MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/18/02 through 05/24/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 53 184
2-4 a.m. 32 242
4-6 a.m. 12 33
6-8 a.m. 12 201
8-10 a.m. 86 516
10-12 a.m. 253 1,498
12-2 p.m. 418 1,706
2-4 p.m. 460 2,097
4-6 p.m. 330 2,297
6-8 p.m. 231 1,694
8-10 p.m. 185 943
10-12 p.m. 135 454
__________ _____________ _________________
Total: 2,207 11,865
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 7
Irvine 0
Los Angeles 7
Riverside 0
San Diego 0
San Francisco 1
Santa Barbara 0
Santa Cruz 21
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 720
Searchlight 1,411
Other - UC 27
Other-Network UC 13
_____
2,207
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 9
Irvine 0
Los Angeles 43
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 11,617
Searchlight 79
Other - UC 40
Other-Network UC 74
_____
11,865
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 0.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 4:09
Longest session recorded (minutes:seconds) 71:59
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 902.3
Retrievals per search - standard deviation 16534
Percent of searches completed with 0 results 56.8%
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 2,207 35.2%
PRESENT 2,344 37.4%
INIT or CLOSE 1,721 27.4%
OTHER 3 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 105 4.3% 79 75.2% 2 71.5 219.1
TITLE WORD 110 4.5% 61 55.5% 23 604.8 1285.1
EXACT TITLE 9 0.4% 9 100% 0 0.0 0.0
JOURNAL TITLE 37 1.5% 28 75.7% 9 453.6 1103.1
EXACT JOURNAL 74 3.0% 13 17.6% 766 7683.9 12011.1
SUBJECT WORD 87 3.5% 51 58.6% 20 463.1 1827.7
EXACT SUBJECT 16 0.6% 3 18.8% 15 765.5 2289.0
KEYWORD 1,842 74.8% 1,048 56.9% 10 1839.9 27266.5
DATE 40 1.6% 24 60.0% 14 67.4 139.2
ADDED SINCE 5 0.2% 4 80.0% 16 16.0 0.0
PUB TYPE 6 0.2% 3 50.0% 3 8.7 11.6
SUBFILE 4 0.2% 0 0.0% 487 485.8 556.9
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 19 0.8% 5 26.3% 129 337.4 417.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 107 4.3% 27 25.2% 19 1301.1 5837.5
Other indexes 3 0.1% 2 66.7% 4,064 4064.0 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 225 10.2% 87 38.7% 17 827.6 4479.3
Single 1,982 89.8% 1,166 58.8% 11 2300.4 27080.0
PRESENT commands, by type:
MARC 48.4%
OPAC 29.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w