mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-21 11:13:30 +00:00
Further enhancements to syscall_timing:
- Use getopt rather than hand-parsed arguments - Allow iterations to be specified and/or a new number of seconds bound on the number of iterations - Fix printout of timer resolution - Add new tests, such as TCP and UDP socket creation, and open/read/close of /dev/zero and /dev/null. Sponsored by: Google, Inc. MFC after: 2 weeks
This commit is contained in:
Robert Watson
parent
b459a68591
commit
1dca6a2844
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=214142
@ -37,12 +37,16 @@
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#include <err.h>
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#include <fcntl.h>
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#include <inttypes.h>
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#include <limits.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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static struct timespec ts_start, ts_end;
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static int alarm_timeout;
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static volatile int alarm_fired;
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#define timespecsub(vvp, uvp) \
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do { \
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@ -54,10 +58,22 @@ static struct timespec ts_start, ts_end;
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} \
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} while (0)
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static void
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alarm_handler(int signum)
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{
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alarm_fired = 1;
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}
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static void
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benchmark_start(void)
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{
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alarm_fired = 0;
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if (alarm_timeout) {
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signal(SIGALRM, alarm_handler);
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alarm(alarm_timeout);
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}
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assert(clock_gettime(CLOCK_REALTIME, &ts_start) == 0);
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}
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@ -68,50 +84,62 @@ benchmark_stop(void)
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assert(clock_gettime(CLOCK_REALTIME, &ts_end) == 0);
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}
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void
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test_getuid(int num)
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uint64_t
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test_getuid(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i;
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uint64_t i;
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/*
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* Thread-local data should require no locking if system
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* call is MPSAFE.
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*/
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benchmark_start();
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for (i = 0; i < num; i++)
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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getuid();
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}
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benchmark_stop();
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return (i);
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}
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void
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test_getppid(int num)
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uint64_t
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test_getppid(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i;
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uint64_t i;
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/*
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* This is process-local, but can change, so will require a
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* lock.
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*/
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benchmark_start();
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for (i = 0; i < num; i++)
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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getppid();
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}
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benchmark_stop();
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return (i);
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}
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void
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test_clock_gettime(int num)
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uint64_t
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test_clock_gettime(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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struct timespec ts;
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int i;
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uint64_t i;
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benchmark_start();
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for (i = 0; i < num; i++)
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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(void)clock_gettime(CLOCK_REALTIME, &ts);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_pipe(int num)
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uint64_t
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test_pipe(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int fd[2], i;
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@ -127,56 +155,66 @@ test_pipe(int num)
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close(fd[1]);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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if (pipe(fd) == -1)
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err(-1, "test_pipe: pipe");
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close(fd[0]);
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close(fd[1]);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_socket_stream(int num)
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uint64_t
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test_socket_stream(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i, so;
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uint64_t i, so;
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so = socket(PF_LOCAL, SOCK_STREAM, 0);
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so = socket(int_arg, SOCK_STREAM, 0);
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if (so < 0)
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err(-1, "test_socket_stream: socket");
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close(so);
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benchmark_start();
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for (i = 0; i < num; i++) {
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so = socket(PF_LOCAL, SOCK_STREAM, 0);
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if (alarm_fired)
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break;
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so = socket(int_arg, SOCK_STREAM, 0);
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if (so == -1)
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err(-1, "test_socket_stream: socket");
