MELVYL SYSTEM TELNET RESPONSE TIME
                 Time period: 04/01/00 through 04/30/00


1.0  OVERALL RESPONSE TIME:
___________________________

  For a total of  2,332,705 commands:*

     25% completed in less than    0.1 seconds.
     50% completed in less than    0.2 seconds.
     75% completed in less than    0.6 seconds.
     90% completed in less than    1.2 seconds.
     95% completed in less than    2.0 seconds.
     99% completed in less than    9.4 seconds.

1.1 BY TIME OF DAY, IN SECONDS:
_______________________________
                                    All commands completed in less than*
                    No.      25%     50%     75%     90%     95%     99%
                    ___      ___     ___     ___     ___     ___     ___
  Prime Time    1,480,006    0.1     0.2     0.5     1.1     1.9     7.9
  (10am-6pm)

  Non-Prime Time  852,699    0.1     0.2     0.6     1.3     2.3    12.3
  (6pm-10am)


  In two hour intervals:
                                    All commands completed in less than*
                    No.      25%     50%     75%     90%     95%     99%
                    ___      ___     ___     ___     ___     ___     ___

    12-2am        48,034     0.1     0.3     1.2     3.2     8.7    39.0
    2-4am         31,691     0.1     0.3     1.6     3.4    11.4    38.5
    4-6am         19,687     0.1     0.2     1.4     3.0    23.0    35.1
    6-8am         31,046     0.0     0.1     0.2     0.7     1.5     4.7
    8-10am       177,175     0.0     0.1     0.3     0.8     1.4     4.6
    10-12am      343,198     0.1     0.2     0.4     1.0     1.6     6.5
    12-2pm       346,678     0.1     0.2     0.4     1.0     1.6     7.1
    2-4pm        411,403     0.1     0.2     0.5     1.2     2.1     8.7
    4-6pm        378,727     0.1     0.3     0.7     1.3     2.1     8.8
    6-8pm        239,603     0.1     0.3     0.6     1.2     1.8     8.8
    8-10pm       192,822     0.1     0.3     0.7     1.2     1.9     9.3
    10-12pm      112,641     0.1     0.2     0.5     1.1     2.9    13.9

* 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           1271720     0.2     0.4     0.9     1.7     3.0    13.6
  DISPLAY        928,467     0.1     0.1     0.2     0.4     0.7     1.7
  BROWSE           3,397     0.0     0.1     1.4     5.2     8.8    25.2
  SELECT             632     0.0     0.0     0.0     0.1     0.1     2.2
  HELP            27,806     0.0     0.0     0.0     0.0     5.0    37.9
  EXPLAIN         24,817     0.0     0.0     0.0     0.0     0.0     0.0
  SET             73,559     0.0     0.0     0.0     0.6     2.1     5.4
  SHOW             6,269     0.0     0.0     0.0     0.0     0.0     0.1
  LOGON          121,062     2.7     6.3    13.0    25.4    42.4   234.5
  LOGOFF          13,833     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              32,999     0.1     0.1     0.2     0.5     0.9     2.5
  CA               2,299     0.1     0.2     0.5     1.2     2.1     5.3
  AU              12,288     0.1     0.1     0.3     0.6     1.2     3.3
  TW              52,141     0.1     0.4     1.2     2.7     4.3    16.1
  SU              18,815     0.1     0.2     0.6     1.6     2.8     6.6
  XCA                 92     0.1     0.1     0.1     0.3     0.8    10.7
  XT              24,900     0.0     0.1     0.1     0.1     0.2     0.5
  XS                 973     0.1     0.1     0.3     0.9     1.6     3.6
  TI->XT           6,060     0.0     0.1     0.1     0.1     0.1     0.3
  TI->TW           5,633     0.1     0.4     1.0     2.2     3.2     7.3
  Catalog Other   11,044     0.0     0.2     0.8     2.3     3.5     7.3
  TEN PA          17,798     0.4     0.7     1.0     3.8    10.2    28.1
  TEN CA              19     0.2     0.3     0.5     0.8     1.4     1.4
  TEN AU               2     0.1     0.2     0.2     0.2     0.2     0.2
  TEN TW              48     0.2     0.3     0.4     0.6     0.9     1.7
  TEN SU           4,135     0.3     0.5     0.7     0.9     1.3     4.3
  TEN XCA              0     0.0     0.0     0.0     0.0     0.0     0.0
  TEN XT               2     0.3     0.5     0.7     0.7     0.7     0.7
  TEN XS              23     0.2     0.4     0.7     0.8     3.0     3.2
  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        6,852     0.2     0.3     0.6     0.9     1.5     5.5
  COMMENT          5,725     0.3     0.5     0.8     1.2     2.0     7.5
  MJO              3,573     0.0     0.1     0.4     1.4     2.9     8.1
  MED PA          27,158     0.0     0.1     0.1     0.2     0.3     1.3
  MED TW           9,925     0.1     0.2     0.4     0.9     1.4     4.9
  MED SW             159     0.1     0.1     0.5     1.1     2.6    18.7
  MED SU           3,441     0.1     0.1     0.8     2.4     4.1    10.4
  MED MSU            249     0.1     0.2     0.7     1.4     2.2     4.5
  MED XS           1,260     0.1     0.1     0.7     1.7     2.8     7.1
  MED MXS          2,346     0.2     0.3     0.7     0.8     1.2     5.6
  MED XT             718     0.1     0.1     0.1     0.2     0.2     0.9
  MED TN              70     0.3     0.5     0.8     1.3     3.2     5.6
  MED XJ           3,146     0.1     0.2     0.6     0.7     0.9     1.6
  MED MTN            104     0.9     2.4     7.2    13.8    18.5    75.0
  MED KW          38,626     0.1     0.3     1.0     2.7     4.3    11.3
  MED DATE         2,497     0.0     0.1     0.4     0.9     1.3     3.5
  MED LANG         1,848     0.0     0.0     0.1     0.6     0.9     1.2
  MED XXS            735     0.2     1.0     3.0     7.1    12.1    72.6
  MED XMXS            79     0.3     0.9     2.9    25.0    39.5    82.6
  MED Other          277     0.0     0.1     0.5     0.7     0.9     2.4
  FINDs, by index, in seconds (continued)

