MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/02 through 02/28/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,627 70,049
2-4 a.m. 1,224 19,739
4-6 a.m. 411 10,321
6-8 a.m. 795 22,475
8-10 a.m. 5,224 166,534
10-12 a.m. 14,497 500,312
12-2 p.m. 18,623 683,743
2-4 p.m. 21,399 805,437
4-6 p.m. 15,970 601,925
6-8 p.m. 9,503 357,825
8-10 p.m. 6,952 285,765
10-12 p.m. 4,571 163,167
__________ _____________ _________________
Total: 101,796 3,687,292
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 315
Davis 616
Irvine 155
Los Angeles 488
Riverside 21
San Diego 411
San Francisco 476
Santa Barbara 73
Santa Cruz 691
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 87,103
Searchlight 9,329
Other - UC 1,351
Other-Network UC 767
_____
101,796
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 4,845
Davis 6,204
Irvine 1,552
Los Angeles 21,129
Riverside 545
San Diego 2,834
San Francisco 5,847
Santa Barbara 721
Santa Cruz 6,081
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,587,289
Searchlight 6,832
Other - UC 26,484
Other-Network UC 16,929
_____
3,687,292
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.3
Standard deviation in seconds 5.5
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.5
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:48
Average session length (minutes:seconds) 24:28
Longest session recorded (minutes:seconds) 262:01
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 814.1
Retrievals per search - standard deviation 9369.4
Percent of searches completed with 0 results 20.9%
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 101,796 11.8%
PRESENT 728,007 84.2%
INIT or CLOSE 33,483 3.9%
OTHER 969 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 27,464 17.3% 4,844 17.6% 8 56.1 448.1
TITLE WORD 10,821 6.8% 2,838 26.2% 2 119.0 3482.9
EXACT TITLE 2,245 1.4% 941 41.9% 1 12.1 253.5
JOURNAL 5,857 3.7% 2,044 34.9% 9 958.8 5227.3
EXACT JOURNAL 1,681 1.1% 676 40.2% 40 943.1 2123.0
SUBJECT 5,065 3.2% 2,077 41.0% 42 1635.1 7261.0
EXACT SUBJECT 1,268 0.8% 438 34.5% 53 844.2 2733.3
KEYWORD 60,377 38.1% 11,412 18.9% 32 1385.0 12994.1
AUTHOR AFFIL 156 0.1% 110 70.5% 8 17.8 28.2
FORM/PUB TYPE 6,232 3.9% 1,102 17.7% 34 564.7 3096.5
DATE 7,141 4.5% 1,239 17.3% 19 427.8 2127.9
ADDED 530 0.3% 421 79.4% 2 36.6 280.8
CONFERENCE 3 0.0% 1 33.3% 39 39.0 50.9
LANGUAGE 10,324 6.5% 1,802 17.5% 52 1319.4 7432.4
ISSN 16 0.0% 12 75.0% 379 802.8 1136.9
ISBN 52 0.0% 30 57.7% 8 9.4 9.4
ID NUMBER 16 0.0% 11 68.8% 1 1.0 0.0
XXS 77 0.0% 18 23.4% 109 2073.6 5288.8
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 677 0.4% 130 19.2% 56 877.8 3256.0
AT 14,532 9.2% 2,654 18.3% 34 1130.6 6757.4
Other indexes 3,750 2.4% 1,036 27.6% 43 1810.9 11486.8
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 33,000 32.4% 7,245 22.0% 15 797.1 5974.0
Single 68,796 67.6% 14,056 20.4% 22 1138.9 12086.9
PRESENT commands, by type:
MARC 46.4%
OPAC 36.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)