MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/26/01 through 06/01/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 27 781
2-4 a.m. 34 1,220
4-6 a.m. 14 116
6-8 a.m. 20 326
8-10 a.m. 83 1,455
10-12 a.m. 227 2,341
12-2 p.m. 283 2,816
2-4 p.m. 435 5,498
4-6 p.m. 351 3,630
6-8 p.m. 149 1,718
8-10 p.m. 151 2,616
10-12 p.m. 89 401
__________ _____________ _________________
Total: 1,863 22,918
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 2
Irvine 2
Los Angeles 6
Riverside 0
San Diego 13
San Francisco 1
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 976
Searchlight 836
Other - UC 24
Other-Network UC 1
_____
1,863
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1
Davis 42
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 21,763
Searchlight 1,070
Other - UC 42
Other-Network UC 0
_____
22,918
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 1.6
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) 7:43
Longest session recorded (minutes:seconds) 193:07
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 714.2
Retrievals per search - standard deviation 3938.5
Percent of searches completed with 0 results 53.0%
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 1,863 26.0%
PRESENT 4,080 56.9%
INIT or CLOSE 1,221 17.0%
OTHER 4 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 79 3.6% 60 75.9% 22 93.1 323.3
TITLE WORD 149 6.8% 86 57.7% 8 251.1 1135.5
EXACT TITLE 9 0.4% 7 77.8% 1 1.0 0.0
JOURNAL TITLE 41 1.9% 31 75.6% 289 4593.0 11397.4
EXACT JOURNAL 96 4.4% 8 8.3% 3,450 8238.3 12043.3
SUBJECT WORD 110 5.0% 76 69.1% 18 414.3 1105.1
EXACT SUBJECT 46 2.1% 12 26.1% 68 2619.6 7044.0
KEYWORD 1,392 63.9% 749 53.8% 14 683.2 3431.5
DATE 24 1.1% 10 41.7% 53 191.7 477.8
ADDED SINCE 14 0.6% 6 42.9% 18 26.4 28.8
PUB TYPE 7 0.3% 3 42.9% 7 6.5 4.1
SUBFILE 2 0.1% 2 100% 0 0.0 0.0
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 35 1.6% 4 11.4% 58 520.7 954.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 172 7.9% 66 38.4% 15 775.8 3235.8
Other indexes 3 0.1% 0 0.0% 1 12.0 19.1
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 255 13.7% 104 40.8% 16 621.6 2738.7
Single 1,608 86.3% 884 55.0% 21 1708.1 6058.5
PRESENT commands, by type:
MARC 44.0%
OPAC 30.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w