MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 11/24/01 through 11/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 18 143
2-4 a.m. 53 515
4-6 a.m. 27 151
6-8 a.m. 14 85
8-10 a.m. 86 563
10-12 a.m. 235 2,271
12-2 p.m. 376 3,986
2-4 p.m. 429 3,868
4-6 p.m. 353 2,550
6-8 p.m. 215 1,767
8-10 p.m. 184 1,195
10-12 p.m. 105 1,750
__________ _____________ _________________
Total: 2,095 18,844
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 32
Irvine 0
Los Angeles 10
Riverside 0
San Diego 7
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 942
Other - UC 1,100
Other-Network UC 1
_____
2,095
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 2
Irvine 0
Los Angeles 33
Riverside 0
San Diego 24
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 18,785
Other-Network UC 0
_____
18,844
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 2.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:19
Longest session recorded (minutes:seconds) 161:13
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 761.5
Retrievals per search - standard deviation 11840
Percent of searches completed with 0 results 52.6%
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 2,095 29.9%
PRESENT 3,503 50.0%
INIT or CLOSE 1,409 20.1%
OTHER 3 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 130 5.3% 96 73.8% 3 86.0 435.9
TITLE WORD 207 8.4% 128 61.8% 5 179.7 708.7
EXACT TITLE 20 0.8% 17 85.0% 1 1.3 0.6
JOURNAL TITLE 27 1.1% 24 88.9% 19 14.3 11.7
EXACT JOURNAL 114 4.6% 7 6.1% 1,594 5750.6 9759.6
SUBJECT WORD 147 6.0% 105 71.4% 14 541.9 1821.0
EXACT SUBJECT 45 1.8% 15 33.3% 180 631.4 1455.6
KEYWORD 1,504 61.3% 789 52.5% 15 1293.7 19791.5
DATE 26 1.1% 6 23.1% 12 157.7 388.4
ADDED SINCE 8 0.3% 4 50.0% 46 39.5 14.6
PUB TYPE 10 0.4% 3 30.0% 116 285.4 550.2
SUBFILE 1 0.0% 1 100% 0 0.0 0.0
ID 13 0.5% 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 22 0.9% 3 13.6% 483 1080.7 1570.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 176 7.2% 75 42.6% 22 630.7 2042.7
Other indexes 2 0.1% 0 0.0% 1 1.0 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 311 14.8% 153 49.2% 24 575.5 1752.4
Single 1,784 85.2% 950 53.3% 17 1803.9 18707.4
PRESENT commands, by type:
MARC 45.9%
OPAC 30.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w