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275fa4162c
The default NixOS kernels for ARMv7 (and probably ARMv6) do not have support for transparent huge pages, but jemalloc is unable to detect this. This is a known bug and the current solution is to pass --disable-thp to ./configure.
37 lines
1.3 KiB
Nix
37 lines
1.3 KiB
Nix
{ stdenv, fetchurl,
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# jemalloc is unable to correctly detect transparent hugepage support on
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# ARM (https://github.com/jemalloc/jemalloc/issues/526), and the default
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# kernel ARMv6/7 kernel does not enable it, so we explicitly disable support
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thpSupport ? !stdenv.isArm }:
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stdenv.mkDerivation rec {
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name = "jemalloc-${version}";
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version = "4.5.0";
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src = fetchurl {
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url = "https://github.com/jemalloc/jemalloc/releases/download/${version}/${name}.tar.bz2";
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sha256 = "9409d85664b4f135b77518b0b118c549009dc10f6cba14557d170476611f6780";
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};
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# By default, jemalloc puts a je_ prefix onto all its symbols on OSX, which
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# then stops downstream builds (mariadb in particular) from detecting it. This
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# option should remove the prefix and give us a working jemalloc.
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configureFlags = stdenv.lib.optional stdenv.isDarwin "--with-jemalloc-prefix="
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++ stdenv.lib.optional (!thpSupport) "--disable-thp";
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doCheck = true;
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meta = with stdenv.lib; {
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homepage = http://jemalloc.net;
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description = "General purpose malloc(3) implementation";
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longDescription = ''
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malloc(3)-compatible memory allocator that emphasizes fragmentation
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avoidance and scalable concurrency support.
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'';
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license = licenses.bsd2;
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platforms = platforms.all;
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maintainers = with maintainers; [ wkennington ];
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};
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}
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