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build: adjust max_rss on a per-CI-host basis

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This avoids pessimizing concurrency on all machines due to e.g. the macOS
machine having high memory usage across the board due to 16K page size.
This commit is contained in:
Alex Rønne Petersen 2025-12-03 01:06:31 +01:00
parent 44543800a5
commit 2d53eab799
No known key found for this signature in database
2 changed files with 168 additions and 7 deletions
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166
build.zig
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@ -465,8 +465,29 @@ pub fn build(b: *std.Build) !void {
.skip_linux = skip_linux,
.skip_llvm = skip_llvm,
.skip_libc = skip_libc,
// 3888779264 was observed on an x86_64-linux-gnu host.
.max_rss = 4000000000,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 1_060_217_241,
else => 1_100_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 659_809_075,
.loongarch64 => 598_902_374,
.riscv64 => 731_258_880,
.s390x => 580_596_121,
.x86_64 => 3_290_894_745,
else => 3_300_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 767_736_217,
else => 800_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 603_070_054,
else => 700_000_000,
},
else => 3_300_000_000,
},
}));
test_modules_step.dependOn(tests.addModuleTests(b, .{
@ -491,6 +512,29 @@ pub fn build(b: *std.Build) !void {
.skip_llvm = skip_llvm,
.skip_libc = true,
.no_builtin = true,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 743_802_470,
else => 800_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 639_565_414,
.loongarch64 => 598_884_352,
.riscv64 => 636_429_516,
.s390x => 574_166_630,
.x86_64 => 764_861_644,
else => 800_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 701_413_785,
else => 800_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 536_414_208,
else => 600_000_000,
},
else => 1_100_000_000,
},
}));
test_modules_step.dependOn(tests.addModuleTests(b, .{
@ -515,6 +559,29 @@ pub fn build(b: *std.Build) !void {
.skip_llvm = skip_llvm,
.skip_libc = true,
.no_builtin = true,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 557_892_403,
else => 600_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 615_302_758,
.loongarch64 => 598_974_464,
.riscv64 => 382_786_764,
.s390x => 395_555_635,
.x86_64 => 692_348_518,
else => 700_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 451_389_030,
else => 500_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 367_747_072,
else => 400_000_000,
},
else => 700_000_000,
},
}));
test_modules_step.dependOn(tests.addModuleTests(b, .{
@ -538,8 +605,29 @@ pub fn build(b: *std.Build) !void {
.skip_linux = skip_linux,
.skip_llvm = skip_llvm,
.skip_libc = skip_libc,
// I observed a value of 5605064704 on the M2 CI.
.max_rss = 6165571174,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 3_756_422_348,
else => 3_800_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 6_732_817_203,
.loongarch64 => 3_216_349_593,
.riscv64 => 3_570_899_763,
.s390x => 3_652_514_201,
.x86_64 => 3_249_546_854,
else => 6_800_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 8_273_795_481,
else => 8_300_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 3_750_236_160,
else => 3_800_000_000,
},
else => 8_300_000_000,
},
}));
const unit_tests_step = b.step("test-unit", "Run the compiler source unit tests");
@ -555,6 +643,29 @@ pub fn build(b: *std.Build) !void {
.use_llvm = use_llvm,
.use_lld = use_llvm,
.zig_lib_dir = b.path("lib"),
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 2_188_099_584,
else => 2_200_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 1_991_934_771,
.loongarch64 => 1_844_538_572,
.riscv64 => 2_459_003_289,
.s390x => 1_781_248_409,
.x86_64 => 977_192_550,
else => 2_500_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 2_062_393_344,
else => 2_100_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 1_953_087_488,
else => 2_000_000_000,
},
else => 2_200_000_000,
},
});
if (link_libc) {
unit_tests.root_module.link_libc = true;
@ -580,6 +691,29 @@ pub fn build(b: *std.Build) !void {
.skip_linux = skip_linux,
.skip_llvm = skip_llvm,
.skip_release = skip_release,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 566_218_752,
else => 600_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 1_318_185_369,
.loongarch64 => 1_422_904_524,
.riscv64 => 449_924_710,
.s390x => 1_946_743_603,
.x86_64 => 2_139_993_292,
else => 2_200_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 1_813_612_134,
else => 1_900_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 386_287_616,
else => 400_000_000,
},
else => 2_200_000_000,
},
}));
test_step.dependOn(tests.addLinkTests(b, enable_macos_sdk, enable_ios_sdk, enable_symlinks_windows));
test_step.dependOn(tests.addStackTraceTests(b, test_filters, skip_non_native));
@ -735,7 +869,29 @@ fn addCompilerMod(b: *std.Build, options: AddCompilerModOptions) *std.Build.Modu
fn addCompilerStep(b: *std.Build, options: AddCompilerModOptions) *std.Build.Step.Compile {
const exe = b.addExecutable(.{
.name = "zig",
.max_rss = 7_800_000_000,
.max_rss = switch (b.graph.host.result.os.tag) {
.freebsd => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 6_044_158_771,
else => 6_100_000_000,
},
.linux => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 6_240_805_683,
.loongarch64 => 5_024_158_515,
.riscv64 => 6_996_309_196,
.s390x => 4_997_174_476,
.x86_64 => 5_486_090_649,
else => 7_000_000_000,
},
.macos => switch (b.graph.host.result.cpu.arch) {
.aarch64 => 6_639_145_779,
else => 6_700_000_000,
},
.windows => switch (b.graph.host.result.cpu.arch) {
.x86_64 => 5_770_394_009,
else => 5_800_000_000,
},
else => 7_000_000_000,
},
.root_module = addCompilerMod(b, options),
});
exe.stack_size = stack_size;

9
test/tests.zig
View file

@ -2344,8 +2344,11 @@ fn addOneModuleTest(
const libc_suffix = if (test_target.link_libc == true) "-libc" else "";
const model_txt = target.cpu.model.name;
// wasm32-wasi builds need more RAM, idk why
const max_rss = if (target.os.tag == .wasi)
// These emulated targets need a lot more RAM for unknown reasons.
const max_rss = if (mem.eql(u8, options.name, "std") and
(target.cpu.arch == .hexagon or
(target.cpu.arch.isRISCV() and !resolved_target.query.isNative()) or
target.cpu.arch.isWasm()))
options.max_rss * 2
else
options.max_rss;
@ -2532,6 +2535,7 @@ const CAbiTestOptions = struct {
skip_linux: bool,
skip_llvm: bool,
skip_release: bool,
max_rss: usize = 0,
};
pub fn addCAbiTests(b: *std.Build, options: CAbiTestOptions) *Step {
@ -2604,6 +2608,7 @@ pub fn addCAbiTests(b: *std.Build, options: CAbiTestOptions) *Step {
.root_module = test_mod,
.use_llvm = c_abi_target.use_llvm,
.use_lld = c_abi_target.use_lld,
.max_rss = options.max_rss,
});
// This test is intentionally trying to check if the external ABI is