MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/06/01 through 01/12/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 28 1,744
2-4 a.m. 10 45
4-6 a.m. 1 11
6-8 a.m. 10 6
8-10 a.m. 65 136
10-12 a.m. 199 1,693
12-2 p.m. 172 1,400
2-4 p.m. 269 3,158
4-6 p.m. 207 3,127
6-8 p.m. 90 224
8-10 p.m. 77 677
10-12 p.m. 27 150
__________ _____________ _________________
Total: 1,155 12,371
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 2
Davis 1
Irvine 1
Los Angeles 16
Riverside 0
San Diego 24
San Francisco 5
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 495
Searchlight 543
Other - UC 48
Other-Network UC 16
_____
1,155
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 100
Los Angeles 218
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 18
Lawrence Livermore 0
Los Alamos 0
MELWEB 9,117
Searchlight 1,599
Other - UC 245
Other-Network UC 1,074
_____
12,371
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 1.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:09
Average session length (minutes:seconds) 6:58
Longest session recorded (minutes:seconds) 57:49
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1326.1
Retrievals per search - standard deviation 15496
Percent of searches completed with 0 results 47.1%
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 1,155 21.0%
PRESENT 3,520 64.1%
INIT or CLOSE 808 14.7%
OTHER 4 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 83 6.4% 62 74.7% 5 112.3 318.3
TITLE WORD 99 7.6% 42 42.4% 24 595.5 1848.1
EXACT TITLE 14 1.1% 12 85.7% 1 1.0 0.0
JOURNAL TITLE 26 2.0% 21 80.8% 2 1433.8 3200.5
EXACT JOURNAL 29 2.2% 7 24.1% 3,036 13399.8 22755.7
SUBJECT WORD 50 3.9% 21 42.0% 14 305.1 860.8
EXACT SUBJECT 21 1.6% 10 47.6% 61 252.2 373.6
KEYWORD 867 66.8% 396 45.7% 27 2509.4 23567.1
DATE 18 1.4% 11 61.1% 5 14.4 17.0
ADDED SINCE 14 1.1% 7 50.0% 14 29.9 53.6
PUB TYPE 5 0.4% 1 20.0% 123 102.8 74.6
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 3 0.2% 0 0.0% 1 1.0 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 2 0.2% 0 0.0% 2,932 2931.5 1996.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 66 5.1% 16 24.2% 2 1175.0 5539.8
Other indexes 1 0.1% 1 100% 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 126 10.9% 54 42.9% 3 887.7 4649.7
Single 1,029 89.1% 490 47.6% 37 2723.1 22548.4
PRESENT commands, by type:
MARC 63.9%
OPAC 23.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w