MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/06/01 through 10/12/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 41 1,330
2-4 a.m. 5 81
4-6 a.m. 3 994
6-8 a.m. 15 234
8-10 a.m. 81 292
10-12 a.m. 202 1,349
12-2 p.m. 319 2,288
2-4 p.m. 323 2,125
4-6 p.m. 254 843
6-8 p.m. 163 185
8-10 p.m. 97 360
10-12 p.m. 72 559
__________ _____________ _________________
Total: 1,575 10,640
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 6
Irvine 1
Los Angeles 48
Riverside 5
San Diego 5
San Francisco 3
Santa Barbara 3
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 745
Other - UC 754
Other-Network UC 1
_____
1,575
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3
Davis 0
Irvine 221
Los Angeles 4
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 10,403
Other-Network UC 8
_____
10,640
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 0.7
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) 0:09
Average session length (minutes:seconds) 6:04
Longest session recorded (minutes:seconds) 82:20
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 687.7
Retrievals per search - standard deviation 4867.3
Percent of searches completed with 0 results 54.5%
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 1,575 32.9%
PRESENT 2,146 44.8%
INIT or CLOSE 1,071 22.3%
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 123 7.0% 97 78.9% 4 96.2 257.7
TITLE WORD 180 10.2% 119 66.1% 27 1649.3 7253.7
EXACT TITLE 9 0.5% 9 100% 0 0.0 0.0
JOURNAL TITLE 21 1.2% 18 85.7% 26 44.7 55.4
EXACT JOURNAL 49 2.8% 8 16.3% 1,310 7538.1 12202.3
SUBJECT WORD 86 4.9% 58 67.4% 9 2244.9 6294.9
EXACT SUBJECT 30 1.7% 12 40.0% 1,337 6647.8 11066.5
KEYWORD 1,134 64.2% 583 51.4% 12 889.2 6310.3
DATE 30 1.7% 15 50.0% 27 1712.8 4164.6
ADDED SINCE 12 0.7% 4 33.3% 12 42.1 57.7
PUB TYPE 9 0.5% 6 66.7% 8 9.7 2.9
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 2 0.1% 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 8 0.5% 6 75.0% 1,605 1605.0 2110.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 74 4.2% 32 43.2% 17 1962.3 5581.6
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 164 10.4% 95 57.9% 26 1594.5 4776.9
Single 1,411 89.6% 764 54.1% 13 1504.1 7344.2
PRESENT commands, by type:
MARC 47.7%
OPAC 33.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w