MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 12/30/00 through 01/05/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 27 461
2-4 a.m. 6 14
4-6 a.m. 0 0
6-8 a.m. 6 178
8-10 a.m. 34 258
10-12 a.m. 105 1,954
12-2 p.m. 125 1,126
2-4 p.m. 111 583
4-6 p.m. 61 193
6-8 p.m. 29 525
8-10 p.m. 18 62
10-12 p.m. 19 208
__________ _____________ _________________
Total: 541 5,562
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 1
Los Angeles 8
Riverside 0
San Diego 6
San Francisco 1
Santa Barbara 0
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 182
Searchlight 303
Other - UC 33
Other-Network UC 4
_____
541
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 0
Irvine 10
Los Angeles 12
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 3
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 4,568
Searchlight 222
Other - UC 158
Other-Network UC 589
_____
5,562
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.7
Standard deviation in seconds 3.4
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) 0:07
Average session length (minutes:seconds) 4:24
Longest session recorded (minutes:seconds) 51:13
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 607.0
Retrievals per search - standard deviation 3176.1
Percent of searches completed with 0 results 50.8%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 541 22.0%
PRESENT 1,528 62.2%
INIT or CLOSE 382 15.6%
OTHER 5 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 42 6.6% 33 78.6% 4 69.9 195.8
TITLE WORD 43 6.8% 21 48.8% 18 153.7 355.7
EXACT TITLE 3 0.5% 2 66.7% 69 69.0 0.0
JOURNAL TITLE 16 2.5% 12 75.0% 258 921.8 1477.3
EXACT JOURNAL 12 1.9% 2 16.7% 2,235 11309.4 17189.7
SUBJECT WORD 37 5.8% 22 59.5% 7 384.7 1057.9
EXACT SUBJECT 9 1.4% 3 33.3% 18 647.5 1426.6
KEYWORD 398 62.5% 196 49.2% 22 982.3 2703.7
DATE 23 3.6% 10 43.5% 33 221.7 303.1
ADDED SINCE 10 1.6% 6 60.0% 5 12.5 17.9
PUB TYPE 1 0.2% 0 0.0% 4 4.0 0.0
SUBFILE 0 0.0% 0 0.0% 0 0.0 0.0
ID 0 0.0% 0 0.0% 0 0.0 0.0
ISSN 1 0.2% 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 10 1.6% 7 70.0% 30 23.7 16.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 32 5.0% 12 37.5% 15 780.8 2314.0
Other indexes 0 0.0% 0 0.0% 0 0.0 0.0
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 75 13.9% 37 49.3% 20 474.8 1696.6
Single 466 86.1% 238 51.1% 22 1361.1 4744.1
PRESENT commands, by type:
MARC 67.3%
OPAC 16.8%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w