MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/01 through 09/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 111 2,541
2-4 a.m. 35 1,198
4-6 a.m. 10 1,776
6-8 a.m. 40 395
8-10 a.m. 291 5,344
10-12 a.m. 748 10,830
12-2 p.m. 640 4,522
2-4 p.m. 782 8,094
4-6 p.m. 617 5,910
6-8 p.m. 281 2,327
8-10 p.m. 203 2,937
10-12 p.m. 153 2,119
__________ _____________ _________________
Total: 3,911 47,993
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 23
Davis 113
Irvine 4
Los Angeles 239
Riverside 21
San Diego 28
San Francisco 7
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 5
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 1,189
Other - UC 2,264
Other-Network UC 15
_____
3,911
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 75
Davis 47
Irvine 0
Los Angeles 16
Riverside 65
San Diego 2
San Francisco 16
Santa Barbara 3
Santa Cruz 0
Lawrence Berkeley 5
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 46,433
Other-Network UC 1,331
_____
47,993
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 1.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:12
Average session length (minutes:seconds) 9:50
Longest session recorded (minutes:seconds) 139:11
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1255.5
Retrievals per search - standard deviation 9307.1
Percent of searches completed with 0 results 48.0%
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 3,911 22.6%
PRESENT 11,126 64.4%
INIT or CLOSE 2,224 12.9%
OTHER 6 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 599 11.7% 488 81.5% 3 171.6 563.4
TITLE WORD 657 12.8% 444 67.6% 15 344.9 937.4
EXACT TITLE 59 1.2% 49 83.1% 19 216.1 564.6
JOURNAL TITLE 127 2.5% 97 76.4% 42 868.5 1632.1
EXACT JOURNAL 164 3.2% 24 14.6% 5,635 18730.9 26642.1
SUBJECT WORD 257 5.0% 150 58.4% 12 974.4 7631.7
EXACT SUBJECT 76 1.5% 19 25.0% 66 1558.1 4331.2
KEYWORD 2,324 45.4% 920 39.6% 10 1407.6 11528.9
DATE 422 8.3% 302 71.6% 13 204.6 774.5
ADDED SINCE 48 0.9% 27 56.3% 13 33.7 38.4
PUB TYPE 10 0.2% 7 70.0% 1 8.7 13.3
SUBFILE 1 0.0% 1 100% 0 0.0 0.0
ID 6 0.1% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 521 521.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 62 1.2% 10 16.1% 76 227.4 504.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 299 5.8% 59 19.7% 2 1232.6 6860.1
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 939 24.0% 482 51.3% 3 727.7 5013.3
Single 2,972 76.0% 1,397 47.0% 19 2906.5 14255.2
PRESENT commands, by type:
MARC 54.1%
OPAC 24.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w