MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 09/01/00 through 09/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 95 7,650
2-4 a.m. 51 225
4-6 a.m. 32 873
6-8 a.m. 58 906
8-10 a.m. 302 2,608
10-12 a.m. 813 5,780
12-2 p.m. 923 6,796
2-4 p.m. 1,078 10,847
4-6 p.m. 710 5,850
6-8 p.m. 295 1,343
8-10 p.m. 231 1,255
10-12 p.m. 163 1,499
__________ _____________ _________________
Total: 4,751 45,632
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 26
Davis 17
Irvine 0
Los Angeles 11
Riverside 1
San Diego 258
San Francisco 2
Santa Barbara 4
Santa Cruz 1
Lawrence Berkeley 5
Lawrence Livermore 2
Los Alamos 0
MELWEB 1,770
Searchlight 2,110
Other - UC 525
Other-Network UC 19
_____
4,751
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 45
Davis 1,544
Irvine 0
Los Angeles 85
Riverside 4
San Diego 58
San Francisco 0
Santa Barbara 104
Santa Cruz 0
Lawrence Berkeley 7
Lawrence Livermore 0
Los Alamos 0
MELWEB 32,411
Searchlight 8,554
Other - UC 2,538
Other-Network UC 282
_____
45,632
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 1.1
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) 0:07
Average session length (minutes:seconds) 6:42
Longest session recorded (minutes:seconds) 121:20
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1443.0
Retrievals per search - standard deviation 17464
Percent of searches completed with 0 results 52.6%
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 4,751 25.9%
PRESENT 10,240 55.7%
INIT or CLOSE 3,324 18.1%
OTHER 61 0.3%
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 346 6.3% 251 72.5% 5 100.5 270.8
TITLE WORD 534 9.7% 295 55.2% 18 529.8 1599.2
EXACT TITLE 52 0.9% 40 76.9% 2 5.5 5.4
JOURNAL TITLE 114 2.1% 77 67.5% 102 5003.0 15199.2
EXACT JOURNAL 136 2.5% 36 26.5% 1,374 9096.2 17480.1
SUBJECT WORD 337 6.1% 184 54.6% 15 1197.9 4952.4
EXACT SUBJECT 127 2.3% 48 37.8% 18 1157.3 3511.8
KEYWORD 3,344 60.9% 1,719 51.4% 16 3297.6 29229.6
DATE 107 1.9% 41 38.3% 9 83.2 194.7
ADDED SINCE 72 1.3% 44 61.1% 9 41.1 61.8
PUB TYPE 23 0.4% 14 60.9% 11 43.0 53.6
SUBFILE 1 0.0% 0 0.0% 11 11.0 0.0
ID 9 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 1 0.0% 0 0.0% 170 170.0 0.0
ARTICLE 39 0.7% 12 30.8% 33 1623.7 5399.6
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 244 4.4% 70 28.7% 6 569.0 3349.2
Other indexes 8 0.1% 2 25.0% 106 220.5 262.9
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 619 13.0% 275 44.4% 10 457.3 2837.3
Single 4,132 87.0% 2,226 53.9% 21 3514.4 27419.7
PRESENT commands, by type:
MARC 55.8%
OPAC 26.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w