After 10.8.3 is updated, trim must be enabled for ssd.

After 10.8.3 is updated, trim must be enabled for ssd to solve the problem. After 10.8.3 is updated, trim must be restarted. It is easy to open a terminal. First open your terminal and enter the following command: 1. for security, this step is the backup Driver (password may be required) sudo cp-r/System/Library/Extensions/IOAHCIFamily. kext/Contents/PlugIns/IOAHCIBlockStorage. kext // System/Library/Extensions/IOAHCIFamily. kext/Contents/PlugIns/IOAHCIBlockStorage. BACKUP 2. update sudo perl-pi-e's | (\ x52 \ x6F \ x74 \ x61 \ x74 \ x69 \ x6F \ x6E \ x61 \ x6C \ x00 {1, 20 }) [^ \ x00] {9} (\ x00 {1, 20} \ x54) | $1 \ x00 \ x00 \ x00 \ x00 \ x00 \ x00 \ x00 \ x00 \ x00 $2 | sg '/System/Library/Exte Nsions/IOAHCIFamily. kext/Contents/PlugIns/IOAHCIBlockStorage. kext/Contents/MacOS/IOAHCIBlockStorage 3. after trim sudo kextcache-system-prelinked-kernel is executed, the system prompts: Kernel file/mach_kernel does not contain requested arch: i386... 4. Clear cache sudo kextcache-system-caches 5. restart the system. After restart, trim is enabled!