MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/03/01 through 03/09/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 91 4,137
2-4 a.m. 28 192
4-6 a.m. 8 31
6-8 a.m. 17 18
8-10 a.m. 148 1,006
10-12 a.m. 342 3,393
12-2 p.m. 412 5,498
2-4 p.m. 565 5,596
4-6 p.m. 473 6,561
6-8 p.m. 300 1,620
8-10 p.m. 227 1,903
10-12 p.m. 129 6,617
__________ _____________ _________________
Total: 2,740 36,572
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 10
Davis 3
Irvine 0
Los Angeles 6
Riverside 1
San Diego 12
San Francisco 6
Santa Barbara 13
Santa Cruz 0
Lawrence Berkeley 2
Lawrence Livermore 2
Los Alamos 0
MELWEB 1,457
Searchlight 1,173
Other - UC 53
Other-Network UC 2
_____
2,740
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 49
Davis 0
Irvine 0
Los Angeles 13
Riverside 0
San Diego 0
San Francisco 85
Santa Barbara 44
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 1
Los Alamos 0
MELWEB 35,710
Searchlight 394
Other - UC 234
Other-Network UC 42
_____
36,572
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 1.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 7:48
Longest session recorded (minutes:seconds) 80:32
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1242.9
Retrievals per search - standard deviation 9196.1
Percent of searches completed with 0 results 54.8%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 2,740 24.5%
PRESENT 6,700 59.8%
INIT or CLOSE 1,757 15.7%
OTHER 4 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 126 3.8% 97 77.0% 4 63.9 156.2
TITLE WORD 229 6.9% 137 59.8% 10 588.5 3673.2
EXACT TITLE 25 0.8% 23 92.0% 1 1.0 0.0
JOURNAL TITLE 76 2.3% 62 81.6% 1,196 12904.6 27756.9
EXACT JOURNAL 69 2.1% 15 21.7% 3,253 10254.2 13537.6
SUBJECT WORD 208 6.3% 145 69.7% 7 3587.6 27187.4
EXACT SUBJECT 81 2.5% 26 32.1% 20 1365.8 3793.5
KEYWORD 2,053 62.3% 1,094 53.3% 12 2413.3 12669.0
DATE 32 1.0% 11 34.4% 35 151.5 459.9
ADDED SINCE 11 0.3% 4 36.4% 3 9.1 12.2
PUB TYPE 10 0.3% 8 80.0% 205 204.5 269.4
SUBFILE 6 0.2% 5 83.3% 6 6.0 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 25 0.8% 18 72.0% 123 91.3 74.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 340 10.3% 120 35.3% 22 1838.5 15278.9
Other indexes 3 0.1% 1 33.3% 749 749.0 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 486 17.7% 212 43.6% 18 1494.4 13703.0
Single 2,254 82.3% 1,290 57.2% 13 3107.9 13468.2
PRESENT commands, by type:
MARC 41.5%
OPAC 36.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w