webmaster.c

ACE源码

  int cnt,i;

  
  /* DOESN'T ACTUALLY PRINT UNTIL THE FIRST CLIENT REPORTS */
  fprintf(stdout,"Reading results ");
  
  /* 
   * COPY THE FILE DESCRIPTORS TO A TMP LIST,
   * ALLOCATE MEMORY FOR STATS, PAGESTATS IN TEXT FORM
   */
  leftfdset = *fdset;
  stats_as_text = (char *)mymalloc(SIZEOF_STATSTEXT+1);
  page_stats_as_text = (char *)mymalloc(SIZEOF_PAGESTATSTEXT+1);
  
    /* 
    * COPY THE FILE DESCRIPTORS TO A TMP LIST,
    * PLUS A LIST OF REMAINING FDs
    */
    leftfdset = *fdset;
    /* 
     * LOOP UNTIL ALL CLIENTS HAVE REPORTED
     * AND tmpfdset IS EMPTY
     */
#ifndef WIN32    
    while(memcmp(&leftfdset,&zerofdset,sizeof(fd_set)))
    {
	tmpfdset = leftfdset;
	sleep(1);
	returnval = select(FD_SETSIZE,&tmpfdset,NULL,NULL,NULL);
	D_PRINTF( "Call to select returned %d, errno %d\n",
	   		 returnval, errno );
        if(returnval < 0)
        {
            /*
             * ERROR SELECTING. ABORT ALL.
             */
	  D_PRINTF( "select() error %s\n", neterrstr() );
            abort_clients();
            errexit("Error selecting from one of the clients\n");
        }
#else
    /* I don't see why a select is needed at all */
    tmpfdset = leftfdset;
    {
#endif /* WIN32 */
	for(cnt = 0; cnt < totalnumclients; cnt++)
	{
	    /*
	     * SEE WHICH SOCKETS HAVE A INPUT ON THEM PENDING AND
	     * RECEIVE IT.  
	     */

	    /* IS THIS A VALID SOCKET? IS IT READY TO READ? */
	    if(!BADSOCKET(socknum[cnt]) && (FD_ISSET(socknum[cnt],&tmpfdset)))
	    {
		int len;

		/*
		 * GET THE TIMING DATA FROM THIS GUY
		 * THEN REMOVE HIM FROM THE tmpfdset
		 */
		  /* 
		   * READ TIME STATS
		   * DOES READ() RETURN THE CORRECT LENGTH? 
		   */
		  D_PRINTF( "About to read timestats, count %d, errno %d\n",
			cnt, errno );
		  len = SIZEOF_STATSTEXTBASE + number_of_pages*SIZEOF_DOUBLETEXT;
		  returnval = recvdata(socknum[cnt], stats_as_text,
				    len);
		  D_PRINTF( "Read time stats %d\n", returnval );
		  if (returnval != len) /* <= 0) */
		    {
		      D_PRINTF( "Error reading timing stats: %s\n",
			    neterrstr() );
		      fprintf(stderr, "Error reading timing stats: %s\nSocket number %d\n",
			      neterrstr(),socknum[cnt]);
		      abort_clients();
		      errexit(""); 
		    } /* end if */
		  
		  /* convert text to stats */
		  stats_as_text[returnval] = 0;	/* add an end marker */
		  statarray[cnt] = *text_to_stats(stats_as_text);

		fputc('.', stdout); /* PROGRESS MARKER */
		fflush(stdout);

		if(uil_filelist_f) /* READ PAGE STATS */
		{
		  for (i = 0; i < number_of_pages; i++) 
		    {
		      D_PRINTF( "On page_stats[%d][%d]\n", cnt, i );
		      returnval = recvdata(socknum[cnt], page_stats_as_text,
					SIZEOF_PAGESTATSTEXT);
		      D_PRINTF( "Read page stats %d\n", returnval );
		      
		      if (returnval != SIZEOF_PAGESTATSTEXT) /* <= 0) */
			{
			  D_PRINTF( "Error reading page_stats[%d][%d]: %s\n",
			    cnt, i, neterrstr() );
			  fprintf(stderr, "Error reading page_stats[%d][%d]: %s\n",
				  cnt, i, neterrstr()); 
			  abort_clients();
			  errexit("");
			}
		      D_PRINTF( "Page stats: read %d bytes\n", 
			  returnval );
		      
		      page_stats_as_text[returnval] = 0;    /* add an end marker */
		      D_PRINTF("strlen(page_stats_as_text) = %d\n", 
			    strlen(page_stats_as_text));
		      page_stats[cnt][i] = 
			*text_to_page_stats(page_stats_as_text);
		      
