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stress2: Added kqueuex(KQUEUE_CPONFORK) test scenarios
This commit is contained in:
Peter Holm
parent
a4981edede
commit
d7ff2ded47
3 changed files with 515 additions and 0 deletions
176
tools/test/stress2/misc/kevent17.sh
Executable file
176
tools/test/stress2/misc/kevent17.sh
Executable file
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@ -0,0 +1,176 @@
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#!/bin/sh
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#
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# Copyright (c) 2025 Peter Holm <pho@FreeBSD.org>
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# A kqueuex(KQUEUE_CPONFORK) test scenario
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# Test scenario suggestion by: kib
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. ../default.cfg
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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dir=/tmp
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odir=`pwd`
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prog=$(basename "$0" .sh)
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cd $dir
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sed '1,/^EOF/d' < $odir/$0 > $dir/$prog.c
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mycc -o $prog -Wall -Wextra -O0 -g $prog.c || exit 1
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rm -f $prog.c
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cd $odir
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set -e
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mount | grep "on $mntpoint " | grep -q /dev/md && umount -f $mntpoint
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[ -c /dev/md$mdstart ] && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart
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newfs $newfs_flags md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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set +e
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(cd $odir/../testcases/swap; ./swap -t 5m -i 20 -h -l 100 > /dev/null) &
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cd $mntpoint
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$dir/$prog
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s=$?
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[ -f $prog.core -a $s -eq 0 ] &&
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{ ls -l $prog.core; mv $prog.core /tmp; s=1; }
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cd $odir
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while pkill -9 swap; do :; done
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wait
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for i in `jot 6`; do
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mount | grep -q "on $mntpoint " || break
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umount $mntpoint && break || sleep 10
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done
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[ $i -eq 6 ] && exit 1
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mdconfig -d -u $mdstart
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rm -rf $dir/$prog
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exit $s
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EOF
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#include <sys/param.h>
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#include <sys/event.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/wait.h>
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#include <machine/atomic.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.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 <time.h>
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#include <unistd.h>
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static volatile u_int *share;
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static int loops;
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static char *file = "file";
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#define MAXLOOPS 100
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#define PARALLEL 1
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#define RUNTIME (2 * 60)
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#define SYNC 0
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static void
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test(void)
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{
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pid_t pid;
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struct kevent ev[2];
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struct timespec ts;
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int kq, fd, n;
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if ((fd = open(file, O_RDONLY, 0)) == -1)
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err(1, "open(%s). %s:%d", file, __func__, __LINE__);
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atomic_add_int(&share[SYNC], 1);
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while (share[SYNC] != PARALLEL)
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usleep(10000);
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if ((kq = kqueuex(KQUEUE_CPONFORK)) < 0)
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err(1, "kqueuex");
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ts.tv_sec = 5;
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ts.tv_nsec = 0;
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n = 0;
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EV_SET(&ev[n], fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
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NOTE_DELETE, 0, 0);
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n++;
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if (kevent(kq, ev, n, NULL, 0, NULL) < 0)
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err(1, "kevent()");
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if (loops >= MAXLOOPS) { /* start using fork(2) */
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if ((pid = fork()) == 0) {
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n = kevent(kq, NULL, 0, ev, 1, &ts);
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if (n == -1)
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err(1, "kevent() in fork\n");
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close(fd);
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close(kq);
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_exit(0);
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}
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if (waitpid(pid, NULL, 0) != pid)
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err(1, "waitpid(%d)\n", pid);
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}
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n = kevent(kq, NULL, 0, ev, 1, &ts);
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if (n == -1)
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err(1, "kevent()");
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close(fd);
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close(kq);
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_exit(0);
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}
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int
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main(void)
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{
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pid_t pids[PARALLEL];
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size_t len;
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time_t start;
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int e, fd, i, status;
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e = 0;
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len = PAGE_SIZE;
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loops = 0;
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if ((share = mmap(NULL, len, PROT_READ | PROT_WRITE,
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MAP_ANON | MAP_SHARED, -1, 0)) == MAP_FAILED)
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err(1, "mmap");
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start = time(NULL);
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while ((time(NULL) - start) < RUNTIME && e == 0) {
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loops++;
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if ((fd = open(file, O_CREAT | O_TRUNC | O_RDWR, 0660)) ==
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-1)
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err(1, "open(%s)", file);
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close(fd);
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share[SYNC] = 0;
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for (i = 0; i < PARALLEL; i++) {
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if ((pids[i] = fork()) == 0)
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test();
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if (pids[i] == -1)
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err(1, "fork()");
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}
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while (share[SYNC] != PARALLEL)
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usleep(10000);
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if (unlink(file) == -1)
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err(1, "unlink(%s). %s:%d\n", file,
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__FILE__, __LINE__);
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for (i = 0; i < PARALLEL; i++) {
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if (waitpid(pids[i], &status, 0) == -1)
