MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/24/01 through 03/02/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 52 843
2-4 a.m. 26 20
4-6 a.m. 6 4
6-8 a.m. 29 30
8-10 a.m. 125 749
10-12 a.m. 300 2,711
12-2 p.m. 416 4,016
2-4 p.m. 437 3,306
4-6 p.m. 410 8,719
6-8 p.m. 217 2,666
8-10 p.m. 228 1,992
10-12 p.m. 150 2,470
__________ _____________ _________________
Total: 2,396 27,526
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 15
Irvine 16
Los Angeles 17
Riverside 11
San Diego 38
San Francisco 0
Santa Barbara 2
Santa Cruz 3
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,189
Searchlight 992
Other - UC 109
Other-Network UC 3
_____
2,396
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 53
Irvine 64
Los Angeles 0
Riverside 29
San Diego 19
San Francisco 0
Santa Barbara 17
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 25,632
Searchlight 740
Other - UC 957
Other-Network UC 15
_____
27,526
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 3.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:47
Longest session recorded (minutes:seconds) 120:59
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 694.5
Retrievals per search - standard deviation 5019.4
Percent of searches completed with 0 results 54.0%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 2,396 25.8%
PRESENT 5,378 57.9%
INIT or CLOSE 1,517 16.3%
OTHER 3 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 178 6.2% 126 70.8% 7 53.1 122.3
TITLE WORD 250 8.7% 151 60.4% 9 169.0 681.8
EXACT TITLE 29 1.0% 24 82.8% 585 643.8 657.8
JOURNAL TITLE 43 1.5% 38 88.4% 201 903.8 1150.2
EXACT JOURNAL 64 2.2% 17 26.6% 6,453 10643.6 13981.6
SUBJECT WORD 194 6.8% 123 63.4% 26 152.4 471.7
EXACT SUBJECT 51 1.8% 17 33.3% 15 2782.0 7559.3
KEYWORD 1,700 59.3% 880 51.8% 14 1257.9 7300.8
DATE 39 1.4% 16 41.0% 19 78.3 185.2
ADDED SINCE 13 0.5% 5 38.5% 4 17.5 31.8
PUB TYPE 6 0.2% 4 66.7% 201 200.5 268.0
SUBFILE 7 0.2% 5 71.4% 7 7.0 5.7
ID 1 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 1 0.0% 0 0.0% 11 11.0 0.0
ARTICLE 21 0.7% 4 19.0% 103 5136.4 15054.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 270 9.4% 102 37.8% 17 1707.0 7423.0
Other indexes 2 0.1% 0 0.0% 341 341.0 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 417 17.4% 186 44.6% 16 1624.0 7563.3
Single 1,979 82.6% 1,108 56.0% 16 1479.7 7257.5
PRESENT commands, by type:
MARC 46.4%
OPAC 35.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w