MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/02 through 04/30/02
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,145 76,567
2-4 a.m. 940 20,100
4-6 a.m. 360 5,788
6-8 a.m. 805 17,465
8-10 a.m. 4,616 138,196
10-12 a.m. 12,381 433,880
12-2 p.m. 15,963 582,874
2-4 p.m. 17,507 672,862
4-6 p.m. 12,684 462,238
6-8 p.m. 7,586 292,332
8-10 p.m. 6,124 233,657
10-12 p.m. 4,422 153,308
__________ _____________ _________________
Total: 85,533 3,089,267
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 280
Davis 563
Irvine 75
Los Angeles 830
Riverside 10
San Diego 215
San Francisco 366
Santa Barbara 159
Santa Cruz 226
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 70,554
Searchlight 9,281
Other - UC 1,538
Other-Network UC 1,436
_____
85,533
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,467
Davis 6,978
Irvine 786
Los Angeles 68,804
Riverside 482
San Diego 1,325
San Francisco 3,553
Santa Barbara 1,316
Santa Cruz 1,332
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,924,470
Searchlight 5,155
Other - UC 30,497
Other-Network UC 38,102
_____
3,089,267
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 6.8
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) 22:24
Average session length (minutes:seconds) 23:15
Longest session recorded (minutes:seconds) 442:33
Average number of searches completed per session 0.0
Retrievals per search - median 8.0
Retrievals per search - average 1307.4
Retrievals per search - standard deviation 10183
Percent of searches completed with 0 results 20.7%
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 85,533 11.3%
PRESENT 641,383 84.7%
INIT or CLOSE 29,416 3.9%
OTHER 616 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 24,920 19.6% 4,267 17.1% 8 54.5 276.9
TITLE WORD 9,213 7.3% 2,412 26.2% 2 110.0 814.5
EXACT TITLE 1,828 1.4% 739 40.4% 1 146.6 2960.7
JOURNAL 3,983 3.1% 1,317 33.1% 6 1042.8 5822.0
EXACT JOURNAL 1,322 1.0% 456 34.5% 41 1147.0 3942.6
SUBJECT 3,952 3.1% 1,733 43.8% 50 2115.5 10392.1
EXACT SUBJECT 963 0.8% 340 35.3% 121 1658.1 4181.9
KEYWORD 49,657 39.1% 9,503 19.1% 35 2448.4 14205.6
AUTHOR AFFIL 104 0.1% 85 81.7% 9 22.5 24.9
FORM/PUB TYPE 4,341 3.4% 732 16.9% 52 1101.9 4355.5
DATE 5,768 4.5% 949 16.4% 16 493.9 2511.4
ADDED 521 0.4% 419 80.4% 5 11.3 23.1
CONFERENCE 2 0.0% 1 50.0% 4 4.0 0.0
LANGUAGE 7,241 5.7% 1,263 17.4% 75 1813.9 8258.0
ISSN 19 0.0% 4 21.1% 67 29151.5 72052.6
ISBN 29 0.0% 9 31.0% 8 10.7 10.7
ID NUMBER 5 0.0% 5 100% 0 0.0 0.0
XXS 59 0.0% 10 16.9% 176 1427.8 2786.9
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 473 0.4% 82 17.3% 98 1718.4 8616.1
AT 10,163 8.0% 1,853 18.2% 41 1701.5 9938.3
Other indexes 2,492 2.0% 673 27.0% 48 1792.5 11529.9
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 25,809 30.2% 5,673 22.0% 15 987.4 7080.3
Single 59,724 69.8% 12,069 20.2% 24 1929.4 12800.9
PRESENT commands, by type:
MARC 49.7%
OPAC 30.8%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)