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Add microbenchmark for create/unlink of a zero-byte file.

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Sponsored by:	Google, Inc.
MFC after:	2 weeks
This commit is contained in:
Robert Watson 2010-10-24 09:14:21 +00:00
parent 5bf52f1fb5
commit 6e4d736661
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=214261
1 changed files with 32 additions and 3 deletions
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35
tools/tools/syscall_timing/syscall_timing.c
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@ -259,6 +259,34 @@ test_socketpair_dgram(uintmax_t num, uintmax_t int_arg, const char *path)
return (i);
}
uintmax_t
test_create_unlink(uintmax_t num, uintmax_t int_arg, const char *path)
{
uintmax_t i;
int fd;
(void)unlink(path);
fd = open(path, O_RDWR | O_CREAT, 0600);
if (fd < 0)
err(-1, "test_create_unlink: create: %s", path);
close(fd);
if (unlink(path) < 0)
err(-1, "test_create_unlink: unlink: %s", path);
benchmark_start();
for (i = 0; i < num; i++) {
if (alarm_fired)
break;
fd = open(path, O_RDWR | O_CREAT, 0600);
if (fd < 0)
err(-1, "test_create_unlink: create: %s", path);
close(fd);
if (unlink(path) < 0)
err(-1, "test_create_unlink: unlink: %s", path);
}
benchmark_stop();
return (i);
}
uintmax_t
test_open_close(uintmax_t num, uintmax_t int_arg, const char *path)
{
@ -292,7 +320,7 @@ test_read(uintmax_t num, uintmax_t int_arg, const char *path)
fd = open(path, O_RDONLY);
if (fd < 0)
err(-1, "test_open_close: %s", path);
err(-1, "test_open_read: %s", path);
(void)pread(fd, buf, int_arg, 0);
benchmark_start();
@ -315,7 +343,7 @@ test_open_read_close(uintmax_t num, uintmax_t int_arg, const char *path)
fd = open(path, O_RDONLY);
if (fd < 0)
err(-1, "test_open_close: %s", path);
err(-1, "test_open_read_close: %s", path);
(void)read(fd, buf, int_arg);
close(fd);
@ -325,7 +353,7 @@ test_open_read_close(uintmax_t num, uintmax_t int_arg, const char *path)
break;
fd = open(path, O_RDONLY);
if (fd < 0)
err(-1, "test_open_close: %s", path);
err(-1, "test_open_read_close: %s", path);
(void)read(fd, buf, int_arg);
close(fd);
}
@ -587,6 +615,7 @@ static const struct test tests[] = {
{ "socketpair_dgram", test_socketpair_dgram },
{ "socket_tcp", test_socket_stream, .t_int = PF_INET },
{ "socket_udp", test_socket_dgram, .t_int = PF_INET },
{ "create_unlink", test_create_unlink, .t_flags = FLAG_PATH },
{ "open_close", test_open_close, .t_flags = FLAG_PATH },
{ "open_read_close_1", test_open_read_close, .t_flags = FLAG_PATH,
.t_int = 1 },