MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 03/24/01 through 03/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 56 1,989
2-4 a.m. 84 1,189
4-6 a.m. 11 132
6-8 a.m. 15 833
8-10 a.m. 241 6,522
10-12 a.m. 657 15,782
12-2 p.m. 576 17,239
2-4 p.m. 700 19,142
4-6 p.m. 410 11,958
6-8 p.m. 153 4,029
8-10 p.m. 108 3,843
10-12 p.m. 92 4,377
__________ _____________ _________________
Total: 3,103 87,035
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 19
Davis 4
Irvine 25
Los Angeles 13
Riverside 0
San Diego 49
San Francisco 9
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,255
Searchlight 691
Other - UC 22
Other-Network UC 16
_____
3,103
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 763
Davis 19
Irvine 1,211
Los Angeles 343
Riverside 0
San Diego 82
San Francisco 52
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 84,041
Searchlight 54
Other - UC 285
Other-Network UC 185
_____
87,035
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.0
Standard deviation in seconds 2.6
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 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 20:02
Average session length (minutes:seconds) 15:19
Longest session recorded (minutes:seconds) 235:32
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 1716.9
Retrievals per search - standard deviation 11269
Percent of searches completed with 0 results 26.3%
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 3,103 13.8%
PRESENT 17,652 78.5%
INIT or CLOSE 1,689 7.5%
OTHER 29 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 586 15.0% 150 25.6% 5 43.7 353.3
TITLE WORD 417 10.7% 125 30.0% 4 103.7 431.9
EXACT TITLE 64 1.6% 22 34.4% 1 2.4 4.4
JOURNAL 244 6.2% 100 41.0% 17 2171.6 5916.5
EXACT JOURNAL 341 8.7% 50 14.7% 479 2431.5 11320.9
SUBJECT 146 3.7% 72 49.3% 24 1203.2 5546.2
EXACT SUBJECT 50 1.3% 12 24.0% 77 6422.2 25030.1
KEYWORD 1,588 40.7% 403 25.4% 40 3325.7 16395.0
PUB TYPE 33 0.8% 13 39.4% 48 113.0 161.8
DATE 127 3.3% 40 31.5% 5 140.4 898.5
ADDED 19 0.5% 16 84.2% 11 12.0 6.6
LANGUAGE 68 1.7% 20 29.4% 7 603.7 2704.0
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 17 0.4% 4 23.5% 13 20.0 20.7
COMPANY NAME 56 1.4% 23 41.1% 5 111.7 168.0
EX COMPANY NAME 5 0.1% 1 20.0% 126 96.8 63.5
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 2 0.1% 1 50.0% 245 245.0 0.0
ID NUMBER 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 749 749.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 30 0.8% 8 26.7% 5 108.7 218.7
AT 110 2.8% 23 20.9% 39 16988.5 38483.1
Other indexes 2 0.1% 1 50.0% 142 142.0 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 613 19.8% 196 32.0% 7 3640.7 18803.6
Single 2,490 80.2% 620 24.9% 37 2037.2 11395.6
PRESENT commands, by type:
MARC 51.5%
OPAC 16.1%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)