MELSRV ABI DATABASES Z39.50 SERVER STATISTICS
Time period: 05/25/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 103 1,509
2-4 a.m. 179 1,932
4-6 a.m. 35 493
6-8 a.m. 41 358
8-10 a.m. 214 5,086
10-12 a.m. 508 11,143
12-2 p.m. 660 17,078
2-4 p.m. 765 15,432
4-6 p.m. 585 20,395
6-8 p.m. 267 6,085
8-10 p.m. 318 9,489
10-12 p.m. 215 5,038
__________ _____________ _________________
Total: 3,890 94,038
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 18
Davis 25
Irvine 9
Los Angeles 39
Riverside 1
San Diego 29
San Francisco 0
Santa Barbara 12
Santa Cruz 4
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,184
Searchlight 1,528
Other - UC 37
Other-Network UC 4
_____
3,890
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 58
Davis 39
Irvine 428
Los Angeles 892
Riverside 0
San Diego 600
San Francisco 0
Santa Barbara 11
Santa Cruz 36
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 90,896
Searchlight 312
Other - UC 657
Other-Network UC 109
_____
94,038
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.8
Standard deviation in seconds 1.4
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) 10:40
Longest session recorded (minutes:seconds) 133:28
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 818.5
Retrievals per search - standard deviation 10795
Percent of searches completed with 0 results 30.4%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 3,890 15.1%
PRESENT 19,277 74.7%
INIT or CLOSE 2,632 10.2%
OTHER 19 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 366 7.5% 105 28.7% 9 126.9 864.7
TITLE WORD 190 3.9% 74 38.9% 3 148.0 658.0
EXACT TITLE 25 0.5% 10 40.0% 1 1.4 1.5
JOURNAL 145 3.0% 58 40.0% 9 2348.8 9001.0
EXACT JOURNAL 468 9.6% 64 13.7% 505 1775.7 5375.4
SUBJECT 213 4.4% 137 64.3% 32 2284.1 9166.2
EXACT SUBJECT 69 1.4% 30 43.5% 15 681.4 2743.7
KEYWORD 2,698 55.6% 834 30.9% 21 1081.3 15121.7
PUB TYPE 13 0.3% 5 38.5% 46 74.3 94.7
DATE 103 2.1% 25 24.3% 8 42.0 84.1
ADDED 37 0.8% 33 89.2% 21 64.3 100.8
LANGUAGE 30 0.6% 17 56.7% 31 39.8 33.5
GEOGRAPHIC NAME 0 0.0% 0 0.0% 0 0.0 0.0
SUBJ CATEGORY 13 0.3% 3 23.1% 22 22.9 19.6
COMPANY NAME 40 0.8% 12 30.0% 17 285.8 883.5
EX COMPANY NAME 2 0.0% 1 50.0% 30 30.0 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 50 1.0% 8 16.0% 15 86.1 170.3
AT 376 7.7% 85 22.6% 29 1100.9 7542.8
Other indexes 14 0.3% 6 42.9% 1,919 1949.6 2081.5
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 788 20.3% 259 32.9% 15 662.0 5622.9
Single 3,102 79.7% 924 29.8% 34 1301.1 14138.9
PRESENT commands, by type:
MARC 51.3%
OPAC 22.6%
SABmm/dd srv.abi MELSRV ABI DATABASES Z39.50 SERVER STATISTICS (weekly)