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TRIM Support Enabler
- Thread starter Cindori
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ok...ive read through all 29 pages...and think I understand. But i would like some double confirmation if possible since im new to SSD...
I just bought a MacBook Pro 15" 2011 quad-i7 with a factory installed baseline 5400RPM drive.
I also bought an upgrade kit from OWC for 8GB RAM and best of all...an OWC Mercury Extreme Pro 6G 240GB drive.
I will be installing it this week once it all arrives in my grubby lil hands. BUT...according to the thread...am I to understand that:
OWC Mercury Pro 6G drives utilize their own custom garbage collection, and therefore I do NOT need to use this TRIM enabler? If I do not use the TRIM enabler patch for 10.6.7 (or eventually Lion), will my drive get worse over time? or what should i do to make this drive stay top-shape?
I just bought a MacBook Pro 15" 2011 quad-i7 with a factory installed baseline 5400RPM drive.
I also bought an upgrade kit from OWC for 8GB RAM and best of all...an OWC Mercury Extreme Pro 6G 240GB drive.
I will be installing it this week once it all arrives in my grubby lil hands. BUT...according to the thread...am I to understand that:
OWC Mercury Pro 6G drives utilize their own custom garbage collection, and therefore I do NOT need to use this TRIM enabler? If I do not use the TRIM enabler patch for 10.6.7 (or eventually Lion), will my drive get worse over time? or what should i do to make this drive stay top-shape?
After reading the thread I want to use this program to enable Trim support on a Crucial C300 SSD for my new imac, especially after reading AnandTechs Comment.
The C300 is clearly a drive made for Windows 7. With no TRIM utility, poor 512-byte aligned performance and clear degradation over time with heavy random writes, the C300 is best used with Windows 7 and its native TRIM support.
http://www.anandtech.com/show/3812/the-ssd-diaries-crucials-realssd-c300/9
However, after reading this article on Lifrhacker, I m not sure if using this program is a good idea.
TRIM Enabler won't work for all SSD users. You should not use TRIM Enabler if:
Your SSD already has built-in garbage collection. TRIM and garbage collection are similar, but they are not the same thing. Unfortunately, for some reason, the Apple driver for TRIM seems to conflict with drives that have garbage collection built-in to the controller, so you won't want to use it. It'll actually decrease your drive's performance.
http://lifehacker.com/5803331/how-to-enable-trim-on-your-macs-solid+state-drive
Can somebody please explain the contradiction between the two articles to me?
Should I use this program on a new Crucial C300 SSD or not?
Thanks
The C300 is clearly a drive made for Windows 7. With no TRIM utility, poor 512-byte aligned performance and clear degradation over time with heavy random writes, the C300 is best used with Windows 7 and its native TRIM support.
http://www.anandtech.com/show/3812/the-ssd-diaries-crucials-realssd-c300/9
However, after reading this article on Lifrhacker, I m not sure if using this program is a good idea.
TRIM Enabler won't work for all SSD users. You should not use TRIM Enabler if:
Your SSD already has built-in garbage collection. TRIM and garbage collection are similar, but they are not the same thing. Unfortunately, for some reason, the Apple driver for TRIM seems to conflict with drives that have garbage collection built-in to the controller, so you won't want to use it. It'll actually decrease your drive's performance.
http://lifehacker.com/5803331/how-to-enable-trim-on-your-macs-solid+state-drive
Can somebody please explain the contradiction between the two articles to me?
Should I use this program on a new Crucial C300 SSD or not?
Thanks
I have it on an MBP with trim enabled since 2 months, installed in the optibay, and I didn't had any problem, and is fast.
Same here (with the C300).
However, I've recently removed TRIM support as there were a definite performance hit with it enabled. Since removing, I've seen a visible performance increase.
Just for the sake of it, I've made some speed test with AJA using the Sweep Binary Frame Rate profile running two files, one for 128MB and one for 512MB, with and without Trim support.
I may run the test without Trim support later in the following weeks but, as today, the results are actually comparable for both read and write speeds.
The SSD is a Crucial C300 265MB (model C300-CTFDDAC256MAG with Firmware version 006) installed in the OWC DataDoubler on a 2010 MBP 15" i5 2,53Mhz with 8GB of Ram.
Detailed results in the PDF attached.
Let's see if in a couple of weeks the performances will change or if I will experience problems with sleep.
In any case, I haven't made any specific measurements, looks it boots from cold faster than before.
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Thanks. I did try running the app but it didn't show up, even after a reboot. However I downloaded it again and to my surprise it worked. So I am trying the system again without TRIM just to see how it performs.
Cheers,
I'm new to Macs and put my OCZ Vertex 2 drive in a 7,1 MacBook. It would startup in 15 seconds and shutdown in less than 2. After a week, thelaptpp now takes >30 seconds to boot and 15 seconds to shut down. I enabled Trim and load times seem better but websites seem to load choppier. I only have chrome, kindle, and vlc installed. Any idea why my computer is slowing down? Thank you.
