runtime·usleep    87 src/pkg/runtime/os_nacl.c runtime·usleep(uint32 us)
runtime·usleep   138 src/pkg/runtime/os_plan9.c runtime·usleep(uint32 µs)
runtime·usleep   568 src/pkg/runtime/os_solaris.c runtime·usleep(uint32 us)
runtime·usleep   325 src/pkg/runtime/os_windows.c runtime·usleep(uint32 us)