MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/20/01 through 01/26/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 57 1,031
2-4 a.m. 25 1,655
4-6 a.m. 4 1,383
6-8 a.m. 22 478
8-10 a.m. 80 824
10-12 a.m. 276 2,205
12-2 p.m. 366 4,299
2-4 p.m. 449 5,825
4-6 p.m. 349 2,785
6-8 p.m. 220 2,451
8-10 p.m. 139 1,932
10-12 p.m. 59 295
__________ _____________ _________________
Total: 2,046 25,163
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 2
Davis 2
Irvine 2
Los Angeles 1
Riverside 2
San Diego 15
San Francisco 3
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 964
Searchlight 974
Other - UC 77
Other-Network UC 3
_____
2,046
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 1
Irvine 1
Los Angeles 1
Riverside 44
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 21,165
Searchlight 3,156
Other - UC 707
Other-Network UC 88
_____
25,163
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 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:09
Average session length (minutes:seconds) 6:57
Longest session recorded (minutes:seconds) 76:03
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1040.9
Retrievals per search - standard deviation 12091
Percent of searches completed with 0 results 49.0%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 2,046 24.9%
PRESENT 4,812 58.5%
INIT or CLOSE 1,371 16.7%
OTHER 2 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 100 4.1% 69 69.0% 3 30.5 76.2
TITLE WORD 161 6.7% 80 49.7% 8 264.1 1118.0
EXACT TITLE 16 0.7% 14 87.5% 1 1.0 0.0
JOURNAL TITLE 53 2.2% 36 67.9% 33 2633.8 4893.1
EXACT JOURNAL 39 1.6% 6 15.4% 5,041 15966.3 23189.1
SUBJECT WORD 129 5.4% 77 59.7% 29 1214.3 4014.7
EXACT SUBJECT 52 2.2% 13 25.0% 29 1031.6 2787.9
KEYWORD 1,578 65.5% 751 47.6% 16 1735.3 18121.2
DATE 30 1.2% 10 33.3% 3 20.6 27.6
ADDED SINCE 17 0.7% 6 35.3% 8 38.7 65.5
PUB TYPE 17 0.7% 9 52.9% 7 46.0 73.6
SUBFILE 7 0.3% 5 71.4% 33 32.5 38.9
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 19 0.8% 6 31.6% 60 322.6 838.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 191 7.9% 68 35.6% 13 938.3 3282.3
Other indexes 1 0.0% 0 0.0% 1 1.0 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 305 14.9% 118 38.7% 16 657.3 2696.7
Single 1,741 85.1% 884 50.8% 18 2341.7 18565.9
PRESENT commands, by type:
MARC 44.8%
OPAC 33.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w