MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/12/01 through 05/18/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 90 3,387
2-4 a.m. 47 2,432
4-6 a.m. 10 100
6-8 a.m. 26 332
8-10 a.m. 97 421
10-12 a.m. 270 3,800
12-2 p.m. 420 8,912
2-4 p.m. 472 8,031
4-6 p.m. 311 4,533
6-8 p.m. 179 5,573
8-10 p.m. 196 2,844
10-12 p.m. 147 1,886
__________ _____________ _________________
Total: 2,265 42,251
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 22
Irvine 2
Los Angeles 18
Riverside 0
San Diego 8
San Francisco 2
Santa Barbara 8
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,228
Searchlight 929
Other - UC 44
Other-Network UC 1
_____
2,265
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 123
Irvine 4
Los Angeles 0
Riverside 0
San Diego 1
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 38,158
Searchlight 3,597
Other - UC 368
Other-Network UC 0
_____
42,251
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 2.7
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) 0:11
Average session length (minutes:seconds) 8:44
Longest session recorded (minutes:seconds) 177:40
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 827.1
Retrievals per search - standard deviation 6878.2
Percent of searches completed with 0 results 51.3%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 2,265 20.3%
PRESENT 7,433 66.8%
INIT or CLOSE 1,418 12.7%
OTHER 15 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 137 4.9% 93 67.9% 1 16.8 35.8
TITLE WORD 215 7.6% 115 53.5% 3 473.0 1764.4
EXACT TITLE 17 0.6% 13 76.5% 1 1.0 0.0
JOURNAL TITLE 72 2.6% 49 68.1% 129 4250.6 16163.8
EXACT JOURNAL 83 2.9% 7 8.4% 2,446 6911.9 10884.8
SUBJECT WORD 146 5.2% 88 60.3% 10 838.9 3911.1
EXACT SUBJECT 59 2.1% 12 20.3% 12 785.4 3057.4
KEYWORD 1,679 59.6% 859 51.2% 16 1365.5 10291.7
DATE 72 2.6% 29 40.3% 85 330.6 942.5
ADDED SINCE 17 0.6% 10 58.8% 18 105.0 119.0
PUB TYPE 16 0.6% 12 75.0% 4 8.3 10.9
SUBFILE 4 0.1% 2 50.0% 23 23.0 0.0
ID 1 0.0% 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 59 2.1% 9 15.3% 72 565.5 1031.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 236 8.4% 77 32.6% 36 1337.5 6647.9
Other indexes 2 0.1% 2 100% 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 441 19.5% 170 38.5% 23 834.1 5123.7
Single 1,824 80.5% 992 54.4% 16 1980.1 10866.2
PRESENT commands, by type:
MARC 41.5%
OPAC 34.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w