everything you need to know, right there.

 

    AT&T believes their LTE coverage is adequate

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   Apple develops an improved programming language.  Google copied Java.  Everything you need to know, right there.

 

    AT&T believes their LTE coverage is adequate

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post #6 of 26
Haha, they added more graphic drivers
post #7 of 26
Quote:
Originally Posted by Pattinson View Post

Apple always stays ahead of the curve.

Except TRIM has been around for QUITE some time. You've done a poor job hiding your off-topic question within the context of the thread.

Quote:
And I still a question anyone recommned an easy-to-use iPad Video Converter?

HandBrake. Google works quite well for this sort of thing.

Originally Posted by Marvin

The only thing more insecure than Android’s OS is its userbase.
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Originally Posted by Marvin

The only thing more insecure than Android’s OS is its userbase.
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post #8 of 26
post #9 of 26
Since iPods and iPhones have SSDs is there any type of TRIM support for them? They need it more than computer hard drives because they are so small.

Who knows the answer to this one?
post #10 of 26
still going to sticks with this Snow Leopard ? Lion release is imminent.
post #11 of 26
Quote:
Originally Posted by nixbsd View Post

still going to sticks with this Snow Leopard ? Lion release is imminent.

If you could reword this to contain some coherency, that'd be great. Apple hardly needs to hold this back until Lion's release.

Originally Posted by Marvin

The only thing more insecure than Android’s OS is its userbase.
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Originally Posted by Marvin

The only thing more insecure than Android’s OS is its userbase.
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post #12 of 26
Quote:
Originally Posted by Cpsro View Post

And it creates a new issue when initiating screen sharing to a dual monitor Mac Pro--only the bottom quarter-to-half of the two displays is displayed. Wunnerful.

And I have two new problems with 10.6.8. myself. It messed up my sleep mode so that when I put my 2009 24" iMac to sleep it stays asleep and I have to shutdown. Secondly, Safari freezes quite often. I never had any problems with updates ever. Guess I've been lucky up till now. I didn't experience any problems with my 2009 13" Macbook Pro though with the update. Btw, I checked and did everything suggested online. I'm going back to 10.6.7. At least they each have an external HDD using Time Machine.
If you want to call me names, tell me to shut up and f off...you will be ignored. I WILL NOT BE BULLIED!!
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If you want to call me names, tell me to shut up and f off...you will be ignored. I WILL NOT BE BULLIED!!
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post #13 of 26
Quote:
Originally Posted by Cpsro View Post

And it creates a new issue when initiating screen sharing to a dual monitor Mac Pro--only the bottom quarter-to-half of the two displays is displayed. Wunnerful.

Using the built in display and an external 23" with my MacBook (first generation) over VNC from an iPad with no problems, so it's not a universal issue at least.
post #14 of 26
Quote:
Originally Posted by bedouin View Post

Using the built in display and an external 23" with my MacBook (first generation) over VNC from an iPad with no problems, so it's not a universal issue at least.

Since Lion is the Next Big Thing and the main purpose of 10.6.8 seems to be providing the path to Lion, it doesn't give me much confidence that 10.6.8 was thoroughly tested or that any bugs that still exist or are new will be fixed--unless they also exist in Lion.
post #15 of 26
Quote:
Originally Posted by Cpsro View Post

Since Lion is the Next Big Thing and the main purpose of 10.6.8 seems to be providing the path to Lion, it doesn't give me much confidence that 10.6.8 was thoroughly tested or that any bugs that still exist or are new will be fixed--unless they also exist in Lion.

10.6.8 is an upgrade to Snow Leopard. It isn't a path to Lion: it just ensures that those who want the stability of Snow Leopard over the bleeding edge of Lion will have the best experience.
AppleInsider = Apple-in-cider. It's a joke!

I've used macs since 1985 when I typed up my first research paper. Never used anything else never wanted to.
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AppleInsider = Apple-in-cider. It's a joke!

I've used macs since 1985 when I typed up my first research paper. Never used anything else never wanted to.
Reply
post #16 of 26
Quote:
Originally Posted by Ecphorizer View Post

Well, it's true. I have an OWC Mercury drive installed in a Mac Mini and I can't get the TRIM enabled on it. Supposedly the Mercury has its own "Sandforce" optimizer but I have no idea about its efficacy. No way to tell if it's working or not.

