MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 07/28/01 through 08/03/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 28 1,837
2-4 a.m. 5 0
4-6 a.m. 10 105
6-8 a.m. 7 1
8-10 a.m. 30 322
10-12 a.m. 144 952
12-2 p.m. 183 1,573
2-4 p.m. 199 2,533
4-6 p.m. 125 1,801
6-8 p.m. 116 692
8-10 p.m. 25 355
10-12 p.m. 13 118
__________ _____________ _________________
Total: 885 10,289
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 5
Davis 5
Irvine 0
Los Angeles 54
Riverside 2
San Diego 7
San Francisco 7
Santa Barbara 2
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 275
Other - UC 528
Other-Network UC 0
_____
885
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 127
Davis 11
Irvine 0
Los Angeles 23
Riverside 0
San Diego 0
San Francisco 6
Santa Barbara 121
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 10,001
Other-Network UC 0
_____
10,289
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 2.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 8:38
Longest session recorded (minutes:seconds) 87:52
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1962.9
Retrievals per search - standard deviation 24684
Percent of searches completed with 0 results 51.1%
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 885 26.0%
PRESENT 2,048 60.1%
INIT or CLOSE 473 13.9%
OTHER 3 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 110 10.2% 92 83.6% 32 349.8 994.6
TITLE WORD 99 9.2% 50 50.5% 29 869.2 4856.9
EXACT TITLE 14 1.3% 6 42.9% 1 1.9 1.8
JOURNAL TITLE 21 1.9% 16 76.2% 535 1374.8 1640.0
EXACT JOURNAL 43 4.0% 5 11.6% 1,499 8110.9 12932.2
SUBJECT WORD 79 7.3% 58 73.4% 11 1804.8 4135.0
EXACT SUBJECT 16 1.5% 1 6.3% 98 3498.9 7142.0
KEYWORD 575 53.2% 286 49.7% 19 4487.4 42705.0
DATE 23 2.1% 12 52.2% 25 30.0 20.8
ADDED SINCE 11 1.0% 6 54.5% 4 33.4 63.2
PUB TYPE 2 0.2% 2 100% 0 0.0 0.0
SUBFILE 1 0.1% 1 100% 0 0.0 0.0
ID 5 0.5% 0 0.0% 1 1.0 0.0
ISSN 1 0.1% 1 100% 0 0.0 0.0
SIC 33 3.1% 8 24.2% 7 57.8 127.2
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 12 1.1% 3 25.0% 99 632.1 1106.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 35 3.2% 15 42.9% 10 593.6 1166.4
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 170 19.2% 95 55.9% 11 440.3 1783.6
Single 715 80.8% 357 49.9% 31 4760.2 38664.3
PRESENT commands, by type:
MARC 55.6%
OPAC 18.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w