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err(1, "waitpid(%d)", pids[i]);
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if (status != 0) {
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if (WIFSIGNALED(status))
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fprintf(stderr,
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"pid %d exit signal %d\n",
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pids[i], WTERMSIG(status));
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}
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e += status == 0 ? 0 : 1;
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}
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}
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return (e);
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}
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152
tools/test/stress2/misc/kevent18.sh
Executable file
152
tools/test/stress2/misc/kevent18.sh
Executable file
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#!/bin/sh
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#
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# Copyright (c) 2025 Peter Holm <pho@FreeBSD.org>
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#
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# A kqueuex(KQUEUE_CPONFORK) test scenario
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# Sleeping thread seen in WiP code:
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# https://people.freebsd.org/~pho/stress/log/log0615.txt
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. ../default.cfg
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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ulimit -k 5000 || { echo FAIL; exit 1; }
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odir=`pwd`
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prog=$(basename "$0" .sh)
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cd /tmp
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sed '1,/^EOF/d' < $odir/$0 > $prog.c
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mycc -o $prog -Wall -Wextra -O2 -g $prog.c -lpthread || exit 1
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rm -f $prog.c
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cd $odir
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mount | grep "on $mntpoint " | grep -q md$mdstart && umount -f $mntpoint
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mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart
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newfs $newfs_flags md$mdstart > /dev/null
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mount /dev/md$mdstart $mntpoint
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chmod 777 $mntpoint
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su $testuser -c "(cd $mntpoint; /tmp/$prog)" &
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for i in `jot 99`; do
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sleep 1
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kill -0 $! 2>/dev/null || break
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done
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pkill $prog
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wait
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umount -f $mntpoint
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while mount | grep -q $mntpoint; do
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umount $mntpoint || sleep 1
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done
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mdconfig -d -u $mdstart
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rm -f /tmp/$prog
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exit 0
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EOF
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#include <sys/types.h>
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#include <sys/event.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <pthread.h>
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#include <sched.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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#define PARALLEL 64
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static int fd;
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static char path[80];
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static void *
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spin(void *arg __unused)
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{
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int i;
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for (i= 0;; i++) {
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snprintf(path, sizeof(path), "file.%06d.%d", getpid(), i);
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fd = open(path, O_CREAT | O_TRUNC | O_RDWR, 0622);
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if (fd == -1 && errno == ENOTDIR)
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break;
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if (fd == -1)
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err(1, "open(%s)", path);
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close(fd);
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fd = 0;
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unlink(path);
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}
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fprintf(stderr, "spin loops: %d\n", i + 1);
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return (NULL);
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}
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static void *
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test(void *arg __unused)
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{
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struct kevent ev;
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struct timespec ts;
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pid_t pid;
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int i, kq, n;
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for (i = 0; i < 500000; i++) {
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if ((kq = kqueuex(KQUEUE_CPONFORK)) < 0)
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err(1, "kqueueex(KQUEUE_CPONFORK)");
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n = 0;
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memset(&ev, 0, sizeof(ev));
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EV_SET(&ev, fd, EVFILT_VNODE, EV_ADD | EV_ENABLE | EV_CLEAR,
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NOTE_DELETE|NOTE_RENAME|NOTE_EXTEND, 0, 0);
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n++;
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if ((pid = fork()) == 0) {
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kevent(kq, &ev, n, NULL, 0, NULL);
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_exit(0);
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}
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if (waitpid(pid, NULL, 0) != pid)
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err(1, "waitpid(%d)", pid);
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kevent(kq, &ev, n, NULL, 0, NULL);
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memset(&ev, 0, sizeof(ev));
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ts.tv_sec = 0;
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ts.tv_nsec = 1000000;
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if ((n = kevent(kq, NULL, 0, &ev, 1, &ts)) == -1)
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err(1, "kevent()");
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close(kq);
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}
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return (NULL);
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}
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int
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main(void)
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{
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pthread_t cp[PARALLEL], sp;
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int e, i;
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if ((e = pthread_create(&sp, NULL, spin, NULL)) != 0)
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errc(1, e, "pthread_create");
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for (i = 0; i < PARALLEL; i++) {
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if ((e = pthread_create(&cp[i], NULL, test, NULL)) != 0)
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errc(1, e, "pthread_create");
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}
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for (i = 0; i < PARALLEL; i++)
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pthread_join(cp[i], NULL);
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pthread_join(sp, NULL);
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close(fd);
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return (0);
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}
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187
tools/test/stress2/misc/kevent19.sh
Executable file
187
tools/test/stress2/misc/kevent19.sh
Executable file
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#!/bin/sh
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# A kqueuex(KQUEUE_CPONFORK) test scenario
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set -u
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prog=$(basename "$0" .sh)
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cat > /tmp/$prog.c <<EOF
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/* \$Id: kqfork.c,v 1.4 2025/08/19 19:42:16 kostik Exp kostik $ */
