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I am downloading the cyanogen source code for two days now.

I am using Ubuntu 14.04 (VBox Windows 8) to clone the Cyanogenmod 12.0 repo.

repo init -u https://github.com/CyanogenMod/android.git -b cm-12.0

repo sync -c -j 4

Any tips how to speed it up?

user3243494
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  • It looks like your download speed is very slow. Does that affect other things on the VM, e.g. downloading Ubuntu updates? Do you get very slow downloads on the host machine as well? – ChrisGPT was on strike Jan 29 '15 at 17:16
  • Thanks for your reply. No the internet connection is great. 20mbit/s A speedtest in the guest session confirmed that my internet connection is not the problem. – user3243494 Jan 29 '15 at 17:43
  • I added a sentence to my answer. I accidentally posted my comment before it was finished ;) – user3243494 Jan 29 '15 at 17:46
  • What are the `-c` and `-j` arguments you're using with `repo`? They aren't included in the Cyanogenmod GitHub README that you linked to, and they don't seem to be listed in [the repo documentation](http://source.android.com/source/using-repo.html). – ChrisGPT was on strike Jan 29 '15 at 17:51
  • "repo sync -c -j 4" I use the same values as described here: http://wiki.cyanogenmod.org/w/Build_for_jflte#Download_the_source_code – user3243494 Jan 29 '15 at 17:55
  • How many cores does your VM have? Have you tried lowering the `-j` value, as suggested in that wiki page? – ChrisGPT was on strike Jan 29 '15 at 17:57

1 Answers1

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In the comments above, the OP revealed that -j 4 causes repo to use four simultaneous threads, but that the OP's VM only had two cores.

Running more threads than you have cores often hurts performance, and increasing the number of virtual cores, as well as switching to -j 2, seems to have dramatically sped the process up.

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ChrisGPT was on strike
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