MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/01 through 04/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 180 6,348
2-4 a.m. 96 3,063
4-6 a.m. 23 399
6-8 a.m. 70 612
8-10 a.m. 501 5,349
10-12 a.m. 1,115 8,817
12-2 p.m. 1,292 14,867
2-4 p.m. 1,597 11,204
4-6 p.m. 1,248 13,939
6-8 p.m. 687 7,822
8-10 p.m. 568 6,141
10-12 p.m. 439 5,063
__________ _____________ _________________
Total: 7,816 83,624
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 4
Davis 24
Irvine 6
Los Angeles 51
Riverside 3
San Diego 152
San Francisco 7
Santa Barbara 1
Santa Cruz 6
Lawrence Berkeley 15
Lawrence Livermore 2
Los Alamos 0
MELWEB 3,461
Searchlight 3,583
Other - UC 469
Other-Network UC 32
_____
7,816
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 16
Davis 480
Irvine 23
Los Angeles 7
Riverside 5
San Diego 67
San Francisco 247
Santa Barbara 0
Santa Cruz 1
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 0
MELWEB 73,450
Searchlight 5,805
Other - UC 3,213
Other-Network UC 308
_____
83,624
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 1.7
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 7:12
Longest session recorded (minutes:seconds) 143:35
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1072.2
Retrievals per search - standard deviation 10856
Percent of searches completed with 0 results 52.0%
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 7,816 26.8%
PRESENT 15,988 54.9%
INIT or CLOSE 5,317 18.3%
OTHER 12 0.0%
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 476 5.2% 381 80.0% 3 54.2 202.0
TITLE WORD 808 8.8% 417 51.6% 12 924.4 5288.0
EXACT TITLE 65 0.7% 55 84.6% 2 29.8 82.1
JOURNAL TITLE 187 2.0% 136 72.7% 51 3154.1 7926.1
EXACT JOURNAL 300 3.3% 35 11.7% 2,346 10183.2 16454.2
SUBJECT WORD 480 5.2% 304 63.3% 10 213.0 716.8
EXACT SUBJECT 162 1.8% 46 28.4% 69 1915.5 7273.1
KEYWORD 5,673 62.0% 2,925 51.6% 14 1786.2 17074.0
DATE 154 1.7% 58 37.7% 28 196.5 443.6
ADDED SINCE 52 0.6% 23 44.2% 9 33.7 51.0
PUB TYPE 39 0.4% 30 76.9% 27 273.6 670.8
SUBFILE 27 0.3% 14 51.9% 25 215.4 494.5
ID 11 0.1% 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 5 0.1% 4 80.0% 95 95.0 0.0
ARTICLE 58 0.6% 19 32.8% 82 486.7 1403.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 635 6.9% 226 35.6% 9 2620.9 14859.2
Other indexes 12 0.1% 5 41.7% 1 1243.6 1632.2
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 1,140 14.6% 524 46.0% 14 1806.1 12161.4
Single 6,676 85.4% 3,542 53.1% 17 2319.0 16179.6
PRESENT commands, by type:
MARC 46.2%
OPAC 29.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w