MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/21/01 through 04/27/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 75 2,601
2-4 a.m. 22 179
4-6 a.m. 8 227
6-8 a.m. 18 146
8-10 a.m. 149 1,657
10-12 a.m. 286 3,006
12-2 p.m. 363 4,637
2-4 p.m. 497 2,479
4-6 p.m. 355 5,312
6-8 p.m. 209 2,458
8-10 p.m. 149 1,608
10-12 p.m. 145 2,299
__________ _____________ _________________
Total: 2,276 26,609
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 5
Irvine 5
Los Angeles 0
Riverside 0
San Diego 69
San Francisco 0
Santa Barbara 0
Santa Cruz 4
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,043
Searchlight 1,036
Other - UC 109
Other-Network UC 4
_____
2,276
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 3
Irvine 2
Los Angeles 0
Riverside 0
San Diego 65
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 24,582
Searchlight 1,324
Other - UC 631
Other-Network UC 0
_____
26,609
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 2.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 7:16
Longest session recorded (minutes:seconds) 124:03
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1421.0
Retrievals per search - standard deviation 16722
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 2,276 25.7%
PRESENT 4,993 56.5%
INIT or CLOSE 1,567 17.7%
OTHER 4 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 100 3.7% 83 83.0% 2 5.2 9.3
TITLE WORD 198 7.3% 119 60.1% 9 299.2 1321.0
EXACT TITLE 14 0.5% 12 85.7% 132 132.0 185.3
JOURNAL TITLE 58 2.1% 37 63.8% 96 4177.8 9053.9
EXACT JOURNAL 114 4.2% 21 18.4% 1,190 8311.4 14042.6
SUBJECT WORD 133 4.9% 83 62.4% 8 143.2 442.4
EXACT SUBJECT 39 1.4% 7 17.9% 79 892.3 1456.6
KEYWORD 1,739 64.3% 867 49.9% 11 2655.2 26415.8
DATE 37 1.4% 10 27.0% 14 157.7 400.8
ADDED SINCE 14 0.5% 5 35.7% 21 34.7 42.6
PUB TYPE 3 0.1% 1 33.3% 1,121 1120.5 1318.8
SUBFILE 9 0.3% 5 55.6% 21 131.0 233.9
ID 3 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 5 0.2% 4 80.0% 95 95.0 0.0
ARTICLE 11 0.4% 1 9.1% 99 211.9 258.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 228 8.4% 68 29.8% 11 1477.8 6702.4
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 364 16.0% 147 40.4% 14 1130.8 5783.4
Single 1,912 84.0% 996 52.1% 13 3262.9 26103.8
PRESENT commands, by type:
MARC 45.3%
OPAC 23.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w