perf bench syscall: Add getpgid syscall benchmark

This commit adds a simple getpgid syscall benchmark, more syscall
benchmarks can be added in the future.

Signed-off-by: Tiezhu Yang <[email protected]>
Acked-by: Namhyung Kim <[email protected]>
Cc: Alexander Shishkin <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Jiri Olsa <[email protected]>
Cc: Mark Rutland <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>

1 files changed, 11 insertions, 0 deletions

diff --git a/tools/perf/bench/syscall.c b/tools/perf/bench/syscall.c
index 746fd7171921..6411b146ba68 100644
--- a/tools/perf/bench/syscall.c
+++ b/tools/perf/bench/syscall.c
@@ -46,6 +46,9 @@ static int bench_syscall_common(int argc, const char **argv, int syscall)
 		case __NR_getppid:
 			getppid();
 			break;
+		case __NR_getpgid:
+			getpgid(0);
+			break;
 		default:
 			break;
 		}
@@ -58,6 +61,9 @@ static int bench_syscall_common(int argc, const char **argv, int syscall)
 	case __NR_getppid:
 		name = "getppid()";
 		break;
+	case __NR_getpgid:
+		name = "getpgid()";
+		break;
 	default:
 		break;
 	}
@@ -100,3 +106,8 @@ int bench_syscall_basic(int argc, const char **argv)
 {
 	return bench_syscall_common(argc, argv, __NR_getppid);
 }
+
+int bench_syscall_getpgid(int argc, const char **argv)
+{
+	return bench_syscall_common(argc, argv, __NR_getpgid);
+}