diff options
Diffstat (limited to 'test/benchmarks/harness/util.go')
| -rw-r--r-- | test/benchmarks/harness/util.go | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/benchmarks/harness/util.go b/test/benchmarks/harness/util.go index eda2eeffb..bc551c582 100644 --- a/test/benchmarks/harness/util.go +++ b/test/benchmarks/harness/util.go @@ -36,3 +36,11 @@ func WaitUntilServing(ctx context.Context, machine Machine, server net.IP, port }, "sh", "-c", cmd) return err } + +// DropCaches drops caches on the provided machine. Requires root. +func DropCaches(machine Machine) error { + if out, err := machine.RunCommand("/bin/sh", "-c", "sync | sysctl vm.drop_caches=3"); err != nil { + return fmt.Errorf("failed to drop caches: %v logs: %s", err, out) + } + return nil +} |