MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS
Time period: 07/01/01 through 07/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 99 2,291
2-4 a.m. 41 1,853
4-6 a.m. 20 1,979
6-8 a.m. 51 421
8-10 a.m. 268 2,645
10-12 a.m. 615 6,122
12-2 p.m. 745 5,321
2-4 p.m. 947 10,153
4-6 p.m. 649 6,920
6-8 p.m. 311 2,120
8-10 p.m. 107 1,696
10-12 p.m. 141 1,676
__________ _____________ _________________
Total: 3,994 43,197
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 7
Davis 14
Irvine 2
Los Angeles 47
Riverside 7
San Diego 25
San Francisco 28
Santa Barbara 16
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 26
Searchlight 1,792
Other - UC 2,011
Other-Network UC 19
_____
3,994
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 148
Davis 164
Irvine 102
Los Angeles 23
Riverside 0
San Diego 398
San Francisco 220
Santa Barbara 142
Santa Cruz 0
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 41,969
Other-Network UC 31
_____
43,197
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 2.9
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) 0:09
Average session length (minutes:seconds) 7:08
Longest session recorded (minutes:seconds) 119:42
Average number of searches completed per session 0.0
Retrievals per search - median 0.0
Retrievals per search - average 1076.1
Retrievals per search - standard deviation 9966.3
Percent of searches completed with 0 results 52.9%
Percent of searches entered that are long 0.0%
Percent of long searches completed
(includes partial results) 0.0%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 3,994 26.1%
PRESENT 8,576 56.0%
INIT or CLOSE 2,742 17.9%
OTHER 8 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 312 6.8% 224 71.8% 6 173.2 501.6
TITLE WORD 380 8.3% 212 55.8% 14 730.8 4021.7
EXACT TITLE 40 0.9% 28 70.0% 2 8.6 14.8
JOURNAL TITLE 92 2.0% 77 83.7% 169 971.7 1823.8
EXACT JOURNAL 188 4.1% 23 12.2% 2,895 9987.5 12079.0
SUBJECT WORD 230 5.0% 144 62.6% 13 314.0 1071.4
EXACT SUBJECT 62 1.4% 15 24.2% 43 3386.9 11753.5
KEYWORD 2,873 62.8% 1,527 53.1% 18 1720.0 16062.2
DATE 95 2.1% 63 66.3% 16 183.3 615.9
ADDED SINCE 48 1.0% 30 62.5% 13 39.3 60.0
PUB TYPE 18 0.4% 8 44.4% 17 36.8 44.4
SUBFILE 8 0.2% 6 75.0% 6 6.0 0.0
ID 6 0.1% 0 0.0% 1 1.0 0.0
ISSN 0 0.0% 0 0.0% 0 0.0 0.0
SIC 1 0.0% 0 0.0% 390 390.0 0.0
ILLUS 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 20 0.4% 6 30.0% 25 239.7 771.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
AT 197 4.3% 75 38.1% 19 2245.9 14792.1
Other indexes 6 0.1% 4 66.7% 256 256.0 69.3
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 460 11.5% 247 53.7% 13 1339.7 11228.9
Single 3,534 88.5% 1,867 52.8% 23 2407.1 14790.7
PRESENT commands, by type:
MARC 50.2%
OPAC 27.5%
SCPmm/dd srv.comp MELSRV COMPUTER ARTICLES DATABASES Z39.50 SERVER STATISTICS (w