MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/99 through 12/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 135 4,443
2-4 a.m. 52 1,707
4-6 a.m. 50 239
6-8 a.m. 84 911
8-10 a.m. 253 3,301
10-12 a.m. 570 5,639
12-2 p.m. 767 11,443
2-4 p.m. 877 16,513
4-6 p.m. 655 10,040
6-8 p.m. 405 5,183
8-10 p.m. 336 3,988
10-12 p.m. 219 2,898
__________ _____________ _________________
Total: 4,403 66,305
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 3
Davis 5
Irvine 2
Los Angeles 2
Riverside 0
San Diego 959
San Francisco 3
Santa Barbara 2
Santa Cruz 108
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,762
Other - UC 535
Other-Network UC 22
_____
4,403
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 58
Irvine 1
Los Angeles 0
Riverside 0
San Diego 45
San Francisco 13
Santa Barbara 1
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 63,409
Other - UC 2,510
Other-Network UC 268
_____
66,305
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 1.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:02
Average session length (minutes:seconds) 9:40
Longest session recorded (minutes:seconds) 160:17
Average number of searches completed per session 0.0
Retrievals per search - median 2.0
Retrievals per search - average 1900.6
Retrievals per search - standard deviation 13478
Percent of searches completed with 0 results 41.9%
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 4,403 23.4%
PRESENT 12,112 64.5%
INIT or CLOSE 2,226 11.9%
OTHER 33 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 419 8.0% 284 67.8% 3 99.3 383.5
TITLE WORD 551 10.6% 245 44.5% 16 842.8 5064.2
EXACT TITLE 40 0.8% 30 75.0% 5 38.5 71.3
JOURNAL TITLE 108 2.1% 86 79.6% 193 10101.8 31172.2
EXACT JOURNAL 110 2.1% 35 31.8% 10,406 17415.2 22577.2
SUBJECT WORD 373 7.2% 225 60.3% 14 532.7 3248.4
EXACT SUBJECT 132 2.5% 49 37.1% 24 1042.0 3936.0
KEYWORD 2,875 55.2% 1,027 35.7% 26 3502.5 19475.0
DATE 146 2.8% 40 27.4% 21 130.6 266.8
ADDED SINCE 50 1.0% 21 42.0% 7 36.9 72.6
PUB TYPE 29 0.6% 19 65.5% 8 306.9 852.6
SUBFILE 9 0.2% 8 88.9% 25 25.0 0.0
ID 17 0.3% 0 0.0% 1 1.0 0.0
ISSN 2 0.0% 2 100% 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 64 1.2% 10 15.6% 51 3267.1 12338.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 277 5.3% 129 46.6% 18 2144.2 9439.9
Other indexes 9 0.2% 2 22.2% 43 123.4 233.1
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 649 14.7% 287 44.2% 20 1519.7 7901.8
Single 3,754 85.3% 1,556 41.4% 26 3556.9 18652.2
PRESENT commands, by type:
MARC 47.8%
OPAC 27.0%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w