MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/31/01 through 04/06/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 25 344
2-4 a.m. 12 120
4-6 a.m. 5 0
6-8 a.m. 10 269
8-10 a.m. 79 1,361
10-12 a.m. 183 1,469
12-2 p.m. 226 2,006
2-4 p.m. 303 2,225
4-6 p.m. 210 699
6-8 p.m. 94 593
8-10 p.m. 103 1,218
10-12 p.m. 43 518
__________ _____________ _________________
Total: 1,293 10,822
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 7
Irvine 0
Los Angeles 27
Riverside 0
San Diego 12
San Francisco 2
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 10
Lawrence Livermore 0
Los Alamos 0
MELWEB 484
Searchlight 645
Other - UC 105
Other-Network UC 0
_____
1,293
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 16
Davis 0
Irvine 0
Los Angeles 3
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 9,518
Searchlight 341
Other - UC 943
Other-Network UC 0
_____
10,822
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 1.0
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) 0:09
Average session length (minutes:seconds) 6:20
Longest session recorded (minutes:seconds) 60:58
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 975.5
Retrievals per search - standard deviation 6772.3
Percent of searches completed with 0 results 54.1%
Percent of searches entered that are long 0.6%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 1,293 29.0%
PRESENT 2,234 50.2%
INIT or CLOSE 923 20.7%
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 120 8.3% 96 80.0% 3 26.1 66.6
TITLE WORD 144 9.9% 72 50.0% 15 222.1 746.0
EXACT TITLE 7 0.5% 7 100% 0 0.0 0.0
JOURNAL TITLE 30 2.1% 24 80.0% 15 6075.0 14851.8
EXACT JOURNAL 40 2.8% 2 5.0% 3,588 15144.3 22508.4
SUBJECT WORD 67 4.6% 31 46.3% 5 111.0 292.4
EXACT SUBJECT 33 2.3% 9 27.3% 70 5594.4 14437.0
KEYWORD 902 62.1% 492 54.5% 15 1206.9 7897.9
DATE 25 1.7% 19 76.0% 55 70.8 62.9
ADDED SINCE 10 0.7% 4 40.0% 7 13.0 13.9
PUB TYPE 4 0.3% 4 100% 0 0.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 2 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 3 0.2% 1 33.3% 782 782.0 920.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 65 4.5% 21 32.3% 5 6329.7 21650.9
Other indexes 0 0.0% 0 0.0% 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 145 11.2% 73 50.3% 9 3901.3 17126.6
Single 1,148 88.8% 627 54.6% 18 1881.7 8403.2
PRESENT commands, by type:
MARC 50.0%
OPAC 27.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w