MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/24/01 through 03/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 28 1,844
2-4 a.m. 20 1,167
4-6 a.m. 5 113
6-8 a.m. 4 1
8-10 a.m. 59 405
10-12 a.m. 131 2,342
12-2 p.m. 165 948
2-4 p.m. 178 1,001
4-6 p.m. 133 406
6-8 p.m. 56 39
8-10 p.m. 41 396
10-12 p.m. 27 431
__________ _____________ _________________
Total: 847 9,093
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 7
Davis 4
Irvine 0
Los Angeles 56
Riverside 0
San Diego 68
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 279
Searchlight 390
Other - UC 36
Other-Network UC 6
_____
847
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 45
Davis 0
Irvine 0
Los Angeles 230
Riverside 0
San Diego 31
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,933
Searchlight 2,651
Other - UC 156
Other-Network UC 47
_____
9,093
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 2.9
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) 5:35
Longest session recorded (minutes:seconds) 143:43
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 569.3
Retrievals per search - standard deviation 3394.5
Percent of searches completed with 0 results 59.5%
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 847 28.2%
PRESENT 1,609 53.5%
INIT or CLOSE 547 18.2%
OTHER 3 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 152 14.5% 138 90.8% 5 158.6 416.6
TITLE WORD 146 13.9% 122 83.6% 7 80.2 200.0
EXACT TITLE 5 0.5% 3 60.0% 1 1.0 0.0
JOURNAL TITLE 18 1.7% 15 83.3% 82 127.0 145.8
EXACT JOURNAL 42 4.0% 2 4.8% 620 4463.7 8091.8
SUBJECT WORD 48 4.6% 29 60.4% 20 86.5 256.8
EXACT SUBJECT 10 1.0% 1 10.0% 2 57.2 109.0
KEYWORD 533 50.7% 292 54.8% 20 1231.7 5124.1
DATE 35 3.3% 23 65.7% 83 959.8 2436.3
ADDED SINCE 12 1.1% 3 25.0% 20 47.8 57.9
PUB TYPE 7 0.7% 3 42.9% 3 475.0 945.3
SUBFILE 1 0.1% 1 100% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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 10 1.0% 2 20.0% 385 409.5 375.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 26 2.5% 10 38.5% 127 3423.7 10359.6
Other indexes 5 0.5% 0 0.0% 205 205.0 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 185 21.8% 133 71.9% 45 1374.1 5909.5
Single 662 78.2% 371 56.0% 20 1411.5 5107.1
PRESENT commands, by type:
MARC 39.3%
OPAC 45.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w