MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/27/01 through 11/02/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 36 992
2-4 a.m. 12 608
4-6 a.m. 3 13
6-8 a.m. 11 49
8-10 a.m. 117 833
10-12 a.m. 322 2,367
12-2 p.m. 369 2,567
2-4 p.m. 421 2,249
4-6 p.m. 279 2,482
6-8 p.m. 261 4,627
8-10 p.m. 160 718
10-12 p.m. 149 1,252
__________ _____________ _________________
Total: 2,140 18,757
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 6
Irvine 5
Los Angeles 76
Riverside 0
San Diego 4
San Francisco 2
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 801
Other - UC 1,236
Other-Network UC 6
_____
2,140
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3
Davis 39
Irvine 4
Los Angeles 1
Riverside 0
San Diego 0
San Francisco 8
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 18,650
Other-Network UC 52
_____
18,757
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 2.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:12
Average session length (minutes:seconds) 9:17
Longest session recorded (minutes:seconds) 78:34
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1237.1
Retrievals per search - standard deviation 8711.5
Percent of searches completed with 0 results 46.9%
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 2,140 28.4%
PRESENT 4,067 53.9%
INIT or CLOSE 1,328 17.6%
OTHER 5 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 182 7.0% 141 77.5% 5 129.4 674.8
TITLE WORD 302 11.7% 161 53.3% 34 736.1 3443.4
EXACT TITLE 18 0.7% 10 55.6% 15 31.4 48.2
JOURNAL TITLE 45 1.7% 26 57.8% 74 5409.9 17856.5
EXACT JOURNAL 87 3.4% 15 17.2% 4,021 15449.6 24056.1
SUBJECT WORD 135 5.2% 105 77.8% 10 2011.8 8804.3
EXACT SUBJECT 32 1.2% 3 9.4% 68 1907.3 4927.8
KEYWORD 1,466 56.7% 651 44.4% 7 1483.5 10765.1
DATE 67 2.6% 53 79.1% 10 52.9 117.7
ADDED SINCE 8 0.3% 5 62.5% 8 26.3 36.2
PUB TYPE 11 0.4% 6 54.5% 3 3.4 2.5
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 3 0.1% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 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 19 0.7% 7 36.8% 97 119.5 129.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 203 7.9% 41 20.2% 8 6287.8 24612.1
Other indexes 6 0.2% 0 0.0% 18 23.0 19.6
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 372 17.4% 166 44.6% 8 4963.0 21960.1
Single 1,768 82.6% 838 47.4% 13 1747.4 7957.7
PRESENT commands, by type:
MARC 49.5%
OPAC 25.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w