MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/23/02 through 03/01/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 20 78
2-4 a.m. 17 301
4-6 a.m. 10 81
6-8 a.m. 17 287
8-10 a.m. 74 298
10-12 a.m. 128 905
12-2 p.m. 288 1,756
2-4 p.m. 240 1,266
4-6 p.m. 262 3,467
6-8 p.m. 172 840
8-10 p.m. 135 877
10-12 p.m. 97 360
__________ _____________ _________________
Total: 1,460 10,516
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 4
Irvine 0
Los Angeles 4
Riverside 1
San Diego 0
San Francisco 0
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 686
Searchlight 623
Other - UC 139
Other-Network UC 0
_____
1,460
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6
Davis 4
Irvine 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 9,925
Searchlight 285
Other - UC 296
Other-Network UC 0
_____
10,516
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.4
Standard deviation in seconds 1.5
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) 0:06
Average session length (minutes:seconds) 7:11
Longest session recorded (minutes:seconds) 75:18
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1825.6
Retrievals per search - standard deviation 21785
Percent of searches completed with 0 results 53.3%
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 1,460 32.3%
PRESENT 2,062 45.6%
INIT or CLOSE 993 22.0%
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 73 4.4% 55 75.3% 3 252.6 1018.8
TITLE WORD 161 9.7% 99 61.5% 22 635.5 2545.4
EXACT TITLE 15 0.9% 14 93.3% 1 1.0 0.0
JOURNAL TITLE 58 3.5% 44 75.9% 733 4187.7 8066.2
EXACT JOURNAL 57 3.4% 6 10.5% 2,677 7390.9 9797.2
SUBJECT WORD 71 4.3% 56 78.9% 11 59.9 130.8
EXACT SUBJECT 15 0.9% 5 33.3% 15 55.2 91.9
KEYWORD 1,057 63.6% 536 50.7% 16 4192.9 36136.3
DATE 27 1.6% 17 63.0% 9 39.3 62.0
ADDED SINCE 6 0.4% 1 16.7% 11 20.2 20.7
PUB TYPE 3 0.2% 2 66.7% 2 2.0 0.0
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 7 0.4% 4 57.1% 1,200 7770.3 12432.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 112 6.7% 51 45.5% 43 1880.7 6990.1
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 184 12.6% 98 53.3% 18 1340.0 5934.0
Single 1,276 87.4% 680 53.3% 16 4278.8 33886.8
PRESENT commands, by type:
MARC 47.0%
OPAC 34.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w