| /* |
| * Copyright (c) 2004, Bull S.A.. All rights reserved. |
| * Created by: Sebastien Decugis |
| |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of version 2 of the GNU General Public License as |
| * published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it would be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write the Free Software Foundation, Inc., |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| |
| * This file is a scalability test for the pthread_cond_init function. |
| |
| * The steps are: |
| * -> Restrict the memory to 32Mb * SCALABILITY_FACTOR |
| * -> While there is free memory |
| * -> allocate memory for 10 cond vars |
| * -> time = 0 |
| * -> init the 10 cond vars with different attributes |
| * -> output time |
| * -> When memory is full; undo everything: |
| * -> time=0 |
| * -> destroy the 10 cond vars |
| * -> output time |
| * -> free memory |
| */ |
| |
| /********************************************************************************************/ |
| /****************************** standard includes *****************************************/ |
| /********************************************************************************************/ |
| #include <pthread.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <stdarg.h> |
| #include <sys/resource.h> |
| #include <sys/time.h> |
| |
| /********************************************************************************************/ |
| /****************************** Test framework *****************************************/ |
| /********************************************************************************************/ |
| #include "testfrmw.h" |
| #include "testfrmw.c" |
| /* This header is responsible for defining the following macros: |
| * UNRESOLVED(ret, descr); |
| * where descr is a description of the error and ret is an int (error code for example) |
| * FAILED(descr); |
| * where descr is a short text saying why the test has failed. |
| * PASSED(); |
| * No parameter. |
| * |
| * Both three macros shall terminate the calling process. |
| * The testcase shall not terminate in any other maneer. |
| * |
| * The other file defines the functions |
| * void output_init() |
| * void output(char * string, ...) |
| * |
| * Those may be used to output information. |
| */ |
| |
| /********************************************************************************************/ |
| /********************************** Configuration ******************************************/ |
| /********************************************************************************************/ |
| #ifndef SCALABILITY_FACTOR |
| #define SCALABILITY_FACTOR 1 |
| #endif |
| #ifndef VERBOSE |
| #define VERBOSE 1 |
| #endif |
| |
| /********************************************************************************************/ |
| /*********************************** Test case *****************************************/ |
| /********************************************************************************************/ |
| |
| typedef struct _teststruct { |
| pthread_cond_t cnd[10 * SCALABILITY_FACTOR]; |
| pthread_condattr_t ca[4]; |
| pthread_condattr_t *pca[10 * SCALABILITY_FACTOR]; |
| struct _teststruct *prev; |
| } teststruct_t; |
| |
| int main(int argc, char *argv[]) |
| { |
| struct rlimit rl; |
| int ret; |
| int i; |
| teststruct_t *cur, *prev; |
| struct timeval time_zero, time_cour, time_res, time_sav[8]; |
| long sav = 0; |
| |
| long monotonic, pshared; |
| |
| pshared = sysconf(_SC_THREAD_PROCESS_SHARED); |
| monotonic = sysconf(_SC_MONOTONIC_CLOCK); |
| #if VERBOSE > 1 |
| output("Support for process-shared condvars: %li\n", pshared); |
| output("Support for monotonic clock : %li\n", monotonic); |
| #endif |
| |
| /* Limit the process memory to a small value (32Mb for example). */ |
| rl.rlim_max = 1024 * 1024 * 32 * SCALABILITY_FACTOR; |
| rl.rlim_cur = rl.rlim_max; |
| if ((ret = setrlimit(RLIMIT_AS, &rl))) { |
| UNRESOLVED(ret, "Memory limitation failed"); |
| } |
| #if VERBOSE > 1 |
| output(";Memory is now limited to %dMb\n", rl.rlim_max >> 20); |
| #endif |
| |
| prev = NULL; |
| cur = NULL; |
| |
| /* Loop while we have memory left */ |
| while (1) { |
| /* Allocate memory for 10 mutex and related stuff */ |
| cur = malloc(sizeof(teststruct_t)); |
| if (cur == NULL) /* No memory left */ |
| break; |
| |
| /* Link to the previous so we are able to free memory */ |
| cur->prev = prev; |
| prev = cur; |
| |
| /* Initialize the mutex attributes */ |
| /* We will have: |
| * pca[0] = NULL |
