MELVYL SYSTEM TELNET RESPONSE TIME                             
                 Time period: 09/01/99 through 09/30/99                         
                                                                                
                                                                                
1.0  OVERALL RESPONSE TIME:                                                     
___________________________                                                     
                                                                                
  For a total of  1,943,564 commands:*                                          
                                                                                
     25% completed in less than    0.1 seconds.                                 
     50% completed in less than    0.1 seconds.                                 
     75% completed in less than    0.4 seconds.                                 
     90% completed in less than    0.9 seconds.                                 
     95% completed in less than    1.8 seconds.                                 
     99% completed in less than    7.2 seconds.                                 
                                                                                
1.1 BY TIME OF DAY, IN SECONDS:                                                 
_______________________________                                                 
                                    All commands completed in less than*        
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  Prime Time    1,391,547    0.1     0.2     0.4     1.0     2.0     7.6        
  (10am-6pm)                                                                    
                                                                                
  Non-Prime Time  552,017    0.0     0.1     0.3     0.7     1.5     6.3        
  (6pm-10am)                                                                    
                                                                                
                                                                                
  In two hour intervals:                                                        
                                    All commands completed in less than*        
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
                                                                                
    12-2am        34,797     0.0     0.1     0.3     0.6     1.2     5.1        
    2-4am         22,976     0.0     0.1     0.2     0.5     0.9     3.7        
    4-6am         16,343     0.0     0.1     0.2     0.6     1.0     4.3        
    6-8am         43,944     0.0     0.1     0.3     0.7     1.3     6.4        
    8-10am       201,830     0.1     0.1     0.3     0.9     1.8     7.2        
    10-12am      358,343     0.1     0.2     0.4     1.0     2.0     7.9        
    12-2pm       347,394     0.1     0.2     0.4     1.0     2.0     7.9        
    2-4pm        415,353     0.1     0.2     0.4     1.0     2.0     7.7        
    4-6pm        270,457     0.1     0.1     0.3     0.9     1.8     6.8        
    6-8pm        107,602     0.0     0.1     0.3     0.7     1.5     6.2        
    8-10pm        66,660     0.0     0.1     0.2     0.7     1.4     5.9        
    10-12pm       57,865     0.0     0.1     0.2     0.6     1.3     5.4        
                                                                                
* 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           718,503     0.1     0.2     0.7     2.1     3.8    13.3        
  DISPLAY        1056145     0.1     0.2     0.3     0.6     0.8     1.9        
  BROWSE           4,378     0.0     0.1     0.9     4.2     7.0    17.5        
  SELECT             571     0.0     0.0     0.1     0.1     0.7     3.5        
  HELP            34,503     0.0     0.0     0.0     0.0     7.6    42.8        
  EXPLAIN         32,812     0.0     0.0     0.0     0.0     0.0     0.1        
  SET             92,913     0.0     0.0     0.0     0.3     2.1     5.4        
  SHOW             8,629     0.0     0.0     0.0     0.0     0.0     0.1        
  LOGON          152,852     2.6     6.1    13.2    26.5    44.4   189.6        
  LOGOFF          17,608     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              41,448     0.1     0.1     0.2     0.5     0.9     2.8        
  CA               3,086     0.1     0.2     0.5     1.2     2.1     5.2        
  AU              14,457     0.1     0.1     0.3     0.7     1.3     3.4        
  TW              63,831     0.1     0.4     1.2     2.8     4.6    18.3        
  SU              22,047     0.1     0.2     0.6     1.8     2.9     7.1        
  XCA                150     0.1     0.1     0.1     0.4     1.0     6.5        
  XT              29,556     0.0     0.1     0.1     0.1     0.2     0.5        
  XS                 921     0.1     0.1     0.3     1.0     1.9     4.6        
  TI->XT           7,352     0.0     0.1     0.1     0.1     0.1     0.4        
  TI->TW           8,563     0.1     0.5     1.7     6.8    29.6    93.2        
  Catalog Other   13,329     0.0     0.1     0.8     2.3     3.6     7.2        
  TEN PA          14,638     0.4     0.7     1.1     2.5     5.5    26.5        
  TEN CA              19     0.5     0.7     0.9     1.3     1.3     1.3        
  TEN AU               0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN TW              31     0.4     0.5     0.8     1.0     3.7     4.2        
  TEN SU           3,298     0.3     0.5     0.8     1.2     1.6     4.1        
  TEN XCA              0     0.0     0.0     0.0     0.0     0.0     0.0        
  TEN XT              14     0.6     0.8     1.6     7.4   101.2   101.2        
  TEN XS              11     0.2     0.3     0.7     0.7     7.5     7.5        
  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        7,275     0.2     0.4     0.7     1.1     1.8     8.2        
  COMMENT          6,249     0.4     0.6     0.9     1.5     2.6     7.9        
  MJO              5,127     0.1     0.2     0.6     2.0     4.2    12.3        
  MED PA          41,457     0.1     0.1     0.1     0.3     0.6     2.4        
  MED TW          12,825     0.1     0.3     0.7     1.6     2.5     6.8        
  MED SW             233     0.1     0.3     1.2     3.3     5.1    13.5        
  MED SU           4,797     0.1     0.2     1.3     4.1     6.7    13.5        
  MED MSU            459     0.1     0.2     0.8     2.9     4.0     8.3        
  MED XS           2,198     0.1     0.2     0.9     1.9     3.8    10.5        
  MED MXS          1,894     0.2     0.4     0.7     1.1     2.1    10.1        
  MED XT             908     0.1     0.1     0.1     0.2     0.2     0.9        
  MED TN              65     0.4     0.7     0.8     1.6     2.0    87.6        
  MED XJ           3,124     0.1     0.2     0.5     0.8     1.1     3.0        
  MED MTN             65     1.4     3.1     8.9    25.9    38.8    89.1        
  MED KW          59,580     0.1     0.5     2.1     5.4     8.6    19.4        
  MED DATE         2,870     0.0     0.2     0.5     1.0     1.4     3.6        
  MED LANG         2,571     0.0     0.0     0.1     0.7     0.9     2.0        
  MED XXS          1,115     0.3     1.1     3.7     8.7    13.5    55.4        
  MED XMXS           151     0.2     0.4     2.4     6.4    16.1    72.8        
  MED Other          374     0.0     0.1     0.6     0.7     0.9     3.8        
  FINDs, by index, in seconds (continued)                                       
                                                                                
