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python3-grpcio(-tools): fix build concurrency issue

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Set GRPC_PYTHON_BUILD_EXT_COMPILER_JOBS to limit spawned compiler
processes. Without this it uses all available CPUs (via
multiprocessing.cpu_count()) and can exhaust build host since there are
lot of files to compile (e.g. with 128 cores it manages to spawn 128 gcc
processes)

Note that this is a general problem for all setuptools based builds with
build_ext compilation which can either compile with 1 thread or
cpu_count threads. grpcio hot-patches setuptools and allows to set
specific build concurrency value.

(From master rev: fe582374d3ba474164005942799eb2bddc52a080)

Signed-off-by: Peter Marko <peter.marko@siemens.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
This commit is contained in:
Peter Marko 2025-03-04 19:59:58 +01:00 committed by Armin Kuster
parent fedd8cf51d
commit 7842d4eb45
2 changed files with 8 additions and 0 deletions
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4
meta-python/recipes-devtools/python/python3-grpcio-tools_1.45.0.bb
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@ -14,4 +14,8 @@ SRC_URI[sha256sum] = "a016cfc21e0d91b3b036d3d4f968d1fdea865dfa03524cb1fbeca84719
RDEPENDS:${PN} = "${PYTHON_PN}-grpcio"
do_compile:prepend() {
export GRPC_PYTHON_BUILD_EXT_COMPILER_JOBS="${@oe.utils.parallel_make(d, False)}"
}
BBCLASSEXTEND = "native nativesdk"

4
meta-python/recipes-devtools/python/python3-grpcio_1.45.0.bb
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@ -35,6 +35,10 @@ BORING_SSL:arm = "1"
BORING_SSL ?= "0"
export GRPC_BUILD_WITH_BORING_SSL_ASM = "${BORING_SSL}"
do_compile:prepend() {
export GRPC_PYTHON_BUILD_EXT_COMPILER_JOBS="${@oe.utils.parallel_make(d, False)}"
}
GRPC_CFLAGS ?= ""
GRPC_CFLAGS:append:toolchain-clang = " -fvisibility=hidden -fno-wrapv -fno-exceptions"
export GRPC_PYTHON_CFLAGS = "${GRPC_CFLAGS}"