| * pca[1] = Default cond attribute |
| * pca[2] = (if supported) pshared cond attribute |
| * pca[3] = (if supported) monotonic clock cond attribute |
| * pca[4] = (if supported) pshared + monotonic |
| * pca[5] = pca[0]... |
| */ |
| for (i = 0; i < 4; i++) { |
| ret = pthread_condattr_init(&(cur->ca[i])); |
| if (ret != 0) { |
| UNRESOLVED(ret, "Cond attribute init failed"); |
| } |
| |
| if ((monotonic > 0) && ((i == 2) || (i == 3))) { |
| ret = |
| pthread_condattr_setclock(&(cur->ca[i]), |
| CLOCK_MONOTONIC); |
| if (ret != 0) { |
| UNRESOLVED(ret, |
| "Set monotonic clock failed"); |
| } |
| } |
| if ((pshared > 0) && ((i == 1) || (i == 3))) { |
| ret = |
| pthread_condattr_setpshared(&(cur->ca[i]), |
| PTHREAD_PROCESS_SHARED); |
| if (ret != 0) { |
| UNRESOLVED(ret, |
| "Set process shared attribute failed"); |
| } |
| } |
| |
| } |
| |
| for (i = 0; i < (10 * SCALABILITY_FACTOR); i++) { |
| cur->pca[i] = (i % 5) ? &(cur->ca[i % 4]) : NULL; |
| } /* The mutex attributes are now initialized */ |
| |
| /* Save the time */ |
| gettimeofday(&time_zero, NULL); |
| |
| /* For each condvar, we will: |
| * - init the condvar |
| * - destroy the condvar |
| * - init the condvar |
| * - destroy the condvar |
| * - init the condvar |
| */ |
| for (i = 0; i < 10 * SCALABILITY_FACTOR; i++) { |
| ret = pthread_cond_init(&(cur->cnd[i]), cur->pca[i]); |
| if (ret) { |
| UNRESOLVED(ret, "Cond 1st init failed"); |
| } |
| ret = pthread_cond_destroy(&(cur->cnd[i])); |
| if (ret) { |
| UNRESOLVED(ret, "Cond 1st destroy failed"); |
| } |
| ret = pthread_cond_init(&(cur->cnd[i]), cur->pca[i]); |
| if (ret) { |
| UNRESOLVED(ret, "Cond 2nd init failed"); |
| } |
| ret = pthread_cond_destroy(&(cur->cnd[i])); |
| if (ret) { |
| UNRESOLVED(ret, "Cond 2nd destroy failed"); |
| } |
| ret = pthread_cond_init(&(cur->cnd[i]), cur->pca[i]); |
| if (ret) { |
| UNRESOLVED(ret, "Cond 3rd init failed"); |
| } |
| } |
| /* Compute the operation duration */ |
| gettimeofday(&time_cour, NULL); |
| time_res.tv_usec = |
| time_cour.tv_usec + 1000000 - time_zero.tv_usec; |
| if (time_res.tv_usec < 1000000) { |
| time_res.tv_sec = |
| time_cour.tv_sec - 1 - time_zero.tv_sec; |
| } else { |
| time_res.tv_sec = time_cour.tv_sec - time_zero.tv_sec; |
| time_res.tv_usec -= 1000000; |
| } |
| |
| if (sav > 3) { |
| time_sav[4].tv_sec = time_sav[5].tv_sec; |
| time_sav[4].tv_usec = time_sav[5].tv_usec; |
| time_sav[5].tv_sec = time_sav[6].tv_sec; |
| time_sav[5].tv_usec = time_sav[6].tv_usec; |
| time_sav[6].tv_sec = time_sav[7].tv_sec; |
| time_sav[6].tv_usec = time_sav[7].tv_usec; |
| time_sav[7].tv_sec = time_res.tv_sec; |
| time_sav[7].tv_usec = time_res.tv_usec; |
| } else { |
| time_sav[sav].tv_sec = time_res.tv_sec; |
| time_sav[sav].tv_usec = time_res.tv_usec; |
| } |
| sav++; |
| } |
| if (errno != ENOMEM) { |
| UNRESOLVED(errno, "Memory not full"); |
| } |
| |
| /* Now we just have to cleanup everything. */ |
| while (prev != NULL) { |
| cur = prev; |
| prev = cur->prev; |
| |
| /* Free the condvar resources in the cur element */ |
| for (i = 0; i < 10 * SCALABILITY_FACTOR; i++) { |
| ret = pthread_cond_destroy(&(cur->cnd[i])); |
| if (ret) { |
| UNRESOLVED(ret, "Cond final destroy failed"); |
| } |
| } |
| /* Free the cond attributes resources in the cur element */ |
| for (i = 0; i < 4; i++) { |
| ret = pthread_condattr_destroy(&(cur->ca[i])); |
| if (ret != 0) { |
| UNRESOLVED(ret, |
| "Cond attribute destroy failed"); |
| } |
| } |
| /* Free the element memory */ |
| free(cur); |
| } |
| #if VERBOSE > 0 |
| if (sav < 8) { |
| output("Not enough iterations to build statistics\n"); |
| } else { |
| output("Duration for the operations:\n"); |
| output(" %8i : %2i.%06i s\n", 0, time_sav[0].tv_sec, |
| time_sav[0].tv_usec); |
| output(" %8i : %2i.%06i s\n", 1, time_sav[1].tv_sec, |
| time_sav[1].tv_usec); |
| output(" %8i : %2i.%06i s\n", 2, time_sav[2].tv_sec, |
| time_sav[2].tv_usec); |
| output(" %8i : %2i.%06i s\n", 3, time_sav[3].tv_sec, |
| time_sav[3].tv_usec); |
| output(" [...]\n"); |
| output(" %8i : %2i.%06i s\n", sav - 3, time_sav[4].tv_sec, |
| time_sav[4].tv_usec); |
| output(" %8i : %2i.%06i s\n", sav - 2, time_sav[5].tv_sec, |
| time_sav[5].tv_usec); |
| output(" %8i : %2i.%06i s\n", sav - 1, time_sav[6].tv_sec, |
| time_sav[6].tv_usec); |
| output(" %8i : %2i.%06i s\n", sav, time_sav[7].tv_sec, |
| time_sav[7].tv_usec); |
| } |
| #endif |
| |
| PASSED; |
| } |
| |
| #else /* WITHOUT_XOPEN */ |
| int main(int argc, char *argv[]) |
| { |
| output_init(); |
| UNRESOLVED(0, "This test requires XSI features"); |
| } |
| #endif |
