Merge "Better handling of low memory situations"
diff --git a/ui/build/build.go b/ui/build/build.go
index 1122733..89c3fad 100644
--- a/ui/build/build.go
+++ b/ui/build/build.go
@@ -141,7 +141,26 @@
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()
diff --git a/ui/build/config.go b/ui/build/config.go
index 7fcc471..d66a86c 100644
--- a/ui/build/config.go
+++ b/ui/build/config.go
@@ -737,6 +737,9 @@
} else if c.totalRAM == 0 {
// Couldn't detect the total RAM, don't restrict highmem processes.
return parallel
+ } else if c.totalRAM <= 16*1024*1024*1024 {
+ // Less than 16GB of ram, restrict to 1 highmem processes
+ return 1
} else if c.totalRAM <= 32*1024*1024*1024 {
// Less than 32GB of ram, restrict to 2 highmem processes
return 2