MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 04/14/01 through 04/20/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 135 3,910
2-4 a.m. 115 2,462
4-6 a.m. 18 386
6-8 a.m. 68 2,147
8-10 a.m. 383 10,818
10-12 a.m. 912 19,661
12-2 p.m. 965 26,936
2-4 p.m. 1,366 39,853
4-6 p.m. 956 26,254
6-8 p.m. 533 14,373
8-10 p.m. 383 11,298
10-12 p.m. 265 5,294
__________ _____________ _________________
Total: 6,099 163,392
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 13
Davis 10
Irvine 7
Los Angeles 5
Riverside 0
San Diego 34
San Francisco 9
Santa Barbara 9
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,030
Searchlight 1,882
Other - UC 78
Other-Network UC 21
_____
6,099
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 37
Davis 188
Irvine 160
Los Angeles 2
Riverside 0
San Diego 20
San Francisco 149
Santa Barbara 24
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 161,389
Searchlight 53
Other - UC 1,319
Other-Network UC 51
_____
163,392
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 4.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:15
Average session length (minutes:seconds) 12:20
Longest session recorded (minutes:seconds) 173:25
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 752.2
Retrievals per search - standard deviation 5833.4
Percent of searches completed with 0 results 28.5%
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 6,099 15.0%
PRESENT 30,873 76.1%
INIT or CLOSE 3,560 8.8%
OTHER 14 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 689 8.9% 193 28.0% 5 67.8 395.9
TITLE WORD 581 7.5% 150 25.8% 5 85.9 346.2
EXACT TITLE 77 1.0% 55 71.4% 1 1.3 1.0
JOURNAL 276 3.6% 103 37.3% 8 1076.9 5136.2
EXACT JOURNAL 619 8.0% 117 18.9% 479 2209.7 5893.0
SUBJECT 447 5.8% 221 49.4% 16 343.2 1060.6
EXACT SUBJECT 106 1.4% 17 16.0% 72 2608.9 7550.2
KEYWORD 3,862 49.7% 1,074 27.8% 32 1045.1 7975.4
PUB TYPE 124 1.6% 20 16.1% 60 280.4 451.7
DATE 210 2.7% 51 24.3% 21 432.7 1315.1
ADDED 16 0.2% 13 81.3% 3 4.0 3.6
LANGUAGE 70 0.9% 18 25.7% 20 567.7 1263.1
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 32 0.4% 11 34.4% 18 680.7 2058.6
COMPANY NAME 125 1.6% 38 30.4% 26 290.1 804.4
EX COMPANY NAME 11 0.1% 5 45.5% 38 196.7 266.6
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 4 0.1% 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 62 0.8% 13 21.0% 19 284.0 826.1
AT 448 5.8% 97 21.6% 72 1592.1 12577.6
Other indexes 14 0.2% 8 57.1% 7 43.3 75.7
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 1,321 21.7% 364 27.6% 17 712.0 7662.3
Single 4,778 78.3% 1,376 28.8% 35 1148.3 6638.0
PRESENT commands, by type:
MARC 46.8%
OPAC 21.6%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)