diff options
Diffstat (limited to 'tools/syz-make/make.go')
| -rw-r--r-- | tools/syz-make/make.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/syz-make/make.go b/tools/syz-make/make.go index c11ed9e81..6a69d5dd4 100644 --- a/tools/syz-make/make.go +++ b/tools/syz-make/make.go @@ -42,6 +42,14 @@ func impl() ([]Var, error) { return nil, fmt.Errorf("unknown target %v/%v", targetOS, targetArch) } parallelism := runtime.NumCPU() + if os.Getenv("CI") != "" { + // Github actions VMs have 2 vCPUs (Standard_DS2_v2 class). So we don't get lots of speed up + // from make parallelism, but we are getting memory oversubscription and duplicated work + // because make invokes multiple go commands that potentially build same packages in parallel. + // Go command itself parallelizes compiler and test invocations. So disable make parallelism + // to avoid OOM kills. + parallelism = 1 + } if runtime.GOOS == targets.OpenBSD { // Avoids too much concurrency on OpenBSD which can't handle this much. parallelism = 1 |