MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/00 through 04/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 264 4,462
2-4 a.m. 67 699
4-6 a.m. 43 563
6-8 a.m. 60 852
8-10 a.m. 482 4,517
10-12 a.m. 1,286 13,373
12-2 p.m. 1,600 13,624
2-4 p.m. 1,785 15,608
4-6 p.m. 1,314 13,149
6-8 p.m. 750 8,353
8-10 p.m. 716 7,265
10-12 p.m. 461 6,769
__________ _____________ _________________
Total: 8,828 89,234
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 15
Davis 7
Irvine 3
Los Angeles 9
Riverside 0
San Diego 680
San Francisco 22
Santa Barbara 2
Santa Cruz 4
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 6,577
Searchlight 379
Other - UC 1,081
Other-Network UC 49
_____
8,828
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 1
Irvine 0
Los Angeles 140
Riverside 0
San Diego 0
San Francisco 24
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 81,254
Searchlight 2,988
Other - UC 4,686
Other-Network UC 141
_____
89,234
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 3.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.8
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 8:25
Longest session recorded (minutes:seconds) 138:39
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 914.9
Retrievals per search - standard deviation 9426.1
Percent of searches completed with 0 results 48.5%
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 8,828 27.2%
PRESENT 18,273 56.3%
INIT or CLOSE 5,301 16.3%
OTHER 50 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 547 5.2% 420 76.8% 2 107.7 383.6
TITLE WORD 998 9.5% 546 54.7% 15 629.1 3515.3
EXACT TITLE 97 0.9% 80 82.5% 1 237.5 750.2
JOURNAL TITLE 264 2.5% 194 73.5% 7 5398.2 22917.2
EXACT JOURNAL 165 1.6% 47 28.5% 2,574 14610.6 22305.9
SUBJECT WORD 710 6.7% 429 60.4% 13 486.7 2378.5
EXACT SUBJECT 275 2.6% 92 33.5% 12 752.8 3061.5
KEYWORD 6,191 58.7% 2,754 44.5% 13 1576.6 13777.8
DATE 155 1.5% 52 33.5% 12 61.8 123.9
ADDED SINCE 71 0.7% 39 54.9% 9 33.7 71.3
PUB TYPE 66 0.6% 29 43.9% 29 178.5 380.0
SUBFILE 19 0.2% 3 15.8% 16 46.6 69.4
ID 13 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 122 1.2% 20 16.4% 153 2943.8 11408.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 845 8.0% 255 30.2% 3 812.2 5330.9
Other indexes 5 0.0% 3 60.0% 75 75.0 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 1,449 16.4% 538 37.1% 8 849.4 5749.9
Single 7,379 83.6% 3,746 50.8% 16 2010.2 14334.1
PRESENT commands, by type:
MARC 48.0%
OPAC 31.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w