MELVYL SYSTEM TELNET RESPONSE TIME                             
                 Time period: 07/01/99 through 07/31/99                         
                                                                                
                                                                                
1.0  OVERALL RESPONSE TIME:                                                     
___________________________                                                     
                                                                                
  For a total of  1,781,155 commands:*                                          
                                                                                
     25% completed in less than    0.0 seconds.                                 
     50% completed in less than    0.1 seconds.                                 
     75% completed in less than    0.3 seconds.                                 
     90% completed in less than    0.7 seconds.                                 
     95% completed in less than    1.5 seconds.                                 
     99% completed in less than    6.3 seconds.                                 
                                                                                
1.1 BY TIME OF DAY, IN SECONDS:                                                 
_______________________________                                                 
                                    All commands completed in less than*        
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  Prime Time    1,270,380    0.0     0.1     0.3     0.8     1.6     6.6        
  (10am-6pm)                                                                    
                                                                                
  Non-Prime Time  510,775    0.0     0.1     0.2     0.6     1.3     5.4        
  (6pm-10am)                                                                    
                                                                                
                                                                                
  In two hour intervals:                                                        
                                    All commands completed in less than*        
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
                                                                                
    12-2am        32,934     0.0     0.1     0.2     0.5     1.0     3.8        
    2-4am         23,335     0.0     0.1     0.2     0.5     1.0     4.1        
    4-6am         16,710     0.0     0.1     0.2     0.6     1.1     4.2        
    6-8am         42,574     0.0     0.1     0.2     0.7     1.3     6.6        
    8-10am       189,693     0.0     0.1     0.3     0.8     1.6     6.6        
    10-12am      337,690     0.0     0.1     0.3     0.8     1.7     6.9        
    12-2pm       317,389     0.0     0.1     0.3     0.8     1.6     6.4        
    2-4pm        363,187     0.0     0.1     0.3     0.8     1.7     6.7        
    4-6pm        252,114     0.0     0.1     0.3     0.7     1.6     6.4        
    6-8pm        104,821     0.0     0.1     0.2     0.5     1.1     4.7        
    8-10pm        53,175     0.0     0.1     0.2     0.5     1.2     5.1        
    10-12pm       47,533     0.0     0.1     0.2     0.5     1.0     4.4        
                                                                                
* Logons and Logoffs not included.                                              
                                                                                
                                                                                
2.0  SPECIFIC RESPONSE TIME:                                                    
____________________________                                                    
                                                                                
  By Type of Command, in seconds                                                
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  FIND           655,832     0.1     0.2     0.6     1.8     3.4    11.3        
  DISPLAY        978,746     0.1     0.1     0.2     0.4     0.7     1.4        
  BROWSE           6,926     0.0     0.0     0.1     0.6     2.5    10.6        
  SELECT             327     0.0     0.0     0.1     0.2     0.6     2.3        
  HELP            28,466     0.0     0.0     0.0     0.0     9.2    43.8        
  EXPLAIN         26,730     0.0     0.0     0.0     0.0     0.0     0.1        
  SET             83,881     0.0     0.0     0.0     0.0     1.5     5.0        
  SHOW             7,471     0.0     0.0     0.0     0.0     0.0     0.1        
  LOGON          134,945     2.6     6.1    13.4    27.1    44.9   204.0        
  LOGOFF          15,581     0.0     0.0     0.0     0.0     0.0     0.0        
  FINDs, by index, in seconds                                                   
                                                                                
