MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 04/01/00 through 04/30/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,276 55,257
2-4 a.m. 687 8,959
4-6 a.m. 243 2,340
6-8 a.m. 498 20,238
8-10 a.m. 3,074 120,742
10-12 a.m. 9,259 360,547
12-2 p.m. 11,788 482,951
2-4 p.m. 12,664 519,055
4-6 p.m. 9,006 406,461
6-8 p.m. 5,131 244,797
8-10 p.m. 4,747 221,104
10-12 p.m. 3,016 139,426
__________ _____________ _________________
Total: 61,389 2,581,877
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 339
Davis 197
Irvine 50
Los Angeles 166
Riverside 0
San Diego 844
San Francisco 318
Santa Barbara 53
Santa Cruz 7
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 55,493
Searchlight 1,663
Other - UC 1,395
Other-Network UC 864
_____
61,389
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 2,938
Davis 1,270
Irvine 393
Los Angeles 4,228
Riverside 0
San Diego 3,524
San Francisco 5,432
Santa Barbara 1,625
Santa Cruz 161
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 2,512,463
Searchlight 4,385
Other - UC 25,957
Other-Network UC 19,501
_____
2,581,877
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.6
Standard deviation in seconds 8.1
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.7
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 21:44
Average session length (minutes:seconds) 21:30
Longest session recorded (minutes:seconds) 265:33
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 888.4
Retrievals per search - standard deviation 7242.3
Percent of searches completed with 0 results 21.5%
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 61,389 10.6%
PRESENT 495,081 85.4%
INIT or CLOSE 22,229 3.8%
OTHER 1,156 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 15,777 16.5% 3,197 20.3% 8 72.0 1694.1
TITLE WORD 6,027 6.3% 1,731 28.7% 2 111.8 694.2
EXACT TITLE 1,103 1.2% 521 47.2% 1 96.7 1383.0
JOURNAL 3,000 3.1% 1,154 38.5% 5 963.5 6614.1
EXACT JOURNAL 973 1.0% 444 45.6% 20 946.3 2551.7
SUBJECT 4,120 4.3% 1,508 36.6% 40 1517.3 7058.8
EXACT SUBJECT 1,153 1.2% 364 31.6% 125 2439.6 11720.8
KEYWORD 37,244 38.9% 6,938 18.6% 35 1457.9 9504.6
AUTHOR AFFIL 101 0.1% 84 83.2% 5 18.3 27.4
FORM/PUB TYPE 3,931 4.1% 621 15.8% 35 464.8 2906.0
DATE 4,142 4.3% 701 16.9% 21 320.9 1591.9
ADDED 612 0.6% 541 88.4% 5 12.6 22.9
CONFERENCE 1 0.0% 1 100% 0 0.0 0.0
LANGUAGE 6,015 6.3% 1,043 17.3% 59 1182.7 6223.0
ISSN 2 0.0% 2 100% 0 0.0 0.0
ISBN 2 0.0% 2 100% 0 0.0 0.0
ID NUMBER 4 0.0% 4 100% 0 0.0 0.0
XXS 135 0.1% 52 38.5% 67 374.3 1021.5
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 457 0.5% 98 21.4% 89 866.5 3599.1
AT 8,532 8.9% 1,594 18.7% 41 1382.4 7018.8
Other indexes 2,456 2.6% 523 21.3% 51 1551.3 10786.2
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 20,262 33.0% 4,679 23.1% 19 915.0 6228.8
Single 41,127 67.0% 8,550 20.8% 25 1236.4 8935.4
PRESENT commands, by type:
MARC 43.9%
OPAC 39.2%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)