MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/01/00 through 10/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 259 3,492
2-4 a.m. 79 717
4-6 a.m. 33 1,054
6-8 a.m. 69 1,301
8-10 a.m. 596 4,640
10-12 a.m. 1,486 15,833
12-2 p.m. 1,756 14,589
2-4 p.m. 2,068 22,113
4-6 p.m. 1,497 14,100
6-8 p.m. 941 10,588
8-10 p.m. 768 7,748
10-12 p.m. 453 5,959
__________ _____________ _________________
Total: 10,005 102,134
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 9
Davis 28
Irvine 4
Los Angeles 5
Riverside 1
San Diego 194
San Francisco 6
Santa Barbara 10
Santa Cruz 10
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,027
Searchlight 3,836
Other - UC 852
Other-Network UC 23
_____
10,005
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 171
Irvine 0
Los Angeles 2
Riverside 0
San Diego 33
San Francisco 6
Santa Barbara 118
Santa Cruz 39
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 91,159
Searchlight 4,036
Other - UC 5,422
Other-Network UC 1,148
_____
102,134
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 2.4
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 8:33
Longest session recorded (minutes:seconds) 142:57
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1287.0
Retrievals per search - standard deviation 10948
Percent of searches completed with 0 results 46.6%
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 10,005 26.0%
PRESENT 22,315 57.9%
INIT or CLOSE 6,136 15.9%
OTHER 55 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 538 4.5% 367 68.2% 5 96.4 292.0
TITLE WORD 1,139 9.4% 600 52.7% 23 688.1 4482.4
EXACT TITLE 101 0.8% 90 89.1% 1 14.5 38.8
JOURNAL TITLE 266 2.2% 177 66.5% 91 10536.4 27294.1
EXACT JOURNAL 290 2.4% 55 19.0% 2,572 20427.0 28101.6
SUBJECT WORD 820 6.8% 429 52.3% 16 305.5 1132.7
EXACT SUBJECT 310 2.6% 99 31.9% 30 1124.7 4374.0
KEYWORD 6,985 57.9% 3,099 44.4% 18 1655.1 14624.6
DATE 179 1.5% 58 32.4% 36 294.7 1006.8
ADDED SINCE 128 1.1% 42 32.8% 5 10.6 19.3
PUB TYPE 68 0.6% 36 52.9% 26 323.9 810.0
SUBFILE 24 0.2% 19 79.2% 8 14.4 15.8
ID 20 0.2% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
SIC 1 0.0% 1 100% 0 0.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 124 1.0% 31 25.0% 29 291.9 771.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 1,052 8.7% 311 29.6% 5 1582.0 8487.6
Other indexes 11 0.1% 6 54.5% 445 2317.6 3325.0
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 1,690 16.9% 591 35.0% 12 1155.9 7009.3
Single 8,315 83.1% 4,069 48.9% 23 2733.3 16305.5
PRESENT commands, by type:
MARC 50.2%
OPAC 27.9%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w