		    } /* end for */   
		} /* end if filelist */

		FD_CLR(socknum[cnt],&leftfdset);
		NETCLOSE(socknum[cnt]);
		socknum[cnt] = BADSOCKET_VALUE;
	    } /* end if socknum */
	} /* end for cnt */
    } /* end while memcmp fd */

    /*
     * DONE READING RESULTS FROM CLIENTS
     */

    *endtime = time(NULL);
    timestr = asctime(localtime(endtime));
    fprintf(stdout,"\nAll clients ended at %s\n",timestr);
    fflush(stdout);

    /* FREE MEMORY ALLOCATED FOR CLIENT STATS, PAGESTATS AS TEXT */
    free(stats_as_text);
    free(page_stats_as_text);

}

/*
  Prints out all the results
*/
void PrintResults( page_stats, endtime, timestr, totalnumclients, statarray,
		  page_stats_total)
page_stats_t **page_stats;
time_t endtime;
char *timestr;
int totalnumclients;
stats_t statarray[MAXCLIENTS];
page_stats_t *page_stats_total;
{
  stats_t	masterstat;
  int cnt,i,j;
  double	thruput;
  struct timeval	dtime;

    /*
     * PRINT EVERYTHING OUT
     */
    stats_init(&masterstat);
    for(cnt = 0; cnt < totalnumclients; cnt++)
    {
        if((statarray[cnt].rs.totalconnects > 0) && (dumpall))
        {
            fprintf(stdout,"----------------------------------\n");
            /* fprintf(stdout,"Test for host: %s\n",statarray[cnt].hostname); */
            fprintf(stdout,"Total number of pages retrieved from server: %u\n", 
				statarray[cnt].totalpages);
	    
	    rqstat_fprint(stdout, &(statarray[cnt].rs));

    	    thruput = thruputpersec((double)(statarray[cnt].rs.totalbytes),
			&(statarray[cnt].rs.totalresponsetime));
	
    	    fprintf(stdout, "Thruput average per connection: %.0f bytes/sec\n",
			thruput);
        }
        if(statarray[cnt].rs.totalconnects > 0)
        {
	    D_PRINTF( "Summing stats for %d, with %ld total connections\n",
		cnt, statarray[cnt].rs.totalconnects );
            rqstat_sum(&masterstat.rs, &(statarray[cnt].rs));
        }
	else
	{
	    masterstat.rs.totalerrs += statarray[cnt].rs.totalerrs;
	}
    }

    for (i=0; i < totalnumclients; i++)
    {
	for (j=0; j < number_of_pages; j++)
	{
	    D_PRINTF( "Summing page stats for %d, page %d, with %d connects\n",
	      i, j, statarray[i].page_numbers[j] );

	    if (statarray[i].page_numbers[j] != 0)
	    {
		rqst_stats_t *pst_rs;
		rqst_stats_t *ps_rs;

		pst_rs = &(page_stats_total[j].rs);
		ps_rs =  &(page_stats[i][j].rs);

		rqstat_sum(pst_rs, ps_rs);

		page_stats_total[j].totalpages += page_stats[i][j].totalpages;
		masterstat.totalpages += page_stats[i][j].totalpages;

		/* yes, this is assignment, not sum */
		page_stats_total[j].page_size = page_stats[i][j].page_size;

		page_stats_total[j].page_valid = 1;
	    }
	}
    } 
   
    /* print page statistics */
    if (verbose) {
	for (i = 0; i < number_of_pages; i++)
	{
	    if (page_stats_total[i].page_valid == 1)
	    {
		page_stats_t *pst;

		pst = &(page_stats_total[i]);

		printf ("===============================================================================\n");
		printf ("Page # %d\n\n", i);
		printf ("Total number of times page was hit %u\n",
			    pst->totalpages); 

		rqstat_print(&(pst->rs));

		printf ("Page size %u \n", pst->page_size);
		printf ("===============================================================================\n\n"); 
	    }
	}
    }

    fprintf(stdout,"===============================================================================\n");

