MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/25/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 44 50
2-4 a.m. 28 213
4-6 a.m. 23 162
6-8 a.m. 16 58
8-10 a.m. 109 881
10-12 a.m. 264 938
12-2 p.m. 361 888
2-4 p.m. 418 1,661
4-6 p.m. 280 1,179
6-8 p.m. 172 1,520
8-10 p.m. 148 385
10-12 p.m. 149 332
__________ _____________ _________________
Total: 2,012 8,267
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 3
Irvine 0
Los Angeles 4
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 562
Searchlight 1,432
Other - UC 9
Other-Network UC 0
_____
2,012
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 26
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 8,202
Searchlight 1
Other - UC 37
Other-Network UC 0
_____
8,267
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 0.4
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) 0:03
Average session length (minutes:seconds) 3:13
Longest session recorded (minutes:seconds) 83:47
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 171.5
Retrievals per search - standard deviation 1353.0
Percent of searches completed with 0 results 60.6%
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 2,012 38.4%
PRESENT 1,584 30.2%
INIT or CLOSE 1,650 31.4%
OTHER 0 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 54 2.5% 42 77.8% 8 98.9 179.1
TITLE WORD 74 3.4% 47 63.5% 7 163.4 440.7
EXACT TITLE 9 0.4% 8 88.9% 1 1.0 0.0
JOURNAL TITLE 14 0.6% 12 85.7% 7 6.5 7.8
EXACT JOURNAL 39 1.8% 13 33.3% 715 4876.7 8631.7
SUBJECT WORD 61 2.8% 48 78.7% 10 69.2 112.7
EXACT SUBJECT 16 0.7% 2 12.5% 219 800.9 1554.0
KEYWORD 1,778 81.7% 1,078 60.6% 8 286.8 1285.5
DATE 11 0.5% 5 45.5% 41 148.2 215.5
ADDED SINCE 5 0.2% 4 80.0% 1 1.0 0.0
PUB TYPE 6 0.3% 5 83.3% 3 3.0 0.0
SUBFILE 3 0.1% 0 0.0% 1 3.7 4.6
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 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 16 0.7% 8 50.0% 21 119.5 186.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 87 4.0% 38 43.7% 20 745.7 2194.0
Other indexes 1 0.0% 0 0.0% 16 16.0 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 134 6.7% 70 52.2% 16 597.0 1936.1
Single 1,878 93.3% 1,150 61.2% 9 421.6 2147.3
PRESENT commands, by type:
MARC 46.9%
OPAC 31.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w