MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 04/07/01 through 04/13/01



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                      1,622                   15,504
     2-4  a.m.                        853                    6,460
     4-6  a.m.                        700                    5,856
     6-8  a.m.                      1,414                   14,498
     8-10 a.m.                      3,659                   61,783
    10-12 a.m.                      6,710                  132,638
    12-2  p.m.                      7,221                  156,793
     2-4  p.m.                      7,766                  166,463
     4-6  p.m.                      5,898                  129,488
     6-8  p.m.                      3,602                   55,025
     8-10 p.m.                      2,224                   47,388
    10-12 p.m.                      1,860                   42,380
    __________              _____________        _________________
        Total:                     43,529                  834,276

1.1  SEARCH commands
____________________

Zero results may indicate no access to the database

Number of SEARCH commands issued by location:
Location                                                       Total
________                                                       _____
Berkeley                                                           4
Davis                                                              0
Irvine                                                           119
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                                                        31,975
Searchlight                                                    2,860
Other - UC                                                       563
Other-Network UC                                               8,008
                                                               _____
                                                              43,529


1.2  Records Presented
______________________

Zero results may indicate no access to the database

Number of Records Presented by location:

Location                                                       Total
________                                                       _____
Berkeley                                                          23
Davis                                                              0
Irvine                                                           297
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                                                       813,044
Searchlight                                                        0
Other - UC                                                     4,603
Other-Network UC                                              16,309
                                                               _____
                                                             834,276

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                              2.4

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)                    20:18
Average session length (minutes:seconds)                   16:33
Longest session recorded (minutes:seconds)                194:55
Average number of searches completed per session             0.0
Retrievals per search - median                               1.0
Retrievals per search - average                             81.3
Retrievals per search - standard deviation                1062.9
Percent of searches completed with 0 results                37.9%

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                                          43,529          18.8%
  PRESENT                                        163,876          70.7%
  INIT or CLOSE                                   24,415          10.5%
  OTHER                                               75           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 TITLE20,972     41.9%   7,570   36.1%       5      184.1   1582.9
  EXACT PE TITLE   9,719     19.4%   2,230   22.9%       2       60.4   1215.4
  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  1,202      2.4%   1,119   93.1%       3        7.7     15.4
  CORP AUTHOR      1,674      3.3%   1,372   82.0%       8      113.3    709.9
  EXACT CORP AUTH    108      0.2%      26   24.1%       7      100.8    261.2
  SUBJECT          4,064      8.1%   2,589   63.7%      14      332.5   1497.7
  EXACT SUBJECT      331      0.7%     106   32.0%       7      250.4   1327.9
  SERIES              96      0.2%      84   87.5%       2        5.7      7.5
  EXACT SERIES        16      0.0%       9   56.3%       1       82.1    203.8
  CODEN               61      0.1%      17   27.9%       1        1.4      0.7
  ISBN             2,157      4.3%   2,157    100%       0        0.0      0.0
  LCCN                86      0.2%      79   91.9%       1        1.0      0.0
  ISSN             4,410      8.8%     398    9.0%       1        1.7      1.1
  INDEXED BY           7      0.0%       7    100%       0        0.0      0.0
  DLA ID               1      0.0%       1    100%       0        0.0      0.0
  LOCAL NUM           83      0.2%      74   89.2%       1        6.4      7.9
  GOV'T DOC NUM        7      0.0%       7    100%       0        0.0      0.0
  REPORT NUM           0      0.0%       0    0.0%       0        0.0      0.0
  STOCK NUM            3      0.0%       3    100%       0        0.0      0.0
  GPO ITEM NUM         1      0.0%       1    100%       0        0.0      0.0
  AT               4,986     10.0%   1,279   25.6%       2       44.1    304.9
  RPE                 71      0.1%      57   80.3%      11      680.5   1725.2
  RXPE                19      0.0%      12   63.2%      32      422.9    600.5
  Other indexes       27      0.1%      19   70.4%     400     2524.1   5555.6

                                                           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         6,370     14.6%   2,530   39.7%       2       45.0    305.5
  Single          37,159     85.4%  13,969   37.6%       3      145.2   1447.8



PRESENT commands, by type:
  MARC                                                      29.7%
  OPAC                                                      20.0%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)