MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/06/02 through 04/12/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 51 415
2-4 a.m. 52 302
4-6 a.m. 3 0
6-8 a.m. 27 5
8-10 a.m. 88 364
10-12 a.m. 246 750
12-2 p.m. 303 580
2-4 p.m. 475 1,822
4-6 p.m. 305 1,564
6-8 p.m. 180 2,847
8-10 p.m. 138 321
10-12 p.m. 124 237
__________ _____________ _________________
Total: 1,992 9,207
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 5
Irvine 0
Los Angeles 0
Riverside 2
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 489
Searchlight 1,365
Other - UC 125
Other-Network UC 3
_____
1,992
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 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 8,709
Searchlight 46
Other - UC 449
Other-Network UC 1
_____
9,207
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.4
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) 0:03
Average session length (minutes:seconds) 3:41
Longest session recorded (minutes:seconds) 91:12
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 669.4
Retrievals per search - standard deviation 3419.7
Percent of searches completed with 0 results 56.2%
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 1,992 37.5%
PRESENT 1,646 31.0%
INIT or CLOSE 1,664 31.4%
OTHER 4 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 3.5% 52 70.3% 3 39.1 85.6
TITLE WORD 140 6.7% 85 60.7% 13 78.3 125.0
EXACT TITLE 14 0.7% 14 100% 0 0.0 0.0
JOURNAL TITLE 19 0.9% 16 84.2% 9,628 10470.3 10235.5
EXACT JOURNAL 83 4.0% 8 9.6% 920 5478.4 10186.3
SUBJECT WORD 64 3.1% 38 59.4% 17 297.7 787.8
EXACT SUBJECT 19 0.9% 6 31.6% 88 804.5 1386.3
KEYWORD 1,611 76.8% 928 57.6% 21 1271.3 4290.5
DATE 5 0.2% 2 40.0% 19 13.7 10.1
ADDED SINCE 6 0.3% 4 66.7% 6 6.0 5.7
PUB TYPE 3 0.1% 0 0.0% 12 10.0 8.2
SUBFILE 3 0.1% 0 0.0% 19 139.0 207.8
ID 5 0.2% 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 0 0.0% 0 0.0% 0 0.0 0.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 52 2.5% 22 42.3% 15 172.8 377.5
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 102 5.1% 52 51.0% 12 123.0 305.7
Single 1,890 94.9% 1,068 56.5% 26 1614.7 5179.8
PRESENT commands, by type:
MARC 47.4%
OPAC 32.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w