Got a Crucial m4 256GB SSD in a 2011 Mac Mini.
It's been in there for years but for the past year or so I've had consistent shockingly bad speeds: max 50mb/s write, ~75mb/s read. I've had TRIM off since Yosemite or whichever OS it was that disabled third party TRIM support.
Upgraded to El Cap and used the "sudo trimforce enable" command in Terminal. Deleted a few unused apps totalling 5-6GB, waited a few mins, ran a blackmagic speed test again and bam! 265mb/s write, 498mb/s read.
Far cry from the newer Apple PCIe SSD speeds but much happier considering my older speeds. I read about degraded performance over time without TRIM but 75mb/s read to almost 500!? I honestly thought my machine was just getting old, didn't know a simple command could bring it back to life.
Hopefully this helps someone else with poor speeds on the fence about enabling TRIM.
It's been in there for years but for the past year or so I've had consistent shockingly bad speeds: max 50mb/s write, ~75mb/s read. I've had TRIM off since Yosemite or whichever OS it was that disabled third party TRIM support.
Upgraded to El Cap and used the "sudo trimforce enable" command in Terminal. Deleted a few unused apps totalling 5-6GB, waited a few mins, ran a blackmagic speed test again and bam! 265mb/s write, 498mb/s read.
Far cry from the newer Apple PCIe SSD speeds but much happier considering my older speeds. I read about degraded performance over time without TRIM but 75mb/s read to almost 500!? I honestly thought my machine was just getting old, didn't know a simple command could bring it back to life.
Hopefully this helps someone else with poor speeds on the fence about enabling TRIM.