MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 11/10/01 through 11/16/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 42 2,325
2-4 a.m. 32 2,303
4-6 a.m. 28 2,412
6-8 a.m. 18 2,139
8-10 a.m. 132 3,488
10-12 a.m. 261 3,494
12-2 p.m. 340 4,175
2-4 p.m. 369 3,812
4-6 p.m. 353 5,055
6-8 p.m. 180 3,824
8-10 p.m. 140 3,941
10-12 p.m. 124 3,774
__________ _____________ _________________
Total: 2,019 40,742
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 0
Irvine 4
Los Angeles 59
Riverside 0
San Diego 9
San Francisco 4
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 837
Other - UC 1,097
Other-Network UC 7
_____
2,019
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 4
Los Angeles 219
Riverside 0
San Diego 3
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 40,516
Other-Network UC 0
_____
40,742
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 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:31
Longest session recorded (minutes:seconds) 92:15
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 764.7
Retrievals per search - standard deviation 4750.7
Percent of searches completed with 0 results 53.4%
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 2,019 21.0%
PRESENT 6,215 64.8%
INIT or CLOSE 1,352 14.1%
OTHER 9 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 170 7.3% 119 70.0% 4 119.0 329.1
TITLE WORD 263 11.3% 161 61.2% 7 161.5 475.4
EXACT TITLE 21 0.9% 17 80.9% 1 100.5 199.0
JOURNAL TITLE 34 1.5% 31 91.2% 38 40.3 39.6
EXACT JOURNAL 131 5.6% 19 14.5% 1,584 8866.2 15434.4
SUBJECT WORD 117 5.0% 82 70.1% 8 2306.6 7370.3
EXACT SUBJECT 31 1.3% 12 38.7% 35 431.7 867.5
KEYWORD 1,358 58.2% 727 53.5% 22 696.2 3798.5
DATE 19 0.8% 8 42.1% 43 137.5 136.0
ADDED SINCE 35 1.5% 3 8.6% 87 80.7 20.6
PUB TYPE 5 0.2% 4 80.0% 1 1.0 0.0
SUBFILE 4 0.2% 2 50.0% 24,253 24253.0 0.0
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 24 1.0% 16 66.7% 47 1093.3 2209.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 115 4.9% 46 40.0% 21 2621.5 10384.7
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 284 14.1% 144 50.7% 51 1730.5 7869.8
Single 1,735 85.9% 934 53.8% 22 1625.1 6669.1
PRESENT commands, by type:
MARC 29.1%
OPAC 57.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w