And probably by the time it matters, the whole thing will be out of date and anyways

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John C. Dvorak, 2007
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"Apple should pull the plug on the iPhone."

John C. Dvorak, 2007
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post #17 of 26
NO TRIM SUPPORT ON MY 2010 MacBook Air 128GB SSD.
APPLE SSD SM128
How come?

Quote:
Originally Posted by AppleInsider View Post

Apple has added TRIM support for all SSD-configurable Macs and fixes to improve graphics performance in the latest version of Mac OS X Snow Leopard.

Although Apple added TRIM in March to a custom build of Mac OS X 10.6.6 for Thunderbolt MacBook Pros, Mac OS X 10.6.8 marks the first time active SSD TRIM support is enabled across all SSD-capable Macs.

However, the new native TRIM support appears to be limited to stock Apple drives, as users with third-party SSDs installed have reported that the feature is not enabled by the update, according to a MacRumors report.

The TRIM command enables an operating system to optimize a solid state drive by cleaning up unused bits of deleted files. SSDs must be erased before being rewritten with new data, and also require housekeeping to avoid unnecessary erase/write cycles that would shorten the lives of the drives.

Apple had been preparing support for the feature in Mac OS X Lion for this summer, but apparently decided to bring the feature to Snow Leopard as well. Hints that Apple planned to include TRIM support for future Macs first emerged last year in SSD-equipped MacBook Pros.



Meanwhile, aset of benchmarks from MacsOnly shows the latest version of Snow Leopard to include graphics improvements that boost gaming performance. In particular, OpenGL received a substantial boost of as much as 48 percent, according to the graphics test.

Users have reported real-world improvements to the frame rates of various games after installing Mac OS X 10.6.8. The update appears to erase an intermittent issue with graphics performance that was affecting users of Mac OS X 10.6.7.



Mac OS X 10.6.8 arrived last week with enhancements to the Mac App Store in preparation for Mac OS X Lion. Other fixes in the update include: resolution of an issue with Preview, improved support for IPv6, improved VPN reliability, and the ability to identify and remove known variants of the Mac Defender malware.
post #18 of 26
Is TRIM support needed to help a hybrid drive work efficiently? Anyone had any experience with a hybrid drive? I'm looking for something bigger than 256GB, but faster than a typical hard drive. SSD is way too expensive at that size. A 500GB hybrid drive is about $100.
post #19 of 26
Quote:
Originally Posted by Ecphorizer View Post

Well, it's true. I have an OWC Mercury drive installed in a Mac Mini and I can't get the TRIM enabled on it. Supposedly the Mercury has its own "Sandforce" optimizer but I have no idea about its efficacy. No way to tell if it's working or not.

Do some research online (e.g. at Anandtech.com). The effectiveness of the Sandforce controller's internal garbage collection routine is quite well established. Right now a Sandforce-equipped SSD is the only good third party choice for a Mac in those cases when TRIM can't be enabled.

However see also the very interesting link elsewhere in this thread to TRIM Enabler (http://www.groths.org/?p=387). Assuming this worksand I haven't tried ita much wider choice of SSDs is opened up.
post #20 of 26
Quote:
Originally Posted by Quevar View Post

Is TRIM support needed to help a hybrid drive work efficiently? Anyone had any experience with a hybrid drive? I'm looking for something bigger than 256GB, but faster than a typical hard drive. SSD is way too expensive at that size. A 500GB hybrid drive is about $100.

If you're looking at the Seagate Momentus I suggest you read the customer reviews at Newegg.com first. Between the DOA units, the early life failures, the noise issues and the ineffective firmware fixes you'll soon lose interest. At least I did.

Too bad, since it's an interesting concept, but Seagate has failed miserably to execute.
post #21 of 26
Quote:
Originally Posted by NeilM View Post

Do some research online (e.g. at Anandtech.com). The effectiveness of the Sandforce controller's internal garbage collection routine is quite well established. Right now a Sandforce-equipped SSD is the only good third party choice for a Mac in those cases when TRIM can't be enabled.

However see also the very interesting link elsewhere in this thread to TRIM Enabler (http://www.groths.org/?p=387). Assuming this worksand I haven't tried ita much wider choice of SSDs is opened up.

