From f9298cc60e093533ce109aedd7d54d59e87865cd Mon Sep 17 00:00:00 2001 From: Jarret Dyrbye Date: Wed, 27 Jan 2016 20:17:02 -0700 Subject: [PATCH] doc: add example for building with constrained resources discussed in github issue #6658 --- doc/build-unix.md | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/doc/build-unix.md b/doc/build-unix.md index 31bbab7f0f9..943bfadb918 100644 --- a/doc/build-unix.md +++ b/doc/build-unix.md @@ -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 ----------------------------------------------