MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/01 through 05/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 247 6,292
2-4 a.m. 158 4,590
4-6 a.m. 50 646
6-8 a.m. 95 1,547
8-10 a.m. 477 5,642
10-12 a.m. 1,338 12,390
12-2 p.m. 1,705 24,035
2-4 p.m. 1,989 24,811
4-6 p.m. 1,551 18,529
6-8 p.m. 953 20,769
8-10 p.m. 705 11,940
10-12 p.m. 518 4,611
__________ _____________ _________________
Total: 9,786 135,802
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 9
Davis 43
Irvine 37
Los Angeles 57
Riverside 0
San Diego 45
San Francisco 3
Santa Barbara 8
Santa Cruz 3
Lawrence Berkeley 2
Lawrence Livermore 0
Los Alamos 0
MELWEB 5,311
Searchlight 4,015
Other - UC 249
Other-Network UC 4
_____
9,786
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 77
Davis 231
Irvine 67
Los Angeles 555
Riverside 0
San Diego 3
San Francisco 0
Santa Barbara 0
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 128,606
Searchlight 4,830
Other - UC 1,433
Other-Network UC 0
_____
135,802
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 2.3
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) 0:11
Average session length (minutes:seconds) 8:40
Longest session recorded (minutes:seconds) 193:07
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1025.3
Retrievals per search - standard deviation 7332.0
Percent of searches completed with 0 results 51.3%
Percent of searches entered that are long 0.1%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 9,786 23.6%
PRESENT 25,388 61.2%
INIT or CLOSE 6,182 14.9%
OTHER 126 0.3%
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 500 4.2% 369 73.8% 3 56.9 196.4
TITLE WORD 805 6.8% 456 56.6% 6 336.4 1553.3
EXACT TITLE 65 0.5% 55 84.6% 1 64.1 197.1
JOURNAL TITLE 206 1.7% 153 74.3% 323 9611.2 23045.0
EXACT JOURNAL 384 3.2% 47 12.2% 3,798 14547.3 22923.8
SUBJECT WORD 662 5.6% 442 66.8% 14 608.4 2977.0
EXACT SUBJECT 226 1.9% 54 23.9% 27 1250.9 4040.3
KEYWORD 7,368 62.1% 3,724 50.5% 11 1139.4 8204.4
DATE 226 1.9% 77 34.1% 86 252.3 675.7
ADDED SINCE 64 0.5% 47 73.4% 18 58.4 85.5
PUB TYPE 50 0.4% 29 58.0% 7 312.4 1058.5
SUBFILE 10 0.1% 6 60.0% 71 164.0 223.2
ID 2 0.0% 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 165 1.4% 30 18.2% 72 414.2 815.3
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 1,125 9.5% 389 34.6% 8 2639.6 12184.7
Other indexes 9 0.1% 2 22.2% 452 765.7 1006.1
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 1,777 18.2% 700 39.4% 15 1862.3 10138.7
Single 8,009 81.8% 4,323 54.0% 15 2178.0 10477.0
PRESENT commands, by type:
MARC 46.7%
OPAC 29.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w