MELSRV ABI 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. 80 1,325
2-4 a.m. 194 2,879
4-6 a.m. 29 98
6-8 a.m. 22 84
8-10 a.m. 175 3,669
10-12 a.m. 391 3,893
12-2 p.m. 437 7,884
2-4 p.m. 588 10,111
4-6 p.m. 511 7,034
6-8 p.m. 263 5,223
8-10 p.m. 138 1,775
10-12 p.m. 99 1,642
__________ _____________ _________________
Total: 2,927 45,617
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 22
Davis 18
Irvine 10
Los Angeles 18
Riverside 3
San Diego 7
San Francisco 3
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 2
Los Alamos 0
MELWEB 1,624
Searchlight 1,073
Other - UC 130
Other-Network UC 14
_____
2,927
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 104
Davis 36
Irvine 384
Los Angeles 50
Riverside 14
San Diego 117
San Francisco 29
Santa Barbara 96
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 3
Los Alamos 0
MELWEB 43,144
Searchlight 436
Other - UC 566
Other-Network UC 638
_____
45,617
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 1.6
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) 0:03
Average session length (minutes:seconds) 9:55
Longest session recorded (minutes:seconds) 103:22
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 1087.5
Retrievals per search - standard deviation 6288.9
Percent of searches completed with 0 results 29.4%
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 2,927 20.9%
PRESENT 9,011 64.2%
INIT or CLOSE 2,086 14.9%
OTHER 4 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 384 11.3% 119 31.0% 6 94.9 911.4
TITLE WORD 230 6.8% 73 31.7% 2 161.6 823.0
EXACT TITLE 29 0.9% 18 62.1% 1 2.4 4.2
JOURNAL 156 4.6% 70 44.9% 5 964.2 3886.8
EXACT JOURNAL 490 14.4% 41 8.4% 682 2262.9 6253.8
SUBJECT 70 2.1% 37 52.9% 19 2773.4 13840.8
EXACT SUBJECT 40 1.2% 11 27.5% 3 691.6 2310.2
KEYWORD 1,725 50.8% 575 33.3% 39 1751.0 9045.7
PUB TYPE 9 0.3% 3 33.3% 52 209.5 414.2
DATE 63 1.9% 16 25.4% 16 68.4 139.3
ADDED 22 0.6% 16 72.7% 10 17.0 19.7
LANGUAGE 11 0.3% 2 18.2% 48 151.2 205.1
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 6 0.2% 1 16.7% 22 167.0 310.6
COMPANY NAME 28 0.8% 8 28.6% 3 10.9 17.5
EX COMPANY NAME 5 0.1% 4 80.0% 5 5.0 0.0
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 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 0 0.0% 235 235.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 10 0.3% 0 0.0% 45 170.5 238.6
AT 113 3.3% 15 13.3% 55 1200.9 4962.3
Other indexes 7 0.2% 6 85.7% 113 113.0 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 410 14.0% 135 32.9% 10 783.7 5662.3
Single 2,517 86.0% 725 28.8% 48 1655.9 7668.3
PRESENT commands, by type:
MARC 51.0%
OPAC 21.4%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)