MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/15/01 through 09/21/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 24 409
2-4 a.m. 8 48
4-6 a.m. 0 0
6-8 a.m. 5 4
8-10 a.m. 55 1,630
10-12 a.m. 170 3,479
12-2 p.m. 174 2,544
2-4 p.m. 213 2,754
4-6 p.m. 111 681
6-8 p.m. 51 450
8-10 p.m. 39 281
10-12 p.m. 57 376
__________ _____________ _________________
Total: 907 12,656
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 4
Davis 7
Irvine 0
Los Angeles 20
Riverside 1
San Diego 3
San Francisco 0
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 269
Other - UC 593
Other-Network UC 6
_____
907
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2
Davis 14
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 0
Searchlight 0
Other - UC 11,632
Other-Network UC 1,006
_____
12,656
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 2.0
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:14
Average session length (minutes:seconds) 10:49
Longest session recorded (minutes:seconds) 139:11
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1703.4
Retrievals per search - standard deviation 10031
Percent of searches completed with 0 results 43.8%
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 907 17.8%
PRESENT 3,678 72.3%
INIT or CLOSE 501 9.8%
OTHER 1 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 78 6.7% 55 70.5% 4 338.1 729.7
TITLE WORD 131 11.3% 69 52.7% 8 501.4 1354.6
EXACT TITLE 13 1.1% 12 92.3% 112 112.0 0.0
JOURNAL TITLE 19 1.6% 12 63.2% 11 20.6 23.1
EXACT JOURNAL 35 3.0% 3 8.6% 11,830 29468.7 32894.5
SUBJECT WORD 68 5.8% 38 55.9% 12 2828.4 14339.0
EXACT SUBJECT 27 2.3% 6 22.2% 32 2588.5 6556.1
KEYWORD 575 49.4% 232 40.3% 6 1236.0 8479.1
DATE 104 8.9% 34 32.7% 9 207.0 974.5
ADDED SINCE 11 0.9% 5 45.5% 7 11.7 16.0
PUB TYPE 4 0.3% 3 75.0% 1 1.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 1 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 7 0.6% 4 57.1% 305 717.7 987.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 91 7.8% 14 15.4% 2 815.2 4338.2
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 229 25.2% 66 28.8% 3 489.2 3057.6
Single 678 74.8% 331 48.8% 15 4222.6 15770.1
PRESENT commands, by type:
MARC 60.3%
OPAC 23.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w