                                    Commands completed in less than:
                    No.      25%     50%     75%     90%     95%     99%
                    ___      ___     ___     ___     ___     ___     ___
  PE              67,561     0.1     0.2     0.5     1.1     1.6     2.8
  XPE             17,109     0.0     0.0     0.1     0.1     0.1     0.3
  PE PA              216     0.0     0.1     0.1     0.2     0.2     0.4
  PE CA              157     0.1     0.2     0.4     0.6     0.7     2.2
  PE XC               23     0.1     0.1     0.1     0.1     5.3    12.4
  PE SU              536     0.1     0.1     0.5     1.3     2.3    13.8
  PE XS               34     0.1     0.1     0.1     0.5     1.2     2.0
  PE SE               61     0.1     0.1     0.1     0.2     0.4     0.6
  PE XSE               5     0.1     0.1     0.2     1.1     1.1     1.1
  PE CODEN             4     0.0     0.1     0.1     0.1     0.1     0.1
  PE ISSN          1,785     0.0     0.0     0.0     0.1     0.1     0.2
  PE LCCN              1     0.0     0.0     0.0     0.0     0.0     0.0
  PE ISBN              8     0.1     0.1     0.1     0.1     0.1     0.1
  PE RN                1     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               13     0.0     0.0     0.1     0.1     0.1     0.1
  PE Other         1,524     0.2     0.3     0.4     0.7     1.1     7.7
  Multi          728,336     0.4     0.6     1.0     1.9     3.4    16.4


  BROWSEs, by index, in seconds
                                    Commands completed in less than:
                    No.      25%     50%     75%     90%     95%     99%
                    ___      ___     ___     ___     ___     ___     ___
  PA                 169     0.2     0.3     1.0     4.0     5.9    11.4
  CA                   8     0.3     0.5     3.3     6.3     6.3     6.3
  SU               1,340     0.5     1.6     4.8     9.5    14.1    79.2
  XCA                  7     0.2     0.4     0.6     0.7     0.7     0.7
  XS                 131     0.2     0.9     4.0     6.7    14.3    23.5
  Other                6     1.1     3.9     5.2     7.3     7.3     7.3
  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                271     0.0     0.0     0.1     0.1     0.2     1.1
  MED PA              41     0.0     0.0     0.0     0.1     0.1     0.2
  MED SU           1,096     0.0     0.0     0.1     0.1     0.1     0.6
  MED XS              72     0.0     0.0     0.1     0.1     0.1     0.2
  MED TN               0     0.0     0.0     0.0     0.0     0.0     0.0
  MED XJ              68     0.0     0.0     0.0     0.0     0.1     0.1
  Multi                0     0.0     0.0     0.0     0.0     0.0     0.0
RTmm/dd  rt       MELVYL SYSTEM TELNET RESPONSE TIME (weekly)