MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/12/02 through 01/18/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 19 290
2-4 a.m. 7 58
4-6 a.m. 15 275
6-8 a.m. 18 363
8-10 a.m. 47 46
10-12 a.m. 171 1,518
12-2 p.m. 211 1,503
2-4 p.m. 252 727
4-6 p.m. 140 626
6-8 p.m. 117 259
8-10 p.m. 139 893
10-12 p.m. 76 88
__________ _____________ _________________
Total: 1,212 6,646
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 5
Irvine 0
Los Angeles 3
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 467
Searchlight 707
Other - UC 15
Other-Network UC 13
_____
1,212
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 26
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 6,389
Searchlight 31
Other - UC 149
Other-Network UC 51
_____
6,646
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 3.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 5:38
Longest session recorded (minutes:seconds) 119:13
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1065.7
Retrievals per search - standard deviation 11421
Percent of searches completed with 0 results 59.7%
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 1,212 35.0%
PRESENT 1,314 37.9%
INIT or CLOSE 931 26.9%
OTHER 6 0.2%
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 52 3.8% 40 76.9% 4 440.7 1252.9
TITLE WORD 114 8.4% 69 60.5% 4 33.1 75.2
EXACT TITLE 14 1.0% 12 85.7% 1 1.0 0.0
JOURNAL TITLE 27 2.0% 25 92.6% 1,731 1730.5 1796.8
EXACT JOURNAL 57 4.2% 12 21.1% 2,277 5944.9 9540.3
SUBJECT WORD 43 3.2% 32 74.4% 35 636.8 1831.8
EXACT SUBJECT 15 1.1% 8 53.3% 1 6917.3 17436.2
KEYWORD 920 67.5% 553 60.1% 12 2611.7 20178.2
DATE 16 1.2% 8 50.0% 169 2231.4 4695.3
ADDED SINCE 9 0.7% 8 88.9% 8 8.0 0.0
PUB TYPE 5 0.4% 4 80.0% 1 1.0 0.0
SUBFILE 4 0.3% 4 100% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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 4 0.3% 1 25.0% 117 183.0 185.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 82 6.0% 41 50.0% 19 907.8 2389.7
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 122 10.1% 69 56.6% 28 793.7 2152.1
Single 1,090 89.9% 654 60.0% 17 2866.1 18906.2
PRESENT commands, by type:
MARC 48.6%
OPAC 36.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w