MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 10/13/01 through 10/19/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 23 43
2-4 a.m. 19 457
4-6 a.m. 7 143
6-8 a.m. 32 254
8-10 a.m. 89 193
10-12 a.m. 208 2,541
12-2 p.m. 331 1,035
2-4 p.m. 319 1,470
4-6 p.m. 284 1,532
6-8 p.m. 156 1,139
8-10 p.m. 116 294
10-12 p.m. 53 249
__________ _____________ _________________
Total: 1,637 9,350
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 1
Davis 2
Irvine 1
Los Angeles 4
Riverside 0
San Diego 14
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 862
Other - UC 751
Other-Network UC 2
_____
1,637
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 0
Los Angeles 3
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 9,346
Other-Network UC 1
_____
9,350
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 1.2
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:08
Average session length (minutes:seconds) 5:58
Longest session recorded (minutes:seconds) 110:21
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 994.0
Retrievals per search - standard deviation 8016.0
Percent of searches completed with 0 results 49.7%
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 1,637 34.9%
PRESENT 1,791 38.2%
INIT or CLOSE 1,261 26.9%
OTHER 3 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 65 3.6% 49 75.4% 3 6.4 6.7
TITLE WORD 139 7.6% 70 50.4% 10 382.7 1359.6
EXACT TITLE 18 1.0% 17 94.4% 4 4.0 0.0
JOURNAL TITLE 33 1.8% 31 93.9% 39,055 39054.5 55217.3
EXACT JOURNAL 78 4.3% 6 7.7% 1,380 7715.1 11283.0
SUBJECT WORD 63 3.5% 44 69.8% 10 5662.7 20349.1
EXACT SUBJECT 18 1.0% 6 33.3% 12 202.3 601.2
KEYWORD 1,249 68.5% 618 49.5% 17 1368.0 11124.5
DATE 5 0.3% 3 60.0% 9 9.0 11.3
ADDED SINCE 13 0.7% 6 46.2% 6 10.3 15.5
PUB TYPE 12 0.7% 9 75.0% 15 87.7 135.5
SUBFILE 6 0.3% 0 0.0% 19 157.8 215.5
ID 6 0.3% 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 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 8 0.4% 2 25.0% 148 532.3 850.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 110 6.0% 45 40.9% 10 96.6 215.2
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 161 9.8% 77 47.8% 13 182.0 677.7
Single 1,476 90.2% 736 49.9% 20 2178.2 11816.6
PRESENT commands, by type:
MARC 49.0%
OPAC 30.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w