Author: trasz
Date: Thu Nov 2 12:13:02 2017
New Revision: 325315
URL: https://svnweb.freebsd.org/changeset/base/325315
Log:
Add select(2) benchmark. It takes four pointers; unfortunately it's
somewhat heavy.
Obtained from: CheriBSD
MFC after: 2 weeks
Sponsored by: DARPA, AFRL
Modified:
head/tools/tools/syscall_timing/syscall_timing.c
Modified: head/tools/tools/syscall_timing/syscall_timing.c
==============================================================================
--- head/tools/tools/syscall_timing/syscall_timing.c Thu Nov 2 12:12:18
2017 (r325314)
+++ head/tools/tools/syscall_timing/syscall_timing.c Thu Nov 2 12:13:02
2017 (r325315)
@@ -178,7 +178,6 @@ test_getpriority(uintmax_t num, uintmax_t int_arg, con
return (i);
}
-
uintmax_t
test_pipe(uintmax_t num, uintmax_t int_arg, const char *path)
{
@@ -208,6 +207,31 @@ test_pipe(uintmax_t num, uintmax_t int_arg, const char
}
uintmax_t
+test_select(uintmax_t num, uintmax_t int_arg, const char *path)
+{
+ fd_set readfds, writefds, exceptfds;
+ struct timeval tv;
+ uintmax_t i;
+ int error;
+
+ FD_ZERO(&readfds);
+ FD_ZERO(&writefds);
+ FD_ZERO(&exceptfds);
+
+ tv.tv_sec = 0;
+ tv.tv_usec = 0;
+
+ benchmark_start();
+ for (i = 0; i < num; i++) {
+ if (alarm_fired)
+ break;
+ (void)select(0, &readfds, &writefds, &exceptfds, &tv);
+ }
+ benchmark_stop();
+ return (i);
+}
+
+uintmax_t
test_socket_stream(uintmax_t num, uintmax_t int_arg, const char *path)
{
uintmax_t i;
@@ -653,6 +677,7 @@ static const struct test tests[] = {
{ "gettimeofday", test_gettimeofday },
{ "getpriority", test_getpriority },
{ "pipe", test_pipe },
+ { "select", test_select },
{ "socket_local_stream", test_socket_stream, .t_int = PF_LOCAL },
{ "socket_local_dgram", test_socket_dgram, .t_int = PF_LOCAL },
{ "socketpair_stream", test_socketpair_stream },
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