1998-03-28 05:44:41 +03:00
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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1999-04-22 01:40:44 +04:00
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* Version 1.1 (the "NPL"); you may not use this file except in
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1998-03-28 05:44:41 +03:00
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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/***********************************************************************
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**
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** Contact: AOF<freier@netscape.com>
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**
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** Name: ranfile.c
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**
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** Description: Test to hammer on various components of NSPR
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** Modification History:
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** 20-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
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** The debug mode will print all of the printfs associated with this test.
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** The regress mode will be the default mode. Since the regress tool limits
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** the output to a one line status:PASS or FAIL,all of the printf statements
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** have been handled with an if (debug_mode) statement.
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** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been updated to
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** recognize the return code from tha main program.
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***********************************************************************/
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/***********************************************************************
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** Includes
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***********************************************************************/
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/* Used to get the command line option */
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#include "plgetopt.h"
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#include "prinit.h"
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#include "prthread.h"
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#include "prlock.h"
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#include "prcvar.h"
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#include "prmem.h"
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#include "prinrval.h"
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#include "prio.h"
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#include <string.h>
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#include <stdio.h>
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static PRIntn debug_mode = 0;
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static PRIntn failed_already=0;
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static PRThreadScope thread_scope = PR_LOCAL_THREAD;
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typedef enum {sg_go, sg_stop, sg_done} Action;
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typedef enum {sg_okay, sg_open, sg_close, sg_delete, sg_write, sg_seek} Problem;
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typedef struct Hammer_s {
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PRLock *ml;
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PRCondVar *cv;
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PRUint32 id;
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PRUint32 limit;
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PRUint32 writes;
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PRThread *thread;
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PRIntervalTime timein;
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Action action;
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Problem problem;
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} Hammer_t;
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1999-02-08 23:28:30 +03:00
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#define DEFAULT_LIMIT 10
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#define DEFAULT_THREADS 2
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#define DEFAULT_LOOPS 1
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1998-03-28 05:44:41 +03:00
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static PRInt32 pageSize = 1024;
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static const char* baseName = "./";
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static const char *programName = "Random File";
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#ifdef XP_MAC
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#include "prlog.h"
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#define printf PR_LogPrint
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extern void SetupMacPrintfLog(char *logFile);
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#endif
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/***********************************************************************
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** PRIVATE FUNCTION: Random
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** DESCRIPTION:
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** Generate a pseudo-random number
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** INPUTS: None
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** OUTPUTS: None
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** RETURN: A pseudo-random unsigned number, 32-bits wide
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** SIDE EFFECTS:
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** Updates random seed (a static)
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** RESTRICTIONS:
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** None
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** MEMORY: NA
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** ALGORITHM:
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** Uses the current interval timer value, promoted to a 64 bit
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** float as a multiplier for a static residue (which begins
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** as an uninitialized variable). The result is bits [16..48)
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** of the product. Seed is then updated with the return value
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** promoted to a float-64.
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***********************************************************************/
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static PRUint32 Random(void)
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{
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PRUint32 rv;
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PRUint64 shift;
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static PRFloat64 seed = 0x58a9382; /* Just make sure it isn't 0! */
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PRFloat64 random = seed * (PRFloat64)PR_IntervalNow();
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LL_USHR(shift, *((PRUint64*)&random), 16);
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LL_L2UI(rv, shift);
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seed = (PRFloat64)rv;
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return rv;
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} /* Random */
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/***********************************************************************
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** PRIVATE FUNCTION: Thread
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** DESCRIPTION:
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** Hammer on the file I/O system
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** INPUTS: A pointer to the thread's private data
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** OUTPUTS: None
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** RETURN: None
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** SIDE EFFECTS:
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** Creates, accesses and deletes a file
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** RESTRICTIONS:
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** (Currently) must have file create permission in "/usr/tmp".
