MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/13/02 through 04/19/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 63 106
2-4 a.m. 55 420
4-6 a.m. 12 0
6-8 a.m. 30 164
8-10 a.m. 130 165
10-12 a.m. 213 812
12-2 p.m. 340 1,037
2-4 p.m. 399 1,188
4-6 p.m. 314 2,756
6-8 p.m. 209 2,101
8-10 p.m. 180 2,407
10-12 p.m. 109 454
__________ _____________ _________________
Total: 2,054 11,610
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 7
Irvine 7
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 490
Searchlight 1,453
Other - UC 78
Other-Network UC 14
_____
2,054
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6
Davis 17
Irvine 2
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 10,660
Searchlight 113
Other - UC 757
Other-Network UC 55
_____
11,610
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 0.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:24
Longest session recorded (minutes:seconds) 90:44
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 473.4
Retrievals per search - standard deviation 3836.9
Percent of searches completed with 0 results 59.0%
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 2,054 35.0%
PRESENT 2,099 35.7%
INIT or CLOSE 1,719 29.3%
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 59 2.7% 42 71.2% 6 227.5 825.9
TITLE WORD 138 6.3% 71 51.4% 19 795.3 2525.2
EXACT TITLE 13 0.6% 13 100% 0 0.0 0.0
JOURNAL TITLE 18 0.8% 16 88.9% 1 1.0 0.0
EXACT JOURNAL 56 2.6% 6 10.7% 674 5002.6 10999.1
SUBJECT WORD 64 2.9% 46 71.9% 11 347.8 620.1
EXACT SUBJECT 35 1.6% 13 37.1% 100 975.7 1798.7
KEYWORD 1,710 78.6% 1,036 60.6% 14 949.1 5760.1
DATE 10 0.5% 0 0.0% 50 284.1 512.2
ADDED SINCE 5 0.2% 2 40.0% 6 17.7 24.7
PUB TYPE 3 0.1% 1 33.3% 13 12.5 9.2
SUBFILE 1 0.0% 1 100% 0 0.0 0.0
ID 4 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 10 0.5% 2 20.0% 421 344.8 305.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 49 2.3% 20 40.8% 48 376.0 1027.1
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 111 5.4% 52 46.8% 41 317.8 800.3
Single 1,943 94.6% 1,160 59.7% 17 1218.0 6139.8
PRESENT commands, by type:
MARC 45.0%
OPAC 35.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w