MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 07/14/01 through 07/20/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 39 328
2-4 a.m. 9 1,706
4-6 a.m. 4 1,296
6-8 a.m. 17 108
8-10 a.m. 56 193
10-12 a.m. 139 1,161
12-2 p.m. 163 1,198
2-4 p.m. 219 1,361
4-6 p.m. 113 1,868
6-8 p.m. 72 725
8-10 p.m. 23 193
10-12 p.m. 42 121
__________ _____________ _________________
Total: 896 10,258
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 3
Irvine 1
Los Angeles 2
Riverside 2
San Diego 4
San Francisco 0
Santa Barbara 4
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2
Searchlight 427
Other - UC 450
Other-Network UC 1
_____
896
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 161
Irvine 102
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 106
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 9,888
Other-Network UC 1
_____
10,258
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 1.4
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) 0:09
Average session length (minutes:seconds) 6:43
Longest session recorded (minutes:seconds) 72:05
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1370.6
Retrievals per search - standard deviation 17528
Percent of searches completed with 0 results 54.4%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 896 25.4%
PRESENT 1,995 56.5%
INIT or CLOSE 640 18.1%
OTHER 2 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 42 4.2% 31 73.8% 2 70.4 155.6
TITLE WORD 63 6.4% 33 52.4% 10 662.8 2679.7
EXACT TITLE 7 0.7% 6 85.7% 1 1.0 0.0
JOURNAL TITLE 16 1.6% 14 87.5% 730 730.0 1018.2
EXACT JOURNAL 49 4.9% 4 8.2% 1,703 7423.2 9740.5
SUBJECT WORD 61 6.2% 39 63.9% 24 468.6 1222.1
EXACT SUBJECT 13 1.3% 1 7.7% 49 8334.7 21024.9
KEYWORD 668 67.4% 371 55.5% 10 2575.6 29756.6
DATE 6 0.6% 2 33.3% 58 58.0 61.4
ADDED SINCE 12 1.2% 8 66.7% 104 98.5 89.9
PUB TYPE 3 0.3% 1 33.3% 58 58.0 80.6
SUBFILE 4 0.4% 3 75.0% 6 6.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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 6 0.6% 1 16.7% 56 47.6 44.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 40 4.0% 16 40.0% 19 604.2 1761.5
Other indexes 1 0.1% 1 100% 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 78 8.7% 37 47.4% 10 449.8 1434.8
Single 818 91.3% 450 55.0% 14 3287.1 27253.9
PRESENT commands, by type:
MARC 45.0%
OPAC 38.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w