MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/04/02 through 05/10/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 39 283
2-4 a.m. 30 362
4-6 a.m. 16 116
6-8 a.m. 33 14
8-10 a.m. 111 892
10-12 a.m. 271 894
12-2 p.m. 431 2,910
2-4 p.m. 509 2,269
4-6 p.m. 324 1,128
6-8 p.m. 283 2,892
8-10 p.m. 196 653
10-12 p.m. 142 741
__________ _____________ _________________
Total: 2,385 13,154
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 10
Irvine 0
Los Angeles 6
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 688
Searchlight 1,588
Other - UC 88
Other-Network UC 1
_____
2,385
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 23
Davis 0
Irvine 0
Los Angeles 7
Riverside 0
San Diego 0
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 12,214
Searchlight 259
Other - UC 651
Other-Network UC 0
_____
13,154
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.3
Standard deviation in seconds 0.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:03
Average session length (minutes:seconds) 4:05
Longest session recorded (minutes:seconds) 175:44
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 726.4
Retrievals per search - standard deviation 6784.8
Percent of searches completed with 0 results 58.4%
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 2,385 34.5%
PRESENT 2,614 37.8%
INIT or CLOSE 1,906 27.6%
OTHER 2 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 89 3.4% 62 69.7% 3 97.1 335.2
TITLE WORD 127 4.8% 71 55.9% 7 131.3 407.5
EXACT TITLE 14 0.5% 14 100% 0 0.0 0.0
JOURNAL TITLE 35 1.3% 31 88.6% 2 1459.5 2915.0
EXACT JOURNAL 51 1.9% 6 11.8% 971 7409.3 10111.2
SUBJECT WORD 77 2.9% 54 70.1% 17 318.4 977.8
EXACT SUBJECT 32 1.2% 13 40.6% 6 1283.5 4164.5
KEYWORD 1,998 75.8% 1,173 58.7% 14 1639.6 11093.3
DATE 18 0.7% 6 33.3% 28 532.1 1646.4
ADDED SINCE 6 0.2% 4 66.7% 32 31.5 30.4
PUB TYPE 14 0.5% 4 28.6% 19 77.6 129.4
SUBFILE 4 0.2% 4 100% 0 0.0 0.0
ID 3 0.1% 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 13 0.5% 7 53.8% 81 2240.7 5300.1
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 155 5.9% 59 38.1% 35 1594.5 6029.7
Other indexes 1 0.0% 0 0.0% 98 98.0 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 200 8.4% 83 41.5% 35 1373.0 5501.7
Single 2,185 91.6% 1,309 59.9% 11 1794.2 10925.7
PRESENT commands, by type:
MARC 48.7%
OPAC 30.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w