MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/09/01 through 06/15/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 50 285
2-4 a.m. 37 1,060
4-6 a.m. 4 0
6-8 a.m. 17 72
8-10 a.m. 64 411
10-12 a.m. 197 977
12-2 p.m. 186 1,393
2-4 p.m. 244 2,313
4-6 p.m. 164 1,020
6-8 p.m. 72 563
8-10 p.m. 99 866
10-12 p.m. 58 462
__________ _____________ _________________
Total: 1,192 9,422
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 20
Davis 9
Irvine 0
Los Angeles 6
Riverside 0
San Diego 13
San Francisco 1
Santa Barbara 4
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 542
Searchlight 553
Other - UC 34
Other-Network UC 10
_____
1,192
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 50
Davis 2
Irvine 0
Los Angeles 3
Riverside 0
San Diego 71
San Francisco 0
Santa Barbara 48
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 7,939
Searchlight 842
Other - UC 435
Other-Network UC 32
_____
9,422
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 1.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 6:41
Longest session recorded (minutes:seconds) 114:37
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 664.9
Retrievals per search - standard deviation 3784.6
Percent of searches completed with 0 results 50.2%
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 1,192 29.6%
PRESENT 2,051 50.9%
INIT or CLOSE 784 19.5%
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 96 6.8% 70 72.9% 3 53.3 164.1
TITLE WORD 168 11.9% 70 41.7% 33 924.1 2069.1
EXACT TITLE 8 0.6% 7 87.5% 1 1.0 0.0
JOURNAL TITLE 38 2.7% 26 68.4% 36 576.5 1168.0
EXACT JOURNAL 70 4.9% 14 20.0% 766 7650.5 12696.4
SUBJECT WORD 63 4.5% 37 58.7% 8 291.7 1170.0
EXACT SUBJECT 29 2.0% 8 27.6% 123 553.2 784.1
KEYWORD 787 55.6% 407 51.7% 10 651.8 3524.2
DATE 68 4.8% 20 29.4% 170 1662.2 2537.6
ADDED SINCE 12 0.8% 7 58.3% 11 25.8 32.8
PUB TYPE 11 0.8% 9 81.8% 36 35.5 48.8
SUBFILE 2 0.1% 1 50.0% 36,232 36232.0 0.0
ID 1 0.1% 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 1.2% 4 23.5% 15 109.4 290.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 45 3.2% 24 53.3% 22 732.3 2230.9
Other indexes 0 0.0% 0 0.0% 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 182 15.3% 83 45.6% 44 1345.4 4141.4
Single 1,010 84.7% 515 51.0% 14 1332.0 5482.3
PRESENT commands, by type:
MARC 49.5%
OPAC 27.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w