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Add select(2) benchmark. It takes four pointers; unfortunately it's

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somewhat heavy.

Obtained from:	CheriBSD
MFC after:	2 weeks
Sponsored by:	DARPA, AFRL
This commit is contained in:
trasz 2017-11-02 12:13:02 +00:00
parent 86f70c08a7
commit e854cfb828
1 changed files with 26 additions and 1 deletions
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27
tools/tools/syscall_timing/syscall_timing.c
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@ -178,7 +178,6 @@ test_getpriority(uintmax_t num, uintmax_t int_arg, const char *path)
return (i);
}
uintmax_t
test_pipe(uintmax_t num, uintmax_t int_arg, const char *path)
{
@ -207,6 +206,31 @@ test_pipe(uintmax_t num, uintmax_t int_arg, const char *path)
return (i);
}
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)
{
@ -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 },