MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 02/16/02 through 02/22/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 98 1,930
2-4 a.m. 101 1,262
4-6 a.m. 61 607
6-8 a.m. 38 1,555
8-10 a.m. 212 4,907
10-12 a.m. 577 11,526
12-2 p.m. 731 21,133
2-4 p.m. 958 19,154
4-6 p.m. 734 21,562
6-8 p.m. 370 10,653
8-10 p.m. 387 8,601
10-12 p.m. 196 4,044
__________ _____________ _________________
Total: 4,463 106,934
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 35
Davis 12
Irvine 1
Los Angeles 22
Riverside 0
San Diego 9
San Francisco 30
Santa Barbara 22
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,623
Searchlight 1,615
Other - UC 70
Other-Network UC 24
_____
4,463
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 217
Davis 296
Irvine 20
Los Angeles 86
Riverside 0
San Diego 65
San Francisco 272
Santa Barbara 312
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 103,313
Searchlight 1,110
Other - UC 671
Other-Network UC 572
_____
106,934
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.9
Standard deviation in seconds 2.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 10:25
Longest session recorded (minutes:seconds) 168:00
Average number of searches completed per session 0.0
Retrievals per search - median 5.0
Retrievals per search - average 1088.4
Retrievals per search - standard deviation 8243.5
Percent of searches completed with 0 results 30.2%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 4,463 15.6%
PRESENT 21,249 74.3%
INIT or CLOSE 2,856 10.0%
OTHER 18 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 523 9.3% 154 29.4% 5 48.6 244.5
TITLE WORD 398 7.1% 134 33.7% 2 95.6 507.5
EXACT TITLE 38 0.7% 24 63.2% 1 174.1 646.1
JOURNAL 158 2.8% 76 48.1% 10 1177.6 5283.8
EXACT JOURNAL 599 10.7% 70 11.7% 695 2375.4 6271.6
SUBJECT 253 4.5% 140 55.3% 18 936.9 4576.8
EXACT SUBJECT 76 1.4% 25 32.9% 91 21875.8 55238.2
KEYWORD 2,758 49.2% 866 31.4% 27 1568.8 10811.9
PUB TYPE 29 0.5% 8 27.6% 10 45.7 84.3
DATE 147 2.6% 49 33.3% 11 64.2 304.9
ADDED 38 0.7% 15 39.5% 9 12.6 13.3
LANGUAGE 44 0.8% 16 36.4% 7 123.9 267.7
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 9 0.2% 6 66.7% 12 26430.7 45768.0
COMPANY NAME 144 2.6% 42 29.2% 10 61.3 135.3
EX COMPANY NAME 8 0.1% 2 25.0% 159 389.8 528.3
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 3 0.1% 0 0.0% 185 181.0 178.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 35 0.6% 13 37.1% 60 382.4 623.9
AT 326 5.8% 66 20.2% 75 1087.2 3829.4
Other indexes 15 0.3% 9 60.0% 171 156.5 101.6
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 891 20.0% 267 30.0% 12 1779.0 14516.4
Single 3,572 80.0% 1,080 30.2% 38 1503.8 8251.6
PRESENT commands, by type:
MARC 49.7%
OPAC 24.3%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)