MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/20/02 through 04/26/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 70 817
2-4 a.m. 35 177
4-6 a.m. 11 19
6-8 a.m. 30 15
8-10 a.m. 109 304
10-12 a.m. 244 864
12-2 p.m. 385 2,343
2-4 p.m. 456 2,354
4-6 p.m. 351 3,115
6-8 p.m. 180 234
8-10 p.m. 167 2,077
10-12 p.m. 213 3,096
__________ _____________ _________________
Total: 2,251 15,415
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 18
Irvine 4
Los Angeles 0
Riverside 2
San Diego 2
San Francisco 0
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 0
MELWEB 646
Searchlight 1,494
Other - UC 79
Other-Network UC 1
_____
2,251
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 22
Irvine 0
Los Angeles 0
Riverside 252
San Diego 51
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 14,296
Searchlight 64
Other - UC 730
Other-Network UC 0
_____
15,415
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.3
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:04
Average session length (minutes:seconds) 3:57
Longest session recorded (minutes:seconds) 97:02
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 645.0
Retrievals per search - standard deviation 5519.0
Percent of searches completed with 0 results 57.1%
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 2,251 32.5%
PRESENT 2,865 41.3%
INIT or CLOSE 1,813 26.1%
OTHER 6 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 87 3.6% 64 73.6% 3 24.4 55.4
TITLE WORD 129 5.3% 68 52.7% 9 1057.7 6399.9
EXACT TITLE 7 0.3% 7 100% 0 0.0 0.0
JOURNAL TITLE 39 1.6% 20 51.3% 21 117.8 234.6
EXACT JOURNAL 55 2.3% 5 9.1% 366 9813.6 21852.1
SUBJECT WORD 71 2.9% 47 66.2% 12 475.7 1519.0
EXACT SUBJECT 30 1.2% 5 16.7% 28 1011.4 1797.2
KEYWORD 1,882 77.1% 1,097 58.3% 13 1156.3 7141.9
DATE 34 1.4% 12 35.3% 100 192.6 383.3
ADDED SINCE 5 0.2% 4 80.0% 13 13.0 0.0
PUB TYPE 2 0.1% 1 50.0% 3 3.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 3 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 6 0.2% 1 16.7% 65 319.0 594.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 92 3.8% 35 38.0% 58 1974.7 10106.9
Other indexes 0 0.0% 0 0.0% 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 168 7.5% 67 39.9% 29 1665.3 9021.5
Single 2,083 92.5% 1,219 58.5% 12 1485.7 8278.5
PRESENT commands, by type:
MARC 46.0%
OPAC 35.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w