On Fri, Jun 14, 2019 at 12:26 AM Alexei Starovoitov <ast@xxxxxxxxxx> wrote:
>
> Add a bunch of loop tests. Most of them are created by replacing
> '#pragma unroll' with '#pragma clang loop unroll(disable)'
>
> Several tests are artificially large:
> /* partial unroll. llvm will unroll loop ~150 times.
> * C loop count -> 600.
> * Asm loop count -> 4.
> * 16k insns in loop body.
> * Total of 5 such loops. Total program size ~82k insns.
> */
> "./pyperf600.o",
>
> /* no unroll at all.
> * C loop count -> 600.
> * ASM loop count -> 600.
> * ~110 insns in loop body.
> * Total of 5 such loops. Total program size ~1500 insns.
> */
> "./pyperf600_nounroll.o",
>
> /* partial unroll. 19k insn in a loop.
> * Total program size 20.8k insn.
> * ~350k processed_insns
> */
> "./strobemeta.o",
>
> Signed-off-by: Alexei Starovoitov <ast@xxxxxxxxxx>
> Acked-by: Andrii Nakryiko <andriin@xxxxxx>
> ---
<snip>
> diff --git a/tools/testing/selftests/bpf/progs/strobemeta.c b/tools/testing/selftests/bpf/progs/strobemeta.c
> new file mode 100644
> index 000000000000..d3df3d86f092
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/progs/strobemeta.c
> @@ -0,0 +1,10 @@
> +// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
given strobemeta.h is GPL-2, this should probably be same
> +// Copyright (c) 2019 Facebook
> +
> +#define STROBE_MAX_INTS 2
> +#define STROBE_MAX_STRS 25
> +#define STROBE_MAX_MAPS 100
> +#define STROBE_MAX_MAP_ENTRIES 20
> +/* full unroll by llvm #undef NO_UNROLL */
> +#include "strobemeta.h"
> +
> diff --git a/tools/testing/selftests/bpf/progs/strobemeta.h b/tools/testing/selftests/bpf/progs/strobemeta.h
> new file mode 100644
> index 000000000000..1ff73f60a3e4
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/progs/strobemeta.h
> @@ -0,0 +1,528 @@
> +// SPDX-License-Identifier: GPL-2.0
> +// Copyright (c) 2019 Facebook
> +
<snip>
> +char _license[] SEC("license") = "GPL";
> diff --git a/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c b/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c
> new file mode 100644
> index 000000000000..f0a1669e11d6
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/progs/strobemeta_nounroll1.c
> @@ -0,0 +1,9 @@
> +// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
... and here
> +// Copyright (c) 2019 Facebook
> +
> +#define STROBE_MAX_INTS 2
> +#define STROBE_MAX_STRS 25
> +#define STROBE_MAX_MAPS 13
> +#define STROBE_MAX_MAP_ENTRIES 20
> +#define NO_UNROLL
> +#include "strobemeta.h"
> diff --git a/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c b/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c
> new file mode 100644
> index 000000000000..4291a7d642e7
> --- /dev/null
> +++ b/tools/testing/selftests/bpf/progs/strobemeta_nounroll2.c
> @@ -0,0 +1,9 @@
> +// SPDX-License-Identifier: (LGPL-2.1 OR BSD-2-Clause)
... and here
> +// Copyright (c) 2019 Facebook
> +
> +#define STROBE_MAX_INTS 2
> +#define STROBE_MAX_STRS 25
> +#define STROBE_MAX_MAPS 30
> +#define STROBE_MAX_MAP_ENTRIES 20
> +#define NO_UNROLL
> +#include "strobemeta.h"
<snip>
