MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/10/01 through 03/16/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 55 1,593
2-4 a.m. 32 155
4-6 a.m. 21 1,016
6-8 a.m. 20 72
8-10 a.m. 98 2,736
10-12 a.m. 227 1,974
12-2 p.m. 311 3,425
2-4 p.m. 417 3,732
4-6 p.m. 316 3,203
6-8 p.m. 188 2,643
8-10 p.m. 182 3,720
10-12 p.m. 85 274
__________ _____________ _________________
Total: 1,952 24,543
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 2
Davis 2
Irvine 0
Los Angeles 0
Riverside 3
San Diego 24
San Francisco 6
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 996
Searchlight 828
Other - UC 85
Other-Network UC 6
_____
1,952
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 0
Los Angeles 0
Riverside 0
San Diego 8
San Francisco 6
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 22,856
Searchlight 935
Other - UC 727
Other-Network UC 11
_____
24,543
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 1.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
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) 8:12
Longest session recorded (minutes:seconds) 75:26
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 940.9
Retrievals per search - standard deviation 6568.8
Percent of searches completed with 0 results 52.1%
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 1,952 25.3%
PRESENT 4,482 58.0%
INIT or CLOSE 1,296 16.8%
OTHER 0 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 105 4.7% 72 68.6% 2 146.5 531.4
TITLE WORD 202 9.0% 90 44.6% 7 113.0 286.9
EXACT TITLE 25 1.1% 17 68.0% 1 3.1 4.4
JOURNAL TITLE 51 2.3% 35 68.6% 20 936.2 1296.9
EXACT JOURNAL 99 4.4% 16 16.2% 2,316 9191.9 14088.4
SUBJECT WORD 124 5.5% 84 67.7% 16 655.8 1299.5
EXACT SUBJECT 31 1.4% 13 41.9% 5 196.7 574.5
KEYWORD 1,385 62.0% 739 53.4% 14 1575.5 9715.9
DATE 22 1.0% 12 54.5% 25 58.1 84.7
ADDED SINCE 11 0.5% 8 72.7% 8 50.7 76.5
PUB TYPE 7 0.3% 4 57.1% 184 143.0 72.8
SUBFILE 4 0.2% 4 100% 0 0.0 0.0
ID 4 0.2% 0 0.0% 1 1.0 0.0
ISSN 2 0.1% 2 100% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 16 0.7% 7 43.8% 15 179.2 268.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 144 6.4% 59 41.0% 5 706.2 2478.9
Other indexes 2 0.1% 0 0.0% 112 112.0 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 245 12.6% 119 48.6% 6 503.6 2054.8
Single 1,707 87.4% 898 52.6% 16 2191.9 10041.1
PRESENT commands, by type:
MARC 43.2%
OPAC 27.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w