MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/16/02 through 02/22/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 32 80
2-4 a.m. 38 428
4-6 a.m. 17 191
6-8 a.m. 7 12
8-10 a.m. 52 261
10-12 a.m. 171 896
12-2 p.m. 221 1,337
2-4 p.m. 293 1,978
4-6 p.m. 211 1,286
6-8 p.m. 146 494
8-10 p.m. 124 776
10-12 p.m. 77 1,309
__________ _____________ _________________
Total: 1,389 9,048
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 13
Davis 10
Irvine 1
Los Angeles 4
Riverside 1
San Diego 7
San Francisco 8
Santa Barbara 2
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 647
Searchlight 635
Other - UC 60
Other-Network UC 1
_____
1,389
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1
Davis 63
Irvine 0
Los Angeles 0
Riverside 0
San Diego 41
San Francisco 7
Santa Barbara 19
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 8,552
Searchlight 48
Other - UC 317
Other-Network UC 0
_____
9,048
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 0.7
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) 0:06
Average session length (minutes:seconds) 7:12
Longest session recorded (minutes:seconds) 74:21
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1569.6
Retrievals per search - standard deviation 16736
Percent of searches completed with 0 results 53.7%
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 1,389 32.6%
PRESENT 1,913 44.9%
INIT or CLOSE 959 22.5%
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 100 6.2% 75 75.0% 3 78.5 237.6
TITLE WORD 109 6.8% 68 62.4% 8 2661.0 11046.2
EXACT TITLE 10 0.6% 10 100% 0 0.0 0.0
JOURNAL TITLE 36 2.2% 22 61.1% 852 15947.4 41513.9
EXACT JOURNAL 68 4.2% 3 4.4% 944 6515.3 11652.3
SUBJECT WORD 84 5.2% 61 72.6% 7 920.0 3470.0
EXACT SUBJECT 13 0.8% 4 30.8% 23 756.8 1541.6
KEYWORD 1,035 64.4% 548 52.9% 14 2872.6 26653.9
DATE 27 1.7% 13 48.1% 138 573.5 923.4
ADDED SINCE 5 0.3% 4 80.0% 13 13.0 0.0
PUB TYPE 2 0.1% 0 0.0% 22 21.5 29.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 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 2 0.1% 0 0.0% 9 8.5 10.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 112 7.0% 50 44.6% 17 1625.3 5938.9
Other indexes 4 0.2% 3 75.0% 104 104.0 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 192 13.8% 101 52.6% 19 1245.1 4943.2
Single 1,197 86.2% 645 53.9% 18 3744.3 26333.6
PRESENT commands, by type:
MARC 51.4%
OPAC 32.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w