MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 04/20/02 through 04/26/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 152 3,308
2-4 a.m. 189 2,419
4-6 a.m. 29 37
6-8 a.m. 50 264
8-10 a.m. 213 3,954
10-12 a.m. 511 12,657
12-2 p.m. 793 17,674
2-4 p.m. 882 15,210
4-6 p.m. 683 18,268
6-8 p.m. 346 6,200
8-10 p.m. 336 7,120
10-12 p.m. 263 5,654
__________ _____________ _________________
Total: 4,447 92,765
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 31
Davis 24
Irvine 88
Los Angeles 10
Riverside 0
San Diego 11
San Francisco 3
Santa Barbara 35
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 2,520
Searchlight 1,636
Other - UC 68
Other-Network UC 18
_____
4,447
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 284
Davis 35
Irvine 651
Los Angeles 465
Riverside 0
San Diego 137
San Francisco 2
Santa Barbara 387
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 88,470
Searchlight 266
Other - UC 879
Other-Network UC 1,189
_____
92,765
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 6.2
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) 0:04
Average session length (minutes:seconds) 10:31
Longest session recorded (minutes:seconds) 94:52
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 826.2
Retrievals per search - standard deviation 6663.7
Percent of searches completed with 0 results 31.2%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 4,447 16.6%
PRESENT 19,343 72.3%
INIT or CLOSE 2,947 11.0%
OTHER 8 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 529 9.9% 148 28.0% 6 46.7 300.9
TITLE WORD 485 9.1% 165 34.0% 3 125.9 801.6
EXACT TITLE 31 0.6% 13 41.9% 1 147.7 395.2
JOURNAL 142 2.7% 63 44.4% 14 1131.4 4870.3
EXACT JOURNAL 596 11.2% 63 10.6% 659 2333.0 6035.5
SUBJECT 184 3.4% 122 66.3% 63 336.7 665.1
EXACT SUBJECT 50 0.9% 14 28.0% 43 6592.4 22210.3
KEYWORD 2,758 51.6% 952 34.5% 28 1123.8 9262.0
PUB TYPE 39 0.7% 11 28.2% 19 218.4 865.0
DATE 106 2.0% 39 36.8% 19 65.8 237.1
ADDED 35 0.7% 27 77.1% 4 9.8 16.0
LANGUAGE 41 0.8% 14 34.1% 17 626.4 1705.2
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 14 0.3% 2 14.3% 9 152.6 465.4
COMPANY NAME 27 0.5% 10 37.0% 45 96.7 166.4
EX COMPANY NAME 9 0.2% 3 33.3% 43 20814.8 50640.4
DUNS 0 0.0% 0 0.0% 0 0.0 0.0
TICKER SYMBOL 0 0.0% 0 0.0% 0 0.0 0.0
ID NUMBER 2 0.0% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 21 0.4% 2 9.5% 190 1129.8 1700.1
AT 270 5.1% 51 18.9% 56 957.2 2388.9
Other indexes 2 0.0% 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 754 17.0% 263 34.9% 13 762.7 5842.5
Single 3,693 83.0% 1,126 30.5% 42 1285.4 8356.9
PRESENT commands, by type:
MARC 54.0%
OPAC 20.9%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)