MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/99 through 02/28/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 195 3,832
2-4 a.m. 103 2,346
4-6 a.m. 25 319
6-8 a.m. 81 487
8-10 a.m. 387 3,884
10-12 a.m. 1,076 15,213
12-2 p.m. 1,243 24,494
2-4 p.m. 1,439 29,876
4-6 p.m. 1,192 27,050
6-8 p.m. 662 17,367
8-10 p.m. 556 17,974
10-12 p.m. 319 4,620
__________ _____________ _________________
Total: 7,278 147,462
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 25
Davis 7
Irvine 8
Los Angeles 3
Riverside 2
San Diego 680
San Francisco 10
Santa Barbara 1
Santa Cruz 16
Lawrence Berkeley 1
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,766
Other - UC 749
Other-Network UC 10
_____
7,278
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 504
Davis 21
Irvine 82
Los Angeles 0
Riverside 0
San Diego 0
San Francisco 7
Santa Barbara 0
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 144,591
Other - UC 2,178
Other-Network UC 77
_____
147,462
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.0
Standard deviation in seconds 6.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.6
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 20:26
Average session length (minutes:seconds) 16:58
Longest session recorded (minutes:seconds) 157:24
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 2282.3
Retrievals per search - standard deviation 26787
Percent of searches completed with 0 results 43.7%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 7,278 18.6%
PRESENT 29,397 75.0%
INIT or CLOSE 2,416 6.2%
OTHER 117 0.3%
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 586 6.2% 407 69.5% 3 82.6 210.0
TITLE WORD 1,003 10.7% 580 57.8% 14 749.9 7003.1
EXACT TITLE 88 0.9% 81 92.0% 8 59.4 127.3
JOURNAL TITLE 326 3.5% 238 73.0% 123 9910.8 29283.0
EXACT JOURNAL 165 1.8% 49 29.7% 5,236 11291.3 14793.1
SUBJECT WORD 943 10.0% 609 64.6% 23 756.8 3592.7
EXACT SUBJECT 444 4.7% 156 35.1% 45 1799.8 8190.8
KEYWORD 4,430 47.1% 1,499 33.8% 49 4597.4 41466.6
DATE 268 2.9% 92 34.3% 22 248.4 886.9
ADDED SINCE 22 0.2% 19 86.4% 122 86.7 73.7
PUB TYPE 94 1.0% 59 62.8% 10 267.3 816.7
SUBFILE 14 0.1% 11 78.6% 154 140.7 122.5
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
SIC 3 0.0% 1 33.3% 111 110.5 143.5
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 103 1.1% 29 28.2% 78 1063.5 3205.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 909 9.7% 391 43.0% 44 1723.9 7567.0
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 1,764 24.2% 832 47.2% 30 1222.3 6538.9
Single 5,514 75.8% 2,352 42.7% 52 4893.0 40335.2
PRESENT commands, by type:
MARC 44.6%
OPAC 32.4%