MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/99 through 12/31/99
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 887 38,576
2-4 a.m. 529 17,200
4-6 a.m. 184 15,624
6-8 a.m. 453 24,435
8-10 a.m. 2,201 93,317
10-12 a.m. 5,136 227,534
12-2 p.m. 6,324 297,235
2-4 p.m. 6,984 324,757
4-6 p.m. 5,002 238,625
6-8 p.m. 2,690 159,038
8-10 p.m. 2,214 126,932
10-12 p.m. 1,494 79,932
__________ _____________ _________________
Total: 34,098 1,643,205
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 444
Davis 245
Irvine 36
Los Angeles 318
Riverside 0
San Diego 1,024
San Francisco 186
Santa Barbara 62
Santa Cruz 128
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 30,373
Other - UC 560
Other-Network UC 722
_____
34,098
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 14,092
Davis 1,758
Irvine 945
Los Angeles 2,626
Riverside 0
San Diego 2,760
San Francisco 6,805
Santa Barbara 791
Santa Cruz 233
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 1,595,599
Other - UC 10,142
Other-Network UC 7,454
_____
1,643,205
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.7
Standard deviation in seconds 6.2
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 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 23:17
Average session length (minutes:seconds) 25:03
Longest session recorded (minutes:seconds) 221:44
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 723.7
Retrievals per search - standard deviation 6046.2
Percent of searches completed with 0 results 20.4%
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 34,098 9.4%
PRESENT 317,895 87.7%
INIT or CLOSE 10,258 2.8%
OTHER 220 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 12,253 21.9% 2,311 18.9% 8 53.5 354.0
TITLE WORD 3,978 7.1% 1,304 32.8% 2 119.5 2511.1
EXACT TITLE 782 1.4% 374 47.8% 1 8.0 66.9
JOURNAL 2,399 4.3% 822 34.3% 5 1361.9 10923.8
EXACT JOURNAL 770 1.4% 346 44.9% 45 895.8 1865.8
SUBJECT 2,453 4.4% 905 36.9% 75 1390.0 6664.0
EXACT SUBJECT 657 1.2% 224 34.1% 93 1033.0 2732.7
KEYWORD 16,352 29.3% 2,455 15.0% 40 1372.7 8389.1
AUTHOR AFFIL 90 0.2% 64 71.1% 12 21.2 25.0
FORM/PUB TYPE 1,896 3.4% 496 26.2% 58 700.1 2099.5
DATE 3,095 5.5% 619 20.0% 20 337.6 1233.5
ADDED 811 1.5% 543 67.0% 146 96.2 66.9
CONFERENCE 1 0.0% 1 100% 0 0.0 0.0
LANGUAGE 4,027 7.2% 819 20.3% 88 1269.7 6798.9
ISSN 3 0.0% 1 33.3% 6,933 6933.0 8513.6
ISBN 9 0.0% 4 44.4% 6 4.0 2.7
ID NUMBER 8 0.0% 8 100% 0 0.0 0.0
XXS 33 0.1% 10 30.3% 69 573.0 1367.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 340 0.6% 179 52.6% 123 1443.6 5040.0
AT 4,874 8.7% 1,013 20.8% 51 1197.8 5906.5
Other indexes 1,025 1.8% 345 33.7% 70 669.1 1950.7
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 12,645 37.1% 3,255 25.7% 16 762.9 5167.1
Single 21,453 62.9% 3,717 17.3% 25 987.5 7474.7
PRESENT commands, by type:
MARC 42.6%
OPAC 41.2%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)