MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 08/01/00 through 08/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 79 2,085
2-4 a.m. 41 1,658
4-6 a.m. 12 380
6-8 a.m. 45 705
8-10 a.m. 327 2,104
10-12 a.m. 868 11,304
12-2 p.m. 888 10,533
2-4 p.m. 1,113 10,575
4-6 p.m. 781 5,914
6-8 p.m. 352 3,814
8-10 p.m. 185 921
10-12 p.m. 102 1,180
__________ _____________ _________________
Total: 4,793 51,173
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 115
Irvine 1
Los Angeles 44
Riverside 4
San Diego 393
San Francisco 16
Santa Barbara 5
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 8
Los Alamos 0
MELWEB 2,104
Searchlight 1,785
Other - UC 302
Other-Network UC 10
_____
4,793
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 37
Davis 55
Irvine 1
Los Angeles 85
Riverside 9
San Diego 24
San Francisco 24
Santa Barbara 11
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 52
Los Alamos 0
MELWEB 43,334
Searchlight 4,123
Other - UC 3,391
Other-Network UC 27
_____
51,173
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.4
Standard deviation in seconds 2.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 5:34
Longest session recorded (minutes:seconds) 120:34
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 926.7
Retrievals per search - standard deviation 11920
Percent of searches completed with 0 results 53.2%
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 4,793 27.1%
PRESENT 9,504 53.8%
INIT or CLOSE 3,334 18.9%
OTHER 24 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 464 8.3% 392 84.5% 5 47.2 102.6
TITLE WORD 548 9.9% 327 59.7% 21 915.2 4452.2
EXACT TITLE 36 0.6% 29 80.6% 7 95.0 177.3
JOURNAL TITLE 110 2.0% 78 70.9% 96 3088.3 13799.2
EXACT JOURNAL 106 1.9% 27 25.5% 2,866 9527.8 12497.4
SUBJECT WORD 207 3.7% 116 56.0% 13 364.6 1236.3
EXACT SUBJECT 112 2.0% 27 24.1% 31 1372.6 3841.5
KEYWORD 3,448 62.0% 1,767 51.2% 21 1924.0 19625.4
DATE 164 3.0% 85 51.8% 21 91.9 140.6
ADDED SINCE 57 1.0% 37 64.9% 12 33.3 39.3
PUB TYPE 24 0.4% 17 70.8% 32 115.3 249.8
SUBFILE 6 0.1% 4 66.7% 6 6.0 2.8
ID 22 0.4% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 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 46 0.8% 14 30.4% 51 280.4 466.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 193 3.5% 84 43.5% 57 1843.7 9403.7
Other indexes 12 0.2% 11 91.7% 800 800.0 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 621 13.0% 360 58.0% 27 815.6 6124.2
Single 4,172 87.0% 2,190 52.5% 23 2133.5 18335.5
PRESENT commands, by type:
MARC 48.6%
OPAC 28.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w