MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/19/01 through 05/25/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 37 449
2-4 a.m. 39 563
4-6 a.m. 5 18
6-8 a.m. 23 221
8-10 a.m. 117 1,102
10-12 a.m. 301 2,337
12-2 p.m. 342 5,457
2-4 p.m. 336 3,315
4-6 p.m. 339 4,156
6-8 p.m. 226 4,123
8-10 p.m. 139 3,104
10-12 p.m. 117 839
__________ _____________ _________________
Total: 2,021 25,684
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 5
Irvine 2
Los Angeles 21
Riverside 0
San Diego 7
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,057
Searchlight 883
Other - UC 44
Other-Network UC 0
_____
2,021
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 55
Irvine 0
Los Angeles 0
Riverside 0
San Diego 2
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 25,075
Searchlight 163
Other - UC 389
Other-Network UC 0
_____
25,684
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 1.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:56
Longest session recorded (minutes:seconds) 105:48
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 652.3
Retrievals per search - standard deviation 4769.6
Percent of searches completed with 0 results 53.2%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 2,021 24.5%
PRESENT 4,837 58.6%
INIT or CLOSE 1,298 15.7%
OTHER 103 1.2%
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 119 4.8% 90 75.6% 3 123.1 299.2
TITLE WORD 160 6.5% 81 50.6% 4 275.7 1873.9
EXACT TITLE 13 0.5% 11 84.6% 1 1.0 0.0
JOURNAL TITLE 36 1.5% 29 80.6% 4 254.4 523.8
EXACT JOURNAL 59 2.4% 12 20.3% 3,798 12822.0 16184.1
SUBJECT WORD 137 5.6% 92 67.2% 8 164.0 405.0
EXACT SUBJECT 47 1.9% 13 27.7% 35 927.6 3289.7
KEYWORD 1,557 63.2% 820 52.7% 14 881.2 5918.7
DATE 42 1.7% 22 52.4% 11 386.5 1046.2
ADDED SINCE 11 0.4% 9 81.8% 24 23.5 21.9
PUB TYPE 9 0.4% 2 22.2% 44 840.0 1796.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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 18 0.7% 5 27.8% 56 205.9 247.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 251 10.2% 98 39.0% 7 1969.9 10209.2
Other indexes 4 0.2% 0 0.0% 1,331 1331.0 1015.0
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 387 19.1% 176 45.5% 10 1513.1 8729.4
Single 1,634 80.8% 899 55.0% 17 1359.3 6282.4
PRESENT commands, by type:
MARC 45.0%
OPAC 30.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w