1#!/bin/sh 2 3# 4# Copyright (c) 2014 EMC Corp. 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28 29# Stress the jumbo mbuf allocation 30# vmstat -z | sed -n '1p;/jumbo/p' 31 32. ../default.cfg 33 34here=`pwd` 35cd /tmp 36sed '1,/^EOF/d' < $here/$0 > jumbo.c 37mycc -o jumbo -Wall -Wextra -O2 jumbo.c || exit 1 38rm -f jumbo.c 39 40log=/tmp/mbuf.log 41nb=80 42host=localhost 43[ $# -eq 1 ] && host=$1 44( 45 for i in `jot $nb 0`; do 46 /tmp/jumbo $((12345 + $i)) & 47 done 48 sleep 30 49 for i in `jot $nb 0`; do 50 /tmp/jumbo $host $((12345 + $i)) & 51 done 52 for i in `jot $nb 0`; do 53 wait 54 done 55) > $log 2>&1 56 57rm -f /tmp/jumbo 58grep -q FAIL $log && { cat $log 1>&2; exit 1; } 59rm -f $log 60exit 0 61EOF 62#include <sys/param.h> 63#include <sys/socket.h> 64#include <sys/wait.h> 65 66#include <netinet/in.h> 67 68#include <err.h> 69#include <errno.h> 70#include <fcntl.h> 71#include <netdb.h> 72#include <signal.h> 73#include <stdio.h> 74#include <stdlib.h> 75#include <string.h> 76#include <unistd.h> 77 78#define MX (1024 * 1024) 79#define RETRIES 5 80#define TIMEOUT 1200 81 82char *host; 83int loops, port, server; 84 85void 86ahandler(int s __unused) 87{ 88 if (server) 89 fprintf(stderr, "FAIL Server timed out after %d loops.\n", 90 loops); 91 else 92 fprintf(stderr, "FAIL Client timed out after %d loops.\n", 93 loops); 94 _exit(0); 95} 96 97static void 98reader(void) { 99 socklen_t len; 100 struct sockaddr_in inetaddr, inetpeer; 101 int *buf, i, n, msgsock, on, tcpsock; 102 103 setproctitle("reader - init"); 104 on = 1; 105 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 106 err(1, "socket(), %s:%d", __FILE__, __LINE__); 107 108 if (setsockopt(tcpsock, 109 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 110 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 111 112 inetaddr.sin_family = AF_INET; 113 inetaddr.sin_addr.s_addr = INADDR_ANY; 114 inetaddr.sin_port = htons(port); 115 inetaddr.sin_len = sizeof(inetaddr); 116 117 signal(SIGALRM, ahandler); 118 alarm(TIMEOUT); 119 if (bind(tcpsock, 120 (struct sockaddr *)&inetaddr, sizeof (inetaddr)) < 0) 121 err(1, "bind(), %s:%d", __FILE__, __LINE__); 122 123 if (listen(tcpsock, 5) < 0) 124 err(1, "listen(), %s:%d", __FILE__, __LINE__); 125 126 len = sizeof(inetpeer); 127 if ((msgsock = accept(tcpsock, 128 (struct sockaddr *)&inetpeer, &len)) < 0) 129 err(1, "accept(), %s:%d", __FILE__, __LINE__); 130 131 if ((buf = malloc(MX)) == NULL) 132 err(1, "malloc(%d), %s:%d", MX, __FILE__, __LINE__); 133 setproctitle("reader"); 134 for (i = sysconf(_SC_PAGESIZE); i < MX; i += 1024) { 135 alarm(TIMEOUT); 136 if ((n = recvfrom(msgsock, buf, i, MSG_WAITALL, NULL, 137 NULL)) < 0) { 138 if (errno == EAGAIN) 139 continue; 140 err(1, "read(), %s:%d", __FILE__, __LINE__); 141 } 142 if (n == 0) 143 break; 144 145 loops++; 146 } 147 close(msgsock); 148 _exit(0); 149} 150 151static void 152writer(void) { 153 struct sockaddr_in inetaddr; 154 struct hostent *hostent; 155 int i, on, r, tcpsock; 156 char *line; 157 158 setproctitle("writer - init"); 159 signal(SIGALRM, ahandler); 160 alarm(TIMEOUT); 161 on = 1; 162 for (i = 0; i < RETRIES; i++) { 163 if ((tcpsock = socket(AF_INET, SOCK_STREAM, 0)) < 0) 164 err(1, "socket(), %s:%d", __FILE__, __LINE__); 165 166 if (setsockopt(tcpsock, 167 SOL_SOCKET, SO_REUSEADDR, (char *)&on, sizeof(on)) < 0) 168 err(1, "setsockopt(), %s:%d", __FILE__, __LINE__); 169 170 if ((hostent = gethostbyname (host)) == NULL) 171 err(1, "gethostbyname(%s)", host); 172 bzero((char *) &inetaddr, sizeof(inetaddr)); 173 memcpy (&inetaddr.sin_addr.s_addr, hostent->h_addr, 174 sizeof (struct in_addr)); 175 176 inetaddr.sin_family = AF_INET; 177 inetaddr.sin_port = htons(port); 178 inetaddr.sin_len = sizeof(inetaddr); 179 180 r = connect(tcpsock, (struct sockaddr *) &inetaddr, 181 sizeof(inetaddr)); 182 if (r == 0) 183 break; 184 sleep(1); 185 close(tcpsock); 186 } 187 if (r < 0) 188 err(1, "connect(%s, %d), %s:%d", host, port, __FILE__, 189 __LINE__); 190 191 setproctitle("writer"); 192 if ((line = malloc(MX)) == NULL) 193 err(1, "malloc(%d), %s:%d", MX, __FILE__, __LINE__); 194 alarm(TIMEOUT); 195 for (i = sysconf(_SC_PAGESIZE); i < MX; i += 1024) { 196 if (write(tcpsock, line, i) < 0) 197 err(1, "socket write(). %s:%d", __FILE__, __LINE__); 198 loops++; 199 } 200 close(tcpsock); 201 202 return; 203} 204 205int 206main(int argc, char **argv) 207{ 208 209 if (argc == 2) { 210 server = 1; 211 port = atoi(argv[1]); 212 reader(); 213 } else if (argc == 3) { 214 host = argv[1]; 215 port = atoi(argv[2]); 216 writer(); 217 } else 218 errx(1, "Usage: %s {<host>} <port number>\n", argv[0]); 219 220 return (0); 221} 222