MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 07/01/00 through 07/31/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 125 4,100
2-4 a.m. 46 2,734
4-6 a.m. 12 337
6-8 a.m. 57 375
8-10 a.m. 398 2,873
10-12 a.m. 846 7,779
12-2 p.m. 914 8,450
2-4 p.m. 1,208 12,389
4-6 p.m. 848 8,164
6-8 p.m. 329 2,949
8-10 p.m. 183 1,690
10-12 p.m. 135 1,497
__________ _____________ _________________
Total: 5,101 53,337
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 11
Davis 10
Irvine 3
Los Angeles 2
Riverside 2
San Diego 525
San Francisco 11
Santa Barbara 16
Santa Cruz 6
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,202
Searchlight 1,047
Other - UC 250
Other-Network UC 16
_____
5,101
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 626
Davis 0
Irvine 32
Los Angeles 0
Riverside 9
San Diego 0
San Francisco 1
Santa Barbara 57
Santa Cruz 1
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 44,819
Searchlight 5,976
Other - UC 1,750
Other-Network UC 66
_____
53,337
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 2.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.5
Standard deviation in seconds 1.5
2.0 COMPUTER ARTICLES Database Detailed Statistics
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Median session length (minutes:seconds) 0:06
Average session length (minutes:seconds) 6:38
Longest session recorded (minutes:seconds) 145:31
Average number of searches completed per session 0.0
Retrievals per search - median 1.0
Retrievals per search - average 906.1
Retrievals per search - standard deviation 10966
Percent of searches completed with 0 results 47.0%
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 5,101 26.6%
PRESENT 10,489 54.8%
INIT or CLOSE 3,534 18.5%
OTHER 16 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 330 5.6% 235 71.2% 5 49.1 147.8
TITLE WORD 438 7.4% 221 50.5% 13 686.0 3328.0
EXACT TITLE 59 1.0% 44 74.6% 2 29.5 90.4
JOURNAL TITLE 127 2.2% 93 73.2% 112 8472.1 32694.2
EXACT JOURNAL 104 1.8% 31 29.8% 1,125 7371.3 11238.9
SUBJECT WORD 278 4.7% 152 54.7% 12 360.3 1244.3
EXACT SUBJECT 153 2.6% 39 25.5% 19 1262.5 6689.1
KEYWORD 3,808 64.5% 1,712 45.0% 17 1645.9 16247.3
DATE 97 1.6% 35 36.1% 19 105.4 228.1
ADDED SINCE 48 0.8% 30 62.5% 12 42.4 56.0
PUB TYPE 36 0.6% 21 58.3% 13 214.8 518.5
SUBFILE 7 0.1% 3 42.9% 464 686.8 769.0
ID 5 0.1% 0 0.0% 1 1.0 0.0
ISSN 3 0.1% 3 100% 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 100 1.7% 15 15.0% 63 491.6 1684.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 300 5.1% 110 36.7% 65 1326.3 5034.6
Other indexes 9 0.2% 3 33.3% 49 2090.5 3199.6
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 671 13.2% 276 41.1% 30 784.3 3628.1
Single 4,430 86.8% 2,122 47.9% 16 1868.3 16180.3
PRESENT commands, by type:
MARC 49.6%
OPAC 28.6%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w