MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 05/26/01 through 06/01/01



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                      1,395                   21,290
     2-4  a.m.                      1,053                   13,011
     4-6  a.m.                        859                    8,593
     6-8  a.m.                      1,678                   15,977
     8-10 a.m.                      3,380                   59,838
    10-12 a.m.                      6,068                  131,986
    12-2  p.m.                      6,896                  118,978
     2-4  p.m.                      8,072                  148,840
     4-6  p.m.                      5,726                  106,472
     6-8  p.m.                      3,281                   48,612
     8-10 p.m.                      2,745                   49,400
    10-12 p.m.                      2,050                   34,639
    __________              _____________        _________________
        Total:                     43,203                  757,636

1.1  SEARCH commands
____________________

Zero results may indicate no access to the database

Number of SEARCH commands issued by location:
Location                                                       Total
________                                                       _____
Berkeley                                                           2
Davis                                                              0
Irvine                                                            46
Los Angeles                                                        1
Riverside                                                          0
San Diego                                                          0
San Francisco                                                      0
Santa Barbara                                                      0
Santa Cruz                                                         0
Lawrence Berkeley                                                  0
Lawrence Livermore                                                 0
Los Alamos                                                         0
MELWEB                                                        32,400
Searchlight                                                    3,031
Other - UC                                                       133
Other-Network UC                                               7,590
                                                               _____
                                                              43,203


1.2  Records Presented
______________________

Zero results may indicate no access to the database

Number of Records Presented by location:

Location                                                       Total
________                                                       _____
Berkeley                                                          16
Davis                                                              0
Irvine                                                            60
Los Angeles                                                        0
Riverside                                                          0
San Diego                                                          0
San Francisco                                                      0
Santa Barbara                                                      0
Santa Cruz                                                         0
Lawrence Berkeley                                                  0
Lawrence Livermore                                                 0
Los Alamos                                                         0
MELWEB                                                       744,527
Searchlight                                                        0
Other - UC                                                       843
Other-Network UC                                              12,190
                                                               _____
                                                             757,636

1.3  Response time
__________________

Search response time from receipt of search request
DLA until transmission of search response:
  Average in seconds                                         0.2
  Standard deviation in seconds                              1.4

Present response time from receipt of present request
DLA until transmission of a present response:
  Average in seconds                                         0.1
  Standard deviation in seconds                              0.3


2.0  PERIODICALS Database Detailed Statistics
_________________________________________

Median session length (minutes:seconds)                    20:03
Average session length (minutes:seconds)                   15:44
Longest session recorded (minutes:seconds)                259:02
Average number of searches completed per session             0.0
Retrievals per search - median                               1.0
Retrievals per search - average                             82.0
Retrievals per search - standard deviation                 938.1
Percent of searches completed with 0 results                38.4%

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                                          43,203          19.8%
  PRESENT                                        148,516          68.2%
  INIT or CLOSE                                   26,099          12.0%
  OTHER                                               47           0.0%
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 TITLE19,642     39.0%   7,855   40.0%       5      241.2   1710.7
  EXACT PE TITLE   9,372     18.6%   2,094   22.3%       2       19.3    216.4
  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  1,739      3.5%   1,595   91.7%       2       25.7    197.7
  CORP AUTHOR      1,844      3.7%   1,547   83.9%      10       64.6    182.9
  EXACT CORP AUTH     84      0.2%      42   50.0%      10       99.7    202.4
  SUBJECT          4,845      9.6%   3,064   63.2%      12      272.9   1150.0
  EXACT SUBJECT      367      0.7%     118   32.2%       7      154.0   1063.0
  SERIES              28      0.1%      23   82.1%       5       67.2    140.3
  EXACT SERIES        15      0.0%       3   20.0%       6       46.3     97.0
  CODEN               15      0.0%       8   53.3%       1        7.1     15.0
  ISBN             1,415      2.8%   1,415    100%       0        0.0      0.0
  LCCN                22      0.0%      22    100%       0        0.0      0.0
  ISSN             5,631     11.2%     452    8.0%       1        1.6      0.9
  INDEXED BY           3      0.0%       3    100%       0        0.0      0.0
  DLA ID               2      0.0%       2    100%       0        0.0      0.0
  LOCAL NUM            2      0.0%       1   50.0%      51       51.0      0.0
  GOV'T DOC NUM       11      0.0%      11    100%       0        0.0      0.0
  REPORT NUM           1      0.0%       1    100%       0        0.0      0.0
  STOCK NUM            7      0.0%       5   71.4%      26       26.0     35.4
  GPO ITEM NUM         1      0.0%       1    100%       0        0.0      0.0
  AT               5,204     10.3%   1,573   30.2%       3       47.1    374.8
  RPE                 88      0.2%      66   75.0%       5       88.0    188.1
  RXPE                35      0.1%      20   57.1%       2       10.9     15.5
  Other indexes       27      0.1%      23   85.2%      39       39.0     43.9

                                                           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         6,988     16.2%   3,167   45.3%       2       45.8    366.3
  Single          36,215     83.8%  13,428   37.1%       3      147.7   1279.3



PRESENT commands, by type:
  MARC                                                      30.8%
  OPAC                                                      21.3%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)