MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 11/01/00 through 11/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 220 4,071
2-4 a.m. 47 1,190
4-6 a.m. 23 288
6-8 a.m. 93 1,194
8-10 a.m. 427 3,068
10-12 a.m. 1,350 12,177
12-2 p.m. 1,840 18,346
2-4 p.m. 2,113 23,938
4-6 p.m. 1,742 27,301
6-8 p.m. 980 14,043
8-10 p.m. 880 6,867
10-12 p.m. 470 3,155
__________ _____________ _________________
Total: 10,185 115,638
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 15
Davis 13
Irvine 2
Los Angeles 8
Riverside 17
San Diego 103
San Francisco 9
Santa Barbara 9
Santa Cruz 1
Lawrence Berkeley 9
Lawrence Livermore 0
Los Alamos 1
MELWEB 4,925
Searchlight 4,160
Other - UC 886
Other-Network UC 27
_____
10,185
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4
Davis 1
Irvine 33
Los Angeles 5
Riverside 5
San Diego 111
San Francisco 1
Santa Barbara 10
Santa Cruz 32
Lawrence Berkeley 739
Lawrence Livermore 0
Los Alamos 2
MELWEB 105,627
Searchlight 4,750
Other - UC 4,278
Other-Network UC 40
_____
115,638
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 2.6
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) 0:10
Average session length (minutes:seconds) 8:07
Longest session recorded (minutes:seconds) 177:22
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 715.9
Retrievals per search - standard deviation 7323.9
Percent of searches completed with 0 results 50.3%
Percent of searches entered that are long 0.2%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 10,185 26.1%
PRESENT 22,451 57.5%
INIT or CLOSE 6,370 16.3%
OTHER 26 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 622 5.1% 426 68.5% 3 72.1 245.3
TITLE WORD 1,236 10.2% 610 49.4% 13 558.9 2106.5
EXACT TITLE 164 1.3% 111 67.7% 1 5.9 18.9
JOURNAL TITLE 195 1.6% 150 76.9% 83 2028.1 5594.0
EXACT JOURNAL 298 2.5% 66 22.1% 1,170 11004.4 20658.8
SUBJECT WORD 826 6.8% 493 59.7% 13 589.1 2924.8
EXACT SUBJECT 322 2.6% 76 23.6% 10 961.4 4126.0
KEYWORD 7,006 57.6% 3,491 49.8% 12 1110.1 10785.6
DATE 267 2.2% 90 33.7% 61 1223.9 3228.2
ADDED SINCE 98 0.8% 34 34.7% 9 13.5 18.7
PUB TYPE 103 0.8% 58 56.3% 85 241.3 362.6
SUBFILE 28 0.2% 15 53.6% 19 47.0 77.8
ID 16 0.1% 0 0.0% 1 1.0 0.0
ISSN 1 0.0% 1 100% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 8 8.0 0.0
ILLUS 2 0.0% 2 100% 0 0.0 0.0
ARTICLE 121 1.0% 37 30.6% 52 777.4 3242.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 818 6.7% 340 41.6% 13 990.2 4405.5
Other indexes 32 0.3% 18 56.3% 834 1494.2 1523.1
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 1,649 16.2% 717 43.5% 17 838.8 3613.1
Single 8,536 83.8% 4,407 51.6% 12 1576.6 11314.0
PRESENT commands, by type:
MARC 52.4%
OPAC 26.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w