MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/14/01 through 04/20/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 43 192
2-4 a.m. 22 2,081
4-6 a.m. 6 172
6-8 a.m. 19 174
8-10 a.m. 141 1,257
10-12 a.m. 292 1,742
12-2 p.m. 296 2,911
2-4 p.m. 326 3,319
4-6 p.m. 286 4,696
6-8 p.m. 169 1,609
8-10 p.m. 126 1,134
10-12 p.m. 118 869
__________ _____________ _________________
Total: 1,844 20,156
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 1
Irvine 0
Los Angeles 8
Riverside 0
San Diego 14
San Francisco 3
Santa Barbara 1
Santa Cruz 1
Lawrence Berkeley 1
Lawrence Livermore 2
Los Alamos 0
MELWEB 868
Searchlight 798
Other - UC 129
Other-Network UC 18
_____
1,844
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 0
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 247
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 16,977
Searchlight 2,080
Other - UC 836
Other-Network UC 16
_____
20,156
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 2.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 7:36
Longest session recorded (minutes:seconds) 114:24
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 885.4
Retrievals per search - standard deviation 7022.1
Percent of searches completed with 0 results 50.5%
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 1,844 26.5%
PRESENT 3,911 56.2%
INIT or CLOSE 1,200 17.2%
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 86 4.0% 60 69.8% 7 101.7 297.0
TITLE WORD 189 8.8% 85 45.0% 17 2055.0 8569.8
EXACT TITLE 21 1.0% 18 85.7% 2 2.3 1.5
JOURNAL TITLE 41 1.9% 27 65.9% 64 1904.7 3930.7
EXACT JOURNAL 73 3.4% 8 11.0% 3,798 10302.1 13981.0
SUBJECT WORD 143 6.6% 96 67.1% 9 206.7 507.5
EXACT SUBJECT 36 1.7% 11 30.6% 74 1503.0 5623.7
KEYWORD 1,317 61.1% 662 50.3% 15 1025.7 9824.4
DATE 49 2.3% 11 22.4% 26 109.5 217.5
ADDED SINCE 13 0.6% 6 46.2% 5 41.9 73.4
PUB TYPE 17 0.8% 13 76.5% 7 40.3 70.6
SUBFILE 11 0.5% 6 54.5% 25 373.4 792.7
ID 2 0.1% 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 15 0.7% 8 53.3% 102 480.4 1005.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 134 6.2% 51 38.1% 5 4415.3 25340.0
Other indexes 6 0.3% 1 16.7% 2,388 1740.6 1707.5
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 256 13.9% 113 44.1% 9 2660.5 19370.5
Single 1,588 86.1% 819 51.6% 22 1628.3 6845.7
PRESENT commands, by type:
MARC 46.3%
OPAC 32.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w