I use trim enabler with my OWC drive with a Sandforce controller. Going on a few months now with 0 issues, very pleased with the drive and happy with what trim enabler provides. It may vary by drive and by system so I can only speak for my own experience. I re-patched for 10.6.8 so I'll see how that turns out.

15" MB Pro Early 2011 (2.0 i7 8GB RAM 240 SSD); ATV 3; iPad 3 (32GB, VZW Black); iPhone 4S (16GB AT&T Black); Airport Extreme (2011)

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15" MB Pro Early 2011 (2.0 i7 8GB RAM 240 SSD); ATV 3; iPad 3 (32GB, VZW Black); iPhone 4S (16GB AT&T Black); Airport Extreme (2011)

Reply
post #22 of 26
Quote:
Originally Posted by Ecphorizer View Post

Well, it's true. I have an OWC Mercury drive installed in a Mac Mini and I can't get the TRIM enabled on it. Supposedly the Mercury has its own "Sandforce" optimizer but I have no idea about its efficacy. No way to tell if it's working or not.

That drive does not support TRIM. It does implement its own garbage collection scheme though.

Mac Pro, 8 Core, 32 GB RAM, nVidia GTX 285 1 GB, 2 TB storage, 240 GB OWC Mercury Extreme SSD, 30'' Cinema Display, 27'' iMac, 24'' iMac, 17'' MBP, 13'' MBP, 32 GB iPhone 4, 64 GB iPad 3

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Mac Pro, 8 Core, 32 GB RAM, nVidia GTX 285 1 GB, 2 TB storage, 240 GB OWC Mercury Extreme SSD, 30'' Cinema Display, 27'' iMac, 24'' iMac, 17'' MBP, 13'' MBP, 32 GB iPhone 4, 64 GB iPad 3

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post #23 of 26
Quote:
Originally Posted by Smallwheels View Post

Since iPods and iPhones have SSDs is there any type of TRIM support for them? They need it more than computer hard drives because they are so small.

Who knows the answer to this one?

Who freakin' cares???

Seriously, what does it matter? Will your experience with your iDevice monumentally change because it has or doesn't have TRIM support?
post #24 of 26
Quote:
Originally Posted by NeilM View Post

If you're looking at the Seagate Momentus I suggest you read the customer reviews at Newegg.com first. Between the DOA units, the early life failures, the noise issues and the ineffective firmware fixes you'll soon lose interest. At least I did.

Too bad, since it's an interesting concept, but Seagate has failed miserably to execute.

I was looking at this one:
http://www.newegg.com/Product/Produc...-591-_-Product

It's got 4 stars and most of the comments speak very positively about it. It seems about as good as any of the other Seagate drives.
post #25 of 26
Quote:
Originally Posted by NeilM View Post

Do some research online (e.g. at Anandtech.com). The effectiveness of the Sandforce controller's internal garbage collection routine is quite well established. Right now a Sandforce-equipped SSD is the only good third party choice for a Mac in those cases when TRIM can't be enabled.

However see also the very interesting link elsewhere in this thread to TRIM Enabler (http://www.groths.org/?p=387). Assuming this worksand I haven't tried ita much wider choice of SSDs is opened up.

Thanks for the advice and info, Neil. I did google sandforce some time ago but unfortunately most of what was out there was technically beyond my comprehension while the rest provided nothing that was helpful. I did try the TRIM enabler based on the info posted earlier and after doing it, the system profiler showed that TRIM was indeed now enabled.

One question: Is there some means of seeing what either/both Sandforce and TRIM are doing? In other words, how does a non-technical person like me gain confidence that these are doing something, anything, to keep the SSD well-oiled yet not accelerating its decay? This was part of my earlier google search and turned up nothing.
post #26 of 26
Quote:
Originally Posted by ZachB10 View Post

I use trim enabler with my OWC drive with a Sandforce controller. Going on a few months now with 0 issues, very pleased with the drive and happy with what trim enabler provides. It may vary by drive and by system so I can only speak for my own experience. I re-patched for 10.6.8 so I'll see how that turns out.

So Zach, how exactly does a non-technical consumer like me see these advantages? How can the TRIM/Sandforce functions be measured? (Serious question.)

I just enabled TRIM on my SSD per the instructions posted earlier (using the patcher) and I have no idea if things are getting better or worse or what's going on behind the scenes. I did this just to be sure I don't run into slowdowns or a reduction in live cells (or whatever you call the SSD analog of HDD blocks).
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