MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/09/02 through 02/15/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 38 198
2-4 a.m. 42 314
4-6 a.m. 34 290
6-8 a.m. 16 20
8-10 a.m. 98 274
10-12 a.m. 210 1,014
12-2 p.m. 233 1,236
2-4 p.m. 308 1,699
4-6 p.m. 262 1,497
6-8 p.m. 146 1,594
8-10 p.m. 109 905
10-12 p.m. 90 1,007
__________ _____________ _________________
Total: 1,586 10,048
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 4
Davis 4
Irvine 0
Los Angeles 5
Riverside 6
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 698
Searchlight 724
Other - UC 138
Other-Network UC 7
_____
1,586
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 5
Davis 2
Irvine 0
Los Angeles 19
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 9,416
Searchlight 86
Other - UC 517
Other-Network UC 3
_____
10,048
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:06
Average session length (minutes:seconds) 7:04
Longest session recorded (minutes:seconds) 68:49
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1030.5
Retrievals per search - standard deviation 8810.7
Percent of searches completed with 0 results 51.8%
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 1,586 33.4%
PRESENT 2,006 42.2%
INIT or CLOSE 1,156 24.3%
OTHER 5 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 83 4.7% 57 68.7% 8 166.2 444.6
TITLE WORD 123 7.0% 76 61.8% 11 309.8 1089.0
EXACT TITLE 18 1.0% 17 94.4% 1 1.0 0.0
JOURNAL TITLE 37 2.1% 30 81.1% 9 5.6 4.3
EXACT JOURNAL 115 6.5% 7 6.1% 2,468 6396.6 11755.6
SUBJECT WORD 106 6.0% 69 65.1% 9 349.4 837.8
EXACT SUBJECT 16 0.9% 5 31.3% 5 198.0 597.7
KEYWORD 1,146 64.8% 602 52.5% 27 1673.7 13832.6
DATE 15 0.8% 12 80.0% 76 83.3 12.7
ADDED SINCE 5 0.3% 4 80.0% 15 15.0 0.0
PUB TYPE 2 0.1% 2 100% 0 0.0 0.0
SUBFILE 1 0.1% 1 100% 0 0.0 0.0
ID 5 0.3% 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 1 0.1% 0 0.0% 53 53.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 93 5.3% 39 41.9% 20 1862.8 7163.7
Other indexes 3 0.2% 2 66.7% 1 1.0 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 161 10.2% 89 55.3% 10 1404.4 6241.0
Single 1,425 89.8% 733 51.4% 33 2215.8 13091.1
PRESENT commands, by type:
MARC 49.7%
OPAC 25.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w