MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 01/19/02 through 01/25/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 72 1,995
2-4 a.m. 42 374
4-6 a.m. 44 498
6-8 a.m. 36 1,353
8-10 a.m. 155 2,693
10-12 a.m. 489 12,777
12-2 p.m. 657 18,399
2-4 p.m. 752 15,425
4-6 p.m. 434 9,218
6-8 p.m. 278 6,167
8-10 p.m. 140 3,065
10-12 p.m. 114 3,219
__________ _____________ _________________
Total: 3,213 75,183
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 30
Davis 27
Irvine 8
Los Angeles 30
Riverside 0
San Diego 22
San Francisco 8
Santa Barbara 16
Santa Cruz 4
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,128
Searchlight 768
Other - UC 131
Other-Network UC 41
_____
3,213
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 309
Davis 155
Irvine 431
Los Angeles 281
Riverside 0
San Diego 43
San Francisco 2
Santa Barbara 179
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 72,290
Searchlight 694
Other - UC 194
Other-Network UC 603
_____
75,183
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 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 0.4
2.0 ABI Database Detailed Statistics
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Median session length (minutes:seconds) 5:23
Average session length (minutes:seconds) 12:52
Longest session recorded (minutes:seconds) 155:28
Average number of searches completed per session 0.0
Retrievals per search - median 13.0
Retrievals per search - average 1278.0
Retrievals per search - standard deviation 11522
Percent of searches completed with 0 results 23.5%
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 3,213 16.0%
PRESENT 14,901 74.2%
INIT or CLOSE 1,956 9.7%
OTHER 12 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 529 12.3% 126 23.8% 7 37.7 185.8
TITLE WORD 310 7.2% 91 29.4% 3 63.3 229.0
EXACT TITLE 29 0.7% 14 48.3% 1 2.3 2.3
JOURNAL 133 3.1% 53 39.8% 15 1326.7 5321.1
EXACT JOURNAL 422 9.8% 38 9.0% 821 2438.6 7607.3
SUBJECT 160 3.7% 70 43.8% 24 1120.4 4747.2
EXACT SUBJECT 59 1.4% 14 23.7% 9 3719.8 11685.9
KEYWORD 1,803 42.0% 444 24.6% 51 1805.2 15969.8
PUB TYPE 37 0.9% 4 10.8% 18 9171.7 36465.8
DATE 149 3.5% 43 28.9% 9 113.2 329.0
ADDED 24 0.6% 19 79.2% 21 30.4 26.9
LANGUAGE 28 0.7% 7 25.0% 67 897.7 3542.4
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 3 0.1% 1 33.3% 103 103.0 144.2
COMPANY NAME 128 3.0% 25 19.5% 89 295.6 478.4
EX COMPANY NAME 3 0.1% 2 66.7% 26 26.0 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 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 20 0.5% 5 25.0% 98 336.3 558.9
AT 454 10.6% 80 17.6% 88 1366.8 5064.7
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 878 27.3% 219 24.9% 25 844.3 3919.2
Single 2,335 72.7% 537 23.0% 49 1974.4 15180.5
PRESENT commands, by type:
MARC 50.8%
OPAC 23.5%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)