MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/19/02 through 01/25/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 19 239
2-4 a.m. 16 76
4-6 a.m. 10 113
6-8 a.m. 4 0
8-10 a.m. 43 231
10-12 a.m. 103 775
12-2 p.m. 181 1,421
2-4 p.m. 204 1,573
4-6 p.m. 156 931
6-8 p.m. 101 455
8-10 p.m. 50 606
10-12 p.m. 37 1,181
__________ _____________ _________________
Total: 924 7,601
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 16
Irvine 4
Los Angeles 9
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 1
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 505
Searchlight 343
Other - UC 35
Other-Network UC 9
_____
924
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 4
Irvine 0
Los Angeles 26
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 7,282
Searchlight 195
Other - UC 73
Other-Network UC 21
_____
7,601
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 16.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 9:28
Longest session recorded (minutes:seconds) 70:55
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 859.2
Retrievals per search - standard deviation 7836.1
Percent of searches completed with 0 results 50.9%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 924 29.3%
PRESENT 1,641 52.1%
INIT or CLOSE 582 18.5%
OTHER 2 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:
PERSONAL AUTHOR 97 8.7% 80 82.5% 5 329.5 1076.2
TITLE WORD 100 9.0% 65 65.0% 5 104.9 262.7
EXACT TITLE 6 0.5% 6 100% 0 0.0 0.0
JOURNAL TITLE 21 1.9% 20 95.2% 1 1.0 0.0
EXACT JOURNAL 60 5.4% 9 15.0% 766 4418.0 12063.3
SUBJECT WORD 50 4.5% 36 72.0% 23 250.8 538.1
EXACT SUBJECT 15 1.3% 7 46.7% 60 825.4 1858.9
KEYWORD 625 56.0% 291 46.6% 9 1644.8 12021.7
DATE 17 1.5% 9 52.9% 199 1063.8 2592.6
ADDED SINCE 7 0.6% 5 71.4% 27 27.0 19.8
PUB TYPE 8 0.7% 3 37.5% 9 18.4 22.9
SUBFILE 3 0.3% 2 66.7% 1 1.0 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 14 1.3% 7 50.0% 26 1320.7 2744.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 93 8.3% 33 35.5% 2 218.2 1249.1
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 162 17.5% 78 48.1% 6 281.0 1326.1
Single 762 82.5% 392 51.4% 13 2082.0 12275.3
PRESENT commands, by type:
MARC 47.3%
OPAC 34.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w