MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/02 through 06/07/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 55 49
2-4 a.m. 29 102
4-6 a.m. 10 23
6-8 a.m. 22 142
8-10 a.m. 67 673
10-12 a.m. 165 1,588
12-2 p.m. 290 1,002
2-4 p.m. 413 2,261
4-6 p.m. 282 1,764
6-8 p.m. 140 407
8-10 p.m. 157 465
10-12 p.m. 128 278
__________ _____________ _________________
Total: 1,758 8,754
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 9
Irvine 1
Los Angeles 4
Riverside 0
San Diego 0
San Francisco 3
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 502
Searchlight 1,225
Other - UC 10
Other-Network UC 1
_____
1,758
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 26
Davis 1
Irvine 1
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 24
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 8,532
Searchlight 69
Other - UC 100
Other-Network UC 1
_____
8,754
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 3:28
Longest session recorded (minutes:seconds) 73:41
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 372.5
Retrievals per search - standard deviation 3174.2
Percent of searches completed with 0 results 57.6%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 1,758 36.4%
PRESENT 1,635 33.8%
INIT or CLOSE 1,438 29.7%
OTHER 3 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 77 4.1% 53 68.8% 9 104.0 271.6
TITLE WORD 57 3.0% 35 61.4% 25 260.3 627.4
EXACT TITLE 7 0.4% 7 100% 0 0.0 0.0
JOURNAL TITLE 30 1.6% 25 83.3% 13 177.0 335.1
EXACT JOURNAL 36 1.9% 7 19.4% 2,016 8850.3 16329.9
SUBJECT WORD 57 3.0% 41 71.9% 9 531.4 1256.0
EXACT SUBJECT 15 0.8% 4 26.7% 33 1918.4 4925.0
KEYWORD 1,512 80.1% 868 57.4% 12 558.4 3457.0
DATE 13 0.7% 7 53.8% 4 11.8 14.6
ADDED SINCE 5 0.3% 3 60.0% 15 15.0 12.7
PUB TYPE 3 0.2% 0 0.0% 8 6.0 4.4
SUBFILE 2 0.1% 0 0.0% 304 304.0 425.7
ID 0 0.0% 0 0.0% 0 0.0 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 6 0.3% 1 16.7% 261 213.0 215.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 62 3.3% 25 40.3% 12 257.5 940.8
Other indexes 5 0.3% 5 100% 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 115 6.5% 60 52.2% 12 205.7 779.0
Single 1,643 93.5% 953 58.0% 13 932.8 5012.5
PRESENT commands, by type:
MARC 46.4%
OPAC 24.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w