MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/27/02 through 05/03/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 92 463
2-4 a.m. 41 99
4-6 a.m. 6 11
6-8 a.m. 12 0
8-10 a.m. 88 962
10-12 a.m. 261 1,479
12-2 p.m. 357 1,916
2-4 p.m. 431 1,338
4-6 p.m. 339 2,255
6-8 p.m. 218 1,107
8-10 p.m. 241 879
10-12 p.m. 153 518
__________ _____________ _________________
Total: 2,239 11,027
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 89
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 4
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 582
Searchlight 1,485
Other - UC 76
Other-Network UC 1
_____
2,239
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 5
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 10,378
Searchlight 75
Other - UC 565
Other-Network UC 0
_____
11,027
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 0.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.2
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:40
Longest session recorded (minutes:seconds) 73:50
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 735.8
Retrievals per search - standard deviation 11326
Percent of searches completed with 0 results 60.3%
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 2,239 36.4%
PRESENT 2,142 34.8%
INIT or CLOSE 1,764 28.7%
OTHER 2 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 147 5.8% 123 83.7% 1 28.3 70.8
TITLE WORD 122 4.8% 68 55.7% 4 791.5 5639.2
EXACT TITLE 12 0.5% 9 75.0% 14 10.0 6.9
JOURNAL TITLE 20 0.8% 14 70.0% 44 117.5 152.1
EXACT JOURNAL 60 2.4% 7 11.7% 766 11233.5 18345.2
SUBJECT WORD 152 6.0% 114 75.0% 11 113.6 275.1
EXACT SUBJECT 19 0.8% 7 36.8% 36 1510.0 2914.4
KEYWORD 1,812 71.6% 1,102 60.8% 11 1391.8 19181.8
DATE 42 1.7% 11 26.2% 40 1028.1 2968.5
ADDED SINCE 6 0.2% 5 83.3% 12 12.0 0.0
PUB TYPE 4 0.2% 0 0.0% 31 43.0 46.2
SUBFILE 3 0.1% 3 100% 0 0.0 0.0
ID 6 0.2% 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 6 0.2% 1 16.7% 451 1835.8 2570.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 117 4.6% 37 31.6% 55 3766.2 9734.6
Other indexes 2 0.1% 1 50.0% 2 2.0 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 254 11.3% 133 52.4% 35 2768.3 8168.9
Single 1,985 88.7% 1,218 61.4% 9 1711.1 19019.5
PRESENT commands, by type:
MARC 50.3%
OPAC 26.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w