MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/00 through 01/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 171 3,402
2-4 a.m. 55 1,674
4-6 a.m. 22 140
6-8 a.m. 90 1,182
8-10 a.m. 426 4,642
10-12 a.m. 1,186 12,791
12-2 p.m. 1,341 14,410
2-4 p.m. 1,594 18,470
4-6 p.m. 1,427 20,939
6-8 p.m. 594 7,743
8-10 p.m. 510 8,939
10-12 p.m. 369 9,702
__________ _____________ _________________
Total: 7,785 104,034
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 10
Davis 8
Irvine 0
Los Angeles 9
Riverside 0
San Diego 1,066
San Francisco 1
Santa Barbara 0
Santa Cruz 47
Lawrence Berkeley 5
Lawrence Livermore 3
Los Alamos 0
MELWEB 6,266
Other - UC 344
Other-Network UC 26
_____
7,785
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 12
Davis 28
Irvine 0
Los Angeles 2
Riverside 0
San Diego 2
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 3
Los Alamos 0
MELWEB 102,351
Other - UC 1,285
Other-Network UC 348
_____
104,034
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 2.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:02
Average session length (minutes:seconds) 7:20
Longest session recorded (minutes:seconds) 168:49
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 999.0
Retrievals per search - standard deviation 8139.8
Percent of searches completed with 0 results 41.6%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 7,785 23.7%
PRESENT 20,105 61.3%
INIT or CLOSE 4,882 14.9%
OTHER 33 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 406 4.4% 255 62.8% 3 76.3 205.8
TITLE WORD 605 6.6% 294 48.6% 13 536.1 2340.9
EXACT TITLE 54 0.6% 47 87.0% 2 35.1 60.8
JOURNAL TITLE 168 1.8% 131 78.0% 82 1848.9 5668.2
EXACT JOURNAL 162 1.8% 54 33.3% 2,473 11661.7 15539.7
SUBJECT WORD 486 5.3% 245 50.4% 27 843.8 3829.1
EXACT SUBJECT 207 2.3% 54 26.1% 22 1352.5 4681.9
KEYWORD 5,988 65.3% 2,332 38.9% 16 1605.8 11257.3
DATE 171 1.9% 52 30.4% 19 227.9 767.8
ADDED SINCE 63 0.7% 35 55.6% 4 12.8 24.4
PUB TYPE 56 0.6% 33 58.9% 86 176.3 323.0
SUBFILE 21 0.2% 8 38.1% 116 591.3 1480.6
ID 10 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 1 0.0% 1 100% 0 0.0 0.0
ARTICLE 102 1.1% 16 15.7% 94 667.0 1364.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 648 7.1% 155 23.9% 3 610.5 3302.5
Other indexes 20 0.2% 9 45.0% 177 2007.5 4766.4
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 1,159 14.9% 370 31.9% 8 518.3 2732.9
Single 6,626 85.1% 2,868 43.3% 19 1960.7 11570.3
PRESENT commands, by type:
MARC 46.5%
OPAC 33.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w