MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 05/01/02 through 05/31/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,959 83,263
2-4 a.m. 884 22,253
4-6 a.m. 368 8,846
6-8 a.m. 1,147 22,032
8-10 a.m. 5,877 182,147
10-12 a.m. 14,745 499,637
12-2 p.m. 18,033 601,058
2-4 p.m. 20,264 660,730
4-6 p.m. 14,397 503,851
6-8 p.m. 9,422 330,635
8-10 p.m. 7,370 256,184
10-12 p.m. 5,637 191,847
__________ _____________ _________________
Total: 101,103 3,362,483
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 279
Davis 507
Irvine 54
Los Angeles 860
Riverside 2
San Diego 522
San Francisco 438
Santa Barbara 723
Santa Cruz 118
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 84,654
Searchlight 10,042
Other - UC 1,454
Other-Network UC 1,450
_____
101,103
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 3,756
Davis 4,706
Irvine 1,351
Los Angeles 15,487
Riverside 13
San Diego 3,407
San Francisco 9,310
Santa Barbara 4,894
Santa Cruz 1,000
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,253,385
Searchlight 6,144
Other - UC 30,377
Other-Network UC 28,653
_____
3,362,483
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 3.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.4
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:33
Average session length (minutes:seconds) 23:39
Longest session recorded (minutes:seconds) 409:11
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 626.2
Retrievals per search - standard deviation 6140.2
Percent of searches completed with 0 results 21.0%
Percent of searches entered that are long 0.3%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 101,103 12.6%
PRESENT 668,292 83.2%
INIT or CLOSE 32,900 4.1%
OTHER 808 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 29,338 18.6% 5,239 17.9% 7 53.7 336.7
TITLE WORD 12,547 8.0% 2,895 23.1% 2 106.7 1518.3
EXACT TITLE 2,288 1.5% 1,037 45.3% 1 7.1 46.9
JOURNAL 5,544 3.5% 2,061 37.2% 6 1127.7 10352.0
EXACT JOURNAL 1,874 1.2% 821 43.8% 18 1063.0 7304.2
SUBJECT 4,232 2.7% 1,771 41.8% 43 1519.7 6392.6
EXACT SUBJECT 960 0.6% 317 33.0% 91 1454.0 4522.5
KEYWORD 58,548 37.2% 11,357 19.4% 28 1041.7 7877.7
AUTHOR AFFIL 156 0.1% 126 80.8% 13 15.5 15.7
FORM/PUB TYPE 6,145 3.9% 1,151 18.7% 36 494.6 2425.6
DATE 6,969 4.4% 1,270 18.2% 15 345.9 1800.9
ADDED 560 0.4% 446 79.6% 4 7.3 12.5
CONFERENCE 6 0.0% 5 83.3% 1 1.0 0.0
LANGUAGE 9,247 5.9% 1,708 18.5% 53 1027.0 5717.0
ISSN 23 0.0% 10 43.5% 538 1621.8 2518.2
ISBN 55 0.0% 35 63.6% 16 15.5 9.5
ID NUMBER 13 0.0% 12 92.3% 1 1.0 0.0
XXS 32 0.0% 8 25.0% 131 2902.3 6874.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 589 0.4% 126 21.4% 56 657.2 3689.8
AT 15,185 9.6% 2,906 19.1% 31 920.6 5643.6
Other indexes 3,218 2.0% 951 29.6% 44 1682.5 11797.2
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 34,161 33.8% 7,567 22.1% 14 611.0 4514.9
Single 66,942 66.2% 13,625 20.4% 19 882.7 7817.0
PRESENT commands, by type:
MARC 46.1%
OPAC 35.0%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)