    /*
     * Validate run.
     */
    masterstat.total_num_of_files = statarray[0].total_num_of_files;
    for (i=1; i < totalnumclients; i++)
    {
        if ((statarray[i].rs.totalconnects > 0) &&
	    (statarray[i].total_num_of_files != masterstat.total_num_of_files))
	{
	    fprintf(stdout,"**********************************************************************\n");
	    fprintf(stdout,"**** ERROR: number of files in each test configuration is not the same\n");
	    fprintf(stdout,"**** ERROR: Check configuration file %s on each client\n", configfile);
	    fprintf(stdout,"**********************************************************************\n");
	    break;
	}
    }


    /*
     * Print summary statistics
     */
    fprintf(stdout, "WEBSTONE 2.0 results:\n");

    fprintf(stdout, "Total number of clients: \t%d\n", totalnumclients);
    testtime = sumedh_end.tv_sec - sumedh_start.tv_sec;
    fprintf(stdout,"Test time: \t\t\t%d seconds\n", testtime);
    
    fprintf(stdout, "Server connection rate: \t%3.2f connections/sec\n",
            (double)(masterstat.rs.totalconnects)/(testtime));
    
    fprintf(stdout, "Server error rate: \t\t%4.4f err/sec\n",
            (double)(masterstat.rs.totalerrs)/(testtime));
    
    fprintf(stdout, "Server thruput: \t\t%2.2f Mbit/sec\n",
            (double)(8*masterstat.rs.totalbytes)/(testtime*1024*1024));
    
    fprintf(stdout, "Little's Load Factor: \t\t%3.2f \n", 
            (double)(masterstat.rs.totalresponsetime.tv_sec)
            /(testtime));
    avgtime(&masterstat.rs.totalresponsetime,
		      masterstat.rs.totalconnects, &dtime);

    fprintf(stdout, "Average response time: \t\t%4.4f millisec\n",
	(double)1000*(dtime.tv_sec + (double)dtime.tv_usec / 1000000));

    fprintf(stdout, "Error Level:\t\t\t%4.4f %%\n",
	    (double)(100 * masterstat.rs.totalerrs)/(masterstat.rs.totalconnects));

    /* so much for the key metrics */

    thruput = 8 * thruputpersec((double)(masterstat.rs.totalbytes),
			&(masterstat.rs.totalresponsetime));
	
    fprintf(stdout, "Average client thruput: \t%4.4f Mbit/sec\n",
			thruput/(1024*1024));

    fprintf(stdout,"Sum of client response times:\t%u.%u sec\n", 
	    masterstat.rs.totalresponsetime.tv_sec,
	    masterstat.rs.totalresponsetime.tv_usec);

    fprintf(stdout,"Total number of pages read:\t%u\n\n", 
				masterstat.totalpages);
   
    /* Remaining stats are the same as usual */

    rqstat_fprint(stdout, &(masterstat.rs));
    fflush(stdout);

}

#ifdef WIN32
/* close socket library */
void sock_cleanup(void) {

    WSACleanup();
}
#endif /* WIN32 */

void
main(const int argc, char *argv[])
{

    int		sync_sock;
    int		i;
    int		j;
    char	buffer[NCCARGS];
    char 	commandline[NCCARGS];
    char 	*timestr;
    time_t 	starttime;
    time_t	endtime;
    fd_set	fdset;
    /* make the big arrays static to avoid stack overflow */
    static char		clienthostname[MAXCLIENTS][MAXHOSTNAMELEN];
    static stats_t	statarray[MAXCLIENTS];
    page_stats_t **page_stats;
    page_stats_t *page_stats_total;
    struct sockaddr_in 	serveraddr;


