MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS
               Time period: 12/16/00 through 12/22/00



1.0  SUMMARY STATISTICS
_______________________


    Per hour usage:
         Time                    Searches        Records Presented
    _______________         _____________        _________________
    12-2  a.m.                        652                    6,470
     2-4  a.m.                        471                    3,575
     4-6  a.m.                        426                    4,331
     6-8  a.m.                        774                    7,274
     8-10 a.m.                      2,092                   41,212
    10-12 a.m.                      3,695                   83,989
    12-2  p.m.                      3,645                   88,932
     2-4  p.m.                      3,413                   88,076
     4-6  p.m.                      2,730                   52,187
     6-8  p.m.                      1,314                   27,058
     8-10 p.m.                        693                   15,590
    10-12 p.m.                      1,215                   16,753
    __________              _____________        _________________
        Total:                     21,120                  435,447

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                                                           164
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                                                        13,774
Searchlight                                                    1,094
Other - UC                                                       228
Other-Network UC                                               5,860
                                                               _____
                                                              21,120


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                                                           364
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                                                       423,766
Searchlight                                                        0
Other - UC                                                     2,053
Other-Network UC                                               9,264
                                                               _____
                                                             435,447

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                              1.7

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)                    20:10
Average session length (minutes:seconds)                   14:42
Longest session recorded (minutes:seconds)                184:31
Average number of searches completed per session             0.0
Retrievals per search - median                               1.0
Retrievals per search - average                             75.4
Retrievals per search - standard deviation                1205.1
Percent of searches completed with 0 results                41.7%

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

Commands entered, by type, excluding errors:
                                                   Total     Percentage
                                              __________     __________
  SEARCH                                          21,120          18.6%
  PRESENT                                         81,186          71.4%
  INIT or CLOSE                                   11,448          10.1%
  OTHER                                               27           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 TITLE10,216     42.9%   3,719   36.4%       4      183.8   1983.7
  EXACT PE TITLE   5,419     22.7%   1,263   23.3%       2       43.5    951.6
  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    681      2.9%     633   92.9%       3       14.2     26.4
  CORP AUTHOR        980      4.1%     860   87.8%       9       81.2    363.3
  EXACT CORP AUTH     63      0.3%      16   25.4%       7      119.6    341.5
  SUBJECT          1,166      4.9%     753   64.6%      16      382.7   1383.9
  EXACT SUBJECT      116      0.5%      42   36.2%      10      605.8   2149.8
  SERIES              33      0.1%      25   75.8%       9       13.0     12.9
  EXACT SERIES        13      0.1%       5   38.5%      14       51.9     89.3
  CODEN                2      0.0%       2    100%       0        0.0      0.0
  ISBN             1,792      7.5%   1,792    100%       0        0.0      0.0
  LCCN                74      0.3%      69   93.2%       1        1.0      0.0
  ISSN             1,115      4.7%     117   10.5%       1        1.8      1.5
  INDEXED BY           3      0.0%       3    100%       0        0.0      0.0
  DLA ID               1      0.0%       1    100%       0        0.0      0.0
  LOCAL NUM           54      0.2%      54    100%       0        0.0      0.0
  GOV'T DOC NUM        1      0.0%       1    100%       0        0.0      0.0
  REPORT NUM           2      0.0%       2    100%       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               2,051      8.6%     410   20.0%       2       50.7    380.4
  RPE                 32      0.1%      21   65.6%       3       26.2     55.8
  RXPE                 9      0.0%       3   33.3%       4      756.7   1841.7
  Other indexes        3      0.0%       0    0.0%   1,285      890.0    684.2

                                                           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         2,666     12.6%     948   35.6%       2       54.8    386.4
  Single          18,454     87.4%   7,859   42.6%       3      141.5   1691.7



PRESENT commands, by type:
  MARC                                                      27.5%
  OPAC                                                      18.0%
SPEmm/dd srv.pe   MELSRV PERIODICALS DATABASES Z39.50 SERVER STATISTICS (weekly)