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  PE              70,416     0.1     0.3     0.8     1.5     2.1     3.7        
  XPE             17,567     0.1     0.1     0.1     0.2     0.2     0.5        
  PE PA              271     0.1     0.1     0.2     0.3     0.4     0.8        
  PE CA              260     0.2     0.4     0.8     1.5     2.1     6.2        
  PE XC               15     0.2     0.3     0.4     1.2     1.3     1.3        
  PE SU              602     0.1     0.2     0.7     2.0     2.8     4.7        
  PE XS               28     0.1     0.2     0.6     1.8     2.7     3.1        
  PE SE               69     0.2     0.2     0.3     0.8     0.9     1.7        
  PE XSE               0     0.0     0.0     0.0     0.0     0.0     0.0        
  PE CODEN             2     0.1     0.1     0.1     0.1     0.1     0.1        
  PE ISSN          2,402     0.0     0.1     0.1     0.1     0.2     0.3        
  PE LCCN              0     0.0     0.0     0.0     0.0     0.0     0.0        
  PE ISBN              7     0.1     0.1     0.1     0.2     0.2     0.2        
  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               23     0.1     0.1     0.2     0.3     1.1     1.5        
  PE Other         1,165     0.2     0.3     0.4     0.7     0.8     1.7        
  Multi           50,902     0.3     0.7     2.1     5.0     8.3    24.7        
                                                                                
                                                                                
  BROWSEs, by index, in seconds                                                 
                                    Commands completed in less than:            
                    No.      25%     50%     75%     90%     95%     99%        
                    ___      ___     ___     ___     ___     ___     ___        
  PA                  94     0.2     0.5     1.2     3.4     6.3    36.6        
  CA                  29     0.5     0.8     1.6     4.5     7.8     9.0        
  SU               1,468     0.5     1.5     4.4     8.5    12.3    33.1        
  XCA                  2     1.6     1.6     1.7     1.7     1.7     1.7        
  XS                 101     0.2     1.0     4.0     7.6    12.2    27.2        
  Other               18     0.5     1.3     2.9     6.1     6.4     6.4        
  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                357     0.0     0.1     0.1     0.2     0.3     0.9        
  MED PA              85     0.0     0.1     0.1     0.1     0.1     0.3        
  MED SU           1,767     0.0     0.1     0.1     0.1     0.2     3.3        
  MED XS             142     0.0     0.0     0.1     0.1     0.2     0.4        
  MED TN               0     0.0     0.0     0.0     0.0     0.0     0.0        
  MED XJ             104     0.0     0.0     0.1     0.1     0.1     0.2        
  Multi                0     0.0     0.0     0.0     0.0     0.0     0.0