MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/08/01 through 09/14/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 13 219
2-4 a.m. 9 14
4-6 a.m. 2 0
6-8 a.m. 5 1
8-10 a.m. 53 3,061
10-12 a.m. 162 1,311
12-2 p.m. 122 507
2-4 p.m. 161 2,805
4-6 p.m. 159 2,728
6-8 p.m. 50 663
8-10 p.m. 42 417
10-12 p.m. 28 537
__________ _____________ _________________
Total: 806 12,263
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 6
Davis 33
Irvine 4
Los Angeles 25
Riverside 0
San Diego 6
San Francisco 0
Santa Barbara 2
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 267
Other - UC 458
Other-Network UC 4
_____
806
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 1
Davis 2
Irvine 0
Los Angeles 7
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 11,967
Other-Network UC 282
_____
12,263
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 2.6
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) 0:11
Average session length (minutes:seconds) 9:22
Longest session recorded (minutes:seconds) 69:34
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1116.2
Retrievals per search - standard deviation 8618.6
Percent of searches completed with 0 results 45.8%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 806 22.0%
PRESENT 2,377 64.9%
INIT or CLOSE 478 13.1%
OTHER 1 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 112 11.5% 85 75.9% 7 81.4 166.1
TITLE WORD 137 14.1% 77 56.2% 19 336.6 783.6
EXACT TITLE 10 1.0% 6 60.0% 2 455.8 908.2
JOURNAL TITLE 33 3.4% 26 78.8% 1,137 1529.6 1469.0
EXACT JOURNAL 52 5.3% 9 17.3% 5,635 9397.4 11369.5
SUBJECT WORD 78 8.0% 44 56.4% 24 268.5 506.7
EXACT SUBJECT 25 2.6% 6 24.0% 24 243.4 432.5
KEYWORD 426 43.8% 162 38.0% 30 1698.2 13887.2
DATE 41 4.2% 27 65.9% 88 131.4 157.1
ADDED SINCE 10 1.0% 7 70.0% 8 6.0 4.4
PUB TYPE 1 0.1% 1 100% 0 0.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 1 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 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 19 2.0% 2 10.5% 90 184.1 339.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 27 2.8% 14 51.9% 60 5291.5 14166.1
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 125 15.5% 72 57.6% 27 1369.0 7170.9
Single 681 84.5% 297 43.6% 32 2154.0 12118.4
PRESENT commands, by type:
MARC 56.2%
OPAC 18.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w