MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/02 through 04/30/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 275 1,507
2-4 a.m. 201 1,183
4-6 a.m. 38 19
6-8 a.m. 108 218
8-10 a.m. 446 1,052
10-12 a.m. 1,025 3,469
12-2 p.m. 1,407 5,370
2-4 p.m. 1,824 6,516
4-6 p.m. 1,355 9,959
6-8 p.m. 833 6,179
8-10 p.m. 715 5,455
10-12 p.m. 627 4,355
__________ _____________ _________________
Total: 8,854 45,282
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 6
Davis 92
Irvine 12
Los Angeles 6
Riverside 5
San Diego 2
San Francisco 0
Santa Barbara 7
Santa Cruz 4
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,185
Searchlight 6,029
Other - UC 482
Other-Network UC 21
_____
8,854
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6
Davis 46
Irvine 2
Los Angeles 89
Riverside 252
San Diego 51
San Francisco 0
Santa Barbara 187
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 41,711
Searchlight 298
Other - UC 2,555
Other-Network UC 85
_____
45,282
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 3:35
Longest session recorded (minutes:seconds) 97:02
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 553.1
Retrievals per search - standard deviation 4277.5
Percent of searches completed with 0 results 57.7%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 8,854 35.7%
PRESENT 8,627 34.8%
INIT or CLOSE 7,303 29.4%
OTHER 14 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 356 3.8% 262 73.6% 3 64.2 356.3
TITLE WORD 550 5.8% 308 56.0% 11 541.5 3485.6
EXACT TITLE 50 0.5% 50 100% 0 0.0 0.0
JOURNAL TITLE 102 1.1% 73 71.6% 38 1184.7 4222.3
EXACT JOURNAL 275 2.9% 27 9.8% 766 6459.9 14779.5
SUBJECT WORD 339 3.6% 232 68.4% 11 271.2 868.1
EXACT SUBJECT 97 1.0% 28 28.9% 65 1308.5 3469.7
KEYWORD 7,283 76.8% 4,284 58.8% 16 1020.3 5634.2
DATE 78 0.8% 24 30.8% 40 149.5 336.1
ADDED SINCE 24 0.3% 17 70.8% 10 12.9 15.3
PUB TYPE 15 0.2% 4 26.7% 12 21.5 31.0
SUBFILE 7 0.1% 4 57.1% 19 139.0 207.8
ID 15 0.2% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 23 0.2% 8 34.8% 81 296.0 398.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 269 2.8% 109 40.5% 32 1121.7 6941.9
Other indexes 3 0.0% 2 66.7% 2 2.0 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 560 6.3% 280 50.0% 19 883.3 6026.8
Single 8,294 93.7% 4,831 58.2% 18 1342.6 6540.5
PRESENT commands, by type:
MARC 48.8%
OPAC 31.4%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w