MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 12/01/01 through 12/31/01
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,708 35,348
2-4 a.m. 855 12,067
4-6 a.m. 462 5,761
6-8 a.m. 721 15,613
8-10 a.m. 3,135 90,007
10-12 a.m. 7,164 221,543
12-2 p.m. 8,936 293,776
2-4 p.m. 10,254 347,332
4-6 p.m. 7,123 257,996
6-8 p.m. 4,116 159,070
8-10 p.m. 3,436 123,101
10-12 p.m. 2,532 79,872
__________ _____________ _________________
Total: 50,442 1,641,486
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 136
Davis 801
Irvine 139
Los Angeles 677
Riverside 4
San Diego 666
San Francisco 428
Santa Barbara 73
Santa Cruz 46
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 3,380
Other - UC 43,100
Other-Network UC 992
_____
50,442
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,315
Davis 5,937
Irvine 4,250
Los Angeles 8,350
Riverside 50
San Diego 3,038
San Francisco 4,814
Santa Barbara 937
Santa Cruz 777
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 0
Searchlight 0
Other - UC 1,597,384
Other-Network UC 13,634
_____
1,641,486
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.2
Standard deviation in seconds 5.1
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) 21:57
Average session length (minutes:seconds) 22:16
Longest session recorded (minutes:seconds) 233:03
Average number of searches completed per session 0.0
Retrievals per search - median 6.0
Retrievals per search - average 630.0
Retrievals per search - standard deviation 8243.5
Percent of searches completed with 0 results 21.8%
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 50,442 12.5%
PRESENT 333,886 82.9%
INIT or CLOSE 17,083 4.2%
OTHER 1,148 0.3%
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 19,261 26.8% 3,174 16.5% 7 51.9 540.5
TITLE WORD 5,871 8.2% 1,508 25.7% 2 83.6 558.7
EXACT TITLE 1,086 1.5% 410 37.8% 1 18.0 216.1
JOURNAL 2,502 3.5% 757 30.3% 6 1024.1 7235.4
EXACT JOURNAL 690 1.0% 280 40.6% 105 1146.7 2248.2
SUBJECT 1,724 2.4% 717 41.6% 76 1928.3 7455.7
EXACT SUBJECT 535 0.7% 189 35.3% 105 1603.8 4595.6
KEYWORD 25,214 35.1% 5,793 23.0% 32 1302.7 12823.0
AUTHOR AFFIL 87 0.1% 54 62.1% 13 150.0 539.3
FORM/PUB TYPE 1,680 2.3% 249 14.8% 55 755.5 3839.9
DATE 3,553 5.0% 502 14.1% 9 290.1 1693.1
ADDED 611 0.9% 487 79.7% 2 8.2 14.8
CONFERENCE 2 0.0% 1 50.0% 1 1.0 0.0
LANGUAGE 3,037 4.2% 477 15.7% 64 1232.8 5555.7
ISSN 2 0.0% 0 0.0% 9,364 9363.5 13239.2
ISBN 30 0.0% 15 50.0% 1 7.3 7.8
ID NUMBER 6 0.0% 4 66.7% 1 1.0 0.0
XXS 32 0.0% 11 34.4% 47 1687.1 7254.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 237 0.3% 38 16.0% 51 828.0 3523.8
AT 4,483 6.2% 715 15.9% 35 1208.8 6366.3
Other indexes 1,100 1.5% 267 24.3% 40 1172.2 7835.5
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 14,570 28.9% 3,298 22.6% 9 621.6 4420.6
Single 35,872 71.1% 7,680 21.4% 19 878.7 10656.4
PRESENT commands, by type:
MARC 48.0%
OPAC 29.5%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)