MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/02/02 through 03/08/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 46 601
2-4 a.m. 35 423
4-6 a.m. 17 136
6-8 a.m. 19 445
8-10 a.m. 135 427
10-12 a.m. 241 1,097
12-2 p.m. 330 1,333
2-4 p.m. 420 1,714
4-6 p.m. 265 873
6-8 p.m. 197 3,388
8-10 p.m. 121 541
10-12 p.m. 100 799
__________ _____________ _________________
Total: 1,926 11,777
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 4
Irvine 0
Los Angeles 5
Riverside 10
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 778
Searchlight 904
Other - UC 218
Other-Network UC 6
_____
1,926
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 2
Irvine 0
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 11,378
Searchlight 28
Other - UC 367
Other-Network UC 2
_____
11,777
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.4
Standard deviation in seconds 1.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 5:52
Longest session recorded (minutes:seconds) 112:35
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1815.0
Retrievals per search - standard deviation 12689
Percent of searches completed with 0 results 49.8%
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 1,926 33.6%
PRESENT 2,368 41.3%
INIT or CLOSE 1,434 25.0%
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 84 3.9% 53 63.1% 1 28.4 68.7
TITLE WORD 114 5.3% 54 47.4% 8 432.6 1416.7
EXACT TITLE 11 0.5% 10 90.9% 1 1.0 0.0
JOURNAL TITLE 33 1.5% 24 72.7% 2 4870.2 14473.0
EXACT JOURNAL 98 4.5% 9 9.2% 1,214 8521.8 12042.8
SUBJECT WORD 80 3.7% 50 62.5% 7 136.3 383.7
EXACT SUBJECT 30 1.4% 12 40.0% 13 756.9 2171.7
KEYWORD 1,527 70.8% 778 50.9% 27 3539.0 19539.7
DATE 17 0.8% 9 52.9% 19 94.5 123.6
ADDED SINCE 6 0.3% 4 66.7% 142 142.0 188.1
PUB TYPE 2 0.1% 1 50.0% 48 48.0 0.0
SUBFILE 2 0.1% 2 100% 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 8 0.4% 5 62.5% 2 7.7 9.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 141 6.5% 55 39.0% 9 1172.0 6582.4
Other indexes 5 0.2% 5 100% 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 204 10.6% 100 49.0% 7 982.6 5994.7
Single 1,722 89.4% 859 49.9% 33 3932.2 18629.4
PRESENT commands, by type:
MARC 49.5%
OPAC 27.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w