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close(so);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_socket_dgram(int num)
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uint64_t
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test_socket_dgram(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i, so;
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uint64_t i, so;
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so = socket(PF_LOCAL, SOCK_DGRAM, 0);
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so = socket(int_arg, SOCK_DGRAM, 0);
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if (so < 0)
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err(-1, "test_socket_dgram: socket");
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close(so);
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benchmark_start();
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for (i = 0; i < num; i++) {
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so = socket(PF_LOCAL, SOCK_DGRAM, 0);
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if (alarm_fired)
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break;
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so = socket(int_arg, SOCK_DGRAM, 0);
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if (so == -1)
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err(-1, "test_socket_dgram: socket");
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close(so);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_socketpair_stream(int num)
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uint64_t
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test_socketpair_stream(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i, so[2];
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uint64_t i;
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int so[2];
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if (socketpair(PF_LOCAL, SOCK_STREAM, 0, so) == -1)
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err(-1, "test_socketpair_stream: socketpair");
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@ -184,18 +222,22 @@ test_socketpair_stream(int num)
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close(so[1]);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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if (socketpair(PF_LOCAL, SOCK_STREAM, 0, so) == -1)
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err(-1, "test_socketpair_stream: socketpair");
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close(so[0]);
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close(so[1]);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_socketpair_dgram(int num)
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uint64_t
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test_socketpair_dgram(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i, so[2];
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uint64_t i;
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int so[2];
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if (socketpair(PF_LOCAL, SOCK_DGRAM, 0, so) == -1)
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err(-1, "test_socketpair_dgram: socketpair");
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@ -203,16 +245,71 @@ test_socketpair_dgram(int num)
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close(so[1]);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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if (socketpair(PF_LOCAL, SOCK_DGRAM, 0, so) == -1)
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err(-1, "test_socketpair_dgram: socketpair");
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close(so[0]);
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close(so[1]);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_dup(int num)
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uint64_t
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test_open_close(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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const char *path = string_arg;
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uint64_t i;
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int fd;
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fd = open(path, O_RDONLY);
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if (fd < 0)
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err(-1, "test_open_close: %s", path);
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close(fd);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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fd = open(path, O_RDONLY);
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if (fd < 0)
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err(-1, "test_open_close: %s", path);
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close(fd);
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}
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benchmark_stop();
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return (i);
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}
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uint64_t
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test_open_read_close(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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char buf[int_arg];
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uint64_t i;
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int fd;
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fd = open(string_arg, O_RDONLY);
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if (fd < 0)
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err(-1, "test_open_close: %s", string_arg);
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(void)read(fd, buf, int_arg);
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close(fd);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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fd = open(string_arg, O_RDONLY);
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if (fd < 0)
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err(-1, "test_open_close: %s", string_arg);
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(void)read(fd, buf, int_arg);
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close(fd);
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}
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benchmark_stop();
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return (i);
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}
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uint64_t
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test_dup(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int fd, i, shmfd;
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@ -224,18 +321,21 @@ test_dup(int num)
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close(fd);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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fd = dup(shmfd);
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if (fd >= 0)
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close(fd);
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}
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benchmark_stop();
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close(shmfd);
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return (i);
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}
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void
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test_shmfd(int num)
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uint64_t
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test_shmfd(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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int i, shmfd;
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uint64_t i, shmfd;
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shmfd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0600);
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if (shmfd < 0)
