MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 07/01/99 through 07/31/99
1.0 SUMMARY STATISTICS
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Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 53 529
2-4 a.m. 53 560
4-6 a.m. 35 11
6-8 a.m. 79 1,193
8-10 a.m. 332 3,841
10-12 a.m. 728 8,157
12-2 p.m. 767 10,709
2-4 p.m. 760 14,525
4-6 p.m. 620 13,881
6-8 p.m. 364 6,586
8-10 p.m. 141 2,835
10-12 p.m. 120 1,636
__________ _____________ _________________
Total: 4,052 64,463
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 21
Davis 5
Irvine 4
Los Angeles 11
Riverside 1
San Diego 823
San Francisco 10
Santa Barbara 0
Santa Cruz 182
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,466
Other - UC 506
Other-Network UC 23
_____
4,052
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 30
Davis 0
Irvine 3
Los Angeles 62
Riverside 0
San Diego 10
San Francisco 22
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 62,666
Other - UC 1,631
Other-Network UC 39
_____
64,463
1.3 Response time
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Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 2.2
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) 11:08
Longest session recorded (minutes:seconds) 142:14
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1646.3
Retrievals per search - standard deviation 15462
Percent of searches completed with 0 results 44.1%
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 4,051 22.1%
PRESENT 12,342 67.4%
INIT or CLOSE 1,894 10.3%
OTHER 21 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 364 7.6% 253 69.5% 3 156.5 648.3
TITLE WORD 609 12.6% 326 53.5% 25 1657.2 5904.8
EXACT TITLE 42 0.9% 38 90.5% 5 60.3 113.9
JOURNAL TITLE 173 3.6% 102 59.0% 18 1511.7 8929.3
EXACT JOURNAL 87 1.8% 34 39.1% 2,639 7819.9 10073.6
SUBJECT WORD 386 8.0% 239 61.9% 17 493.7 2067.9
EXACT SUBJECT 183 3.8% 48 26.2% 27 990.4 3381.7
KEYWORD 2,484 51.5% 893 35.9% 34 3439.6 24229.4
DATE 140 2.9% 54 38.6% 35 175.1 574.2
ADDED SINCE 28 0.6% 17 60.7% 11 14.5 16.2
PUB TYPE 34 0.7% 19 55.9% 16 63.7 75.6
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 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% 0 0.0% 402 402.0 0.0
ARTICLE 44 0.9% 10 22.7% 86 650.3 1213.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 235 4.9% 99 42.1% 31 721.1 1950.2
Other indexes 10 0.2% 8 80.0% 25 24.5 13.4
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 620 15.3% 281 45.3% 25 426.2 1377.9
Single 3,431 84.7% 1,505 43.9% 33 3388.4 22292.6
PRESENT commands, by type:
MARC 45.8%
OPAC 29.8%