MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/07/01 through 04/13/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 27 2,677
2-4 a.m. 22 403
4-6 a.m. 4 0
6-8 a.m. 12 23
8-10 a.m. 108 763
10-12 a.m. 267 1,827
12-2 p.m. 287 2,445
2-4 p.m. 334 1,800
4-6 p.m. 264 2,643
6-8 p.m. 156 2,077
8-10 p.m. 124 1,660
10-12 p.m. 89 1,187
__________ _____________ _________________
Total: 1,694 17,505
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 2
Davis 10
Irvine 1
Los Angeles 12
Riverside 0
San Diego 46
San Francisco 2
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 738
Searchlight 779
Other - UC 95
Other-Network UC 5
_____
1,694
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 431
Irvine 21
Los Angeles 4
Riverside 0
San Diego 2
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 14,565
Searchlight 1,706
Other - UC 484
Other-Network UC 292
_____
17,505
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 1.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:21
Longest session recorded (minutes:seconds) 143:35
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 950.7
Retrievals per search - standard deviation 8155.0
Percent of searches completed with 0 results 53.8%
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 1,694 27.8%
PRESENT 3,244 53.2%
INIT or CLOSE 1,156 19.0%
OTHER 2 0.0%
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 131 6.6% 110 84.0% 4 15.6 43.7
TITLE WORD 209 10.6% 108 51.7% 10 577.5 3256.1
EXACT TITLE 13 0.7% 12 92.3% 2 2.0 0.0
JOURNAL TITLE 39 2.0% 31 79.5% 13 1033.1 2820.9
EXACT JOURNAL 53 2.7% 3 5.7% 2,310 7841.5 15066.8
SUBJECT WORD 105 5.3% 70 66.7% 29 462.2 1354.9
EXACT SUBJECT 32 1.6% 15 46.9% 53 515.0 1018.7
KEYWORD 1,187 60.0% 621 52.3% 14 2012.3 13065.5
DATE 33 1.7% 13 39.4% 206 484.0 746.2
ADDED SINCE 14 0.7% 7 50.0% 9 36.9 54.2
PUB TYPE 10 0.5% 9 90.0% 27 27.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 2 0.1% 0 0.0% 1 1.0 0.0
ISSN 1 0.1% 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 11 0.6% 4 36.4% 4 1181.1 3089.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 133 6.7% 50 37.6% 16 2271.7 10349.1
Other indexes 6 0.3% 4 66.7% 1 1.0 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 247 14.6% 126 51.0% 20 1647.8 8619.4
Single 1,447 85.4% 786 54.3% 17 2134.9 12423.5
PRESENT commands, by type:
MARC 47.5%
OPAC 32.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w