MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 257 1,065
2-4 a.m. 144 953
4-6 a.m. 62 333
6-8 a.m. 103 417
8-10 a.m. 465 3,358
10-12 a.m. 1,210 4,956
12-2 p.m. 1,817 8,638
2-4 p.m. 2,046 9,223
4-6 p.m. 1,396 6,489
6-8 p.m. 1,048 7,896
8-10 p.m. 816 3,166
10-12 p.m. 627 2,278
__________ _____________ _________________
Total: 9,991 48,772
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 54
Irvine 2
Los Angeles 20
Riverside 1
San Diego 15
San Francisco 1
Santa Barbara 1
Santa Cruz 22
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,996
Searchlight 6,634
Other - UC 206
Other-Network UC 31
_____
9,991
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 25
Davis 9
Irvine 1
Los Angeles 76
Riverside 5
San Diego 36
San Francisco 0
Santa Barbara 0
Santa Cruz 3
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 46,792
Searchlight 346
Other - UC 1,367
Other-Network UC 111
_____
48,772
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 1.0
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
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 4:01
Longest session recorded (minutes:seconds) 175:44
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 696.4
Retrievals per search - standard deviation 10446
Percent of searches completed with 0 results 58.9%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 9,991 36.1%
PRESENT 9,679 35.0%
INIT or CLOSE 7,982 28.9%
OTHER 9 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 401 3.6% 301 75.1% 2 58.9 216.5
TITLE WORD 487 4.4% 280 57.5% 7 520.4 3117.7
EXACT TITLE 58 0.5% 53 91.4% 2 6.4 6.9
JOURNAL TITLE 121 1.1% 101 83.5% 11 8014.8 32541.0
EXACT JOURNAL 238 2.1% 41 17.2% 837 8063.2 12598.8
SUBJECT WORD 385 3.5% 266 69.1% 16 802.8 5229.0
EXACT SUBJECT 114 1.0% 30 26.3% 45 3382.3 12397.1
KEYWORD 8,405 75.8% 4,977 59.2% 10 1376.3 17115.9
DATE 118 1.1% 46 39.0% 17 554.8 2085.7
ADDED SINCE 23 0.2% 18 78.3% 10 16.6 21.2
PUB TYPE 37 0.3% 19 51.3% 9 52.8 102.6
SUBFILE 15 0.1% 7 46.7% 7 257.8 439.9
ID 9 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 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 100 0.9% 28 28.0% 21 440.3 1702.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 563 5.1% 187 33.2% 35 2707.6 12931.8
Other indexes 8 0.1% 5 62.5% 98 1392.7 2313.8
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 914 9.1% 380 41.6% 23 2005.9 10930.7
Single 9,077 90.9% 5,506 60.7% 10 1648.6 16897.5
PRESENT commands, by type:
MARC 49.3%
OPAC 29.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w