MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/00 through 05/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 135 1,787
2-4 a.m. 35 1,109
4-6 a.m. 28 962
6-8 a.m. 51 372
8-10 a.m. 313 6,273
10-12 a.m. 760 7,767
12-2 p.m. 1,003 8,119
2-4 p.m. 1,192 15,828
4-6 p.m. 919 15,945
6-8 p.m. 569 8,212
8-10 p.m. 468 8,288
10-12 p.m. 374 7,318
__________ _____________ _________________
Total: 5,847 81,980
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 21
Irvine 1
Los Angeles 7
Riverside 0
San Diego 344
San Francisco 0
Santa Barbara 1
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,167
Searchlight 1,054
Other - UC 201
Other-Network UC 20
_____
5,847
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 24
Davis 23
Irvine 0
Los Angeles 1
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 78,883
Searchlight 2,155
Other - UC 649
Other-Network UC 244
_____
81,980
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.9
Standard deviation in seconds 3.6
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.6
Standard deviation in seconds 1.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:05
Average session length (minutes:seconds) 8:46
Longest session recorded (minutes:seconds) 124:52
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1032.3
Retrievals per search - standard deviation 11814
Percent of searches completed with 0 results 49.0%
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 5,847 23.9%
PRESENT 14,983 61.3%
INIT or CLOSE 3,577 14.6%
OTHER 34 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 375 5.3% 274 73.1% 4 66.8 213.7
TITLE WORD 554 7.8% 276 49.8% 9 241.8 1012.5
EXACT TITLE 56 0.8% 48 85.7% 42 721.9 1871.1
JOURNAL TITLE 134 1.9% 90 67.2% 7 894.2 2296.2
EXACT JOURNAL 125 1.8% 27 21.6% 2,735 11008.8 16878.3
SUBJECT WORD 537 7.5% 309 57.5% 29 335.2 2129.5
EXACT SUBJECT 170 2.4% 63 37.1% 33 1093.0 4700.4
KEYWORD 4,231 59.3% 1,953 46.2% 17 2038.4 18375.9
DATE 103 1.4% 28 27.2% 21 212.5 630.4
ADDED SINCE 30 0.4% 18 60.0% 9 27.5 43.6
PUB TYPE 43 0.6% 11 25.6% 13 476.0 1787.2
SUBFILE 12 0.2% 6 50.0% 71 774.3 1518.4
ID 1 0.0% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 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 97 1.4% 25 25.8% 162 740.9 1358.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 651 9.1% 212 32.6% 26 1401.2 8184.5
Other indexes 17 0.2% 9 52.9% 577 1611.1 3165.1
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 1,066 18.2% 414 38.8% 26 1046.6 6748.3
Single 4,781 81.8% 2,450 51.2% 16 2296.6 18290.3
PRESENT commands, by type:
MARC 45.3%
OPAC 33.2%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w