MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 10/01/01 through 10/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,318 57,210
2-4 a.m. 985 17,091
4-6 a.m. 304 3,814
6-8 a.m. 839 20,183
8-10 a.m. 5,734 186,193
10-12 a.m. 15,275 567,618
12-2 p.m. 20,476 776,548
2-4 p.m. 22,300 843,699
4-6 p.m. 15,892 625,225
6-8 p.m. 9,481 379,113
8-10 p.m. 7,735 282,664
10-12 p.m. 4,798 165,373
__________ _____________ _________________
Total: 106,137 3,924,731
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 427
Davis 704
Irvine 77
Los Angeles 1,979
Riverside 3
San Diego 280
San Francisco 403
Santa Barbara 154
Santa Cruz 21
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 7,231
Other - UC 93,871
Other-Network UC 987
_____
106,137
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 9,712
Davis 6,461
Irvine 1,117
Los Angeles 16,826
Riverside 14
San Diego 2,564
San Francisco 11,206
Santa Barbara 1,848
Santa Cruz 496
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 3,855,174
Other-Network UC 19,313
_____
3,924,731
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.4
Standard deviation in seconds 5.9
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.2
Standard deviation in seconds 0.8
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:55
Average session length (minutes:seconds) 24:15
Longest session recorded (minutes:seconds) 326:11
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 909.8
Retrievals per search - standard deviation 9673.5
Percent of searches completed with 0 results 21.6%
Percent of searches entered that are long 0.4%
Percent of long searches completed
(includes partial results) 100%
Commands entered, by type, excluding errors:
Total Percentage
__________ __________
SEARCH 106,137 11.7%
PRESENT 766,785 84.4%
INIT or CLOSE 34,843 3.8%
OTHER 1,027 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 27,942 17.1% 5,053 18.1% 7 62.6 889.2
TITLE WORD 10,949 6.7% 2,998 27.4% 2 104.7 751.7
EXACT TITLE 2,084 1.3% 910 43.7% 1 53.3 808.4
JOURNAL 5,242 3.2% 1,877 35.8% 6 1319.4 12660.8
EXACT JOURNAL 1,926 1.2% 1,079 56.0% 18 1000.1 3286.0
SUBJECT 7,428 4.5% 2,889 38.9% 59 1622.2 7846.7
EXACT SUBJECT 1,701 1.0% 622 36.6% 52 1683.6 6321.5
KEYWORD 63,507 38.8% 12,167 19.2% 31 1535.9 13118.2
AUTHOR AFFIL 166 0.1% 133 80.1% 13 95.9 276.0
FORM/PUB TYPE 6,210 3.8% 1,124 18.1% 33 790.8 4854.6
DATE 7,374 4.5% 1,162 15.8% 13 473.3 2455.6
ADDED 717 0.4% 564 78.7% 3 38.1 190.9
CONFERENCE 7 0.0% 7 100% 0 0.0 0.0
LANGUAGE 9,429 5.8% 1,756 18.6% 57 1534.5 7618.4
ISSN 3 0.0% 2 66.7% 1 1.0 0.0
ISBN 33 0.0% 14 42.4% 11 9.3 9.4
ID NUMBER 19 0.0% 18 94.7% 1 1.0 0.0
XXS 161 0.1% 24 14.9% 85 1606.4 4871.4
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 670 0.4% 125 18.7% 122 1532.2 6458.2
AT 13,851 8.5% 2,759 19.9% 36 1490.4 7983.3
Other indexes 4,115 2.5% 1,146 27.8% 60 1314.1 8426.3
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 34,966 32.9% 8,335 23.8% 16 939.2 6258.7
Single 71,171 67.1% 14,568 20.5% 24 1264.0 12513.1
PRESENT commands, by type:
MARC 46.0%
OPAC 36.6%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)