MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 03/01/01 through 03/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 2,362 63,922
2-4 a.m. 695 23,990
4-6 a.m. 227 6,275
6-8 a.m. 732 20,082
8-10 a.m. 5,298 175,897
10-12 a.m. 12,697 462,418
12-2 p.m. 15,913 567,628
2-4 p.m. 18,338 639,617
4-6 p.m. 13,559 483,815
6-8 p.m. 8,578 329,650
8-10 p.m. 6,710 248,040
10-12 p.m. 4,159 172,323
__________ _____________ _________________
Total: 89,268 3,193,657
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 505
Davis 519
Irvine 156
Los Angeles 578
Riverside 296
San Diego 775
San Francisco 514
Santa Barbara 229
Santa Cruz 240
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 74,419
Searchlight 9,123
Other - UC 912
Other-Network UC 1,002
_____
89,268
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,221
Davis 3,546
Irvine 4,392
Los Angeles 8,331
Riverside 2,592
San Diego 5,028
San Francisco 3,956
Santa Barbara 3,453
Santa Cruz 1,586
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,049,251
Searchlight 17,387
Other - UC 25,592
Other-Network UC 62,322
_____
3,193,657
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) 21:55
Average session length (minutes:seconds) 22:07
Longest session recorded (minutes:seconds) 280:38
Average number of searches completed per session 0.0
Retrievals per search - median 7.0
Retrievals per search - average 640.1
Retrievals per search - standard deviation 7398.2
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 89,268 11.4%
PRESENT 664,047 84.5%
INIT or CLOSE 30,921 3.9%
OTHER 1,616 0.2%
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 27,445 20.2% 5,085 18.5% 7 54.0 400.3
TITLE WORD 10,199 7.5% 2,757 27.0% 2 129.2 1862.0
EXACT TITLE 1,956 1.4% 910 46.5% 1 28.7 282.1
JOURNAL 5,275 3.9% 1,705 32.3% 5 758.6 4781.6
EXACT JOURNAL 1,345 1.0% 571 42.5% 16 673.8 1779.4
SUBJECT 4,321 3.2% 1,726 39.9% 36 1349.7 5735.0
EXACT SUBJECT 1,529 1.1% 380 24.9% 53 973.7 4039.6
KEYWORD 50,380 37.1% 9,494 18.8% 25 1125.6 10486.7
AUTHOR AFFIL 177 0.1% 123 69.5% 10 280.2 1244.1
FORM/PUB TYPE 5,082 3.7% 929 18.3% 26 481.6 3191.3
DATE 5,226 3.8% 882 16.9% 12 306.1 1756.4
ADDED 604 0.4% 481 79.6% 3 66.8 400.0
CONFERENCE 4 0.0% 2 50.0% 218 218.0 267.3
LANGUAGE 7,372 5.4% 1,383 18.8% 39 865.7 5742.6
ISSN 9 0.0% 5 55.6% 870 5071.8 8874.7
ISBN 30 0.0% 7 23.3% 13 15.0 11.2
ID NUMBER 24 0.0% 18 75.0% 1 1.0 0.0
XXS 72 0.1% 25 34.7% 29 672.7 2408.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 395 0.3% 68 17.2% 45 717.9 2627.0
AT 11,835 8.7% 2,229 18.8% 26 1017.3 6546.1
Other indexes 2,544 1.9% 726 28.5% 43 1270.9 9455.4
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 30,046 33.7% 6,870 22.9% 11 592.6 4803.8
Single 59,222 66.3% 11,873 20.0% 19 916.8 9573.7
PRESENT commands, by type:
MARC 48.6%
OPAC 34.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)