MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/01 through 03/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 248 9,081
2-4 a.m. 112 1,751
4-6 a.m. 45 1,163
6-8 a.m. 70 105
8-10 a.m. 462 4,709
10-12 a.m. 1,032 9,211
12-2 p.m. 1,334 13,463
2-4 p.m. 1,618 12,842
4-6 p.m. 1,246 13,745
6-8 p.m. 791 5,867
8-10 p.m. 577 7,160
10-12 p.m. 330 8,113
__________ _____________ _________________
Total: 7,865 87,210
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 21
Davis 40
Irvine 16
Los Angeles 82
Riverside 5
San Diego 223
San Francisco 19
Santa Barbara 16
Santa Cruz 0
Lawrence Berkeley 2
Lawrence Livermore 3
Los Alamos 0
MELWEB 3,661
Searchlight 3,397
Other - UC 350
Other-Network UC 30
_____
7,865
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 113
Davis 0
Irvine 64
Los Angeles 250
Riverside 0
San Diego 50
San Francisco 179
Santa Barbara 49
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 78,902
Searchlight 5,486
Other - UC 2,004
Other-Network UC 112
_____
87,210
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 2.2
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) 7:15
Longest session recorded (minutes:seconds) 143:43
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 892.4
Retrievals per search - standard deviation 6843.1
Percent of searches completed with 0 results 56.1%
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 7,865 27.1%
PRESENT 16,100 55.4%
INIT or CLOSE 5,085 17.5%
OTHER 8 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 632 6.8% 511 80.9% 3 94.4 330.0
TITLE WORD 961 10.3% 622 64.7% 7 298.7 2028.9
EXACT TITLE 79 0.8% 61 77.2% 1 100.5 366.3
JOURNAL TITLE 189 2.0% 149 78.8% 195 5138.8 17087.6
EXACT JOURNAL 260 2.8% 41 15.8% 2,316 8767.1 13370.7
SUBJECT WORD 559 6.0% 376 67.3% 10 1597.0 16016.7
EXACT SUBJECT 176 1.9% 60 34.1% 18 1020.3 2985.3
KEYWORD 5,497 59.1% 2,991 54.4% 14 1745.4 9968.0
DATE 132 1.4% 67 50.8% 24 263.3 1100.2
ADDED SINCE 50 0.5% 18 36.0% 10 28.3 43.6
PUB TYPE 35 0.4% 19 54.3% 185 381.6 607.3
SUBFILE 14 0.2% 11 78.6% 6 6.3 3.5
ID 9 0.1% 0 0.0% 1 1.0 0.0
ISSN 4 0.0% 4 100% 0 0.0 0.0
SIC 3 0.0% 0 0.0% 102 1031.0 1689.4
ILLUS 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 82 0.9% 36 43.9% 170 2320.8 9272.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 611 6.6% 234 38.3% 19 1567.3 12105.2
Other indexes 12 0.1% 2 16.7% 205 276.5 256.7
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 1,264 16.1% 679 53.7% 18 1232.2 10080.1
Single 6,601 83.9% 3,730 56.5% 14 2193.5 10232.1
PRESENT commands, by type:
MARC 43.1%
OPAC 32.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w