MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/01 through 12/07/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 55 183
2-4 a.m. 57 344
4-6 a.m. 43 418
6-8 a.m. 20 153
8-10 a.m. 53 150
10-12 a.m. 157 285
12-2 p.m. 264 1,261
2-4 p.m. 303 1,954
4-6 p.m. 328 1,530
6-8 p.m. 187 1,472
8-10 p.m. 141 658
10-12 p.m. 81 234
__________ _____________ _________________
Total: 1,689 8,642
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 25
Irvine 0
Los Angeles 4
Riverside 4
San Diego 6
San Francisco 0
Santa Barbara 2
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 809
Other - UC 839
Other-Network UC 0
_____
1,689
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 106
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 8,536
Other-Network UC 0
_____
8,642
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 0.7
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
_________________________________________
Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 6:20
Longest session recorded (minutes:seconds) 57:36
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 531.7
Retrievals per search - standard deviation 3476.5
Percent of searches completed with 0 results 57.2%
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 1,689 35.8%
PRESENT 1,864 39.5%
INIT or CLOSE 1,161 24.6%
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 96 5.1% 73 76.0% 8 44.7 83.8
TITLE WORD 205 10.8% 119 58.0% 7 95.1 316.5
EXACT TITLE 12 0.6% 11 91.7% 15 15.0 0.0
JOURNAL TITLE 16 0.8% 14 87.5% 15,107 15106.5 21351.1
EXACT JOURNAL 63 3.3% 3 4.8% 2,860 9095.0 11915.8
SUBJECT WORD 102 5.4% 69 67.6% 5 149.3 635.9
EXACT SUBJECT 5 0.3% 1 20.0% 31 5132.0 10222.0
KEYWORD 1,230 65.0% 704 57.2% 10 546.2 3388.2
DATE 19 1.0% 7 36.8% 39 45.6 47.5
ADDED SINCE 7 0.4% 5 71.4% 4 4.0 4.2
PUB TYPE 8 0.4% 2 25.0% 17 92.3 193.6
SUBFILE 1 0.1% 1 100% 0 0.0 0.0
ID 3 0.2% 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 0.1% 1 100% 0 0.0 0.0
ARTICLE 24 1.3% 3 12.5% 18 615.8 2283.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 94 5.0% 36 38.3% 28 1469.5 6101.7
Other indexes 7 0.4% 4 57.1% 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 177 10.5% 77 43.5% 15 992.4 4779.6
Single 1,512 89.5% 889 58.8% 11 1282.1 5303.4
PRESENT commands, by type:
MARC 54.7%
OPAC 27.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w