MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/00 through 12/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 146 644
2-4 a.m. 57 332
4-6 a.m. 25 284
6-8 a.m. 54 751
8-10 a.m. 245 2,096
10-12 a.m. 678 8,362
12-2 p.m. 659 3,708
2-4 p.m. 890 6,871
4-6 p.m. 607 5,487
6-8 p.m. 327 2,805
8-10 p.m. 263 4,488
10-12 p.m. 182 2,220
__________ _____________ _________________
Total: 4,133 38,048
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 12
Davis 6
Irvine 1
Los Angeles 48
Riverside 0
San Diego 47
San Francisco 1
Santa Barbara 5
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,768
Searchlight 1,777
Other - UC 439
Other-Network UC 27
_____
4,133
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 54
Davis 2
Irvine 6
Los Angeles 162
Riverside 0
San Diego 71
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 34,000
Searchlight 615
Other - UC 3,070
Other-Network UC 68
_____
38,048
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 1.5
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 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:08
Average session length (minutes:seconds) 7:42
Longest session recorded (minutes:seconds) 91:46
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 728.2
Retrievals per search - standard deviation 8831.8
Percent of searches completed with 0 results 55.6%
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 4,133 29.5%
PRESENT 7,166 51.2%
INIT or CLOSE 2,684 19.2%
OTHER 14 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 307 6.5% 225 73.3% 2 106.7 475.2
TITLE WORD 487 10.3% 243 49.9% 14 597.3 4046.7
EXACT TITLE 39 0.8% 34 87.2% 1 19.4 40.0
JOURNAL TITLE 97 2.0% 84 86.6% 42 2753.4 5862.4
EXACT JOURNAL 153 3.2% 39 25.5% 2,274 9517.4 13772.3
SUBJECT WORD 330 6.9% 219 66.4% 26 906.5 3180.9
EXACT SUBJECT 123 2.6% 46 37.4% 39 1817.9 8711.5
KEYWORD 2,770 58.3% 1,541 55.6% 14 1191.7 15059.4
DATE 103 2.2% 34 33.0% 9 418.9 2063.2
ADDED SINCE 48 1.0% 34 70.8% 3 9.5 13.0
PUB TYPE 40 0.8% 28 70.0% 4 1382.8 4717.4
SUBFILE 5 0.1% 4 80.0% 207 207.0 0.0
ID 9 0.2% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 23 0.5% 7 30.4% 21 499.8 1660.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 212 4.5% 90 42.4% 31 573.7 1674.6
Other indexes 4 0.1% 1 25.0% 3,738 9272.7 9586.3
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 509 12.3% 269 52.8% 14 442.8 1678.4
Single 3,624 87.7% 2,030 56.0% 18 1821.4 14139.5
PRESENT commands, by type:
MARC 51.1%
OPAC 20.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w