MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/02/00 through 12/08/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 79 324
2-4 a.m. 21 11
4-6 a.m. 10 54
6-8 a.m. 11 58
8-10 a.m. 79 884
10-12 a.m. 285 3,288
12-2 p.m. 267 1,365
2-4 p.m. 399 3,820
4-6 p.m. 295 2,891
6-8 p.m. 153 1,416
8-10 p.m. 158 1,898
10-12 p.m. 106 1,387
__________ _____________ _________________
Total: 1,863 17,396
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 5
Davis 1
Irvine 1
Los Angeles 9
Riverside 0
San Diego 13
San Francisco 1
Santa Barbara 5
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 858
Searchlight 711
Other - UC 250
Other-Network UC 9
_____
1,863
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 18
Davis 2
Irvine 6
Los Angeles 2
Riverside 0
San Diego 7
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 15,497
Searchlight 37
Other - UC 1,763
Other-Network UC 64
_____
17,396
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 2.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 9:03
Longest session recorded (minutes:seconds) 91:46
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 886.0
Retrievals per search - standard deviation 11880
Percent of searches completed with 0 results 54.1%
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 1,863 29.9%
PRESENT 3,199 51.4%
INIT or CLOSE 1,156 18.6%
OTHER 8 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 118 5.5% 84 71.2% 4 174.6 705.4
TITLE WORD 224 10.4% 117 52.2% 8 197.4 805.9
EXACT TITLE 21 1.0% 17 80.9% 1 23.5 45.0
JOURNAL TITLE 47 2.2% 40 85.1% 8 4519.1 7692.7
EXACT JOURNAL 74 3.4% 18 24.3% 2,636 12336.1 15805.2
SUBJECT WORD 205 9.5% 138 67.3% 26 1095.6 3595.1
EXACT SUBJECT 61 2.8% 24 39.3% 36 1242.4 5827.1
KEYWORD 1,207 56.1% 637 52.8% 16 1354.4 20441.6
DATE 21 1.0% 5 23.8% 10 495.5 1330.0
ADDED SINCE 13 0.6% 9 69.2% 2 3.3 3.3
PUB TYPE 15 0.7% 13 86.7% 19 19.0 22.6
SUBFILE 1 0.0% 1 100% 0 0.0 0.0
ID 5 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 15 0.7% 6 40.0% 29 833.7 2208.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 122 5.7% 46 37.7% 27 582.5 1765.0
Other indexes 1 0.0% 0 0.0% 20,342 20342.0 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 240 12.9% 121 50.4% 17 478.3 1569.2
Single 1,623 87.1% 887 54.6% 18 2165.4 18825.6
PRESENT commands, by type:
MARC 51.7%
OPAC 23.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w