MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/99 through 06/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 102 1,294
2-4 a.m. 84 1,265
4-6 a.m. 19 111
6-8 a.m. 100 293
8-10 a.m. 346 5,947
10-12 a.m. 800 9,922
12-2 p.m. 902 18,816
2-4 p.m. 1,277 19,303
4-6 p.m. 844 17,633
6-8 p.m. 469 8,350
8-10 p.m. 367 4,798
10-12 p.m. 227 3,613
__________ _____________ _________________
Total: 5,537 91,345
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 19
Davis 3
Irvine 9
Los Angeles 31
Riverside 0
San Diego 1,022
San Francisco 15
Santa Barbara 3
Santa Cruz 185
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,202
Other - UC 1,024
Other-Network UC 24
_____
5,537
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 127
Davis 16
Irvine 183
Los Angeles 702
Riverside 0
San Diego 134
San Francisco 69
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 79,136
Other - UC 10,713
Other-Network UC 264
_____
91,345
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 4.8
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) 2:00
Average session length (minutes:seconds) 12:45
Longest session recorded (minutes:seconds) 141:48
Average number of searches completed per session 0.0
Retrievals per search - median 3.0
Retrievals per search - average 1402.8
Retrievals per search - standard deviation 12462
Percent of searches completed with 0 results 40.2%
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 5,537 21.3%
PRESENT 17,820 68.4%
INIT or CLOSE 2,650 10.2%
OTHER 39 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 474 6.9% 309 65.2% 5 159.2 518.6
TITLE WORD 877 12.8% 398 45.4% 19 1890.1 8234.2
EXACT TITLE 78 1.1% 71 91.0% 2 35.1 64.2
JOURNAL TITLE 188 2.7% 126 67.0% 56 617.1 1199.2
EXACT JOURNAL 83 1.2% 25 30.1% 5,512 11156.4 12738.1
SUBJECT WORD 910 13.3% 396 43.5% 85 709.1 2463.1
EXACT SUBJECT 215 3.1% 85 39.5% 30 586.1 1510.8
KEYWORD 3,164 46.2% 1,090 34.4% 30 2756.9 19650.1
DATE 137 2.0% 41 29.9% 22 194.2 785.7
ADDED SINCE 26 0.4% 14 53.8% 22 45.8 50.6
PUB TYPE 84 1.2% 25 29.8% 16 40.5 63.9
SUBFILE 20 0.3% 7 35.0% 255 401.5 574.4
ID 3 0.0% 0 0.0% 1 1.0 0.0
ISSN 2 0.0% 2 100% 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 89 1.3% 26 29.2% 144 24827.9 78781.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 503 7.3% 247 49.1% 43 1533.5 10242.6
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 1,052 19.0% 499 47.4% 22 3378.3 28048.7
Single 4,485 81.0% 1,727 38.5% 38 2138.9 12305.1
PRESENT commands, by type:
MARC 49.9%
OPAC 26.9%