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Therefore, it's not enough to flip the switch on TRIM and assume it's to your benefit. Other manufacturers, like Kingston, are also following suit by adding native garbage collection right on the controller (though this is nothing new).
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Therefore, adding TRIM only serves to add overhead and decrease performance, albeit only slightly (based on my own testing using XBench and HD Speed Test). All SandForce chipsets come with something dubbed recycler, "which intelligently performs garbage collection with the least impact on flash endurance" (and it is now the consensus that TRIM shouldn't actually be used for any SSD with these controllers). It is now the case that many SSD manufacturers are putting their own garbage collection routines right on the drive. But one question still remains: Does OS X need TRIM? And if that's a resounding "yes," under what circumstances? Grant Pannell took it upon himself to fix it. Secondly, TRIM enabler (developed by Oskar Groth) has been a point of contention lately, with some claiming the installer is inherently flawed. Firstly, the only genuine article on the subject (which has been criticized to some extent, though no one has debunked it outright) shows that OS X benefits very little from TRIM. It's a placebo affect and it is quite strong. My car drives way better after it's had a good wash and detailing, but clearly, soap and water don't tune engines. None of them ever present real, hard data on their performance increases.
How to optimize mac performance free#
It will drive you towards insanity if you constantly worry about read/write cycles and all those that suggest the disabling of swap, running without atime, or even creating a RAM disk, are just peddling snake oil (however, there are some optimizations you can perform to free up space or reduce SSD wear, but the do often involve disabling services, which some may find useful). Lion, with Versions, local Time Machine backups, etc. OS X (and all other OSes) perform millions upon millions of small read/writes to and fro in their tasks.įiles are cached multiple times over and a lot of "voodoo" is done under the hood. One of the first things new SSD owners do is scour their systems looking under ever nook and cranny for ways to prevent read and writes (read: slow cell wearing), ultimately in an attempt to lengthen the life of their drive, as if they had only a few short months ( BitMICRO actually debunked some of the myths around SSD life-span).
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Where should the swapfile be located? Will it decrease the lifetime of the SSD? SSDs are cheap these days and all have longer warranties (most are 5 years) than most traditional HDDs. And truthfully, there is little point in purchasing an SSD to make use of its benefits if you are going to offload everything.
How to optimize mac performance software#
However, with that said, having your home folder on a separate drive may be overkill as there are many small files housed there (application preferences, program caches, and other miscellany) that help your software and system function efficiently, and in doing so, you may inadvertently decrease your performance moderately to quite substantially in some cases.Īlso bear in mind that OS X will create tmp files as needed and even juggle things back and forth depending on the demand and this is all written to the drive where your system is installed (places like /var/tmp, etc.). However, if you are short on room (as are most SSD owners), "offloading" some of the bigger and more generic files types (music, movies, etc.) is recommended and won't adversely affect the performance of your day to day. The SSD is the ideal location for all your data. Is the SSD the ideal location for applications?
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