#ifdef WIN32
    WSADATA	WSAData;
    COORD	dwSize;

    if ((WSAStartup(MAKEWORD(1,1), &WSAData)) != 0) {
	errexit("Error in WSAStartup()\n");
    }
    atexit(sock_cleanup);

    /* increase size of output window */
    dwSize.X = 80;
    dwSize.Y = 500;
    SetConsoleScreenBufferSize(GetStdHandle(STD_OUTPUT_HANDLE), dwSize);
#endif /* WIN32 */


    /* Initalization of variables. */
    debugfile = stdout;
    memset(buffer, 0, NCCARGS);
    memset(webserver, 0, MAXHOSTNAMELEN);
    memset(configfile, 0, MAXPATHLEN);
    FD_ZERO(&zerofdset);
    FD_ZERO(&fdset);

    for(i = 0; i < MAXCLIENTS; i++)
    {
        socknum[i] = BADSOCKET_VALUE;
        statarray[i].rs.totalconnects = 0;
    }  
    
    signal(SIGINT, sig_int);

    ParseCmdLine( argc, argv);

    sync_sock = SetupSyncSocket( &serveraddr );

    MakeCmdLine( commandline);

    totalnumclients = RexecClients( commandline, clienthostname, &serveraddr);

    /* Initalization of variables. */
    page_stats = 
      (page_stats_t **)
      mymalloc(totalnumclients*sizeof(page_stats_t *));
    for (i=0; i < totalnumclients; i++)
      {
	page_stats[i] = (page_stats_t *)
	  mymalloc(number_of_pages*sizeof(page_stats_t));
      }
    page_stats_total = 
      (page_stats_t *)mymalloc(number_of_pages*sizeof(page_stats_t));

    for (i=0; i < totalnumclients; i++) {
        stats_init(&(statarray[i]));
    }
    for (i=0; i < totalnumclients; i++) {
        for (j=0; j < number_of_pages; j++) {
            page_stats_init(&(page_stats[i][j]));
	}
    }
    for (i=0; i < number_of_pages; i++) {
        page_stats_init(&(page_stats_total[i]));
    }
    
    for(i = 0; i < totalnumclients; i++)
    {
        socknum[i] = BADSOCKET_VALUE;
        statarray[i].rs.totalconnects = 0;
    }    

    GetReady( &fdset, totalnumclients, sync_sock );
    NETCLOSE(sync_sock);       

    /*
     * START ALL OF THE CLIENTS BY SENDING THEM A GO SIGNAL.
     */


    gettimeofday (&sumedh_start, NULL);
    SendGo( totalnumclients, socknum);

    /*
     * WAIT FOR ALL OF THE CLIENTS TO COMPLETE.  WE SHOULD GET A REPLY
     * FOR EACH SOCKET WE HAVE OPEN.  THE REPLY WILL BE THE TIMING
     * INFORMATION WE USE.
     */

    starttime = time(NULL);
    timestr = asctime(localtime(&starttime));
    fprintf(stdout,"All clients started at %s\n",timestr);
    fprintf(stdout,"Waiting for clients completion\n");
    fflush(stdout);

    /* IF THIS IS A TIMED TEST, WE MIGHT AS WELL SNOOZE */
    if (testtime) {
      sleep(testtime * 60);
    }

    GetResults( &fdset, page_stats, &endtime, timestr, totalnumclients,
	       statarray);

    gettimeofday (&sumedh_end, NULL);
    PrintResults( page_stats, endtime, timestr, totalnumclients, statarray,
		 page_stats_total);

    /* free memory */
    for (i = 0; i < totalnumclients; i++)
      {
	free(page_stats[i]);
      }
    free(page_stats);
    free(page_stats_total);

    exit(0);
}

/* Added by Rajesh Shah 5/18/96 */
void
HostEntCpy(struct hostent *dest, struct hostent *src)
{
	
	dest->h_name = (char *)malloc(strlen(src->h_name)+1);
	strcpy(dest->h_name, src->h_name);
	printf("WebMaster name = %s\n", dest->h_name);
	dest->h_aliases = src->h_aliases;
	dest->h_addrtype = src->h_addrtype;
	dest->h_length = src->h_length;
	dest->h_addr_list = src->h_addr_list;
}