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@ -243,19 +343,22 @@ test_shmfd(int num)
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close(shmfd);
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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shmfd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0600);
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if (shmfd < 0)
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err(-1, "test_shmfd: shm_open");
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close(shmfd);
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}
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benchmark_stop();
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return (i);
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}
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void
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test_fstat_shmfd(int num)
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uint64_t
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test_fstat_shmfd(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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struct stat sb;
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int i, shmfd;
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uint64_t i, shmfd;
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shmfd = shm_open(SHM_ANON, O_CREAT | O_RDWR, 0600);
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if (shmfd < 0)
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@ -263,17 +366,21 @@ test_fstat_shmfd(int num)
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if (fstat(shmfd, &sb) < 0)
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err(-1, "test_fstat_shmfd: fstat");
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benchmark_start();
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for (i = 0; i < num; i++)
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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(void)fstat(shmfd, &sb);
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}
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benchmark_stop();
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close(shmfd);
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return (i);
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}
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void
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test_fork(int num)
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uint64_t
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test_fork(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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pid_t pid;
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int i;
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uint64_t i;
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pid = fork();
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if (pid < 0)
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@ -284,6 +391,8 @@ test_fork(int num)
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err(-1, "test_fork: waitpid");
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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pid = fork();
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if (pid < 0)
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err(-1, "test_fork: fork");
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@ -293,13 +402,14 @@ test_fork(int num)
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err(-1, "test_fork: waitpid");
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}
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benchmark_stop();
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return (i);
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}
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void
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test_vfork(int num)
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uint64_t
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test_vfork(uint64_t num, uint64_t int_arg, const char *string_arg)
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{
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pid_t pid;
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int i;
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uint64_t i;
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pid = vfork();
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if (pid < 0)
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@ -310,6 +420,8 @@ test_vfork(int num)
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err(-1, "test_vfork: waitpid");
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benchmark_start();
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for (i = 0; i < num; i++) {
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if (alarm_fired)
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break;
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pid = vfork();
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if (pid < 0)
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err(-1, "test_vfork: vfork");
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@ -319,17 +431,18 @@ test_vfork(int num)
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err(-1, "test_vfork: waitpid");
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}
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benchmark_stop();
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return (i);
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}
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#define USR_BIN_TRUE "/usr/bin/true"
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static char *execve_args[] = { USR_BIN_TRUE, NULL};
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extern char **environ;
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|
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void
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test_fork_exec(int num)
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uint64_t
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test_fork_exec(uint64_t num, uint64_t int_arg, const char *string_arg)
|
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{
|
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pid_t pid;
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int i;
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uint64_t i;
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pid = fork();
|
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if (pid < 0)
|
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@ -342,6 +455,8 @@ test_fork_exec(int num)
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err(-1, "test_fork: waitpid");
|
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benchmark_start();
|
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for (i = 0; i < num; i++) {
|
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if (alarm_fired)
|
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break;
|
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pid = fork();
|
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if (pid < 0)
|
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err(-1, "test_fork_exec: fork");
|
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@ -353,13 +468,14 @@ test_fork_exec(int num)
|
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err(-1, "test_fork_exec: waitpid");
|
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}
|
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benchmark_stop();
|
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return (i);
|
||||
}
|
||||
|
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void
|
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test_vfork_exec(int num)
|
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uint64_t
|
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test_vfork_exec(uint64_t num, uint64_t int_arg, const char *string_arg)
|
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{
|
||||
pid_t pid;
|
||||
int i;
|
