MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/01/01 through 10/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 161 3,850
2-4 a.m. 53 1,334
4-6 a.m. 24 1,152
6-8 a.m. 77 748
8-10 a.m. 419 2,917
10-12 a.m. 1,064 8,989
12-2 p.m. 1,416 11,858
2-4 p.m. 1,443 9,979
4-6 p.m. 1,149 7,636
6-8 p.m. 781 7,553
8-10 p.m. 531 2,869
10-12 p.m. 335 2,239
__________ _____________ _________________
Total: 7,453 61,124
1.1 SEARCH commands
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Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 12
Davis 14
Irvine 4
Los Angeles 80
Riverside 19
San Diego 38
San Francisco 8
Santa Barbara 11
Santa Cruz 4
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 3,325
Other - UC 3,927
Other-Network UC 11
_____
7,453
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6
Davis 39
Irvine 221
Los Angeles 7
Riverside 0
San Diego 178
San Francisco 89
Santa Barbara 88
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 60,405
Other-Network UC 91
_____
61,124
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 1.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:22
Longest session recorded (minutes:seconds) 145:41
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1116.7
Retrievals per search - standard deviation 10511
Percent of searches completed with 0 results 51.0%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 7,453 29.7%
PRESENT 12,486 49.8%
INIT or CLOSE 5,104 20.4%
OTHER 17 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 479 5.6% 345 72.0% 4 93.4 407.5
TITLE WORD 882 10.3% 465 52.7% 17 867.9 4616.9
EXACT TITLE 78 0.9% 65 83.3% 5 18.1 39.0
JOURNAL TITLE 157 1.8% 129 82.2% 91 8409.8 21279.7
EXACT JOURNAL 272 3.2% 35 12.9% 2,684 11328.2 20250.3
SUBJECT WORD 422 4.9% 296 70.1% 14 1793.1 9467.7
EXACT SUBJECT 145 1.7% 32 22.1% 52 1977.8 5820.7
KEYWORD 5,251 61.3% 2,629 50.1% 13 1750.3 15846.8
DATE 101 1.2% 40 39.6% 19 477.0 2136.0
ADDED SINCE 50 0.6% 26 52.0% 10 31.6 41.4
PUB TYPE 38 0.4% 25 65.8% 6 23.8 66.3
SUBFILE 9 0.1% 2 22.2% 19 135.7 205.2
ID 19 0.2% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 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 44 0.5% 20 45.5% 45 340.5 748.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 611 7.1% 208 34.0% 18 3681.7 18523.2
Other indexes 7 0.1% 1 14.3% 18 23.0 19.6
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 961 12.9% 440 45.8% 17 2929.5 16364.2
Single 6,492 87.1% 3,361 51.8% 15 2170.8 14676.0
PRESENT commands, by type:
MARC 50.0%
OPAC 29.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w