MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS
Time period: 02/01/00 through 02/29/00
1.0 SUMMARY STATISTICS
_______________________
Per hour usage:
Time Searches Records Presented
_______________ _____________ _________________
12-2 a.m. 1,337 54,506
2-4 a.m. 783 16,387
4-6 a.m. 154 7,484
6-8 a.m. 545 11,737
8-10 a.m. 4,552 165,296
10-12 a.m. 11,117 497,292
12-2 p.m. 13,948 629,506
2-4 p.m. 15,907 649,665
4-6 p.m. 11,379 515,108
6-8 p.m. 7,057 329,997
8-10 p.m. 5,700 263,843
10-12 p.m. 3,762 177,371
__________ _____________ _________________
Total: 76,241 3,318,192
1.1 SEARCH commands
____________________
Zero results may indicate no access to the database
Number of SEARCH commands issued by location:
Location Total
________ _____
Berkeley 276
Davis 306
Irvine 55
Los Angeles 426
Riverside 0
San Diego 1,476
San Francisco 122
Santa Barbara 30
Santa Cruz 6
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 70,972
Searchlight 752
Other - UC 1,010
Other-Network UC 810
_____
76,241
1.2 Records Presented
______________________
Zero results may indicate no access to the database
Number of Records Presented by location:
Location Total
________ _____
Berkeley 6,013
Davis 5,345
Irvine 1,272
Los Angeles 5,722
Riverside 0
San Diego 2,570
San Francisco 2,579
Santa Barbara 676
Santa Cruz 307
Lawrence Berkeley 0
Lawrence Livermore 0
Los Alamos 0
MELWEB 3,241,845
Searchlight 11,192
Other - UC 17,113
Other-Network UC 23,558
_____
3,318,192
1.3 Response time
__________________
Search response time from receipt of search request
DLA until transmission of search response:
Average in seconds 1.8
Standard deviation in seconds 5.8
Present response time from receipt of present request
DLA until transmission of a present response:
Average in seconds 0.3
Standard deviation in seconds 0.9
2.0 PSYCINFO Database Detailed Statistics
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Median session length (minutes:seconds) 22:02
Average session length (minutes:seconds) 21:59
Longest session recorded (minutes:seconds) 351:53
Average number of searches completed per session 0.0
Retrievals per search - median 9.0
Retrievals per search - average 875.4
Retrievals per search - standard deviation 7567.8
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 76,241 10.4%
PRESENT 626,769 85.8%
INIT or CLOSE 25,486 3.5%
OTHER 1,959 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 18,970 15.5% 3,800 20.0% 8 68.8 1166.4
TITLE WORD 6,929 5.7% 2,022 29.2% 2 141.9 2864.3
EXACT TITLE 1,609 1.3% 739 45.9% 1 28.3 308.9
JOURNAL 4,450 3.6% 1,494 33.6% 6 925.8 4215.3
EXACT JOURNAL 1,672 1.4% 701 41.9% 19 1489.5 9010.7
SUBJECT 5,444 4.4% 2,356 43.3% 76 1996.5 10869.1
EXACT SUBJECT 1,331 1.1% 490 36.8% 102 1974.8 7510.7
KEYWORD 46,558 38.0% 8,531 18.3% 31 1372.9 9757.9
AUTHOR AFFIL 167 0.1% 132 79.0% 10 54.1 139.9
FORM/PUB TYPE 4,431 3.6% 850 19.2% 33 540.3 3055.6
DATE 4,888 4.0% 893 18.3% 24 411.4 1976.7
ADDED 605 0.5% 554 91.6% 5 16.3 32.0
CONFERENCE 15 0.0% 12 80.0% 27 30.3 10.4
LANGUAGE 8,619 7.0% 1,626 18.9% 49 1117.4 6421.8
ISSN 3 0.0% 2 66.7% 52 52.0 0.0
ISBN 4 0.0% 3 75.0% 1 1.0 0.0
ID NUMBER 9 0.0% 9 100% 0 0.0 0.0
XXS 78 0.1% 26 33.3% 137 2530.9 6025.2
ISN 0 0.0% 0 0.0% 0 0.0 0.0
ARTICLE 686 0.6% 154 22.4% 58 721.5 3479.6
AT 12,588 10.3% 2,499 19.9% 40 1094.1 5438.7
Other indexes 3,311 2.7% 766 23.1% 46 1491.7 10246.5
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 26,248 34.4% 6,309 24.0% 19 842.3 5465.4
Single 49,993 65.6% 10,326 20.7% 24 1259.3 9726.0
PRESENT commands, by type:
MARC 44.3%
OPAC 39.9%
SPYmm/dd srv.psy MELSRV PSYCINFO DATABASES Z39.50 SERVER STATISTICS (weekly)