||||
uint64_t i;
|
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|
||||
pid = vfork();
|
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if (pid < 0)
|
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@ -372,6 +488,8 @@ test_vfork_exec(int num)
|
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err(-1, "test_vfork_exec: waitpid");
|
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benchmark_start();
|
||||
for (i = 0; i < num; i++) {
|
||||
if (alarm_fired)
|
||||
break;
|
||||
pid = vfork();
|
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if (pid < 0)
|
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err(-1, "test_vfork_exec: vfork");
|
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@ -383,43 +501,52 @@ test_vfork_exec(int num)
|
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err(-1, "test_vfork_exec: waitpid");
|
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}
|
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benchmark_stop();
|
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return (i);
|
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}
|
||||
|
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void
|
||||
test_chroot(int num)
|
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uint64_t
|
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test_chroot(uint64_t num, uint64_t int_arg, const char *string_arg)
|
||||
{
|
||||
int i;
|
||||
uint64_t i;
|
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|
||||
if (chroot("/") < 0)
|
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err(-1, "test_chroot: chroot");
|
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benchmark_start();
|
||||
for (i = 0; i < num; i++) {
|
||||
if (alarm_fired)
|
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break;
|
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if (chroot("/") < 0)
|
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err(-1, "test_chroot: chroot");
|
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}
|
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benchmark_stop();
|
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return (i);
|
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}
|
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|
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void
|
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test_setuid(int num)
|
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uint64_t
|
||||
test_setuid(uint64_t num, uint64_t int_arg, const char *string_arg)
|
||||
{
|
||||
uid_t uid;
|
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int i;
|
||||
uint64_t i;
|
||||
|
||||
uid = getuid();
|
||||
if (setuid(uid) < 0)
|
||||
err(-1, "test_setuid: setuid");
|
||||
benchmark_start();
|
||||
for (i = 0; i < num; i++) {
|
||||
if (alarm_fired)
|
||||
break;
|
||||
if (setuid(uid) < 0)
|
||||
err(-1, "test_setuid: setuid");
|
||||
}
|
||||
benchmark_stop();
|
||||
return (i);
|
||||
}
|
||||
|
||||
struct test {
|
||||
const char *t_name;
|
||||
void (*t_func)(int);
|
||||
uint64_t (*t_func)(uint64_t, uint64_t, const char *);
|
||||
uint64_t t_int;
|
||||
const char *t_string;
|
||||
};
|
||||
|
||||
static const struct test tests[] = {
|
||||
@ -427,10 +554,26 @@ static const struct test tests[] = {
|
||||
{ "getppid", test_getppid },
|
||||
{ "clock_gettime", test_clock_gettime },
|
||||
{ "pipe", test_pipe },
|
||||
{ "socket_stream", test_socket_stream },
|
||||
{ "socket_dgram", test_socket_dgram },
|
||||
{ "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 },
|
||||
{ "socketpair_dgram", test_socketpair_dgram },
|
||||
{ "socket_tcp", test_socket_stream, .t_int = PF_INET },
|
||||
{ "socket_udp", test_socket_dgram, .t_int = PF_INET },
|
||||
{ "open_close_devnull", test_open_close, .t_string = "/dev/null" },
|
||||
{ "open_close_devzero", test_open_close, .t_string = "/dev/zero" },
|
||||
{ "open_read_close_devzero_1", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 1 },
|
||||
{ "open_read_close_devzero_10", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 10 },
|
||||
{ "open_read_close_devzero_100", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 100 },
|
||||
{ "open_read_close_devzero_1000", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 1000 },
|
||||
{ "open_read_close_devzero_10000", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 10000 },
|
||||
{ "open_read_close_devzero_100000", test_open_read_close,
|
||||
.t_string = "/dev/zero", .t_int = 100000 },
|
||||
{ "dup", test_dup },
|
||||
{ "shmfd", test_shmfd },
|
||||
{ "fstat_shmfd", test_fstat_shmfd },
|
||||
@ -448,7 +591,8 @@ usage(void)
|
||||
{
|
||||
int i;
|
||||
|
||||
fprintf(stderr, "syscall_timing [iterations] [loops] [test]\n");
|
||||
fprintf(stderr, "syscall_timing [-i iterations] [-l loops] "
|
||||
"[-s seconds] test\n");
|
||||
for (i = 0; i < tests_count; i++)
|
||||
fprintf(stderr, " %s\n", tests[i].t_name);
|
||||
exit(-1);
|
||||
@ -461,28 +605,61 @@ main(int argc, char *argv[])
|
||||
const struct test *the_test;
|
||||
long long ll;
|
||||
char *endp;
|
||||
int i, j, k;
|
||||
int iterations, loops;
|
||||
int ch, i, j, k;
|
||||
uint64_t iterations, loops;
|
||||
|
||||
if (argc < 4)
|
||||
usage();
|
||||
alarm_timeout = 0;
|
||||
iterations = 0;
|
||||
loops = 0;
|
||||
while ((ch = getopt(argc, argv, "i:l:s:")) != -1) {
|
||||
switch (ch) {
|
||||
case 'i':
|
||||
ll = strtol(optarg, &endp, 10);
|
||||
if (*endp != 0 || ll < 1 || ll > 100000)
|
||||
usage();
|
||||
iterations = ll;
|
||||
break;
|
||||
|
||||
ll = strtoll(argv[1], &endp, 10);
|
||||
if (*endp != 0 || ll < 0 || ll > 100000)
|
||||
usage();
|
||||
iterations = ll;
|
||||
case 'l':
|
||||
ll = strtol(optarg, &endp, 10);
|
||||
if (*endp != 0 || ll < 1 || ll > 100000)
|
||||
usage();
|
||||
loops = ll;
|
||||
break;
|
||||
|
||||
ll = strtoll(argv[2], &endp, 10);
|
||||
if (*endp != 0 || ll < 0 || ll > 100000)
|
||||
case 's':
|
||||
ll = strtol(optarg, &endp, 10);
|
||||
if (*endp != 0 || ll < 1 || ll > 60*60)
|
||||
usage();
|
||||
alarm_timeout = ll;
|
||||
break;
|
||||
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
argc -= optind;
|
||||
argv += optind;
|
||||
|
||||
if (iterations < 1 && alarm_timeout < 1)
|
||||
usage();
|
||||
if (iterations < 1)
|
||||
iterations = UINT64_MAX;
|
||||
if (loops < 1)
|
||||
loops = 1;
|
||||
|
||||
if (argc != 1)
|
||||
usage();
|
||||
loops = ll;
|
||||
|
||||
assert(clock_getres(CLOCK_REALTIME, &ts_res) == 0);
|
||||
printf("Clock resolution: %ju.%ju\n", (uintmax_t)ts_res.tv_sec,
|
||||
printf("Clock resolution: %ju.%08ju\n", (uintmax_t)ts_res.tv_sec,
|
||||
(uintmax_t)ts_res.tv_nsec);
|
||||
printf("test\tloop\ttotal\titerations\tperiteration\n");
|
||||
|
||||
for (j = 3; j < argc; j++) {
|
||||
for (j = 0; j < argc; j++) {
|
||||
uint64_t calls;
|
||||
|
||||
the_test = NULL;
|
||||
for (i = 0; i < tests_count; i++) {
|
||||
if (strcmp(argv[j], tests[i].t_name) == 0)
|
||||
@ -494,13 +671,15 @@ main(int argc, char *argv[])
|
||||
/*
|
||||
* Run one warmup, then do the real thing (loops) times.
|
||||
*/
|
||||
the_test->t_func(iterations);
|
||||
calls = the_test->t_func(iterations, the_test->t_int,
|
||||
the_test->t_string);
|
||||
for (k = 0; k < loops; k++) {
|
||||
the_test->t_func(iterations);
|
||||
the_test->t_func(iterations, the_test->t_int,
|
||||
the_test->t_string);
|
||||
timespecsub(&ts_end, &ts_start);
|
||||
printf("%s\t%d\t", the_test->t_name, k);
|
||||
printf("%ju.%09ju\t%d\t", (uintmax_t)ts_end.tv_sec,
|
||||
(uintmax_t)ts_end.tv_nsec, iterations);
|
||||
(uintmax_t)ts_end.tv_nsec, calls);
|
||||
|
||||
/*
|
||||
* Note. This assumes that each iteration takes less than
|
||||
@ -508,9 +687,9 @@ main(int argc, char *argv[])
|
||||
* the room in our arithmetic unit. Fine for system calls,
|
||||
* but not for long things.
|
||||
*/
|
||||
ts_end.tv_sec *= 1000000000 / iterations;
|
||||
ts_end.tv_sec *= 1000000000 / calls;
|
||||
printf("0.%09ju\n", (uintmax_t)(ts_end.tv_sec +
|
||||
ts_end.tv_nsec / iterations));
|
||||
ts_end.tv_nsec / calls));
|
||||
}
|
||||
}
|
||||
return (0);
|
||||
|
||||
Loading…
Reference in New Issue
Block a user