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For Android build, what is the recommended hardware requirement for the Electric Make machine?

Our customers use Accelerator to accelerate the Android build. They are interested get a recommendation about the hardware requirement for the Electric Make machine since they think the information in "ElectricAccelerator Installation and Configuration Guide" is not specific enough for Android build.

Besides, what if we would like to use a virtual machine as the Electric Make machine for the Android build? Do we need to allocate more hardware resource for the virtual machine?

avatar image By huafeng 2.2k asked Dec 06, 2012 at 10:41 PM
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The Android build instructions answer most of your questions for you:

  • You need at least 30GB free disk space for a single Android build, and more than 100GB for a full set of builds.

  • You need at least 16GB RAM.

  • You must have a 64-bit CPU.

In addition, I would suggest at least a quad-core system.

Beyond those base requirements, the question you need to answer is, "how fast do I want this build to run?" The faster you want it, the more strain you will put on the hardware, whether that is real or virtual. For example, if the build produces 30GB of output and you want the build to complete in 10 minutes, your disk had better be able to sustain 30GB/10m = 51MB/s transfer rates or better. Likewise, if the build, with Accelerator, generates 10GB of network traffic, your network had better be able to sustain 10GB/10m = 17MB/s transfer rates. You can get some information about disk and network utilization from emake's performance metrics, generated by adding --emake-debug=g to the command-line. Then you can look for the Bandwidth metrics, for example:

 Bandwidth:
  Network to agent:    11386.6 MB,   3.6 MB/s active, 9.1 MB/s overall
  Network from agent:  16843.8 MB,  15.5 MB/s active, 13.4 MB/s overall
  To disk:             26852.5 MB,  40.7 MB/s active, 21.4 MB/s overall
  From disk:           15565.5 MB,   4.9 MB/s active, 12.4 MB/s overall

So, look at the characteristics of your build, consider what your performance targets are, do the math and check whether your proposed system is capable of delivering the performance you desire.

avatar image By eric melski ♦♦ 6k answered Dec 07, 2012 at 11:57 AM
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