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** MEMORY: NA
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** ALGORITHM:
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** This function is a root of a thread
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** 1) Creates a (hopefully) unique file in /usr/tmp/
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** 2) Writes a zero to a random number of sequential pages
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** 3) Closes the file
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** 4) Reopens the file
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** 5) Seeks to a random page within the file
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** 6) Writes a one byte on that page
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** 7) Repeat steps [5..6] for each page in the file
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** 8) Close and delete the file
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** 9) Repeat steps [1..8] until told to stop
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** 10) Notify complete and return
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***********************************************************************/
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static void PR_CALLBACK Thread(void *arg)
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{
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PRUint32 index;
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char filename[30];
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const char zero = 0;
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PRFileDesc *file = NULL;
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PRStatus rv = PR_SUCCESS;
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Hammer_t *cd = (Hammer_t*)arg;
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(void)sprintf(filename, "%ssg%04ld.dat", baseName, cd->id);
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if (debug_mode) printf("Starting work on %s\n", filename);
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while (PR_TRUE)
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{
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PRUint32 bytes;
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PRUint32 minor = (Random() % cd->limit) + 1;
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PRUint32 random = (Random() % cd->limit) + 1;
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PRUint32 pages = (Random() % cd->limit) + 10;
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while (minor-- > 0)
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{
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cd->problem = sg_okay;
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if (cd->action != sg_go) goto finished;
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cd->problem = sg_open;
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file = PR_Open(filename, PR_RDWR|PR_CREATE_FILE, 0666);
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if (file == NULL) goto finished;
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for (index = 0; index < pages; index++)
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{
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cd->problem = sg_okay;
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if (cd->action != sg_go) goto close;
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cd->problem = sg_seek;
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bytes = PR_Seek(file, pageSize * index, PR_SEEK_SET);
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if (bytes != pageSize * index) goto close;
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cd->problem = sg_write;
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bytes = PR_Write(file, &zero, sizeof(zero));
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if (bytes <= 0) goto close;
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cd->writes += 1;
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}
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cd->problem = sg_close;
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rv = PR_Close(file);
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if (rv != PR_SUCCESS) goto purge;
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cd->problem = sg_okay;
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if (cd->action != sg_go) goto purge;
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cd->problem = sg_open;
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file = PR_Open(filename, PR_RDWR, 0666);
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for (index = 0; index < pages; index++)
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{
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cd->problem = sg_okay;
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if (cd->action != sg_go) goto close;
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cd->problem = sg_seek;
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bytes = PR_Seek(file, pageSize * index, PR_SEEK_SET);
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if (bytes != pageSize * index) goto close;
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cd->problem = sg_write;
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bytes = PR_Write(file, &zero, sizeof(zero));
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if (bytes <= 0) goto close;
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cd->writes += 1;
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random = (random + 511) % pages;
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}
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cd->problem = sg_close;
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rv = PR_Close(file);
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if (rv != PR_SUCCESS) goto purge;
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cd->problem = sg_delete;
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rv = PR_Delete(filename);
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if (rv != PR_SUCCESS) goto finished;
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}
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}
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close:
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(void)PR_Close(file);
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purge:
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(void)PR_Delete(filename);
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finished:
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PR_Lock(cd->ml);
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cd->action = sg_done;
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PR_NotifyCondVar(cd->cv);
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PR_Unlock(cd->ml);
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if (debug_mode) printf("Ending work on %s\n", filename);
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return;
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} /* Thread */
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static Hammer_t hammer[100];
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static PRCondVar *cv;
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/***********************************************************************
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** PRIVATE FUNCTION: main
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** DESCRIPTION:
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** Hammer on the file I/O system
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** INPUTS: The usual argc and argv
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** argv[0] - program name (not used)
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** argv[1] - the number of times to execute the major loop
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** argv[2] - the number of threads to toss into the batch
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** argv[3] - the clipping number applied to randoms
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** default values: loops = 2, threads = 10, limit = 57
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** OUTPUTS: None
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** RETURN: None
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** SIDE EFFECTS:
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** Creates, accesses and deletes lots of files
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** RESTRICTIONS:
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** (Currently) must have file create permission in "/usr/tmp".
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** MEMORY: NA
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** ALGORITHM:
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** 1) Fork a "Thread()"
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** 2) Wait for 'interleave' seconds
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** 3) For [0..'threads') repeat [1..2]
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** 4) Mark all objects to stop
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** 5) Collect the threads, accumulating the results
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** 6) For [0..'loops') repeat [1..5]
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** 7) Print accumulated results and exit
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**
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** Characteristic output (from IRIX)
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** Random File: Using loops = 2, threads = 10, limit = 57
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** Random File: [min [avg] max] writes/sec average
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***********************************************************************/
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int main (int argc, char *argv[])
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{
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PRLock *ml;
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PRUint32 id = 0;
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int active, poll;
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PRIntervalTime interleave;
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PRIntervalTime duration = 0;
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int limit = 0, loops = 0, threads = 0, times;
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PRUint32 writes, writesMin = 0x7fffffff, writesTot = 0, durationTot = 0, writesMax = 0;
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const char *where[] = {"okay", "open", "close", "delete", "write", "seek"};
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/* The command line argument: -d is used to determine if the test is being run
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in debug mode. The regress tool requires only one line output:PASS or FAIL.
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All of the printfs associated with this test has been handled with a if (debug_mode)
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test.