Please trim your free bytes by following the steps in the first post "trim after enabling trim" or similar description. Enabling trim doesn't trim the already deleted files, the steps explained in the first post will.
10.6.8 will bring a trim enabled fsck for every Mac.
If you are referring to the commands to type in terminal, then I did those.
I am not sure if I taxed the SSD by partitioning with BootCamp and then trying to delete that partition in Disk Utility and then finally realizing you can delete the partition simply in BootCamp. I then found another XP disc but that failed too so I ended up deleting the partition again.
I plan on formatting later tonight. My question is if I leave my laptop alone after formatting, will I still need to enable TRIM to maintain its speed? I definitely don't want 30+ second boot up times.
No, this one:
To TRIM your disk after enabling TRIM:
1. Open Disk Utility
2. Select your SSD from the right-hand-side bar
3. Click "Erase" tab
4. Select "Erase Free Space..."
5. Select the fastest method (no need to add extra write cycles by doing it multiple times) and click "Erase Free Space"
Oh, I did this as well. I also did this without knowing what its purpose is after deleting the partition that I made from BootCamp.
ok...i got my:
15" MacBook Pro 2011 2Ghz Quad-i7
8GB RAM
240GB OWC Mercury Extreme Pro 6G
I used QuickBench to test speed, and it seems to be matching barefeats testing results pretty closely.
HOWEVER, I am still quite concerned about the long term survival of this drive. When i installed the OS 10.6.7 I formatted the drive then installed the OS. I didnt do any TRIM enabler or erasing free space or any terminal commands or anything.
Can someone advise if this should be OK as is?
Someone mentioned previously my garbage collection is OK, but does that mean I should not enable trim? should i not erase free space? or do anything else?
Also...on a side note: how do i check firmware of the SSD so i can determine if i need to update the drive at all? I am concerned as previously my 5400RPM factory drive was stating battery life of 10 hours, now with the SSD im only measuring 5 hours.
15" MacBook Pro 2011 2Ghz Quad-i7
8GB RAM
240GB OWC Mercury Extreme Pro 6G
I used QuickBench to test speed, and it seems to be matching barefeats testing results pretty closely.
HOWEVER, I am still quite concerned about the long term survival of this drive. When i installed the OS 10.6.7 I formatted the drive then installed the OS. I didnt do any TRIM enabler or erasing free space or any terminal commands or anything.
Can someone advise if this should be OK as is?
Someone mentioned previously my garbage collection is OK, but does that mean I should not enable trim? should i not erase free space? or do anything else?
Also...on a side note: how do i check firmware of the SSD so i can determine if i need to update the drive at all? I am concerned as previously my 5400RPM factory drive was stating battery life of 10 hours, now with the SSD im only measuring 5 hours.
You can check your SSD's firmware in System Profiler, under "Serial ATA". Just compare what it says there with the manufacturer's website.
TRIM Enabler updated for 10.6.8
not tested though, my time machine backup is not here atm and I don't have another disk to boot from.
Please try it only if you have backup or can boot from other drive to restore the kext again.
http://groths.org/enabler/enabler_2.zip
not tested though, my time machine backup is not here atm and I don't have another disk to boot from.
Please try it only if you have backup or can boot from other drive to restore the kext again.
http://groths.org/enabler/enabler_2.zip
Quickly tried it this morning - but the backup button doesn't seem to do anything? Before it let me choose where to save the current kext as a backup but hitting it in 1.2 doesn't prompt a finder box or anything?
TRIM enabler 1.1. works for me with 10.6.8.
I have intel x25 g2 120GB and I am using trim enabler from day one without any problems.
I have intel x25 g2 120GB and I am using trim enabler from day one without any problems.
oops the interface file was totally, broken, will fix
EDIT: fixed, try again
http://groths.org/enabler/enabler_2.zip
Yeah it works, but it uses a driver from 10.6.7, with a newer driver you can probably get more performance. (like 0.5%)
EDIT: fixed, try again
http://groths.org/enabler/enabler_2.zip
TRIM enabler 1.1. works for me with 10.6.8.
I have intel x25 g2 120GB and I am using trim enabler from day one without any problems.
Yeah it works, but it uses a driver from 10.6.7, with a newer driver you can probably get more performance. (like 0.5%
)
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oops the interface file was totally, broken, will fix
Yeah it works, but it uses a driver from 10.6.7, with a newer driver you can probably get more performance. (like 0.5%
Just to be sure; this trim enabler does patch the current driver right?
Or does it distribute the 10.6.7 driver before this new version?
Both versions distribute a pre patched driver.
I have been working on one version that was simply going to patch the current driver, just to avoid having to distribute Apple kexts (which they may not like).
But I still wanted to have the ability to "Restore from default kext" for those that forgot to backup, or lost the backup. So I would have to do that anyway.