MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/05/01 through 05/11/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 51 164
2-4 a.m. 28 303
4-6 a.m. 12 291
6-8 a.m. 14 121
8-10 a.m. 85 594
10-12 a.m. 314 2,858
12-2 p.m. 357 4,149
2-4 p.m. 427 5,691
4-6 p.m. 310 2,639
6-8 p.m. 248 8,515
8-10 p.m. 126 1,978
10-12 p.m. 106 1,100
__________ _____________ _________________
Total: 2,078 28,403
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 4
Davis 10
Irvine 17
Los Angeles 11
Riverside 0
San Diego 12
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,078
Searchlight 873
Other - UC 72
Other-Network UC 0
_____
2,078
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 17
Davis 1
Irvine 38
Los Angeles 555
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 27,554
Searchlight 0
Other - UC 238
Other-Network UC 0
_____
28,403
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 2.9
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
_________________________________________
Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 8:10
Longest session recorded (minutes:seconds) 130:10
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 838.2
Retrievals per search - standard deviation 6302.0
Percent of searches completed with 0 results 53.3%
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 2,078 24.8%
PRESENT 4,956 59.3%
INIT or CLOSE 1,326 15.9%
OTHER 2 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 113 4.4% 86 76.1% 4 33.3 98.1
TITLE WORD 177 6.9% 112 63.3% 6 158.8 418.1
EXACT TITLE 16 0.6% 15 93.8% 5 5.0 0.0
JOURNAL TITLE 35 1.4% 27 77.1% 3,709 5287.8 6087.5
EXACT JOURNAL 94 3.7% 13 13.8% 5,424 12604.9 21723.3
SUBJECT WORD 150 5.9% 106 70.7% 12 163.7 530.9
EXACT SUBJECT 61 2.4% 14 22.9% 116 959.0 1966.4
KEYWORD 1,532 60.1% 802 52.3% 15 844.5 6633.3
DATE 71 2.8% 11 15.5% 123 194.5 299.1
ADDED SINCE 12 0.5% 12 100% 0 0.0 0.0
PUB TYPE 16 0.6% 9 56.3% 2 59.6 123.2
SUBFILE 3 0.1% 1 33.3% 305 305.0 264.5
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 42 1.6% 10 23.8% 36 183.7 345.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 229 9.0% 90 39.3% 2 1460.5 7902.7
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 410 19.7% 164 40.0% 18 889.6 5968.9
Single 1,668 80.3% 944 56.6% 20 2103.4 9966.9
PRESENT commands, by type:
MARC 54.8%
OPAC 23.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w