MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/30/02 through 04/05/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 45 86
2-4 a.m. 40 308
4-6 a.m. 17 0
6-8 a.m. 18 34
8-10 a.m. 90 128
10-12 a.m. 217 217
12-2 p.m. 239 731
2-4 p.m. 269 712
4-6 p.m. 208 979
6-8 p.m. 153 431
8-10 p.m. 75 33
10-12 p.m. 84 135
__________ _____________ _________________
Total: 1,455 3,794
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 1
Irvine 1
Los Angeles 6
Riverside 1
San Diego 0
San Francisco 0
Santa Barbara 3
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 295
Searchlight 984
Other - UC 159
Other-Network UC 3
_____
1,455
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 0
Los Angeles 89
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 184
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,049
Searchlight 52
Other - UC 391
Other-Network UC 29
_____
3,794
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.2
Standard deviation in seconds 0.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.1
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:12
Longest session recorded (minutes:seconds) 96:50
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 469.2
Retrievals per search - standard deviation 3907.0
Percent of searches completed with 0 results 55.7%
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 1,455 39.5%
PRESENT 982 26.7%
INIT or CLOSE 1,246 33.8%
OTHER 0 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 54 3.5% 35 64.8% 4 5.4 4.3
TITLE WORD 80 5.2% 46 57.5% 16 240.0 450.0
EXACT TITLE 12 0.8% 12 100% 0 0.0 0.0
JOURNAL TITLE 11 0.7% 10 90.9% 4 4.0 0.0
EXACT JOURNAL 60 3.9% 4 6.7% 766 3094.8 7886.7
SUBJECT WORD 42 2.7% 29 69.0% 6 25.1 39.2
EXACT SUBJECT 7 0.5% 1 14.3% 518 4695.0 10558.3
KEYWORD 1,196 78.0% 680 56.9% 18 915.9 5817.0
DATE 8 0.5% 6 75.0% 60 60.0 76.4
ADDED SINCE 6 0.4% 5 83.3% 13 13.0 0.0
PUB TYPE 4 0.3% 2 50.0% 4 3.5 3.5
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 3 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 5 0.3% 4 80.0% 6 6.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 43 2.8% 19 44.2% 13 148.7 450.1
Other indexes 2 0.1% 2 100% 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 64 4.4% 35 54.7% 11 127.8 411.0
Single 1,391 95.6% 775 55.7% 18 1102.2 5948.5
PRESENT commands, by type:
MARC 67.3%
OPAC 18.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w