MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/09/00 through 12/15/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 20 39
2-4 a.m. 19 99
4-6 a.m. 4 147
6-8 a.m. 16 128
8-10 a.m. 86 534
10-12 a.m. 158 3,035
12-2 p.m. 203 1,216
2-4 p.m. 236 1,878
4-6 p.m. 153 1,486
6-8 p.m. 88 805
8-10 p.m. 62 292
10-12 p.m. 38 241
__________ _____________ _________________
Total: 1,083 9,900
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 6
Davis 1
Irvine 0
Los Angeles 21
Riverside 0
San Diego 7
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 427
Searchlight 477
Other - UC 129
Other-Network UC 14
_____
1,083
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 36
Davis 0
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 9,105
Searchlight 125
Other - UC 630
Other-Network UC 4
_____
9,900
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 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) 0:08
Average session length (minutes:seconds) 7:13
Longest session recorded (minutes:seconds) 83:10
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 550.8
Retrievals per search - standard deviation 3821.3
Percent of searches completed with 0 results 57.8%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 1,083 29.2%
PRESENT 1,922 51.9%
INIT or CLOSE 697 18.8%
OTHER 1 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 109 9.1% 86 78.9% 1 17.1 40.1
TITLE WORD 125 10.5% 70 56.0% 16 1750.6 8300.4
EXACT TITLE 10 0.8% 9 90.0% 3 3.0 0.0
JOURNAL TITLE 25 2.1% 23 92.0% 168 167.5 235.5
EXACT JOURNAL 40 3.4% 8 20.0% 2,274 6572.2 11118.1
SUBJECT WORD 70 5.9% 44 62.9% 32 965.5 3124.6
EXACT SUBJECT 30 2.5% 13 43.3% 66 1354.4 3624.9
KEYWORD 713 59.8% 403 56.5% 11 766.8 4522.0
DATE 24 2.0% 9 37.5% 94 201.0 423.0
ADDED SINCE 12 1.0% 8 66.7% 4 6.8 7.1
PUB TYPE 1 0.1% 0 0.0% 126 126.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 2 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 4 0.3% 0 0.0% 8 23.0 35.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 25 2.1% 11 44.0% 29 295.9 552.3
Other indexes 3 0.3% 1 33.3% 3,738 3738.0 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 95 8.8% 53 55.8% 14 226.0 652.5
Single 988 91.2% 573 58.0% 15 1414.6 6074.8
PRESENT commands, by type:
MARC 50.4%
OPAC 16.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w