MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/02 through 06/30/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 173 1,294
2-4 a.m. 66 410
4-6 a.m. 23 64
6-8 a.m. 52 360
8-10 a.m. 195 1,086
10-12 a.m. 547 2,919
12-2 p.m. 639 3,051
2-4 p.m. 899 3,736
4-6 p.m. 664 3,521
6-8 p.m. 328 2,322
8-10 p.m. 275 618
10-12 p.m. 207 655
__________ _____________ _________________
Total: 4,068 20,036
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 6
Davis 21
Irvine 1
Los Angeles 15
Riverside 0
San Diego 7
San Francisco 5
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,114
Searchlight 2,804
Other - UC 81
Other-Network UC 11
_____
4,068
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 26
Davis 33
Irvine 1
Los Angeles 10
Riverside 0
San Diego 10
San Francisco 24
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 18,099
Searchlight 977
Other - UC 852
Other-Network UC 3
_____
20,036
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 0.7
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 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:24
Longest session recorded (minutes:seconds) 92:12
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 551.7
Retrievals per search - standard deviation 4874.6
Percent of searches completed with 0 results 59.8%
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 4,068 36.3%
PRESENT 3,800 33.9%
INIT or CLOSE 3,316 29.6%
OTHER 10 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 209 4.7% 155 74.2% 6 68.7 199.4
TITLE WORD 184 4.2% 101 54.9% 25 798.5 4256.2
EXACT TITLE 18 0.4% 17 94.4% 1 1.0 0.0
JOURNAL TITLE 58 1.3% 49 84.5% 12 104.2 252.3
EXACT JOURNAL 111 2.5% 15 13.5% 766 7606.8 12736.9
SUBJECT WORD 115 2.6% 80 69.6% 11 301.0 895.8
EXACT SUBJECT 41 0.9% 13 31.7% 37 14009.0 37270.9
KEYWORD 3,409 77.0% 2,065 60.6% 13 774.1 4845.3
DATE 40 0.9% 17 42.5% 11 35.7 65.4
ADDED SINCE 22 0.5% 12 54.5% 22 25.4 21.8
PUB TYPE 11 0.2% 3 27.3% 2 4.4 4.2
SUBFILE 2 0.0% 0 0.0% 304 304.0 425.7
ID 2 0.0% 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 17 0.4% 1 5.9% 208 435.8 752.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 184 4.2% 85 46.2% 24 4452.1 21354.0
Other indexes 6 0.1% 6 100% 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 316 7.8% 164 51.9% 19 2953.3 17327.3
Single 3,752 92.2% 2,270 60.5% 14 1211.4 5754.3
PRESENT commands, by type:
MARC 45.8%
OPAC 27.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w