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#include <sys/param.h>
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#include <sys/event.h>
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#include <err.h>
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#include <signal.h>
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#include <stdbool.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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#ifndef KQUEUE_CPONFORK
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#define KQUEUE_CPONFORK 0x2
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#endif
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static pid_t pid_pipe_beat;
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static pid_t pid_controller;
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static void
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sighup_handler(int sig __unused)
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{
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kill(pid_pipe_beat, SIGKILL);
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_exit(1);
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}
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static void
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pipe_beat(int wp)
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{
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static const char a[1] = { 'a' };
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ssize_t s;
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for (;;) {
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sleep(1);
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s = write(wp, a, 1);
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if (s < 0)
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err(1, "pipe write");
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if (s == 0)
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errx(1, "short pipe write");
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}
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}
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static void
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worker(int kq, int rp)
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{
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struct kevent ev[1];
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char a[1];
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ssize_t s;
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int n;
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for (;;) {
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n = kevent(kq, NULL, 0, ev, nitems(ev), NULL);
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if (n == -1) {
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kill(pid_controller, SIGHUP);
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err(1, "kqueue");
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}
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if (n == 0)
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continue; // XXXKIB
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switch (ev[0].filter) {
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case EVFILT_TIMER:
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printf("tick\n");
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break;
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case EVFILT_READ:
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if (ev[0].ident != (uintptr_t)rp) {
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kill(pid_controller, SIGHUP);
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errx(1, "unknown read ident %d\n", (int)ev[0].ident);
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}
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s = read(rp, a, sizeof(a));
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if (s == -1) {
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kill(pid_controller, SIGHUP);
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err(1, "read");
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}
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if (s == 0) {
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kill(pid_controller, SIGHUP);
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errx(1, "EOF");
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}
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printf("%c\n", a[0]);
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break;
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default:
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kill(pid_controller, SIGHUP);
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errx(1, "unknown fiter %d\n", ev[0].filter);
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break;
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}
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}
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}
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static void
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usage(void)
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{
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fprintf(stderr, "Usage: kqfork [fork]\n");
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exit(2);
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}
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int
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main(int argc, char *argv[])
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{
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struct kevent ev[2];
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struct sigaction sa;
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int kq, n, pp[2];
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pid_t pid_worker;
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bool do_fork;
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do_fork = false;
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if (argc != 1 && argc != 2)
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usage();
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if (argc == 2) {
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if (strcmp(argv[1], "fork") != 0)
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usage();
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do_fork = true;
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}
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memset(&sa, 0, sizeof(sa));
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sa.sa_handler = sighup_handler;
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if (sigaction(SIGHUP, &sa, NULL) == -1)
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err(1, "sigaction(SIGHUP)");
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memset(&sa, 0, sizeof(sa));
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sa.sa_flags = SA_NOCLDWAIT | SA_NOCLDSTOP;
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sa.sa_handler = SIG_IGN;
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if (sigaction(SIGCHLD, &sa, NULL) == -1)
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err(1, "sigaction(SIGCHLD)");
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if (pipe(pp) == -1)
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err(1, "pipe");
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pid_pipe_beat = fork();
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if (pid_pipe_beat == -1)
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err(1, "fork");
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if (pid_pipe_beat == 0) {
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close(pp[0]);
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pipe_beat(pp[1]);
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}
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kq = kqueuex(do_fork ? KQUEUE_CPONFORK : 0);
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if (kq == -1)
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err(1, "kqueuex");
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EV_SET(&ev[0], 1, EVFILT_TIMER, EV_ADD, NOTE_SECONDS, 1, NULL);
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EV_SET(&ev[1], pp[0], EVFILT_READ, EV_ADD, 0, 0, NULL);
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n = kevent(kq, ev, nitems(ev), NULL, 0, NULL);
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if (n == -1) {
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kill(pid_pipe_beat, SIGKILL);
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err(1, "kevent reg");
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}
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if (n != 0) {
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kill(pid_pipe_beat, SIGKILL);
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errx(1, "kevent reg %d", n);
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}
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pid_controller = getpid();
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if (do_fork) {
|
||||
pid_worker = fork();
|
||||
if (pid_worker == -1) {
|
||||
kill(pid_pipe_beat, SIGKILL);
|
||||
err(1, "fork");
|
||||
}
|
||||
if (pid_worker == 0) {
|
||||
close(pp[1]);
|
||||
worker(kq, pp[0]);
|
||||
}
|
||||
|
||||
for (;;)
|
||||
pause();
|
||||
} else {
|
||||
worker(kq, pp[0]);
|
||||
}
|
||||
exit(0); // unreachable
|
||||
}
|
||||
EOF
|
||||
cc -o /tmp/$prog -Wall -Wextra -O2 /tmp/$prog.c || exit 1
|
||||
|
||||
echo "--> No fork"
|
||||
timeout 4s /tmp/$prog
|
||||
echo "--> fork"
|
||||
timeout 4s /tmp/$prog fork
|
||||
|
||||
rm -f /tmp/$prog.c $prog
|
||||
exit 0
|
||||
Loading…
Add table
Reference in a new issue