doc: add example for building with constrained resources

discussed in github issue #6658
This commit is contained in:
Jarret Dyrbye 2016-01-27 20:17:02 -07:00
parent 473ad1bb02
commit f9298cc60e

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@ -50,12 +50,15 @@ Optional dependencies:
For the versions used in the release, see [release-process.md](release-process.md) under *Fetch and build inputs*.
System requirements
Memory Requirements
--------------------
C++ compilers are memory-hungry. It is recommended to have at least 1 GB of
memory available when compiling Bitcoin Core. With 512MB of memory or less
compilation will take much longer due to swap thrashing.
C++ compilers are memory-hungry. It is recommended to have at least 1.5 GB of
memory available when compiling Bitcoin Core. On systems with less, gcc can be
tuned to conserve memory with additional CXXFLAGS:
./configure CXXFLAGS="--param ggc-min-expand=1 --param ggc-min-heapsize=32768"
Dependency Build Instructions: Ubuntu & Debian
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