MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/22/01 through 09/28/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 49 1,642
2-4 a.m. 7 365
4-6 a.m. 7 1,121
6-8 a.m. 10 181
8-10 a.m. 95 560
10-12 a.m. 247 4,392
12-2 p.m. 153 837
2-4 p.m. 219 1,582
4-6 p.m. 160 910
6-8 p.m. 114 919
8-10 p.m. 86 776
10-12 p.m. 45 581
__________ _____________ _________________
Total: 1,192 13,866
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 9
Davis 6
Irvine 0
Los Angeles 3
Riverside 2
San Diego 9
San Francisco 2
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 355
Other - UC 801
Other-Network UC 4
_____
1,192
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 72
Davis 21
Irvine 0
Los Angeles 1
Riverside 63
San Diego 0
San Francisco 1
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 4
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 13,702
Other-Network UC 2
_____
13,866
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 1.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.1
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:17
Average session length (minutes:seconds) 11:11
Longest session recorded (minutes:seconds) 96:21
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1542.8
Retrievals per search - standard deviation 10859
Percent of searches completed with 0 results 39.1%
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 1,192 22.0%
PRESENT 3,500 64.7%
INIT or CLOSE 713 13.2%
OTHER 3 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 74 5.1% 47 63.5% 6 286.1 876.0
TITLE WORD 119 8.2% 59 49.6% 23 190.1 450.8
EXACT TITLE 27 1.9% 23 85.2% 49 48.0 52.0
JOURNAL TITLE 34 2.3% 26 76.5% 69 1395.4 2501.9
EXACT JOURNAL 46 3.2% 8 17.4% 12,621 28641.1 33685.5
SUBJECT WORD 68 4.7% 35 51.5% 7 281.8 1355.1
EXACT SUBJECT 15 1.0% 4 26.7% 376 2420.4 3411.1
KEYWORD 833 57.6% 287 34.5% 2 1253.2 11245.3
DATE 37 2.6% 12 32.4% 110 325.2 440.6
ADDED SINCE 12 0.8% 4 33.3% 45 53.3 46.0
PUB TYPE 3 0.2% 2 66.7% 24 24.0 0.0
SUBFILE 1 0.1% 1 100% 0 0.0 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 26 1.8% 4 15.4% 88 145.7 173.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 149 10.3% 16 10.7% 2 731.3 4848.0
Other indexes 1 0.1% 1 100% 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 242 20.3% 53 21.9% 2 575.7 4073.3
Single 950 79.7% 413 43.5% 10 3221.9 15841.7
PRESENT commands, by type:
MARC 51.2%
OPAC 28.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w