MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 11/03/01 through 11/09/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 40 2,258
2-4 a.m. 36 3,668
4-6 a.m. 29 3,355
6-8 a.m. 18 2,918
8-10 a.m. 94 4,498
10-12 a.m. 360 2,391
12-2 p.m. 385 4,256
2-4 p.m. 393 5,810
4-6 p.m. 253 3,682
6-8 p.m. 137 3,312
8-10 p.m. 113 5,986
10-12 p.m. 82 3,910
__________ _____________ _________________
Total: 1,940 46,044
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 1
Los Angeles 210
Riverside 0
San Diego 7
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 722
Other - UC 988
Other-Network UC 3
_____
1,940
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 50
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 45,993
Other-Network UC 1
_____
46,044
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 1.7
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) 6:57
Longest session recorded (minutes:seconds) 105:39
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1009.4
Retrievals per search - standard deviation 12182
Percent of searches completed with 0 results 59.5%
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 1,940 19.9%
PRESENT 6,550 67.1%
INIT or CLOSE 1,260 12.9%
OTHER 8 0.1%
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 304 12.1% 288 94.7% 4 110.7 281.3
TITLE WORD 423 16.8% 326 77.1% 11 1416.5 8692.2
EXACT TITLE 20 0.8% 18 90.0% 1 1.0 0.0
JOURNAL TITLE 28 1.1% 20 71.4% 47 19948.6 35908.9
EXACT JOURNAL 97 3.8% 19 19.6% 1,907 7764.7 13325.5
SUBJECT WORD 92 3.6% 70 76.1% 19 279.2 713.6
EXACT SUBJECT 28 1.1% 9 32.1% 13 520.1 1535.2
KEYWORD 1,209 48.0% 661 54.7% 14 1894.1 21365.0
DATE 117 4.6% 102 87.2% 26 123.1 201.0
ADDED SINCE 58 2.3% 6 10.3% 87 80.6 22.4
PUB TYPE 1 0.0% 1 100% 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 12 0.5% 3 25.0% 87 552.2 1035.7
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 121 4.8% 64 52.9% 6 2088.8 11115.5
Other indexes 9 0.4% 4 44.4% 20 24.8 23.7
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 473 24.4% 335 70.8% 84 943.7 7177.3
Single 1,467 75.6% 819 55.8% 14 2821.1 20706.6
PRESENT commands, by type:
MARC 19.6%
OPAC 70.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w