Author: rwatson
Date: Sun Oct 24 09:14:21 2010
New Revision: 214261
URL: http://svn.freebsd.org/changeset/base/214261
Log:
Add microbenchmark for create/unlink of a zero-byte file.
Sponsored by: Google, Inc.
MFC after: 2 weeks
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 Sun Oct 24 05:22:07
2010 (r214260)
+++ head/tools/tools/syscall_timing/syscall_timing.c Sun Oct 24 09:14:21
2010 (r214261)
@@ -260,6 +260,34 @@ test_socketpair_dgram(uintmax_t num, uin
}
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)
{
uintmax_t i;
@@ -292,7 +320,7 @@ test_read(uintmax_t num, uintmax_t int_a
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, uint
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, uint
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 },
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