MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 05/12/01 through 05/18/01



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                      2,807                   18,273
     2-4  a.m.                      1,189                   11,826
     4-6  a.m.                      1,277                    4,769
     6-8  a.m.                      1,966                   14,548
     8-10 a.m.                      3,890                   73,026
    10-12 a.m.                      7,535                  140,793
    12-2  p.m.                      8,453                  152,496
     2-4  p.m.                      9,412                  174,212
     4-6  p.m.                      7,245                  123,180
     6-8  p.m.                      5,239                   68,900
     8-10 p.m.                      3,433                   57,063
    10-12 p.m.                      2,930                   33,068
    __________              _____________        _________________
        Total:                     55,376                  872,154

1.1  SEARCH commands
____________________

Zero results may indicate no access to the database

Number of SEARCH commands issued by location:
Location                                                       Total
________                                                       _____
Berkeley                                                           0
Davis                                                              0
Irvine                                                           111
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                                                        38,840
Searchlight                                                    3,419
Other - UC                                                       251
Other-Network UC                                              12,754
                                                               _____
                                                              55,376


1.2  Records Presented
______________________

Zero results may indicate no access to the database

Number of Records Presented by location:

Location                                                       Total
________                                                       _____
Berkeley                                                           0
Davis                                                              0
Irvine                                                           293
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                                                       845,090
Searchlight                                                        0
Other - UC                                                     2,583
Other-Network UC                                              24,187
                                                               _____
                                                             872,154

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                              2.0

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


2.0  PERIODICALS Database Detailed Statistics
_________________________________________

Median session length (minutes:seconds)                    20:07
Average session length (minutes:seconds)                   16:19
Longest session recorded (minutes:seconds)                248:12
Average number of searches completed per session             0.0
Retrievals per search - median                               1.0
Retrievals per search - average                             63.9
Retrievals per search - standard deviation                 865.5
Percent of searches completed with 0 results                37.1%

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                                          55,376          20.7%
  PRESENT                                        181,277          67.7%
  INIT or CLOSE                                   31,066          11.6%
  OTHER                                               71           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 TITLE22,864     35.9%   8,833   38.6%       5      177.9   1301.0
  EXACT PE TITLE  11,612     18.3%   2,656   22.9%       2       43.4   1214.9
  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  1,451      2.3%   1,344   92.6%       2       12.8     34.8
  CORP AUTHOR      2,064      3.2%   1,769   85.7%       6      115.6    659.4
  EXACT CORP AUTH    119      0.2%      39   32.8%       7      117.6    285.6
  SUBJECT          5,579      8.8%   3,529   63.3%      11      220.5   1132.3
  EXACT SUBJECT      430      0.7%     147   34.2%      11      359.5   1747.1
  SERIES              47      0.1%      40   85.1%       4       31.9     47.9
  EXACT SERIES        17      0.0%       9   52.9%       5       58.3    119.0
  CODEN               45      0.1%      16   35.6%       1        1.2      0.4
  ISBN             2,432      3.8%   2,432    100%       0        0.0      0.0
  LCCN               184      0.3%     169   91.8%       1        1.3      0.8
  ISSN             9,947     15.6%     804    8.1%       1        1.6      0.9
  INDEXED BY           4      0.0%       4    100%       0        0.0      0.0
  DLA ID               0      0.0%       0    0.0%       0        0.0      0.0
  LOCAL NUM          165      0.3%     162   98.2%       1       16.0     26.0
  GOV'T DOC NUM        7      0.0%       7    100%       0        0.0      0.0
  REPORT NUM           2      0.0%       2    100%       0        0.0      0.0
  STOCK NUM            1      0.0%       1    100%       0        0.0      0.0
  GPO ITEM NUM         0      0.0%       0    0.0%       0        0.0      0.0
  AT               6,459     10.2%   1,892   29.3%       2       46.6    318.3
  RPE                110      0.2%      81   73.6%       8       51.2    108.8
  RXPE                20      0.0%      13   65.0%      16       61.9     99.9
  Other indexes       46      0.1%      28   60.9%      11     2291.4   5023.3

                                                           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         8,055     14.5%   3,300   41.0%       2       46.0    314.6
  Single          47,321     85.5%  17,224   36.4%       2      110.2   1165.2



PRESENT commands, by type:
  MARC                                                      33.2%
  OPAC                                                      21.5%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)