MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/01 through 12/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 112 734
2-4 a.m. 112 1,453
4-6 a.m. 165 1,230
6-8 a.m. 89 492
8-10 a.m. 161 1,042
10-12 a.m. 404 3,080
12-2 p.m. 536 3,842
2-4 p.m. 698 3,664
4-6 p.m. 516 2,127
6-8 p.m. 287 2,422
8-10 p.m. 225 1,502
10-12 p.m. 140 368
__________ _____________ _________________
Total: 3,445 21,956
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 43
Irvine 0
Los Angeles 7
Riverside 4
San Diego 209
San Francisco 1
Santa Barbara 4
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,502
Other - UC 1,666
Other-Network UC 9
_____
3,445
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 122
Irvine 0
Los Angeles 0
Riverside 0
San Diego 38
San Francisco 0
Santa Barbara 6
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 21,696
Other-Network UC 94
_____
21,956
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 0.6
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) 0:08
Average session length (minutes:seconds) 6:29
Longest session recorded (minutes:seconds) 95:46
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 905.0
Retrievals per search - standard deviation 9758.7
Percent of searches completed with 0 results 52.9%
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 3,445 33.6%
PRESENT 4,278 41.8%
INIT or CLOSE 2,511 24.5%
OTHER 4 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 212 5.5% 156 73.6% 10 95.4 290.7
TITLE WORD 376 9.8% 209 55.6% 10 567.4 3626.6
EXACT TITLE 20 0.5% 17 85.0% 6 7.3 7.1
JOURNAL TITLE 57 1.5% 49 86.0% 74 3834.5 10655.1
EXACT JOURNAL 246 6.4% 18 7.3% 1,991 7313.2 10906.9
SUBJECT WORD 161 4.2% 98 60.9% 6 362.4 2135.5
EXACT SUBJECT 34 0.9% 8 23.5% 36 1504.5 4093.5
KEYWORD 2,438 63.6% 1,335 54.8% 14 1158.5 16127.0
DATE 33 0.9% 12 36.4% 8 37.4 51.0
ADDED SINCE 27 0.7% 16 59.3% 7 10.2 11.4
PUB TYPE 18 0.5% 5 27.8% 3 46.1 132.9
SUBFILE 2 0.1% 1 50.0% 461 461.0 0.0
ID 4 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 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 64 1.7% 4 6.3% 22 1013.2 3872.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 133 3.5% 54 40.6% 28 1103.7 5252.1
Other indexes 10 0.3% 7 70.0% 449 449.0 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 338 9.8% 150 44.4% 15 795.0 4055.7
Single 3,107 90.2% 1,672 53.8% 19 2068.4 14972.4
PRESENT commands, by type:
MARC 51.4%
OPAC 25.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w