MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/29/01 through 10/05/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 23 604
2-4 a.m. 5 5
4-6 a.m. 4 4
6-8 a.m. 9 163
8-10 a.m. 77 983
10-12 a.m. 201 1,637
12-2 p.m. 212 2,697
2-4 p.m. 201 1,216
4-6 p.m. 194 1,506
6-8 p.m. 89 577
8-10 p.m. 54 318
10-12 p.m. 39 219
__________ _____________ _________________
Total: 1,108 9,929
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 11
Davis 0
Irvine 0
Los Angeles 4
Riverside 0
San Diego 8
San Francisco 2
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 481
Other - UC 600
Other-Network UC 2
_____
1,108
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 0
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 0
Searchlight 0
Other - UC 9,888
Other-Network UC 41
_____
9,929
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.4
Standard deviation in seconds 0.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 7:40
Longest session recorded (minutes:seconds) 54:42
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 448.4
Retrievals per search - standard deviation 2951.3
Percent of searches completed with 0 results 54.0%
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 1,108 29.4%
PRESENT 1,882 49.9%
INIT or CLOSE 778 20.6%
OTHER 1 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:
PERSONAL AUTHOR 91 7.2% 64 70.3% 3 40.6 112.1
TITLE WORD 161 12.7% 99 61.5% 9 122.7 419.8
EXACT TITLE 15 1.2% 14 93.3% 15 15.0 0.0
JOURNAL TITLE 38 3.0% 31 81.6% 226 987.6 1475.9
EXACT JOURNAL 35 2.8% 7 20.0% 2,185 7562.8 10158.5
SUBJECT WORD 58 4.6% 38 65.5% 10 14.5 15.2
EXACT SUBJECT 29 2.3% 6 20.7% 12 431.2 919.3
KEYWORD 729 57.5% 377 51.7% 19 737.1 3860.6
DATE 15 1.2% 5 33.3% 29 100.1 127.7
ADDED SINCE 12 0.9% 10 83.3% 40 40.0 31.1
PUB TYPE 1 0.1% 0 0.0% 1 1.0 0.0
SUBFILE 3 0.2% 2 66.7% 3 3.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 3 0.2% 0 0.0% 96 238.3 288.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 78 6.2% 36 46.2% 46 453.4 860.1
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
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 135 12.2% 75 55.6% 31 338.2 742.4
Single 973 87.8% 523 53.8% 19 1059.0 4556.3
PRESENT commands, by type:
MARC 54.4%
OPAC 28.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w