MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/00 through 06/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 157 2,868
2-4 a.m. 73 1,544
4-6 a.m. 35 1,919
6-8 a.m. 63 654
8-10 a.m. 353 2,073
10-12 a.m. 1,101 10,769
12-2 p.m. 1,049 10,348
2-4 p.m. 1,180 12,371
4-6 p.m. 780 7,828
6-8 p.m. 419 7,413
8-10 p.m. 337 4,775
10-12 p.m. 230 3,034
__________ _____________ _________________
Total: 5,777 65,596
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 14
Irvine 3
Los Angeles 6
Riverside 7
San Diego 569
San Francisco 9
Santa Barbara 8
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 4
Los Alamos 0
MELWEB 3,717
Searchlight 1,067
Other - UC 338
Other-Network UC 15
_____
5,777
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 22
Davis 2
Irvine 1
Los Angeles 1
Riverside 609
San Diego 22
San Francisco 13
Santa Barbara 27
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 3
Los Alamos 0
MELWEB 59,504
Searchlight 3,803
Other - UC 1,483
Other-Network UC 106
_____
65,596
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.8
Standard deviation in seconds 1.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 2.0
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 6:55
Longest session recorded (minutes:seconds) 156:52
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 807.3
Retrievals per search - standard deviation 8511.5
Percent of searches completed with 0 results 50.3%
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 5,777 25.9%
PRESENT 12,746 57.0%
INIT or CLOSE 3,792 17.0%
OTHER 28 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 410 6.1% 303 73.9% 3 54.6 188.6
TITLE WORD 571 8.5% 285 49.9% 18 899.3 4692.6
EXACT TITLE 63 0.9% 50 79.4% 1 69.7 157.0
JOURNAL TITLE 188 2.8% 145 77.1% 93 1040.3 2808.5
EXACT JOURNAL 117 1.7% 35 29.9% 1,254 7832.3 12515.5
SUBJECT WORD 378 5.6% 221 58.5% 13 1703.7 7737.0
EXACT SUBJECT 155 2.3% 32 20.6% 19 659.0 2827.2
KEYWORD 4,179 61.9% 2,023 48.4% 18 1556.0 13301.2
DATE 120 1.8% 36 30.0% 27 472.3 3310.4
ADDED SINCE 49 0.7% 26 53.1% 7 27.4 40.7
PUB TYPE 34 0.5% 14 41.2% 7 74.5 186.7
SUBFILE 10 0.1% 7 70.0% 243 599.7 835.2
ID 3 0.0% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 7 0.1% 2 28.6% 585 3774.4 7636.1
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 116 1.7% 18 15.5% 86 880.8 3484.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 346 5.1% 127 36.7% 43 1140.1 5303.6
Other indexes 8 0.1% 3 37.5% 585 3774.4 7636.1
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 816 14.1% 346 42.4% 30 782.1 4051.1
Single 4,961 85.9% 2,561 51.6% 18 1790.0 13017.7
PRESENT commands, by type:
MARC 47.7%
OPAC 30.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w