MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 08/11/01 through 08/17/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 18 1,379
2-4 a.m. 3 3
4-6 a.m. 0 0
6-8 a.m. 7 5
8-10 a.m. 81 241
10-12 a.m. 182 1,120
12-2 p.m. 193 2,317
2-4 p.m. 190 2,362
4-6 p.m. 120 680
6-8 p.m. 57 381
8-10 p.m. 30 480
10-12 p.m. 20 189
__________ _____________ _________________
Total: 901 9,157
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 4
Irvine 1
Los Angeles 170
Riverside 0
San Diego 2
San Francisco 5
Santa Barbara 6
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 272
Other - UC 439
Other-Network UC 2
_____
901
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 316
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 8,839
Other-Network UC 0
_____
9,157
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 0.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:11
Average session length (minutes:seconds) 8:44
Longest session recorded (minutes:seconds) 117:31
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 661.8
Retrievals per search - standard deviation 4272.7
Percent of searches completed with 0 results 60.8%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 901 30.5%
PRESENT 1,571 53.2%
INIT or CLOSE 476 16.1%
OTHER 6 0.2%
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 229 19.0% 206 90.0% 12 32.2 47.4
TITLE WORD 228 18.9% 202 88.6% 8 106.2 282.3
EXACT TITLE 11 0.9% 8 72.7% 242 215.7 202.8
JOURNAL TITLE 14 1.2% 13 92.9% 26 26.0 0.0
EXACT JOURNAL 66 5.5% 14 21.2% 1,011 7490.7 11092.2
SUBJECT WORD 62 5.1% 43 69.4% 26 123.8 184.4
EXACT SUBJECT 6 0.5% 2 33.3% 24 42.0 52.5
KEYWORD 495 41.0% 251 50.7% 21 823.5 5541.9
DATE 33 2.7% 24 72.7% 24 29.7 22.7
ADDED SINCE 11 0.9% 7 63.6% 10 51.8 89.6
PUB TYPE 3 0.2% 2 66.7% 1 1.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 1 0.1% 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 4 0.3% 1 25.0% 22 30.0 23.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 44 3.6% 20 45.5% 18 289.3 740.6
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 266 29.5% 213 80.1% 17 154.2 510.2
Single 635 70.5% 335 52.8% 32 1960.3 7236.3
PRESENT commands, by type:
MARC 41.0%
OPAC 42.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w