MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/99 through 09/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 104 1,069
2-4 a.m. 52 1,718
4-6 a.m. 57 113
6-8 a.m. 73 339
8-10 a.m. 355 1,782
10-12 a.m. 778 7,748
12-2 p.m. 755 7,028
2-4 p.m. 932 15,610
4-6 p.m. 576 8,144
6-8 p.m. 313 3,634
8-10 p.m. 199 2,806
10-12 p.m. 167 1,406
__________ _____________ _________________
Total: 4,361 51,397
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 7
Davis 6
Irvine 1
Los Angeles 4
Riverside 5
San Diego 1,196
San Francisco 8
Santa Barbara 18
Santa Cruz 196
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,884
Other - UC 1,022
Other-Network UC 14
_____
4,361
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 86
Davis 133
Irvine 3
Los Angeles 36
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 101
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 45,769
Other - UC 4,529
Other-Network UC 740
_____
51,397
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 2.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 0.8
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:01
Average session length (minutes:seconds) 8:28
Longest session recorded (minutes:seconds) 153:18
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1265.0
Retrievals per search - standard deviation 11451
Percent of searches completed with 0 results 42.3%
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 4,361 25.4%
PRESENT 10,410 60.5%
INIT or CLOSE 2,395 13.9%
OTHER 28 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 349 7.1% 235 67.3% 5 151.8 520.3
TITLE WORD 671 13.7% 360 53.6% 32 1192.9 5123.5
EXACT TITLE 109 2.2% 92 84.4% 1 1.2 0.7
JOURNAL TITLE 91 1.9% 66 72.5% 462 9793.4 14435.6
EXACT JOURNAL 73 1.5% 16 21.9% 8,619 14348.5 15361.5
SUBJECT WORD 386 7.9% 236 61.1% 22 579.2 2837.2
EXACT SUBJECT 167 3.4% 64 38.3% 7 928.1 3096.5
KEYWORD 2,627 53.5% 871 33.2% 12 2210.9 17325.2
DATE 72 1.5% 19 26.4% 37 367.2 1081.5
ADDED SINCE 38 0.8% 20 52.6% 10 31.9 42.7
PUB TYPE 23 0.5% 10 43.5% 33 73.5 132.4
SUBFILE 6 0.1% 4 66.7% 930 930.0 86.3
ID 35 0.7% 9 25.7% 1 1.0 0.0
ISSN 2 0.0% 2 100% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 7,056 7056.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 62 1.3% 13 21.0% 256 2592.7 9504.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 193 3.9% 72 37.3% 53 2792.5 9093.4
Other indexes 9 0.2% 5 55.6% 1 1.3 0.5
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 471 10.8% 207 43.9% 43 1758.9 7369.6
Single 3,890 89.2% 1,636 42.1% 12 2241.5 15656.5
PRESENT commands, by type:
MARC 53.0%
OPAC 24.3%