1bdb138710
Fixes #43015 for me and hopefully also similar issues. == Resource consumption == TL;DR: no change for small-memory cases, less CPU for large-memory cases. I assume almost all of the large memory usage is just the expression evaluation and managed by the GC, so I used just `nix-env -q...` to test. Old and new lines for each command follow. I tried to run each several times, but the values were very stable (<1% difference on re-runs), so only one line for each command-version pair is provided. $ time nix-env -f . -qaP --description -A nix >/dev/null - 0.06user 0.01system 0:00.07elapsed 101%CPU (0avgtext+0avgdata 29036maxresident)k + 0.06user 0.01system 0:00.07elapsed 102%CPU (0avgtext+0avgdata 29864maxresident)k $ time nix-env -f . -qaP --description >/dev/null - 6.45user 0.36system 0:06.82elapsed 99%CPU (0avgtext+0avgdata 1021024maxresident)k + 6.23user 0.33system 0:06.57elapsed 100%CPU (0avgtext+0avgdata 938408maxresident)k $ time nix-env -f . --show-trace -qa --drv-path --system --meta --xml 2>&1 >/dev/null - 56.35user 0.96system 0:31.03elapsed 184%CPU (0avgtext+0avgdata 3207708maxresident)k + 44.80user 0.91system 0:26.12elapsed 175%CPU (0avgtext+0avgdata 3192696maxresident)k $ time ./result-nix-large/bin/nix-instantiate --dry-run --eval --strict \ --show-trace ./maintainers/scripts/eval-release.nix > /dev/null - Too many heap sections: Increase MAXHINCR or MAX_HEAP_SECTS - Command terminated by signal 6 - 175.18user 2.68system 1:17.42elapsed 229%CPU (0avgtext+0avgdata 8468440maxresident)k + 178.48user 2.78system 1:15.11elapsed 241%CPU (0avgtext+0avgdata 8460572maxresident)k
75 lines
2.6 KiB
Nix
75 lines
2.6 KiB
Nix
{ lib, stdenv, fetchurl, fetchpatch, pkgconfig, libatomic_ops
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, enableLargeConfig ? false # doc: https://github.com/ivmai/bdwgc/blob/v7.6.6/doc/README.macros#L179
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, buildPlatform, hostPlatform
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}:
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stdenv.mkDerivation rec {
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name = "boehm-gc-${version}";
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version = "7.6.6";
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src = fetchurl {
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urls = [
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"http://www.hboehm.info/gc/gc_source/gc-${version}.tar.gz"
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"https://github.com/ivmai/bdwgc/releases/download/v${version}/gc-${version}.tar.gz"
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];
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sha256 = "1p1r015a7jbpvkkbgzv1y8nxrbbp6dg0mq3ksi6ji0qdz3wfss79";
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};
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buildInputs = [ libatomic_ops ];
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nativeBuildInputs = [ pkgconfig ];
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outputs = [ "out" "dev" "doc" ];
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separateDebugInfo = stdenv.isLinux;
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preConfigure = stdenv.lib.optionalString (stdenv.hostPlatform.libc == "musl") ''
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export NIX_CFLAGS_COMPILE+="-D_GNU_SOURCE -DUSE_MMAP -DHAVE_DL_ITERATE_PHDR"
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'';
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patches = [ (fetchpatch {
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url = "https://gitweb.gentoo.org/proj/musl.git/plain/dev-libs/boehm-gc/files/boehm-gc-7.6.0-sys_select.patch";
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sha256 = "1gydwlklvci30f5dpp5ccw2p2qpph5y41r55wx9idamjlq66fbb3";
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}) ] ++
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# https://github.com/ivmai/bdwgc/pull/208
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lib.optional hostPlatform.isRiscV ./riscv.patch;
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configureFlags =
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[ "--enable-cplusplus" ]
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++ lib.optional enableLargeConfig "--enable-large-config"
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++ lib.optional (stdenv.hostPlatform.libc == "musl") "--disable-static";
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doCheck = true; # not cross;
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# Don't run the native `strip' when cross-compiling.
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dontStrip = hostPlatform != buildPlatform;
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enableParallelBuilding = true;
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meta = {
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description = "The Boehm-Demers-Weiser conservative garbage collector for C and C++";
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longDescription = ''
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The Boehm-Demers-Weiser conservative garbage collector can be used as a
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garbage collecting replacement for C malloc or C++ new. It allows you
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to allocate memory basically as you normally would, without explicitly
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deallocating memory that is no longer useful. The collector
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automatically recycles memory when it determines that it can no longer
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be otherwise accessed.
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The collector is also used by a number of programming language
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implementations that either use C as intermediate code, want to
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facilitate easier interoperation with C libraries, or just prefer the
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simple collector interface.
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Alternatively, the garbage collector may be used as a leak detector for
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C or C++ programs, though that is not its primary goal.
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'';
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homepage = http://hboehm.info/gc/;
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# non-copyleft, X11-style license
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license = http://hboehm.info/gc/license.txt;
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maintainers = [ ];
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platforms = stdenv.lib.platforms.all;
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};
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}
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