MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/03/01 through 02/09/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 41 319
2-4 a.m. 16 960
4-6 a.m. 10 77
6-8 a.m. 21 83
8-10 a.m. 92 364
10-12 a.m. 236 1,892
12-2 p.m. 360 2,323
2-4 p.m. 441 3,916
4-6 p.m. 292 1,661
6-8 p.m. 154 1,060
8-10 p.m. 150 2,757
10-12 p.m. 136 655
__________ _____________ _________________
Total: 1,949 16,067
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 11
Davis 6
Irvine 1
Los Angeles 1
Riverside 0
San Diego 14
San Francisco 2
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 856
Searchlight 965
Other - UC 88
Other-Network UC 5
_____
1,949
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 49
Davis 20
Irvine 1
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 14,230
Searchlight 945
Other - UC 821
Other-Network UC 1
_____
16,067
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 1.4
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
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:15
Longest session recorded (minutes:seconds) 87:51
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 810.2
Retrievals per search - standard deviation 12028
Percent of searches completed with 0 results 53.2%
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 1,949 29.2%
PRESENT 3,347 50.2%
INIT or CLOSE 1,374 20.6%
OTHER 3 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 104 4.7% 68 65.4% 3 49.3 162.1
TITLE WORD 191 8.6% 101 52.9% 26 498.6 1589.8
EXACT TITLE 11 0.5% 10 90.9% 3 3.0 0.0
JOURNAL TITLE 19 0.9% 14 73.7% 14 15730.6 34865.7
EXACT JOURNAL 30 1.3% 7 23.3% 3,717 18866.0 29589.6
SUBJECT WORD 99 4.5% 59 59.6% 10 230.0 582.4
EXACT SUBJECT 40 1.8% 8 20.0% 40 2323.9 7026.3
KEYWORD 1,501 67.5% 799 53.2% 10 1334.1 18745.8
DATE 17 0.8% 9 52.9% 34 417.1 851.3
ADDED SINCE 11 0.5% 5 45.5% 9 26.2 42.1
PUB TYPE 4 0.2% 3 75.0% 147 147.0 0.0
SUBFILE 2 0.1% 1 50.0% 9 9.0 0.0
ID 3 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 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 12 0.5% 3 25.0% 258 293.6 348.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 176 7.9% 61 34.7% 2 936.7 7532.4
Other indexes 4 0.2% 4 100% 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 242 12.4% 91 37.6% 2 754.7 6578.3
Single 1,707 87.6% 945 55.4% 16 1922.7 18964.9
PRESENT commands, by type:
MARC 47.1%
OPAC 31.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w