MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/99 through 04/30/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 173 2,422
2-4 a.m. 89 1,335
4-6 a.m. 68 349
6-8 a.m. 89 662
8-10 a.m. 470 9,126
10-12 a.m. 1,026 16,990
12-2 p.m. 1,478 21,674
2-4 p.m. 1,505 25,901
4-6 p.m. 1,064 17,001
6-8 p.m. 746 15,734
8-10 p.m. 560 9,990
10-12 p.m. 414 5,040
__________ _____________ _________________
Total: 7,682 126,224
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 30
Davis 7
Irvine 15
Los Angeles 7
Riverside 0
San Diego 942
San Francisco 5
Santa Barbara 4
Santa Cruz 135
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 1
MELWEB 5,177
Other - UC 1,338
Other-Network UC 19
_____
7,682
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 14
Davis 30
Irvine 550
Los Angeles 85
Riverside 0
San Diego 43
San Francisco 328
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 10
MELWEB 117,935
Other - UC 7,162
Other-Network UC 67
_____
126,224
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.1
Standard deviation in seconds 5.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.9
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 1:37
Average session length (minutes:seconds) 14:20
Longest session recorded (minutes:seconds) 136:19
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 2776.4
Retrievals per search - standard deviation 26152
Percent of searches completed with 0 results 44.9%
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 7,681 20.9%
PRESENT 26,286 71.7%
INIT or CLOSE 2,675 7.3%
OTHER 40 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 579 5.9% 401 69.3% 3 134.7 501.3
TITLE WORD 1,283 13.2% 713 55.6% 18 991.2 7433.1
EXACT TITLE 124 1.3% 111 89.5% 1 36.9 88.9
JOURNAL TITLE 208 2.1% 154 74.0% 87 7323.7 23911.1
EXACT JOURNAL 138 1.4% 26 18.8% 9,458 15777.3 18290.4
SUBJECT WORD 1,099 11.3% 639 58.1% 23 2106.5 16199.6
EXACT SUBJECT 299 3.1% 95 31.8% 44 1383.0 4228.9
KEYWORD 4,494 46.1% 1,618 36.0% 39 6034.2 41492.3
DATE 254 2.6% 96 37.8% 42 317.7 780.4
ADDED SINCE 65 0.7% 50 76.9% 105 131.5 190.0
PUB TYPE 70 0.7% 49 70.0% 11 112.3 352.0
SUBFILE 19 0.2% 14 73.7% 86 5265.0 11475.5
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 3 0.0% 2 66.7% 1 1.0 0.0
SIC 3 0.0% 2 66.7% 39,942 39942.0 0.0
ILLUS 1 0.0% 0 0.0% 2 2.0 0.0
ARTICLE 208 2.1% 79 38.0% 54 506.7 2255.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 895 9.2% 351 39.2% 74 3512.2 15114.0
Other indexes 3 0.0% 2 66.7% 940 940.0 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 1,558 20.3% 677 43.5% 38 2355.7 12038.8
Single 6,123 79.7% 2,772 45.3% 33 5745.3 38900.4
PRESENT commands, by type:
MARC 48.6%
OPAC 31.6%