MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 02/17/01 through 02/23/01



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                      1,255                   17,457
     2-4  a.m.                        708                   11,150
     4-6  a.m.                        584                    5,169
     6-8  a.m.                      1,243                   17,556
     8-10 a.m.                      3,190                   62,180
    10-12 a.m.                      6,704                  127,744
    12-2  p.m.                      7,845                  165,007
     2-4  p.m.                      8,696                  184,984
     4-6  p.m.                      6,125                  122,518
     6-8  p.m.                      3,055                   60,997
     8-10 p.m.                      2,466                   55,807
    10-12 p.m.                      2,114                   35,667
    __________              _____________        _________________
        Total:                     43,985                  866,236

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                                                            57
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                                                        33,318
Searchlight                                                    3,244
Other - UC                                                       447
Other-Network UC                                               6,917
                                                               _____
                                                              43,985


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                                                            56
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                                                       841,716
Searchlight                                                        0
Other - UC                                                     4,141
Other-Network UC                                              20,323
                                                               _____
                                                             866,236

1.3  Response time
__________________

Search response time from receipt of search request
DLA until transmission of search response:
  Average in seconds                                         0.3
  Standard deviation in seconds                              2.2

Present response time from receipt of present request
DLA until transmission of a present response:
  Average in seconds                                         0.1
  Standard deviation in seconds                              0.5


2.0  PERIODICALS Database Detailed Statistics
_________________________________________

Median session length (minutes:seconds)                    20:26
Average session length (minutes:seconds)                   16:34
Longest session recorded (minutes:seconds)                191:58
Average number of searches completed per session           43985
Retrievals per search - median                               1.0
Retrievals per search - average                             92.9
Retrievals per search - standard deviation                1266.1
Percent of searches completed with 0 results                39.5%

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                                          43,985          19.5%
  PRESENT                                        159,513          70.6%
  INIT or CLOSE                                   22,110           9.8%
  OTHER                                              323           0.1%
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 TITLE21,537     40.6%   7,775   36.1%       5      206.8   1970.9
  EXACT PE TITLE  10,810     20.4%   2,491   23.0%       2       56.1   1183.9
  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  1,238      2.3%   1,117   90.2%       2        9.1     17.6
  CORP AUTHOR      2,031      3.8%   1,677   82.6%       7      153.5   1103.1
  EXACT CORP AUTH    114      0.2%      32   28.1%       7      101.0    288.8
  SUBJECT          5,475     10.3%   3,396   62.0%      12      311.2   1424.4
  EXACT SUBJECT      477      0.9%     156   32.7%       6      227.9   1209.3
  SERIES              84      0.2%      72   85.7%      20       65.9     93.1
  EXACT SERIES        12      0.0%       7   58.3%       5       19.8     28.8
  CODEN               12      0.0%       8   66.7%       1        1.0      0.0
  ISBN             1,648      3.1%   1,645   99.8%       3        3.0      0.0
  LCCN               237      0.4%     225   94.9%       1        1.2      0.4
  ISSN             1,806      3.4%     145    8.0%       1        1.7      2.2
  INDEXED BY           8      0.0%       8    100%       0        0.0      0.0
  DLA ID               0      0.0%       0    0.0%       0        0.0      0.0
  LOCAL NUM          109      0.2%     104   95.4%       1        1.0      0.0
  GOV'T DOC NUM        8      0.0%       8    100%       0        0.0      0.0
  REPORT NUM          15      0.0%      15    100%       0        0.0      0.0
  STOCK NUM            3      0.0%       3    100%       0        0.0      0.0
  GPO ITEM NUM         2      0.0%       2    100%       0        0.0      0.0
  AT               7,188     13.6%   1,959   27.3%       2       44.4    352.8
  RPE                136      0.3%      93   68.4%       5       88.3    193.7
  RXPE                31      0.1%      20   64.5%       5       25.5     49.1
  Other indexes       26      0.0%      19   73.1%     483     1027.9   1146.4

                                                           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         8,736     19.9%   3,359   38.4%       2       47.4    398.3
  Single          35,249     80.1%  14,018   39.8%       3      180.5   1807.1



PRESENT commands, by type:
  MARC                                                      29.0%
  OPAC                                                      21.7%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)