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  PA              37,599     0.1     0.1     0.2     0.5     1.0     3.1        
  CA               2,647     0.1     0.2     0.6     1.4     2.3     5.9        
  AU              13,005     0.1     0.1     0.3     0.7     1.3     3.6        
  TW              58,424     0.1     0.4     1.2     2.8     4.5    19.1        
  SU              17,013     0.1     0.2     0.6     1.8     3.1     6.7        
  XCA                 65     0.0     0.1     0.1     0.5     0.8     3.0        
  XT              28,542     0.0     0.1     0.1     0.1     0.2     0.5        
  XS                 897     0.1     0.1     0.4     1.2     2.3     5.3        
  TI->XT           5,844     0.0     0.1     0.1     0.1     0.1     0.4        
  TI->TW           6,267     0.1     0.5     1.5     5.1    19.6    66.0        
  Catalog Other   13,475     0.0     0.1     0.7     2.1     3.4     7.4        
  TEN PA          10,688     0.4     0.6     1.0     2.7     8.1    29.4        
  TEN CA              19     0.3     0.5     0.7     1.8     2.2     2.2        
  TEN AU               0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN TW             102     0.2     0.3     0.5     0.7     1.5     2.6        
  TEN SU           2,451     0.3     0.5     0.8     1.2     1.8     5.1        
  TEN XCA              0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN XT               1     9.1     9.1     9.1     9.1     9.1     9.1        
  TEN XS               5     0.4     0.7     0.8     1.9     1.9     1.9        
  TEN TI->XT           0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN TI->TW           0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN Other        4,695     0.2     0.4     0.7     1.1     1.7     4.9        
  COMMENT          5,080     0.3     0.5     0.8     1.4     2.4     8.2        
  MJO              4,792     0.1     0.2     0.5     1.9     4.0    11.1        
  MED PA          39,791     0.1     0.1     0.1     0.2     0.5     2.0        
  MED TW          12,910     0.1     0.2     0.6     1.4     2.2     6.8        
  MED SW             187     0.1     0.2     0.8     3.1     4.7    10.9        
  MED SU           4,606     0.1     0.2     1.2     3.4     6.1    13.3        
  MED MSU            306     0.1     0.2     1.2     2.6     3.5     5.6        
  MED XS           1,310     0.1     0.2     0.9     2.0     3.6     8.0        
  MED MXS          2,079     0.2     0.3     0.7     1.0     1.9     8.2        
  MED XT             658     0.1     0.1     0.1     0.2     0.4     1.3        
  MED TN              48     0.3     0.4     0.8     1.0     1.2    11.4        
  MED XJ           2,047     0.1     0.2     0.5     0.8     1.0     3.0        
  MED MTN             87     0.8     1.8     4.9    19.8    29.0   213.7        
  MED KW          52,853     0.1     0.4     1.8     4.6     7.5    16.3        
  MED DATE         2,974     0.0     0.1     0.4     1.0     1.4     3.4        
  MED LANG         2,267     0.0     0.0     0.1     0.7     0.8     2.2        
  MED XXS            749     0.3     1.3     4.0     9.4    13.7    63.9        
  MED XMXS           165     0.2     0.9     2.0     5.7    16.7    52.8        
  MED Other          317     0.0     0.1     0.5     0.6     0.8     1.1        
  FINDs, by index, in seconds (continued)                                       
                                                                                
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  PE              66,067     0.1     0.2     0.5     1.0     1.5     2.8        
  XPE             17,139     0.0     0.0     0.1     0.1     0.1     0.4        
  PE PA              303     0.0     0.1     0.1     0.1     0.2     0.4        
  PE CA              281     0.1     0.2     0.4     0.6     0.9     2.1        
  PE XC                6     0.1     0.1     0.1     0.2     0.2     0.2        
  PE SU              421     0.1     0.1     0.4     1.1     1.5     3.2        
  PE XS               31     0.0     0.1     0.2     0.5     1.4     1.6        
  PE SE              102     0.1     0.1     0.1     0.1     0.2     0.3        
  PE XSE               3     0.0     0.1     0.1     0.1     0.1     0.1        
  PE CODEN             0     0.0     0.0     0.0     0.0     0.0     0.0        
  PE ISSN          2,044     0.0     0.0     0.0     0.1     0.1     0.3        
  PE LCCN              9     0.0     0.0     0.0     0.7     0.7     0.7        
  PE ISBN             14     0.0     0.0     0.0     0.1     0.1     0.1        
  PE RN                0     0.0     0.0     0.0     0.0     0.0     0.0        
  PE STOCK             0     0.0     0.0     0.0     0.0     0.0     0.0        
  PE GD               30     0.0     0.0     0.0     0.1     0.2     0.2        
  PE Other         1,126     0.2     0.3     0.4     0.6     0.7     1.2        
  Multi           44,685     0.2     0.6     1.7     4.3     7.1    22.1        
                                                                                
                                                                                
  BROWSEs, by index, in seconds                                                 
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  PA                 120     0.2     0.4     0.8     2.6     6.6    29.9        
  CA                   5     0.8     0.8     2.7     4.3     4.3     4.3        
  SU                 766     0.5     1.5     4.5     8.4    11.7    32.0        
  XCA                  0     0.0     0.0     0.0     0.0     0.0     0.0        
  XS                  60     0.6     1.2     5.5    10.2    16.5    26.0        
  Other                7     0.1     2.8     5.5    13.3    13.3    13.3        
  TEN PA               0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN CA               0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN SU               0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN XCA              0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN XS               0     0.0     0.0     0.0     0.0     0.0     0.0        
  Ten Other            0     0.0     0.0     0.0     0.0     0.0     0.0        
  MJO                365     0.0     0.1     0.1     0.2     0.2     1.0        
  MED PA             106     0.0     0.0     0.0     0.1     0.1     0.1        
  MED SU           5,191     0.0     0.0     0.0     0.1     0.1     0.3        
  MED XS              76     0.0     0.1     0.1     0.1     0.1     1.8        
  MED TN               0     0.0     0.0     0.0     0.0     0.0     0.0        
  MED XJ              68     0.0     0.0     0.1     0.1     0.1     1.4        
  Multi                0     0.0     0.0     0.0     0.0     0.0     0.0