MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 01/20/01 through 01/26/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 90 3,268
2-4 a.m. 30 846
4-6 a.m. 10 113
6-8 a.m. 51 1,202
8-10 a.m. 327 6,288
10-12 a.m. 873 19,042
12-2 p.m. 1,199 26,056
2-4 p.m. 1,119 23,942
4-6 p.m. 858 26,628
6-8 p.m. 465 10,746
8-10 p.m. 328 7,863
10-12 p.m. 167 3,987
__________ _____________ _________________
Total: 5,517 129,981
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 17
Davis 12
Irvine 41
Los Angeles 4
Riverside 7
San Diego 16
San Francisco 17
Santa Barbara 3
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,200
Searchlight 2,051
Other - UC 115
Other-Network UC 33
_____
5,517
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 212
Davis 112
Irvine 510
Los Angeles 43
Riverside 149
San Diego 99
San Francisco 152
Santa Barbara 155
Santa Cruz 16
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 125,831
Searchlight 434
Other - UC 1,577
Other-Network UC 691
_____
129,981
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 5.1
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) 0:09
Average session length (minutes:seconds) 10:16
Longest session recorded (minutes:seconds) 183:27
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 1012.2
Retrievals per search - standard deviation 7606.2
Percent of searches completed with 0 results 29.6%
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 5,517 16.0%
PRESENT 25,460 74.0%
INIT or CLOSE 3,401 9.9%
OTHER 32 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 603 8.8% 161 26.7% 7 122.4 1757.8
TITLE WORD 463 6.7% 176 38.0% 4 102.0 474.0
EXACT TITLE 42 0.6% 24 57.1% 1 62.8 257.4
JOURNAL 238 3.5% 111 46.6% 9 1018.9 4969.6
EXACT JOURNAL 433 6.3% 77 17.8% 541 2801.2 8272.3
SUBJECT 350 5.1% 201 57.4% 24 1918.2 10220.9
EXACT SUBJECT 123 1.8% 31 25.2% 46 1791.3 5237.8
KEYWORD 3,742 54.5% 1,043 27.9% 34 1439.2 9923.3
PUB TYPE 67 1.0% 14 20.9% 29 336.2 665.8
DATE 183 2.7% 60 32.8% 29 125.4 287.9
ADDED 17 0.2% 10 58.8% 18 19.4 13.9
LANGUAGE 54 0.8% 14 25.9% 48 2998.6 15701.1
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 14 0.2% 4 28.6% 15 5757.1 17119.9
COMPANY NAME 81 1.2% 27 33.3% 14 106.3 244.8
EX COMPANY NAME 7 0.1% 5 71.4% 226 225.5 316.1
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 48 0.7% 4 8.3% 36 262.4 760.9
AT 389 5.7% 96 24.7% 22 560.8 3664.1
Other indexes 6 0.1% 4 66.7% 60 59.5 81.3
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 1,108 20.1% 351 31.7% 15 424.0 4286.1
Single 4,409 79.9% 1,281 29.1% 34 1682.6 9825.7
PRESENT commands, by type:
MARC 50.5%
OPAC 21.4%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)