reference resources: http://ios.jobbole.com/93171/
The first step is to create an. sh file. The code is as follows.
#!/ bin/bash
RAMDISK=”ramdisk”
SIZE=1024 #size in MB for ramdisk.
diskutil erasevolume HFS+ $RAMDISK \
`hdiutil attach -nomount ram://$[SIZE*2048]`
Step 2: Run the. sh file.
Later, you will find that you will have an extra RAM disk, which is about 1 GB in size.
Step 3: Connect Xcode. Xcode -> Preferences -> Locations -> Locations Tab， Configure DerivedData.
