MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 04/27/02 through 05/03/02



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                      2,329                   26,358
     2-4  a.m.                      1,396                   15,200
     4-6  a.m.                      1,175                   11,410
     6-8  a.m.                      2,446                   17,604
     8-10 a.m.                      6,393                   74,045
    10-12 a.m.                     10,162                  168,662
    12-2  p.m.                     11,376                  171,268
     2-4  p.m.                     12,266                  177,173
     4-6  p.m.                      9,140                  144,541
     6-8  p.m.                      5,349                   73,376
     8-10 p.m.                      4,031                   64,781
    10-12 p.m.                      3,201                   59,019
    __________              _____________        _________________
        Total:                     69,264                1,003,437

1.1  SEARCH commands
____________________

Zero results may indicate no access to the database

Number of SEARCH commands issued by location:
Location                                                       Total
________                                                       _____
Berkeley                                                          10
Davis                                                              7
Irvine                                                             0
Los Angeles                                                       10
Riverside                                                          3
San Diego                                                          0
San Francisco                                                      0
Santa Barbara                                                      0
Santa Cruz                                                        10
Lawrence Berkeley                                                  0
Lawrence Livermore                                                 0
Los Alamos                                                         0
MELWEB                                                        52,124
Searchlight                                                    2,406
Other - UC                                                       519
Other-Network UC                                              14,175
                                                               _____
                                                              69,264


1.2  Records Presented
______________________

Zero results may indicate no access to the database

Number of Records Presented by location:

Location                                                       Total
________                                                       _____
Berkeley                                                          60
Davis                                                             10
Irvine                                                             0
Los Angeles                                                       15
Riverside                                                          0
San Diego                                                          0
San Francisco                                                      0
Santa Barbara                                                      0
Santa Cruz                                                         2
Lawrence Berkeley                                                  0
Lawrence Livermore                                                 0
Los Alamos                                                         0
MELWEB                                                       964,350
Searchlight                                                        0
Other - UC                                                     4,618
Other-Network UC                                              34,382
                                                               _____
                                                           1,003,437

1.3  Response time
__________________

Search response time from receipt of search request
DLA until transmission of search response:
  Average in seconds                                         0.1
  Standard deviation in seconds                              1.0

Present response time from receipt of present request
DLA until transmission of a present response:
  Average in seconds                                         0.1
  Standard deviation in seconds                              0.2


2.0  PERIODICALS Database Detailed Statistics
_________________________________________

Median session length (minutes:seconds)                    20:04
Average session length (minutes:seconds)                   16:49
Longest session recorded (minutes:seconds)                163:21
Average number of searches completed per session             0.0
Retrievals per search - median                               1.0
Retrievals per search - average                             50.0
Retrievals per search - standard deviation                1022.7
Percent of searches completed with 0 results                33.8%

Percent of searches entered that are long                    0.0%
Percent of long searches completed
  (includes partial results)                                 100%

Commands entered, by type, excluding errors:
                                                   Total     Percentage
                                              __________     __________
  SEARCH                                          69,264          19.6%
  PRESENT                                        237,781          67.3%
  INIT or CLOSE                                   45,549          12.9%
  OTHER                                              601           0.2%
SEARCHes completed:                                        RETRIEVALS PER NON-
                             TOTAL    ZERO RESULTS        ZERO RESULT SEARCHES
                     _____________  ______________      ______________________
                              % of            % of
                               all         all for                        Std.
                     No.  SEARCHes     No.   Index  Median       Avg.     Dev.
                  ______ _________  ______ _______  ______ __________  _______
  By index:
  PERIODICAL TITLE26,101     33.5%  10,727   41.1%       5      150.6   1963.2
  EXACT PE TITLE  12,292     15.8%   2,476   20.1%       2       35.0    892.8
  RELATED PE TITLE     0      0.0%       0    0.0%       0        0.0      0.0
  EXACT RELATED PE     0      0.0%       0    0.0%       0        0.0      0.0
  PERSONAL AUTHOR  1,875      2.4%   1,419   75.7%      17       17.3     28.9
  CORP AUTHOR      3,450      4.4%   3,095   89.7%       5      147.9    645.2
  EXACT CORP AUTH    116      0.1%      36   31.0%      14      174.0    293.5
  SUBJECT          4,635      6.0%   3,004   64.8%      14      335.2   1310.4
  EXACT SUBJECT      346      0.4%     101   29.2%       8      459.5   2291.9
  SERIES              59      0.1%      50   84.7%       4      150.4    292.9
  EXACT SERIES         7      0.0%       0    0.0%       1       53.4    100.5
  CODEN                9      0.0%       6   66.7%       2       10.7     15.9
  ISBN             3,027      3.9%   3,027    100%       0        0.0      0.0
  LCCN               760      1.0%     735   96.7%       1        1.2      0.5
  ISSN            19,037     24.5%   1,106    5.8%       1        1.7      1.0
  INDEXED BY           3      0.0%       3    100%       0        0.0      0.0
  DLA ID               1      0.0%       0    0.0%       1        1.0      0.0
  LOCAL NUM            8      0.0%       7   87.5%       1        1.0      0.0
  GOV'T DOC NUM        4      0.0%       3   75.0%      53       53.0      0.0
  REPORT NUM           1      0.0%       1    100%       0        0.0      0.0
  STOCK NUM            3      0.0%       3    100%       0        0.0      0.0
  GPO ITEM NUM         2      0.0%       1   50.0%       3        3.0      0.0
  AT               5,954      7.7%   1,505   25.3%       2       31.8    201.6
  RPE                 65      0.1%      44   67.7%       9      944.3   2394.7
  RXPE                20      0.0%      14   70.0%      72       78.5     77.9
  Other indexes       47      0.1%      32   68.1%      35     3115.5   6636.5

                                                           RETRIEVALS PER NON-
                             TOTAL    ZERO RESULTS        ZERO RESULT SEARCHES
                     _____________  ______________      ______________________
                              % of            % of
                               all         all for                        Std.
                     No.  SEARCHes     No.   Index  Median       Avg.     Dev.
                  ______ _________  ______ _______  ______ __________  _______
  By number of indexes:
  Multiple         8,331     12.0%   3,788   45.5%       2       37.5    287.6
  Single          60,933     88.0%  19,626   32.2%       2       79.7   1320.0



PRESENT commands, by type:
  MARC                                                      32.0%
  OPAC                                                      23.7%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)