MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/02/01 through 06/08/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 60 1,690
2-4 a.m. 23 122
4-6 a.m. 4 71
6-8 a.m. 27 260
8-10 a.m. 89 1,140
10-12 a.m. 245 1,355
12-2 p.m. 283 2,907
2-4 p.m. 378 2,768
4-6 p.m. 279 4,305
6-8 p.m. 200 1,514
8-10 p.m. 152 1,874
10-12 p.m. 132 1,358
__________ _____________ _________________
Total: 1,872 19,364
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 1
Irvine 4
Los Angeles 27
Riverside 0
San Diego 19
San Francisco 12
Santa Barbara 4
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 960
Searchlight 810
Other - UC 24
Other-Network UC 4
_____
1,872
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 38
Davis 3
Irvine 35
Los Angeles 5
Riverside 0
San Diego 0
San Francisco 3
Santa Barbara 4
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 18,391
Searchlight 788
Other - UC 97
Other-Network UC 0
_____
19,364
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 1.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:36
Longest session recorded (minutes:seconds) 110:29
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1084.6
Retrievals per search - standard deviation 8931.6
Percent of searches completed with 0 results 54.9%
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 1,872 28.1%
PRESENT 3,578 53.6%
INIT or CLOSE 1,218 18.3%
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 127 5.7% 78 61.4% 3 120.0 301.4
TITLE WORD 163 7.3% 87 53.4% 5 289.0 739.6
EXACT TITLE 14 0.6% 11 78.6% 1 1.0 0.0
JOURNAL TITLE 53 2.4% 25 47.2% 79 519.4 1110.9
EXACT JOURNAL 87 3.9% 15 17.2% 3,450 10017.9 14534.2
SUBJECT WORD 117 5.3% 71 60.7% 25 1492.7 4866.0
EXACT SUBJECT 49 2.2% 15 30.6% 24 307.3 675.5
KEYWORD 1,374 61.9% 787 57.3% 15 2076.1 14671.2
DATE 54 2.4% 19 35.2% 16 223.9 900.9
ADDED SINCE 13 0.6% 10 76.9% 11 38.0 50.3
PUB TYPE 12 0.5% 4 33.3% 3 19.8 45.8
SUBFILE 4 0.2% 1 25.0% 5 13.0 17.4
ID 1 0.0% 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% 0 0.0% 141 141.0 0.0
ARTICLE 17 0.8% 7 41.2% 46 255.8 380.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 130 5.9% 42 32.3% 9 3553.0 14428.4
Other indexes 3 0.1% 3 100% 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 281 15.0% 117 41.6% 14 2156.9 10853.2
Single 1,591 85.0% 910 57.2% 24 2461.9 13685.9
PRESENT commands, by type:
MARC 44.6%
OPAC 31.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w