MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/20/01 through 10/26/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 47 1,152
2-4 a.m. 16 194
4-6 a.m. 9 11
6-8 a.m. 15 180
8-10 a.m. 83 773
10-12 a.m. 241 1,821
12-2 p.m. 316 3,714
2-4 p.m. 405 4,096
4-6 p.m. 247 2,482
6-8 p.m. 170 1,379
8-10 p.m. 141 1,382
10-12 p.m. 54 192
__________ _____________ _________________
Total: 1,744 17,376
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 1
Irvine 2
Los Angeles 12
Riverside 14
San Diego 10
San Francisco 3
Santa Barbara 6
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 734
Other - UC 960
Other-Network UC 1
_____
1,744
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 0
Los Angeles 0
Riverside 0
San Diego 178
San Francisco 81
Santa Barbara 87
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 17,000
Other-Network UC 30
_____
17,376
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 2.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.1
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 7:51
Longest session recorded (minutes:seconds) 145:41
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1597.8
Retrievals per search - standard deviation 17180
Percent of searches completed with 0 results 52.6%
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 1,744 26.9%
PRESENT 3,607 55.6%
INIT or CLOSE 1,123 17.3%
OTHER 8 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 115 5.6% 81 70.4% 10 111.6 226.0
TITLE WORD 230 11.1% 101 43.9% 22 1075.8 5583.1
EXACT TITLE 21 1.0% 16 76.2% 1 2.0 1.7
JOURNAL TITLE 35 1.7% 29 82.9% 1,284 8747.2 16430.0
EXACT JOURNAL 46 2.2% 5 10.9% 2,228 16287.9 30318.6
SUBJECT WORD 139 6.7% 93 66.9% 19 104.0 164.1
EXACT SUBJECT 42 2.0% 6 14.3% 17 1096.3 3808.6
KEYWORD 1,171 56.7% 631 53.9% 16 3482.3 29156.2
DATE 37 1.8% 15 40.5% 16 75.0 102.9
ADDED SINCE 11 0.5% 5 45.5% 22 35.2 39.2
PUB TYPE 7 0.3% 4 57.1% 1 1.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 8 0.4% 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 16 0.8% 5 31.3% 29 83.0 179.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 185 9.0% 66 35.7% 38 3622.7 18076.4
Other indexes 1 0.0% 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 270 15.5% 116 43.0% 30 2814.6 15945.2
Single 1,474 84.5% 801 54.3% 15 3496.4 26461.6
PRESENT commands, by type:
MARC 50.5%
OPAC 28.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w