MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 01/27/01 through 02/02/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 43 1,476
2-4 a.m. 15 178
4-6 a.m. 3 93
6-8 a.m. 26 422
8-10 a.m. 78 862
10-12 a.m. 332 4,019
12-2 p.m. 481 7,657
2-4 p.m. 445 5,798
4-6 p.m. 267 2,380
6-8 p.m. 182 3,385
8-10 p.m. 180 1,563
10-12 p.m. 83 930
__________ _____________ _________________
Total: 2,135 28,763
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 4
Los Angeles 4
Riverside 0
San Diego 13
San Francisco 7
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,106
Searchlight 928
Other - UC 65
Other-Network UC 5
_____
2,135
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 2
Los Angeles 267
Riverside 0
San Diego 0
San Francisco 5
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 27,728
Searchlight 268
Other - UC 486
Other-Network UC 7
_____
28,763
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 3.1
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
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Median session length (minutes:seconds) 0:10
Average session length (minutes:seconds) 8:16
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 1197.6
Retrievals per search - standard deviation 10007
Percent of searches completed with 0 results 46.0%
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 2,135 23.3%
PRESENT 5,648 61.5%
INIT or CLOSE 1,394 15.2%
OTHER 4 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 128 5.0% 86 67.2% 5 45.7 99.8
TITLE WORD 188 7.3% 109 58.0% 7 1843.5 11518.0
EXACT TITLE 17 0.7% 14 82.4% 2 15.0 23.4
JOURNAL TITLE 49 1.9% 41 83.7% 27 277.5 694.0
EXACT JOURNAL 65 2.5% 14 21.5% 876 6450.2 14464.1
SUBJECT WORD 121 4.7% 72 59.5% 32 1178.9 5572.5
EXACT SUBJECT 93 3.6% 18 19.4% 31 638.4 3028.4
KEYWORD 1,563 60.6% 685 43.8% 21 2223.0 14578.8
DATE 63 2.4% 29 46.0% 66 523.9 1651.4
ADDED SINCE 14 0.5% 6 42.9% 7 7.5 7.2
PUB TYPE 18 0.7% 10 55.6% 31 98.1 145.2
SUBFILE 15 0.6% 11 73.3% 86 329.5 541.6
ID 0 0.0% 0 0.0% 0 0.0 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 6 0.2% 1 16.7% 19 668.0 1275.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 236 9.2% 95 40.3% 40 2068.3 8604.1
Other indexes 3 0.1% 1 33.3% 23,468 23468.0 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 368 17.2% 175 47.6% 39 1686.6 7565.5
Single 1,767 82.8% 807 45.7% 21 2324.3 14442.4
PRESENT commands, by type:
MARC 48.1%
OPAC 31.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w