Merge "Better handling of low memory situations" am: 43527e1f31 am: a880b4bc2d (d1ec20ee) · Commits · e / os / android_build_soong

ui/build/build.go

+20 −1

Original line number	Diff line number	Diff line
		@@ -141,7 +141,26 @@ func help(ctx Context, config Config, what int) {
		func Build(ctx Context, config Config, what int) {
		ctx.Verboseln("Starting build with args:", config.Arguments())
		ctx.Verboseln("Environment:", config.Environment().Environ())
		ctx.Verbosef("Total RAM: %dGB", config.TotalRAM()/1024/1024/1024)

		if totalRAM := config.TotalRAM(); totalRAM != 0 {
		ram := float32(totalRAM) / (1024 * 1024 * 1024)
		ctx.Verbosef("Total RAM: %.3vGB", ram)

		if ram <= 16 {
		ctx.Println("************************************************************")
		ctx.Printf("You are building on a machine with %.3vGB of RAM\n", ram)
		ctx.Println("")
		ctx.Println("The minimum required amount of free memory is around 16GB,")
		ctx.Println("and even with that, some configurations may not work.")
		ctx.Println("")
		ctx.Println("If you run into segfaults or other errors, try reducing your")
		ctx.Println("-j value.")
		ctx.Println("************************************************************")
		} else if ram <= float32(config.Parallel()) {
		ctx.Printf("Warning: high -j%d count compared to %.3vGB of RAM", config.Parallel(), ram)
		ctx.Println("If you run into segfaults or other errors, try a lower -j value")
		}
		}

		ctx.BeginTrace(metrics.Total, "total")
		defer ctx.EndTrace()

+3 −0

Original line number	Diff line number	Diff line
		@@ -737,6 +737,9 @@ func (c *configImpl) HighmemParallel() int {
		} else if c.totalRAM == 0 {
		// Couldn't detect the total RAM, don't restrict highmem processes.
		return parallel
		} else if c.totalRAM <= 1610241024*1024 {
		// Less than 16GB of ram, restrict to 1 highmem processes
		return 1
		} else if c.totalRAM <= 3210241024*1024 {
		// Less than 32GB of ram, restrict to 2 highmem processes
		return 2