MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/00 through 03/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 238 4,477
2-4 a.m. 111 3,022
4-6 a.m. 63 1,498
6-8 a.m. 109 1,002
8-10 a.m. 550 8,746
10-12 a.m. 1,218 14,781
12-2 p.m. 1,759 18,488
2-4 p.m. 1,836 20,021
4-6 p.m. 1,484 19,155
6-8 p.m. 852 11,477
8-10 p.m. 710 9,911
10-12 p.m. 518 4,515
__________ _____________ _________________
Total: 9,448 117,093
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 29
Davis 18
Irvine 0
Los Angeles 10
Riverside 1
San Diego 1,338
San Francisco 2
Santa Barbara 0
Santa Cruz 2
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 7,142
Searchlight 131
Other - UC 734
Other-Network UC 41
_____
9,448
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,485
Davis 18
Irvine 0
Los Angeles 61
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 105,322
Searchlight 3,773
Other - UC 3,157
Other-Network UC 277
_____
117,093
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 3.3
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.4
Standard deviation in seconds 1.1
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:02
Average session length (minutes:seconds) 6:53
Longest session recorded (minutes:seconds) 253:13
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 763.8
Retrievals per search - standard deviation 8460.0
Percent of searches completed with 0 results 48.1%
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 9,448 23.1%
PRESENT 25,853 63.2%
INIT or CLOSE 5,572 13.6%
OTHER 47 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 528 4.8% 356 67.4% 3 88.0 445.0
TITLE WORD 890 8.1% 479 53.8% 10 544.6 3154.8
EXACT TITLE 133 1.2% 113 85.0% 1 4.8 6.4
JOURNAL TITLE 220 2.0% 161 73.2% 45 1782.5 5628.3
EXACT JOURNAL 169 1.5% 57 33.7% 2,134 10198.4 15074.1
SUBJECT WORD 746 6.8% 501 67.2% 16 747.9 3845.5
EXACT SUBJECT 377 3.4% 127 33.7% 34 1511.4 9022.0
KEYWORD 6,816 61.8% 3,041 44.6% 20 1377.5 12682.3
DATE 173 1.6% 56 32.4% 19 137.7 375.1
ADDED SINCE 51 0.5% 28 54.9% 7 24.0 41.9
PUB TYPE 72 0.7% 35 48.6% 43 241.9 439.8
SUBFILE 36 0.3% 16 44.4% 13 112.1 411.1
ID 23 0.2% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 1 1.0 0.0
ILLUS 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 122 1.1% 19 15.6% 102 2835.2 11437.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 646 5.9% 253 39.2% 21 873.4 4201.8
Other indexes 16 0.1% 6 37.5% 75 466.4 1015.5
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 1,344 14.2% 586 43.6% 19 892.1 5250.2
Single 8,104 85.8% 3,963 48.9% 19 1579.3 12528.6
PRESENT commands, by type:
MARC 54.3%
OPAC 26.1%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w