MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 06/01/01 through 06/30/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 151 4,416
2-4 a.m. 88 1,374
4-6 a.m. 25 1,441
6-8 a.m. 70 445
8-10 a.m. 302 2,580
10-12 a.m. 782 4,583
12-2 p.m. 803 6,755
2-4 p.m. 1,039 8,677
4-6 p.m. 721 7,125
6-8 p.m. 346 2,229
8-10 p.m. 331 4,335
10-12 p.m. 244 2,140
__________ _____________ _________________
Total: 4,902 46,100
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 28
Davis 22
Irvine 4
Los Angeles 49
Riverside 3
San Diego 54
San Francisco 13
Santa Barbara 10
Santa Cruz 0
Lawrence Berkeley 3
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,665
Searchlight 2,395
Other - UC 634
Other-Network UC 22
_____
4,902
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 88
Davis 13
Irvine 35
Los Angeles 12
Riverside 0
San Diego 96
San Francisco 3
Santa Barbara 52
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 31,059
Searchlight 2,499
Other - UC 12,211
Other-Network UC 32
_____
46,100
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 0.5
Standard deviation in seconds 1.4
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) 0:09
Average session length (minutes:seconds) 6:23
Longest session recorded (minutes:seconds) 114:37
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 922.4
Retrievals per search - standard deviation 8117.7
Percent of searches completed with 0 results 55.1%
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 4,902 28.6%
PRESENT 8,821 51.4%
INIT or CLOSE 3,424 20.0%
OTHER 11 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 340 6.0% 230 67.6% 3 68.0 220.7
TITLE WORD 489 8.6% 237 48.5% 15 518.0 1424.4
EXACT TITLE 36 0.6% 29 80.6% 1 2.1 3.0
JOURNAL TITLE 142 2.5% 89 62.7% 75 660.1 1394.5
EXACT JOURNAL 249 4.4% 40 16.1% 2,058 7737.0 11989.6
SUBJECT WORD 247 4.3% 150 60.7% 18 847.3 3447.0
EXACT SUBJECT 111 1.9% 31 27.9% 37 441.8 970.3
KEYWORD 3,529 62.0% 2,040 57.8% 14 1751.2 13649.8
DATE 165 2.9% 53 32.1% 34 799.6 1882.7
ADDED SINCE 51 0.9% 32 62.7% 12 41.6 56.6
PUB TYPE 33 0.6% 15 45.5% 7 68.0 147.3
SUBFILE 6 0.1% 2 33.3% 19 9067.8 18109.5
ID 6 0.1% 2 33.3% 1 1.0 0.0
ISSN 1 0.0% 0 0.0% 1,193 1193.0 0.0
SIC 0 0.0% 0 0.0% 0 0.0 0.0
ILLUS 1 0.0% 0 0.0% 141 141.0 0.0
ARTICLE 44 0.8% 12 27.3% 27 159.7 295.0
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 236 4.1% 89 37.7% 9 2340.0 11290.0
Other indexes 6 0.1% 3 50.0% 40,195 40195.0 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 639 13.0% 282 44.1% 18 1534.3 7981.9
Single 4,263 87.0% 2,417 56.7% 21 2152.8 12646.0
PRESENT commands, by type:
MARC 44.4%
OPAC 33.3%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w