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Usage: test_name -d
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*/
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PLOptStatus os;
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PLOptState *opt = PL_CreateOptState(argc, argv, "Gdl:t:i:");
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) continue;
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switch (opt->option)
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{
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case 'G': /* global threads */
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thread_scope = PR_GLOBAL_THREAD;
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break;
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case 'd': /* debug mode */
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debug_mode = 1;
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break;
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case 'l': /* limiting number */
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1998-04-29 02:43:48 +04:00
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limit = atoi(opt->value);
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1998-03-28 05:44:41 +03:00
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break;
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case 't': /* number of threads */
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threads = atoi(opt->value);
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break;
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case 'i': /* iteration counter */
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loops = atoi(opt->value);
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break;
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default:
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break;
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}
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}
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PL_DestroyOptState(opt);
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/* main test */
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PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
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PR_STDIO_INIT();
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interleave = PR_SecondsToInterval(10);
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#ifdef XP_MAC
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SetupMacPrintfLog("ranfile.log");
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debug_mode = 1;
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#endif
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ml = PR_NewLock();
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cv = PR_NewCondVar(ml);
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1999-02-08 23:28:30 +03:00
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if (loops == 0) loops = DEFAULT_LOOPS;
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if (limit == 0) limit = DEFAULT_LIMIT;
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if (threads == 0) threads = DEFAULT_THREADS;
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1998-03-28 05:44:41 +03:00
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if (debug_mode) printf(
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"%s: Using loops = %d, threads = %d, limit = %d and %s threads\n",
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programName, loops, threads, limit,
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(thread_scope == PR_LOCAL_THREAD) ? "LOCAL" : "GLOBAL");
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for (times = 0; times < loops; ++times)
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{
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if (debug_mode) printf("%s: Setting concurrency level to %d\n", programName, times + 1);
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PR_SetConcurrency(times + 1);
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for (active = 0; active < threads; active++)
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{
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hammer[active].ml = ml;
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hammer[active].cv = cv;
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hammer[active].id = id++;
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hammer[active].writes = 0;
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hammer[active].action = sg_go;
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hammer[active].problem = sg_okay;
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hammer[active].limit = (Random() % limit) + 1;
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hammer[active].timein = PR_IntervalNow();
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hammer[active].thread = PR_CreateThread(
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PR_USER_THREAD, Thread, &hammer[active],
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PR_GetThreadPriority(PR_GetCurrentThread()),
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thread_scope, PR_JOINABLE_THREAD, 0);
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PR_Lock(ml);
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PR_WaitCondVar(cv, interleave); /* start new ones slowly */
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PR_Unlock(ml);
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}
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/*
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* The last thread started has had the opportunity to run for
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* 'interleave' seconds. Now gather them all back in.
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*/
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PR_Lock(ml);
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for (poll = 0; poll < threads; poll++)
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{
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if (hammer[poll].action == sg_go) /* don't overwrite done */
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hammer[poll].action = sg_stop; /* ask him to stop */
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}
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PR_Unlock(ml);
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|
while (active > 0)
|
|
|
|
{
|
|
|
|
for (poll = 0; poll < threads; poll++)
|
|
|
|
{
|
|
|
|
PR_Lock(ml);
|
|
|
|
while (hammer[poll].action < sg_done)
|
|
|
|
PR_WaitCondVar(cv, PR_INTERVAL_NO_TIMEOUT);
|
|
|
|
PR_Unlock(ml);
|
|
|
|
|
|
|
|
active -= 1; /* this is another one down */
|
|
|
|
(void)PR_JoinThread(hammer[poll].thread);
|
|
|
|
hammer[poll].thread = NULL;
|
|
|
|
if (hammer[poll].problem == sg_okay)
|
|
|
|
{
|
|
|
|
duration = PR_IntervalToMilliseconds(
|
|
|
|
PR_IntervalNow() - hammer[poll].timein);
|
|
|
|
writes = hammer[poll].writes * 1000 / duration;
|
|
|
|
if (writes < writesMin)
|
|
|
|
writesMin = writes;
|
|
|
|
if (writes > writesMax)
|
|
|
|
writesMax = writes;
|
|
|
|
writesTot += hammer[poll].writes;
|
|
|
|
durationTot += duration;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
if (debug_mode) printf(
|
|
|
|
"%s: test failed %s after %ld seconds\n",
|
|
|
|
programName, where[hammer[poll].problem], duration);
|
|
|
|
else failed_already=1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (debug_mode) printf(
|
|
|
|
"%s: [%ld [%ld] %ld] writes/sec average\n",
|
|
|
|
programName, writesMin, writesTot * 1000 / durationTot, writesMax);
|
|
|
|
|
|
|
|
PR_DestroyCondVar(cv);
|
|
|
|
PR_DestroyLock(ml);
|
|
|
|
|
|
|
|
if (failed_already)
|
|
|
|
{
|
|
|
|
printf("FAIL\n");
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
printf("PASS\n");
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
} /* main */
|