MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/09/02 through 03/15/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 38 207
2-4 a.m. 42 331
4-6 a.m. 11 117
6-8 a.m. 17 53
8-10 a.m. 69 200
10-12 a.m. 213 1,921
12-2 p.m. 284 2,405
2-4 p.m. 374 3,435
4-6 p.m. 257 2,178
6-8 p.m. 172 1,010
8-10 p.m. 181 4,115
10-12 p.m. 107 1,164
__________ _____________ _________________
Total: 1,765 17,136
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 0
Los Angeles 12
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 833
Searchlight 791
Other - UC 125
Other-Network UC 0
_____
1,765
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 78
Riverside 0
San Diego 2
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 16,753
Searchlight 0
Other - UC 303
Other-Network UC 0
_____
17,136
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 0.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 7:11
Longest session recorded (minutes:seconds) 91:13
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1247.6
Retrievals per search - standard deviation 9039.4
Percent of searches completed with 0 results 52.5%
Percent of searches entered that are long 0.7%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 1,765 29.0%
PRESENT 3,106 51.0%
INIT or CLOSE 1,216 19.9%
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 78 4.0% 46 59.0% 2 50.8 133.9
TITLE WORD 136 6.9% 77 56.6% 14 554.0 1948.9
EXACT TITLE 15 0.8% 15 100% 0 0.0 0.0
JOURNAL TITLE 36 1.8% 29 80.6% 2 10623.7 18532.7
EXACT JOURNAL 105 5.3% 7 6.7% 1,469 6027.5 9950.5
SUBJECT WORD 116 5.9% 73 62.9% 31 1103.4 5041.9
EXACT SUBJECT 45 2.3% 19 42.2% 22 727.8 1552.6
KEYWORD 1,305 66.2% 704 53.9% 16 2404.9 14490.6
DATE 8 0.4% 3 37.5% 2 22.8 39.7
ADDED SINCE 5 0.3% 5 100% 0 0.0 0.0
PUB TYPE 5 0.3% 3 60.0% 9 9.0 9.9
SUBFILE 1 0.1% 0 0.0% 2 2.0 0.0
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 4 0.2% 2 50.0% 38 38.0 11.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 109 5.5% 54 49.5% 18 1082.3 4986.6
Other indexes 3 0.2% 2 66.7% 2 2.0 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 177 10.0% 100 56.5% 12 887.3 4250.0
Single 1,588 90.0% 826 52.0% 24 2800.0 13538.2
PRESENT commands, by type:
MARC 46.9%
OPAC 33.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w