MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/01/01 through 01/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 143 4,234
2-4 a.m. 54 1,900
4-6 a.m. 7 1,485
6-8 a.m. 56 894
8-10 a.m. 237 2,207
10-12 a.m. 871 10,060
12-2 p.m. 1,073 13,378
2-4 p.m. 1,191 15,179
4-6 p.m. 817 7,396
6-8 p.m. 485 4,709
8-10 p.m. 377 4,084
10-12 p.m. 184 1,406
__________ _____________ _________________
Total: 5,495 66,932
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 5
Davis 4
Irvine 8
Los Angeles 28
Riverside 2
San Diego 62
San Francisco 16
Santa Barbara 1
Santa Cruz 3
Lawrence Berkeley 3
Lawrence Livermore 1
Los Alamos 0
MELWEB 2,529
Searchlight 2,583
Other - UC 227
Other-Network UC 23
_____
5,495
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 0
Davis 1
Irvine 113
Los Angeles 498
Riverside 44
San Diego 0
San Francisco 5
Santa Barbara 0
Santa Cruz 3
Lawrence Berkeley 18
Lawrence Livermore 0
Los Alamos 0
MELWEB 57,683
Searchlight 5,198
Other - UC 1,618
Other-Network UC 1,751
_____
66,932
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.6
Standard deviation in seconds 2.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
_________________________________________
Median session length (minutes:seconds) 0:09
Average session length (minutes:seconds) 7:08
Longest session recorded (minutes:seconds) 115:02
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 1079.2
Retrievals per search - standard deviation 11150
Percent of searches completed with 0 results 47.7%
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 5,495 23.1%
PRESENT 14,572 61.2%
INIT or CLOSE 3,726 15.7%
OTHER 9 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 334 5.2% 232 69.5% 4 53.5 170.7
TITLE WORD 466 7.3% 236 50.6% 13 442.0 2543.8
EXACT TITLE 47 0.7% 40 85.1% 1 10.9 25.6
JOURNAL TITLE 130 2.0% 97 74.6% 40 1779.1 3801.1
EXACT JOURNAL 135 2.1% 28 20.7% 3,114 13554.7 20268.6
SUBJECT WORD 279 4.4% 158 56.6% 27 1007.1 4374.3
EXACT SUBJECT 166 2.6% 35 21.1% 31 724.3 2760.2
KEYWORD 4,141 64.8% 1,923 46.4% 20 1839.4 16623.1
DATE 117 1.8% 43 36.8% 20 337.2 1223.2
ADDED SINCE 50 0.8% 22 44.0% 8 26.3 49.4
PUB TYPE 33 0.5% 12 36.4% 14 74.7 105.2
SUBFILE 12 0.2% 8 66.7% 33 301.8 558.1
ID 3 0.0% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 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 38 0.6% 14 36.8% 63 604.5 1176.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 434 6.8% 146 33.6% 14 1513.6 6580.1
Other indexes 4 0.1% 1 25.0% 23,468 15645.7 13548.7
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 748 13.6% 301 40.2% 17 1099.6 5433.9
Single 4,747 86.4% 2,319 48.9% 22 2240.0 16535.0
PRESENT commands, by type:
MARC 53.0%
OPAC 27.7%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w